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Quick 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 Applicable medium: water, steam pressure environment: 0.6-10Mpa Quick closing hydraulic control check valve, H741 extraction check valve, quick closing check valve, quick closing valve Purpose: This valve is suitable for the extraction pipeline system and feedwater reheat system of thermal power plants in the power industry, or other industrial systems that require quick closing. It is to prevent the sudden decrease in pressure inside the steam turbine during sudden load rejection of the steam turbine unit, and the backflow of steam from the extraction pipes and heaters into the steam turbine, causing the turbine blades, which are rotating at a high speed of over 3000 revolutions per minute, to suddenly reverse and run, resulting in a malignant accident of breaking the turbine blades and damaging the steam turbine generator. It also prevents the leakage of the heater system pipeline from causing water to enter the steam turbine through the extraction pipes, leading to water hammer accidents. In the event of an accident, the valve can be quickly closed within 0.5 seconds, which is a quick closing valve used to protect the steam turbine generator from accidents. The STH741 hydraulic control check valve is a new product developed by our company after years of market research and development. A gas-liquid control check valve that has undergone multiple improvements and has been finalized. All control components are made from German Festol products, with reliable quality and long service life. Its characteristic is that it can quickly close within 0.5 seconds in the event of an accident, protecting its main equipment. It is a specialized valve for protecting steam turbine units in thermal power plants. The extraction check valve mainly consists of a valve and a pneumatic control system. The piston rod of the hydraulic cylinder is reset by a spring, which drives the valve to close quickly. The opening of the valve mainly relies on the force of the medium and the cylinder.

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Keywords: Valve

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Detailed introduction

Quick pumping check 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

Applicable media: water, steam

Pressure environment: 0.6-10Mpa

Quick closing hydraulic control check valve, H741 extraction check valve, quick closing check valve, quick closing valve

purpose

This valve is suitable for steam turbine extraction pipeline systems and feedwater reheating systems in thermal power plants in the power industry, or other industrial systems that require quick closure. It is to prevent the sudden decrease in pressure inside the steam turbine during sudden load rejection of the steam turbine unit, and the backflow of steam from the extraction pipes and heaters into the steam turbine, causing the turbine blades, which are rotating at a high speed of over 3000 revolutions per minute, to suddenly reverse and run, resulting in a malignant accident of breaking the turbine blades and damaging the steam turbine generator. It also prevents the leakage of the heater system pipeline from causing water to enter the steam turbine through the extraction pipes, leading to water hammer accidents. In the event of an accident, the valve can be quickly closed within 0.5 seconds, which is a quick closing valve used to protect the steam turbine generator from accidents.

[Features of extraction check valve]

The STH741 hydraulic control check valve is a new product developed by our company after years of market research and research. A gas-liquid control check valve that has undergone multiple improvements and has been finalized. All control components are made from German Festol products, with reliable quality and long service life. Its characteristic is that it can quickly close within 0.5 seconds in the event of an accident, protecting its main equipment. It is a specialized valve for protecting steam turbine units in thermal power plants. The extraction check valve mainly consists of a valve and a pneumatic control system. The piston rod of the hydraulic cylinder is reset by a spring, which drives the valve to close quickly. The opening of the valve mainly relies on the force of the medium and the cylinder.

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