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Product Center

We manufacture more than a thousand specifications of over ten series of products, including safety valves, power station valves, steam extraction check valves, gate valves, globe valves, check valves, hard-sealed ball valves, all-welded ball valves, ball valves, butterfly valves, and other models and specifications.

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Spring-loaded fully open and close safety valve

Spring-loaded fully open and close safety valve

A42

Spring-loaded fully open and close safety valve

WA42 series bellows balanced safety valve

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Spring-loaded full-opening and closing safety valve with wrench

Spring-loaded full-opening and closing safety valve with wrench

A44

Spring-loaded full-opening and closing safety valve with wrench

The A44Y-C type is suitable for equipment or pipelines with air, petroleum gas, etc., as the medium, where the operating temperature is ≤300℃.
The A44Y-P/R type is suitable for equipment or pipelines with corrosive gaseous media, where the operating temperature is ≤200℃, and serves as a pressure relief device.
Connecting flanges comply with JB/T79 standard.

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Spring-loaded full-opening and closing safety valve with wrench

Spring-loaded full-opening and closing safety valve with wrench

A44

Spring-loaded full-opening and closing safety valve with wrench

A44 series spring-loaded full-opening and closing safety valve with handwheel

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Pilot-operated safety valve

Pilot-operated safety valve

A46

Pilot-operated safety valve

A pilot-operated safety relief valve is a novel safety valve. It is mainly used in the fields of petroleum, natural gas, chemical industry, power, metallurgy, and urban gas, and is the best overpressure protection device for pressurized equipment, containers, or pipelines. Its main advantages are that the variable spring directly acts on the pilot valve indirectly, improving the sensitivity of the action, and the main valve adopts a sleeve piston type, a double-sealed valve seat structure, high action accuracy, good repeatability, fast reseating, no leakage, high back pressure discharge capacity, long working life, and stable and reliable operation. It can also be adjusted online, and after repeated tripping and discharge, it can still automatically reseat, close tightly, and is easy to operate and maintain.

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Pilot-operated safety valve

Pilot-operated safety valve

A46

Pilot-operated safety valve

A46 series pilot-operated safety valve

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Spring-loaded safety valve with lever handle

Spring-loaded safety valve with lever handle

A47

Spring-loaded safety valve with lever handle

The A47H type is suitable for use as a pressure relief device on equipment or pipelines carrying steam, air, water, and other media with operating temperatures ≤350℃.
Connecting flanges are in accordance with JB/T79 standard

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Spring-loaded safety valve with lever handle

Spring-loaded safety valve with lever handle

A47

Spring-loaded safety valve with lever handle

The A47H type is suitable for use as a pressure relief device on equipment or pipelines carrying steam, air, water, and other media with operating temperatures ≤350℃.
Connecting flanges are in accordance with JB/T79 standard

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Spring-loaded full-opening safety valve with wrench

Spring-loaded full-opening safety valve with wrench

A48

Spring-loaded full-opening safety valve with wrench

The A48Y type is suitable for equipment or pipelines carrying steam, air, and other media with operating temperatures ≤350℃.
It serves as a pressure relief device.
The connecting flange conforms to the JB/T79 standard.

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Spring-loaded full-opening safety valve with wrench

Spring-loaded full-opening safety valve with wrench

A48

Spring-loaded full-opening safety valve with wrench

A48 series spring-loaded safety valve with handwheel

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Spring-loaded safety valve with radiator

Spring-loaded safety valve with radiator

A48s

Spring-loaded safety valve with radiator

This valve is suitable for use as a pressure relief device on equipment or pipelines carrying steam and other media with operating temperatures of ≤425℃ for "C" type, ≤510℃ for "I" type, and ≤540℃ for "V" type.
Connecting flanges are in accordance with JB/T79 standard.

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Spring-loaded safety valve with radiator

Spring-loaded safety valve with radiator

A48s

Spring-loaded safety valve with radiator

A48s series spring-loaded safety valve with radiator

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Spring-loaded, pilot-operated high-pressure safety valve

Spring-loaded, pilot-operated high-pressure safety valve

A41

Spring-loaded, pilot-operated high-pressure safety valve

The A41H-160~~320 type is suitable for equipment or pipelines with media such as air, nitrogen-hydrogen mixtures, and water at operating temperatures ≤200℃.
The A41Y-160~~320P/R type is suitable for equipment or pipelines with corrosive gases or liquid media at operating temperatures ≤200℃, acting as an overpressure protection device.
Connecting flanges are in accordance with JB/T2769 standard.

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Spring-loaded fully open high-pressure safety valve

Spring-loaded fully open high-pressure safety valve

A42

Spring-loaded fully open high-pressure safety valve

The A42Y-160~320 model is suitable for equipment or pipelines with media such as air, nitrogen-hydrogen mixtures, etc., operating at temperatures ≤200℃.
The A42Y-160~320P/R model is suitable for equipment or pipelines with corrosive media operating at temperatures ≤200℃, serving as a pressure relief device.
Connecting flanges are in accordance with JB/T 2769 standard.

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Pound-class spring-loaded safety valve

Pound-class spring-loaded safety valve

ZFWA42

Pound-class spring-loaded safety valve

Safety valves are used on pressure vessels such as boilers and pressure containers as overpressure protection devices. When the pressure of the medium inside the protected equipment rises abnormally and exceeds the specified value, the valve automatically opens and then fully opens to prevent the pressure from continuing to rise; when the pressure drops to the specified value, the valve automatically closes to ensure the normal operation of the equipment. With the arrival of the replacement cycle for imported equipment safety valves in China and China's accession to the WTO, based on ISO4126 "General Requirements for Safety Valves", API526 "Steel Flanged Safety Relief Valves", ASME/ANSIB16.5a "Pipe Flanges and Flanged Fittings", and other standards, and drawing on the experience of domestic and foreign manufacturers of similar products, this factory has compiled this catalog based on the data from the past 10 years of production of American standard safety valves for users and agents to refer to when selecting products.

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Pound-class spring-loaded safety valve

Pound-class spring-loaded safety valve

ZFA44

Pound-class spring-loaded safety valve

Safety valves are used on pressure vessels such as boilers and pressure containers as overpressure protection devices. When the pressure of the medium inside the protected equipment rises abnormally and exceeds the specified value, the valve automatically opens and then fully opens to prevent the pressure from continuing to rise; when the pressure drops to the specified value, the valve automatically closes to ensure the normal operation of the equipment. With the arrival of the replacement cycle for imported equipment safety valves in China and China's accession to the WTO, based on ISO4126 "General Requirements for Safety Valves", API526 "Steel Flanged Safety Relief Valves", ASME/ANSIB16.5a "Pipe Flanges and Flanged Fittings", and other standards, and drawing on the experience of domestic and foreign manufacturers of similar products, this factory has compiled this catalog based on the data from the past 10 years of production of American standard safety valves for users and agents to refer to when selecting products.

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Pound-class spring-loaded safety valve

Pound-class spring-loaded safety valve

ZFA48

Pound-class spring-loaded safety valve

Safety valves are used on pressure vessels such as boilers and pressure containers as overpressure protection devices. When the pressure of the medium inside the protected equipment rises abnormally and exceeds the specified value, the valve automatically opens and then fully opens to prevent the pressure from continuing to rise; when the pressure drops to the specified value, the valve automatically closes to ensure the normal operation of the equipment. With the arrival of the replacement cycle for imported equipment safety valves in China and China's accession to the WTO, based on ISO4126 "General Requirements for Safety Valves", API526 "Steel Flanged Safety Relief Valves", ASME/ANSIB16.5a "Pipe Flanges and Flanged Fittings", and other standards, and drawing on the experience of domestic and foreign manufacturers of similar products, this factory has compiled this catalog based on the data from the past 10 years of production of American standard safety valves for users and agents to refer to when selecting products.

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