8615824687445
sale@gneetube.com
enLanguage
Search
Products
Home / Products / Check Valve / Details
Forged Piston Check Valves
video
Forged Piston Check Valves

Forged Piston Check Valves

Forged piston check valves have become key equipment in the energy and chemical industries due to their high reliability and ability to withstand extreme working conditions. However, they are relatively expensive and need to be selected based on the medium characteristics and system pressure.
Send Inquiry
Chat Now

Forged Piston Check Valves Description

 

Forged piston check valve is an automatic valve formed by the forging process. It relies on the medium's own flow to open and close. It is specially used for one-way flow control under high pressure, high temperature and harsh working conditions. It can quickly block the medium's backflow and protect the safety of pipelines and equipment.

Core structure and design features

Main structure:

Forged steel valve body: Made of high-strength forged steel such as A105 and F11, the pressure rating reaches Class 1500 (about 25 MPa), suitable for high-temperature steam (≤425℃).

Piston valve disc: The valve disc is movably connected to the rocker, and the piston is pushed up and down by the medium pressure. When closed, it fits tightly with the inclined valve seat. The sealing surface is welded with cobalt-based hard alloy, which is wear-resistant and corrosion-resistant.

Auxiliary device:

Damping hammer: Balance the valve disc dynamic torque, reduce the closing impact, and prevent the "water hammer" effect.
‌Spring return cylinder‌: Pneumatic actuator (0.45~0.8 MPa air source) drives the valve to close quickly (closing time ≤ 0.5 seconds) and supports redundant sealing design‌.

 

Forged Piston Check Valves Specification

 

Size 1/2"-2" or DN15-DN50
Pressure Class150-3000LB or PN16-PN160 or 10K-40K
Material A105, F5, F6, F11, F22, F51, F304, F316, F304L, F316L, LF2, Alloy Steel etc.
Design & Manufacture Std. API 602,BS 5352,ASME B16.34
Face to Face Std. ASME B16.10 ,EN 558, DIN3202
End Connection Std. ASME B16.5, DIN2543 ,ASME B16.25 ,ASME B16.11 ,ANSI B1.20.1
Test Standard API598

 

 
Forged Piston Check Valves
 
Forged Piston Check Valves
Forged Piston Check Valves
Forged Piston Check Valves

Advantages:

Fast response: The spring return mechanism ensures instantaneous closure in an accident state to protect key equipment such as turbines and pumps.
Streamlined flow channel: Low resistance coefficient (about 0.05), and the flow capacity is 30% higher than that of ordinary check valves.

 

Applications

Thermal power generation: High-temperature steam backflow protection (≤425℃) in the steam extraction system of the steam turbine.
Petrochemical: One-way control of liquid ammonia and corrosive medium pipelines in refining units.
Heating network: Safe isolation and backflow prevention of high-pressure steam pipelines.

 

Hot Tags: forged piston check valves, China forged piston check valves manufacturers, suppliers, factory, steel check valve, check valve noise reduction, flanged duckbill check valve, Duckbill Check Valve, check valve for offshore platforms, stainless steel double check valve

Send Inquiry