Flange type double chamber pressure relief and pressure maintaining valve (SK730X-98C) DN50-DN600

Product overview:

The safety pressure relief/pressure maintaining valve is a diaphragm hydraulic control valve that uses the pipeline's own hydraulic pressure as the driving source. The main feature of this valve is that it can be used as a pressure relief valve or a pressure maintaining valve. The function of the safety relief valve is to release the high pressure in front of the valve that exceeds the set valve setting pressure value out of the system pipeline to prevent high pressure or sudden pressure in the pipe from damaging the pipeline and equipment in front of the valve; when used as a pressure maintaining valve, it can maintain the upstream of the main valve The water supply pressure is set at a certain value to give priority to the water supply in the upstream area of ​​the main valve.

Product advantages:

• The valve body has a spherical, Y-shaped structure and a full-bore design. It has strong flow capacity, small water flow loss, and reasonable flow channel design. It is not easy to produce harmful flow states such as turbulence and turbulence, and reduces the hazards of cavitation.

• The diaphragm can be assembled and disassembled as a whole, making it easy to maintain. As a soft piston, the diaphragm has the advantages of no jamming, sensitive movement, and precise control.

• The main valve adopts a double-chamber structure to prevent high-pressure water and sand, stones, etc. in the water flow from impacting the diaphragm. The service life of the diaphragm can reach 1 million times.

• The built-in filter in the external pipe is designed to be self-cleaning, and the valve body requires no cleaning and maintenance.

• The product can operate automatically in pipeline control without the need for external power source driving, saving energy and truly being unattended.

• Internal orifice design, the orifice connected to the lower control chamber of the main valve and the rear outlet of the valve can make the valve response smoother, maintain pressure stability, and avoid pipeline vibration and noise.

Parameter standards:

Design standards: CJ/T 219, JB/T 10674, BS EN 558 Series 10

Connection standards:BS EN 1092-2

coating standards:ANSI/AWWA C550

Nominal diameter:DN50-DN300

Nominal pressure: PN10, PN16, PN25

Applicable temperature:0～80℃

Applicable media:water

Applicable fields:Fire protection field