0.5 seconds fast closing welded suction check valve

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

Classification

Pumping check valve

Keywords: Valve

Detailed introduction

0.5 seconds fast closing welded suction check valve

Product Name: 0.5 second Quick Close Welding Air Extraction Check Valve

Model: ST57H1-16C/P

Connection form: Welding

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 turbine during sudden load rejection of the steam turbine unit, and the backflow of steam from the extraction pipes and heaters into the turbine, resulting in a positive rate of 3000 per minute

The turbine blades that rotate at high speed and multiple rotations suddenly rotate in reverse, causing a vicious accident of breaking the turbine blades and damaging the turbine generator, and preventing the heater from being damaged

The leakage of the system pipeline caused water to enter the turbine through the extraction pipeline, resulting in a water hammer accident. In the event of an accident, the valve can be quickly closed within 0.5 seconds to protect the steam turbine

Quick closing valve for preventing accidents in generators.

[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 dynamic control that has been finalized after multiple improvements

The check valve and control components are all made of German Festol products, with reliable quality and long service life. Its characteristic is that it can quickly close within 0.5 seconds of an accident occurring

The closed valve is a specialized valve used in thermal power plants to protect the main equipment of the steam turbine unit.

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 quickly close

Opening mainly relies on the force of the medium and cylinder