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Safety pressure relief/pressure maintaining valve is a diaphragm type 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 both a pressure relief valve and a pressure maintaining valve. When used as a safety pressure relief valve, it releases the high pressure in the system pipeline that exceeds the set valve setting pressure value in front of the valve to prevent high pressure or sudden pressure in the pipeline from damaging the pipeline and equipment in front of the valve; when used as a pressure maintaining valve, it can maintain the water supply pressure upstream of the main valve at a certain set value to give priority to ensuring water use in the area upstream of the main valve.
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Tik TokProduct Parameters
Product Features
With self-cleaning function
Our company's valve body is installed with a built-in filter screen, which has a filtering function. The valve is free from cleaning.
Long service life
The valve body structure of our company is a double-chamber structure, which avoids the impact of high-pressure water and sand, stones and other substances in the water flow on the diaphragm. The diaphragm material contains a nylon reinforced fiber layer, resulting in a long service life.
Stable product performance
Our company's products use high-quality pilot valves. The valve body is of spherical and Y-shaped structure. The flow channel design is reasonable, and it is not easy to generate harmful flow states such as turbulent flow and eddy current, reducing the risk of cavitation damage.
Small flow loss
Our company's products are designed with full bore, with strong flow capacity and small water flow loss.
Product Advantages
Orifice design
The internal orifice design. The orifice connecting the control chamber of the lower chamber of the main valve and the outlet after the valve can make the valve respond more gently, maintain pressure stability, and avoid pipeline vibration and noise.
Unattended operation
The product can operate automatically in pipeline control without the drive of external power sources, saving energy and truly realizing unattended operation.
Self-cleaning design
The main valve adopts a double-chamber structure to avoid the impact of high-pressure water and sand, stones, etc. in the water flow on the diaphragm. The service life of the diaphragm can reach 1 million times.
Easy maintenance
The diaphragm has the characteristics of being able to be assembled and disassembled as a whole, which is convenient for maintenance. As a soft piston, the diaphragm has the advantages of no jamming, sensitive action, and precise control.
Reasonable flow channel design
The valve body has a spherical and Y-shaped structure with full bore design. It has strong flow capacity and small water flow loss. The flow channel design is reasonable and is not prone to generate harmful flow states such as turbulence and eddy current, reducing cavitation damage.
Product Parameters
production line
Packaging and transportation
Application scenario
Fire protection system- Water system
- Irrigation system
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