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Top 10 Plug Valve Brand & Manufacturers

This section provides a list of the top 10 Plug Valve manufacturers, Website links, company profile, locations is provided for each company. Also provides a detailed product description of the Plug Valve, including product introduction, history, purpose, principle, characteristics, types, usage and purchase precautions, etc.

Manufacturers （Ranking in no particular order）

: Xi'an Aerospace Yuanzheng Fluid Control Co., Ltd.

Address: No. 289, Feitian Road, Chang'an District, Xi'an, Shaanxi Province

Company Overview

Xi'an Aerospace Expedition Fluid Control Co., Ltd. (hereinafter referred to as Aerospace Expedition) is a high-tech joint-stock company established by the 11th Institute of China Aerospace Science and Technology Corporation as the main sponsor. Since its establishment, relying on the advantages of liquid rocket engine technology and talents, facing the international and domestic markets, focusing on the fields of fluid control technology and sensing and control mainly based on special valves, it is committed to providing customers with first-class products and services. Over the years, Aerospace Expedition has insisted on taking the path of independent innovation and development, actively promoting and applying aerospace superior technologies to the civilian field, and striving to be a leader in technological innovation and science and technology. The LNG low-temperature regulating valve and low-temperature economic valve successfully developed by adopting low-temperature sealing technology, low-temperature testing technology and valve performance stability technology have successfully replaced imports and have been mass-produced, achieving good economic and social benefits. The pulse cleaning angle valve has the characteristics of fast opening and closing speed, high temperature resistance and long life, and has successfully replaced imports. Long-life zero-leakage double-off plug valve; high-pressure differential, anti-cavitation, noise-reducing pressure reducing regulating valve; large adjustment ratio high-precision regulating ball valve and other oil pipeline valves have been identified and approved by large enterprise groups such as Sinopec, and successfully won the bid for international bidding projects, achieving a historic breakthrough. Relying on military technology, we have successfully developed a variety of special sensors (involving pressure, temperature, speed, etc.), controllers and ground test equipment, as well as non-standard measurement and control systems for use in harsh environments such as high (low) temperature, high pressure, and large vibration. They are widely used in military units such as aerospace, aviation, weapons, and ships, as well as many factories and mining enterprises. After years of development, Aerospace Expedition has formed a core business based on special valves and sensor measurement and control technology and has continuously extended and expanded it, establishing good strategic cooperative relations with many companies such as Sinopec, Aviation Group, China Shipbuilding Industry Corporation, China Ordnance, and Shaanxi Automobile Group.

: Sichuan Jingkong Valve Manufacturing Co., Ltd.

Address: No. 3, Section 3, Shenzhen Road, Guanghan City, Deyang City, Sichuan Province

Company website: http://www.kconvalve.com

Company Overview

Sichuan Jingkong Valve Manufacturing Co., Ltd. was founded in 2001. It is a national high-tech enterprise that focuses on the manufacture of pipeline valves and process control valves. As a developer and manufacturer of long-distance pipeline and process control valves, Jingkong Valve is committed to improving its product R&D capabilities, innovation capabilities and engineering supporting capabilities, and is committed to providing professional and cost-effective solutions for engineering customers. In the course of more than ten years of development, Jingkong Valve has created the "KCON" brand and obtained complete industry qualifications and rich engineering performance. The solid experience of engineering projects has established its position in the mainstream market of China's oil and gas, and has become a core supplier of the three major oil companies, CNPC, Sinopec, and CNOOC. At the same time, Jingkong Valve is committed to expanding overseas markets and has become a qualified supplier for many companies including British Petroleum. The entire manufacturing process of precision control valves has strict internal control management standards throughout the product research and development, production and manufacturing, assembly and testing, and has passed TS, APIQ1, API6D, CE/PED, ISO9001, ISO14001, OHSAS18001 certification, API607, API6FA fire protection certificates issued by German Rhine (TüV) certification, and ATEX valve explosion-proof certificate issued by Norwegian Classification Society certification. The ball valves, plug valves, fully welded ball valves, gate valves, stop valves, check valves and other products produced by Jingkong Valve have been successfully used in the Sino-Russian East Line Natural Gas Pipeline Project, the Central Asia Pipeline C Line Project, the Sichuan-Eastern Gas Pipeline Project, the Jinan-Qingdao Gas Pipeline Line 2 Project, the Fuling Shale Gas Project, the Offshore Mobile Test Production Platform "Offshore Oil 162", the Sino-Kazakhstan Crude Oil Pipeline Project, Pakistan LNG Skid-mounted Equipment, Azerbaijan BP/AIOCG350-356 Project, Algeria Natural Gas Loop GEMØ48" Phase II HassiR'mel Project, India theParadip Integrated Offshore Crude Oil Handling Project, Ghana Early Phase Gas Infrastructure Project, Awandan Oil and Gas Processing Plant Project, Iraq Missan Oilfield Group Development Project, TAKREER NORMHANDLING, TREATMENT & DISPOSAL PROJECT AT BeAAT Project, Egypt Natural Gas Company Giza North Power and South Helwan Project and other engineering projects.

: Chengdu Chengfeng Fluid Technology Group Co., Ltd.

Address: No. 6, Guanghua Road, Jinyuan Town, Dayi County, Chengdu City, Sichuan Province

Company website: http://www.china-cfft.com

Company Overview

Chengdu Chengfeng Fluid Technology Group Co., Ltd. ("CFFT") is a professional, high-tech industrial group that specializes in the research and manufacture of various valves, the research and development, production and sales of various fluid control machinery. It is the vice-chairman unit of the China General Machinery Industry Association, the vice-chairman unit of the Valve Branch of the China General Machinery Industry Association, and the chairman unit of the Sichuan Valve Industry Association. The Group holds a controlling stake in Chengdu Chenggao Valve Co., Ltd. ("CHV") and has a subsidiary in Houston, USA ("ISV"). The Group has been engaged in market research and technical development of domestic and foreign petrochemical, aerospace and power station valves. It has a group of well-known domestic valve experts, more than 100 national patents and high-tech achievements. Its technical development capabilities and production and manufacturing capabilities are at the advanced level of the domestic industry. Its products are widely used in petrochemical, natural gas, refining, aerospace, metallurgy, power stations and urban gas transmission and distribution, and are exported to more than 20 countries and regions. The 56" Class 900 fully welded ball valve developed and successfully passed the appraisal by Chenggao Valve Company broke the world record for high-pressure large-diameter fully welded pipeline ball valves. The product won the first prize of China's Mechanical Industry Science and Technology. In 2017, it was awarded the title of "Single Champion Demonstration Enterprise" by the Ministry of Industry and Information Technology. In 2019, the "Four-seat Fixed Ball Valve for Oil and Gas Pipelines" developed by the company once again won the first prize of China's Mechanical Industry Science and Technology. The Group has a complete information management system, covering PDM (product design data management system), ERP (enterprise resource management system), MES (production management system), DMS (document management system), CRM (customer relationship management system), SRM (supplier management system), DNC (distributed numerical control management system), OA (office automation system), Inventor (3D visualization entity simulation software), CAD/CAE/CAM (computer-aided design/computer-aided analysis/computer-aided manufacturing integrated system), data backup and recovery system, financial computerization and other information technology platforms, integrating product research and development, product marketing, raw material procurement, supplier management, material management, product manufacturing, equipment management, document management, human resource allocation and other processes, optimizing enterprise resources, improving the economic benefits of enterprises, enhancing the core competitiveness of enterprises, establishing a complete supply and marketing system and after-sales service network, and making them run efficiently. The Group adheres to the concept of "following the road of technological innovation and building the dream of brand rise" and the corporate purpose of "pursuing 100% customer satisfaction". After years of dedicated operation and creation, it has gathered high-end professional talents from all aspects, maintained a sustained and stable growth in economic and social benefits, and precipitated a deeper and more unique corporate culture. The Group owns brands such as "Chengfeng", "CHV" and "CCFV" which enjoy high visibility and reputation in the user market and is one of the important members of the Chinese energy market and the world energy market.

: Flowserve (Shanghai) Fluid Equipment Co., Ltd.

Address: 2nd Floor, Building 2, No. 255, Guiqiao Road, Shanghai Pilot Free Trade Zone

Company website: https://www.flowserves.cn

Company Overview

Founded more than 200 years ago, Flowserve now has more than 300 offices around the world, more than 17,500 employees, including more than 180 rapid response centers, providing after-sales parts and services to customers. In addition, Flowserve offers more than 100 pump models and a range of valves and sealing products. Flowserve conveys, controls and protects the flow of materials in the world's most critical industries - including oil and gas, renewable energy, chemicals, power generation and water. Flowserve relies on its product lines, engineering, project management and service expertise to help global customers solve the most critical flow control challenges. Flowserve has an excellent combination of products, engineering and after-sales services to help customers achieve tangible business results: reduce operating costs, optimize performance, extend equipment life, reduce risks and increase productivity. Flowserve is committed to providing customers around the world with excellent flow control solutions to make the world a better place for everyone.

: Kerry International Trading (Beijing) Co., Ltd.

Address: Room 1103, SK Building, No.6, Jianguomenwai Street, Chaoyang District, Beijing

Company website: https://www.barksdalechina.com

Company Overview

Crane is a diversified manufacturer of precision industrial products, with a very important position in many specialized segments, including fluid control, aerospace and electronics, and composite materials. Crane has a long history of more than 160 years and was listed on the New York Stock Exchange in 1936 (stock code: CR). The company has more than 8,000 outstanding employees from 34 countries, and Crane always adheres to the principle of honest transactions at all times. Crane has entered China since 1995. With a long history of more than 164 years, Crane adheres to the ethical standards and industry codes of conduct of Crane people, and provides high-quality products and services to Chinese customers in multiple segments such as aerospace, electronics, fluid control and engineering materials. Crane has established 4 branches in China, with approximately 300 employees and annual sales revenue of approximately US$100 million. Crane Process Technology Division provides high-performance engineering products for global fluid control applications, including valves, pumps, control products and water treatment equipment. Its subordinate business units include Crane Chemical, Pharmaceutical and Energy Industries, Crane Nuclear Power, Crane Building and Utilities, Crane Pumps, Crane Supply and Pasteur Control Products. Crane's Payment and Vending Division consists of two solution divisions, producing high-quality advanced technology vending equipment and payment systems. Crane's Aerospace and Electronics Division is a trusted industry leader. We provide reliable high-precision technology and provide customers with innovative solutions to support their performance in major aviation and space markets. Crane Composite Materials, a wholly owned subsidiary of Crane, is a global leader in the production of glass fiber reinforced plastic panels. Combining composite material science, process and technical expertise, it has a deep understanding of customer needs and provides innovative products beyond traditional metal and wood textures. Lightweight composite products provide unparalleled strength and durability.

: Schlumberger (China) Investment Co., Ltd.

Address: Room 405, No. 401, 4th Floor, Building 20, Jiuxianqiao Road, Chaoyang District, Beijing

Company website: https://www.slb.com/zh-cn/

Company Overview

Schlumberger is a global technology company committed to energy innovation and building a harmonious home for the earth. Every day, more than 90,000 employees from more than 160 countries and regions promote technological innovation in more than 120 countries and regions around the world. Every year, Schlumberger's investment in R&D exceeds the sum of several major international competitors. More than 90 scientific research, technology and manufacturing centers distributed around the world provide technical support to achieve what customers see and think. Schlumberger entered mainland China in 1980 and established Schlumberger China Energy Technology Service, Beijing Earth Science Center, Shanghai Qingpu Technology Center and Asia Procurement Center. Today, Schlumberger is committed to providing customers with result-oriented solutions. Schlumberger focuses on creating and expanding the new energy system of the future, developing technologies in five areas: carbon solutions, hydrogen, geothermal and geological energy, energy storage and key minerals, and achieving industrial decarbonization, energy digitalization and low-carbon emission reduction of oil and gas. Schlumberger's goal is to explore energy for the benefit of the public and innovate for the future of energy. As an innovator, this has been Schlumberger's mission for 100 years. Today, the world faces the greatest balancing challenge of providing reliable, convenient and affordable energy to meet growing demand, while rapidly decarbonizing to achieve a sustainable future. Schlumberger is working hard to find the answer. Every day is closer to the goal. Schlumberger has a presence in more than 100 countries around the world, with employees representing nearly twice as many nationalities. Every day, Schlumberger is working to decarbonize oil and gas, deliver digital services at scale, and develop scalable new energy technologies to accelerate the energy transition.

: Ance Valves (Taicang) Co., Ltd.

Address: No. 1, Zhengzhou Road, Taicang Economic Development Zone, Suzhou City, Jiangsu Province

Company Overview

AZ Valves is a professional company with advanced technology for manufacturing special valves with high corrosion resistance. Founded in 1965 in Schonach/Black Forest, Germany, AZ has been developing steadily since then. In 1992, the company moved into the new company building in Moenchweiler, which is accompanied by an advanced machine park. Today, AZ has about 300 employees worldwide. The company's strengths: the manufacture of special valves, especially all types of plug valves and sampling systems for various media, excellent customer service, fast delivery services and absolute compliance with contracts. In view of the company's high quality standards, the company's products are now distributed in almost all countries and regions in the world. AZ valves are mainly used in the chemical, petrochemical and power industries and other fields. The outstanding features of AZ valves are the long working life of plug valves and the application of a wide variety of special materials. AZ does everything possible to make employees realize their value, give them challenges and corresponding rewards. They are working for a successful company and fully enjoy the fun of work. The company provides various opportunities for employees to advance and develop, including overseas training, promotes a diversified corporate culture, and offers competitive salaries and benefits.

: Fluosel Special Valves (Suzhou) Co., Ltd.

Address: Jinqiao Industrial Park, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province

Company website: http://fluorosealvalves.com

Company Overview

Fluoroseal is a professional plug valve manufacturer headquartered in Montreal, Canada. Fluoroseal can produce two-way, full-bore, three-way plug valves and various special plug valves. At the same time, Fluoroseal also produces various types of valves such as fire-resistant plug valves, alcohol valves, chlorine valves, etc. suitable for special working conditions. The main pressure-bearing parts, valve bodies, plugs, and valve covers of Fluoroseal valves have passed factory testing and certification. All parts have passed continuous inspection and production supervision to ensure the quality level of the products.

: Jiangsu Shentong Valve Co., Ltd.

Address: Nanyang Industrial Park, Qidong City, Nantong City, Jiangsu Province

Company website: http://www.stfm.cn

Company Overview

Jiangsu Shentong Valve Co., Ltd. is located in Nanyang Town, Qidong City, Jiangsu Province, across the river from Shanghai. The company is 105 kilometers away from Shanghai Pudong Airport, with convenient transportation. The company's registered capital is 486 million yuan. The company specializes in the research and development, production and sales of new special valves, mainly including butterfly valves, ball valves, gate valves, stop valves, check valves, regulating valves, non-standard valves and other seven categories, 145 series and more than 2,000 specifications. These products are widely used in metallurgy, nuclear power, thermal power, coal chemical industry, oil and natural gas gathering and transportation, and petroleum refining. With good assets and operating conditions, it has been rated as an AAA-level credit enterprise for twelve consecutive years. The company was listed on the Shenzhen Stock Exchange on June 23, 2010. It is an A-share listed company in Qidong City, Jiangsu Province. The stock abbreviation is: Jiangsu Shentong, and the stock code is: 002438. The company's metallurgical special valves are mainly used in energy-saving and emission reduction systems such as blast furnace gas dry dust removal and gas recovery in the metallurgical industry; it is a major domestic supplier of nuclear-grade butterfly valves and ball valves. The company has established scientific and technological innovation platforms such as Jiangsu Nuclear Power Valve Engineering Technology Research Center, Jiangsu Enterprise Technology Center, Jiangsu Nuclear Power Valve Key Laboratory, and National Postdoctoral Research Station. It has established close strategic cooperation relations with more than 10 universities and research institutes such as Southeast University, Nanjing University of Science and Technology, Beijing Jiaotong University, Shanghai Jiaotong University, Shanghai Rubber Research Institute, Hefei General Machinery Research Institute, Shanghai Nuclear Engineering Research Institute, CGN, China Science and Technology, and Institute of Physics of the Chinese Academy of Sciences, and has co-built an enterprise research institute with China Science and Technology Nuclear Power Technology Research Institute. It has introduced 1 provincial dual-innovation talent and 3 provincial doctoral gathering plan. The company adheres to the business philosophy of "creating value for users, creating opportunities for employees, creating returns for shareholders, and creating wealth for society", and adheres to the business idea of "consolidating metallurgy, developing nuclear power, expanding petrochemicals, focusing on environmental protection, and expanding exports". It strives to develop into a Chinese valve production backbone enterprise with important influence and certain international competitiveness in 3-5 years, providing domestic and foreign customers with high-quality nuclear power, metallurgy, petrochemical, and thermal power special valve products to achieve the company's leapfrog development.

: Viduli Valves Co., Ltd.

Address: No. 20, Xingyu Road, Airport New District, Wenzhou City, Zhejiang Province

Company website: http://www.weidouli.com/

Company Overview

Weiduli Valve Co., Ltd. was founded in 1989 and is now located at No. 20 Xingyu Road, Wenzhou Airport New District. It is a national high-tech enterprise integrating R&D, production and sales of rare and precious metal valves. The company has a construction area of 43,500 square meters, a registered capital of 156.89 million yuan, more than 280 employees, 52 R&D personnel, including 25 with middle and senior professional titles. The company has obtained 68 national patents, including 10 invention patents. It is the drafting unit of titanium and titanium alloy valve standards and is currently a professional special alloy valve manufacturer in China. The company has passed the National Special Equipment Pressure Pipeline Component Manufacturing License (TS) A1 level, China Classification Society (CCS) certification, Norwegian Classification Society (DNV) ISO9001 international quality system certification, American Petroleum Institute API certification, EU CE certification, import and export Class A enterprise certification, customs CU-TR certification, environmental health and safety ISO14001 and ISO18001 certification. The company has more than 300 high-end equipment including digital intelligent workshop, 100,000-level purification workshop, 2500LB high-pressure gas test bench, 800℃ high-temperature online test bench, low-temperature online test bench, fluid property test bench, y-ray non-destructive testing room, CNC machining center, vacuum welding special equipment, vacuum surface modification equipment, etc. It is equipped with American Niton handheld XRF alloy analyzer, three-coordinate measuring instrument, German special direct reading spectrometer, metallographic microscope, ultrasonic thickness gauge, Burke hardness tester, helium mass spectrometer leak detector, iron pollution detector and other test and detection equipment. In terms of intelligent management, it has successively introduced intelligent sales management system, PLM design management system, ERP management system, MAS production management system, Solidworks 3D design system, fluid calculation and strength calculation system. The company mainly deals in titanium and titanium alloys, zirconium and zirconium alloys, nickel and nickel alloys, Hastelloy alloys, Monel alloys, Inconel nickel alloys, nickel aluminum bronze, No. 20 alloy, 904L, duplex steel, composite materials and other special material valves and stainless steel valves. It has certain advantages in China. The products are mainly used in the fields of petrochemicals, fine chemicals, seawater desalination, metallurgy, papermaking, textiles, electricity, natural gas, etc. to introduce devices for valve matching. The products are sold to major and medium-sized enterprises in China, and exported to more than 40 countries and regions including Europe, America, the Middle East, Japan, South Korea, etc. The company is committed to providing customers with various valve solutions for harsh working conditions. Over the years, the company's products and services have been widely praised and trusted by customers.

Categories related to Plug Valve

Plug Valve Information

Information

Plug Valve Information

What is a Plug Valve?

A plug valve is a type of valve that uses a cylindrical or conical plug with a hole through it to control the flow of a fluid. The plug rotates within the valve body to either align the hole with the inlet and outlet ports (allowing flow) or to block the ports (stopping flow). The design of the plug and its sealing mechanism play a crucial role in the valve's performance.

History of Plug Valve

Early Origins: Plug valves have a long history and were among the early types of valves developed. Their origin can be traced back to ancient times when simple devices were used to control the flow of water and other fluids. The basic concept of a rotatable plug to control flow was a practical solution for early fluid - handling systems.
Industrial Revolution and Beyond: With the Industrial Revolution, plug valves saw improvements in materials and manufacturing techniques. The use of cast iron and brass became more common for the valve body and plug, enhancing their durability. As industrial processes grew more complex, the design of plug valves evolved to meet the demands of handling different fluids and pressures.
Modern Developments: In modern times, plug valves have been refined with the use of advanced materials such as stainless steel, high - performance plastics, and specialized alloys. The development of better sealing technologies, including elastomeric seals and precision - machined surfaces, has improved their leak - tightness. Additionally, the integration of automated actuators has allowed for remote operation and more precise control in industrial applications.

Purpose of Plug Valve

Flow Control: The primary purpose of a plug valve is to regulate the flow of fluids. It can be used to start, stop, or throttle the flow of liquids or gases. In applications such as in a chemical plant's piping system, a plug valve can control the flow of reactants to a reactor or the transfer of products to storage tanks.
Isolation: Plug valves are effective for isolating different parts of a system. By closing the valve, it can prevent fluid from flowing between different sections of a pipeline or equipment. This is useful during maintenance, when a particular component or section needs to be separated from the rest of the system to perform repairs or modifications.
On - Off Service: They are well - suited for applications that require simple on - off operation. For example, in a water distribution system, a plug valve can be used to quickly shut off the water supply to a specific area or to open it when needed.

Principle of Plug Valve

Rotational Plug Movement: The operation of a plug valve is based on the rotation of the plug. The plug is typically connected to a handle or an actuator. When the handle or actuator is turned, the plug rotates within the valve body. The position of the hole in the plug relative to the inlet and outlet ports determines the state of the flow. If the hole is in line with the ports, the flow path is open, and the fluid can pass through. If the hole is misaligned with the ports, the flow is blocked.
Sealing Mechanism: The seal between the plug and the valve body is essential for the valve's performance. High - quality seals, often made of materials like rubber or PTFE (polytetrafluoroethylene), are used to prevent fluid leakage. The design of the plug and the valve body includes features to ensure a tight seal when the valve is in the closed position. This may involve precision - machined surfaces and a proper seating arrangement for the seals.

Features of Plug Valve

Quick - Acting Operation: Plug valves generally have a relatively fast - acting operation. The rotation of the plug allows for a quick transition from a fully open to a fully closed position or vice - versa. This is beneficial in applications where rapid response is required, such as in emergency shut - off systems.
Low - Pressure Drop: When the plug valve is open, the flow path through the hole in the plug provides a relatively straight - through passage. This results in a low pressure drop across the valve compared to some other valve types, such as globe valves. A low - pressure drop means that less energy is required to move the fluid through the valve, improving the overall energy efficiency of the system.
Good Sealability: With proper sealing materials and design, plug valves can provide an excellent seal. The seals can withstand a wide range of pressures and temperatures and prevent fluid leakage. This is crucial in applications where fluid containment is critical, such as in the handling of hazardous chemicals.
Versatility in Fluid Handling: Plug valves can handle a wide variety of fluids, including water, oils, gases, and some slurries. The materials used in the construction of the valve, such as the plug material (e.g., stainless steel, brass), valve body (e.g., PVC, carbon steel), and seals can be selected to be compatible with different fluid chemistries and operating conditions.[!--empirenews.page--]
Simple Operation: The operation of a plug valve is relatively straightforward. A simple handle can be used to turn the plug, making it easy to understand and operate. In addition, plug valves can also be equipped with automated actuators, such as electric or pneumatic actuators, for remote control and integration into more complex systems.

Types of Plug Valve

Conventional Plug Valve: This is the most basic type of plug valve, with a cylindrical or conical plug that rotates to control the flow. It has a simple design and is widely used in various applications for its reliable on - off and flow - control capabilities.
Lubricated Plug Valve: These valves have a lubricant - injected system. The lubricant helps to reduce friction between the plug and the valve body and also enhances the sealing performance. Lubricated plug valves are often used in applications where a tight seal and smooth operation are required, such as in the oil and gas industry.
Eccentric Plug Valve: The plug in an eccentric plug valve is designed with an offset or eccentric shape. This design allows for a more positive shut - off and better sealing, especially in applications where the valve may be subject to vibration or pressure fluctuations. Eccentric plug valves are used in systems where a reliable seal is crucial, such as in high - pressure or critical - flow applications.

Precautions for using Plug Valve

Proper Installation: Plug valves must be installed correctly according to the manufacturer's instructions. This includes proper alignment with the pipeline, correct connection of the actuator (if applicable), and ensuring a stable mounting to prevent vibration and misalignment. Incorrect installation can lead to poor sealing, difficulty in operation, and premature wear of the valve components.
Fluid Compatibility: It's essential to ensure that the valve materials are compatible with the fluid being handled. Consider the chemical composition, temperature, and viscosity of the fluid. Using a valve that is not suitable for the fluid can lead to corrosion, erosion of internal components, and leakage. For example, a plug valve used to handle corrosive chemicals should have corrosion - resistant materials and seals.
Operating Pressure and Temperature: Operate the plug valve within its specified pressure and temperature limits. Excessive pressure can cause the valve to leak or damage its internal components. High - temperature fluids can affect the performance of the seals and the movable element, leading to a poor seal or difficulty in operation. Regularly monitor the operating conditions to ensure the valve's proper function.
Pre - Operation Checks: Before starting the valve, conduct a thorough inspection. Check for any signs of damage during transportation or installation, such as cracks in the valve body, damaged seals, or loose connections. Ensure that the plug rotates freely and that the actuation mechanism (if applicable) functions correctly. Also, check for any debris or foreign objects inside the valve that could affect its operation.
Maintenance and Inspection: Regular maintenance is crucial for the proper functioning of a plug valve. Periodically clean the valve to remove any accumulated dirt, scale, or debris that could affect the seal or the movement of the plug. Check and replace worn - out seals, bearings, and other components as needed. Lubricate the moving parts according to the manufacturer's recommendations to ensure smooth operation. Additionally, test the valve's performance regularly to ensure a reliable shut - off.

Things to consider when purchasing Plug Valve

Fluid Characteristics: Analyze the type of fluid (liquid or gas), its chemical composition, viscosity, temperature, and any other relevant properties. Choose a plug valve with materials and seals that are compatible with the fluid. For example, if the fluid is a high - viscosity liquid, a valve with a larger bore and a more robust actuation mechanism may be required to ensure proper operation.
Flow Requirements: Consider the flow rate and the need for a full - bore or restricted - flow design. The size of the valve (diameter of the inlet and outlet) should be selected according to the expected flow volume and the pipe diameter. Also, think about whether a full - bore valve is necessary for your application to minimize pressure drop and ensure efficient flow.
Actuation Method: Decide whether a manual, electric, or pneumatic actuation method is more suitable for your application. Manual plug valves are simple and cost - effective, suitable for applications where the valve is not frequently operated or where remote control is not necessary. Electric and pneumatic valves offer the advantage of remote operation and can be integrated into automated systems, but they are generally more complex and costly.[!--empirenews.page--]
Pressure and Temperature Ratings: Check the valve's pressure and temperature ratings to ensure that it can handle the operating conditions of your system. The valve should be able to withstand the maximum expected pressure and temperature without failure or performance degradation. Consider any potential pressure surges or temperature fluctuations in your application when selecting the valve.
Budget: Establish a budget for the plug valve purchase. The cost can vary depending on the valve's size, type, materials, actuation method, and brand. Consider not only the initial purchase price but also the long - term costs such as maintenance, replacement parts, and potential downtime. A more expensive valve with better quality and durability may be a more cost - effective choice in the long run if it reduces the need for frequent repairs and replacements.
Brand and Reputation: Choose a reputable brand with a good track record in manufacturing plug valves. Read customer reviews and ask for recommendations from other users or industry experts to assess the quality, reliability, and performance of different models. A well - known brand is more likely to provide reliable customer service and replacement parts.

Terms of Plug Valve

Plug Material: The material of the plug, such as stainless steel, brass, or other alloys, determines the valve's resistance to corrosion, mechanical strength, and compatibility with the fluid. The choice of plug material should be based on the characteristics of the fluid and the operating environment.
Seal Material: The material of the seals, such as PTFE or other elastomers, determines the valve's ability to provide a leak - tight seal. The seal material should be compatible with the fluid and able to withstand the operating pressure and temperature.
Flow Coefficient (Cv): A measure of the valve's capacity to pass a given volume of fluid at a specific pressure drop. It is used to size the valve correctly for a particular application and to predict its flow performance. The Cv value is usually provided by the manufacturer and is an important parameter in valve selection.
Actuation Type: Refers to how the valve is operated, such as manual, electric, or pneumatic. The actuation type affects the valve's response time, ease of operation, and integration with control systems.
Pressure Rating: The maximum pressure that the valve can withstand and operate under. It is an important specification to ensure that the valve is suitable for the intended application and to prevent failure due to over - pressurization.