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Pumping check valve

Valve quick-closing hydraulic control check valve, H741 hydraulic control check valve model: STH741 connection form: flange product material: carbon steel, stainless steel nominal diameter: 50~1000mm adaptive medium: water, steam pressure environment: 0.6-10Mpa quick-closing hydraulic control check valve, H741 extraction check valve, quick-closing reverse check valve, quick-closing valve application this valve is suitable for steam turbine extraction pipeline system and water supply and return heat system in thermal power plant of power industry, or and other industrial systems requiring rapid shutdown. It is to prevent the pressure in the steam turbine from suddenly decreasing when the steam turbine unit suddenly shuts down the load, and the steam in the extraction pipe and each heater flowing back into the steam turbine, causing the steam turbine blades rotating at a high speed of more than 3000 revolutions per minute to suddenly reverse the operation, thus causing the vicious accident of breaking the steam turbine blades and destroying the steam turbine generator, and preventing the water hammer accident caused by the leakage of the heater system pipeline. In the event of an accident, the valve can be quickly closed within 0.5 seconds, which is a quick-closing valve to protect the turbine generator from accidents. [Characteristics of extraction steam check valve] STH741 hydraulic control check valve is a new product developed by our company after years of market research and development. After many improvements after the finalization of a gas-hydraulic dynamic control check valve, the control components are all German Festo products, reliable quality, long service life. Its biggest feature is that it can quickly close and protect its main equipment within 0.5 seconds when an accident occurs. It is a special valve for protecting steam turbine units in thermal power plants. The steam extraction check valve is mainly composed of valves and pneumatic control system. The piston rod of the hydraulic cylinder is reset by a spring, and at the same time drives the valve to achieve rapid closure. The opening of the valve mainly depends on the force of the medium and the cylinder.

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Keywords: Valve

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Detailed introduction

Pumping check valve
Valve Quick Close Hydraulic Control Check Valve, H741 Hydraulic Control Check Valve
Model: STH741
Connection form: flange
Product material: carbon steel, stainless steel
Nominal diameter: 50~1000mm
Adaptation medium: water, steam
Pressure environment: 0.6-10Mpa
 
Quick close hydraulic control check valve, H741 extraction check valve, quick close reverse check valve, quick close valve
 
Use
 
This valve is suitable for steam turbine extraction pipeline system and water supply and heat recovery system of thermal power plant in power industry, or other industrial systems requiring quick closure. It is
 
Prevent the pressure in the steam turbine from suddenly decreasing when the steam turbine unit suddenly shuts down the load, and the steam in the extraction pipe and the heaters will flow back into the steam turbine, causing the 3000 per minute.
 
The turbine blades rotating at multiple revolutions and high speed suddenly reverse the operation, resulting in a vicious accident of breaking the turbine blades and destroying the turbine generator, and preventing the heater.
 
Water hammer accident occurs due to leakage of system pipeline and water enters into turbine from steam extraction pipeline. In the event of an accident, the valve can be closed quickly within 0.5 seconds to protect the turbine.
 
The quick-closing valve of the generator prevents accidents.
 
Features of extraction steam check valve]
STH741 hydraulic control check valve is a new product developed by our company after years of market research and development. A kind of gas-hydraulic dynamic control after many improvements
 
Check valves, control components all use German Festo products, reliable quality, long service life. Its biggest feature is that it can quickly close within 0.5 seconds when an accident occurs.
 
Closed and protect its main equipment, is a special valve for the protection of steam turbine units in thermal power plants.
The steam extraction check valve is mainly composed of valves and pneumatic control system. The piston rod of the hydraulic cylinder is reset by the spring, and at the same time, the valve is driven to close quickly.
 
The opening mainly depends on the force of the medium and the cylinder.
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