Proportional Water Pressure Relief Valve / Stainless Steel Pressure Release Valve

Proportional Water Pressure Relief Valve / Stainless Steel Pressure Release Valve

Water Pressure Relief Valve Introduction

The valves limits the flow rate in the pipeline to a preset rate, regardless of upstream pressure variations.

The valves is controlled by pilot valves, which takes use of integrated orifice plate to detect flow rate

represented by differential pressure, and the differential pressure is used to control the pilot valves to

implement flow rate control.

Water Pressure Relief Valve Main characteristics:

• Diaphragm: rubber+reinforced nylon

• Spring: stainless steel

• Screws: stainless steel

• Connecting: flanged ends

• Pressure loss < 0.10 bar (completely open)

• Pressure loss < 0.40 bar (with orifice)

• Pilots: Bronze

• Excess flow pilot: type three-ways differential pressure, spring adjustable on the spot,

material: bronze, in combination with a calibrated orifice disk

(made of stainless steel or plastic) for the differential pressure measurement,

Diaphragm type adjustable pressure reducing/sustaining valves is installed in feeding/draining water

system in high building to reduce the inlet pressure required pressure.

The valves ensure outlet pressure stay in the setting valves stably on its own energy,namely the outlet pressure does not change owing to the inlet pressure's and flow's change.

There is self-cleaning filtering mesh installed at the valves control system's inlet not to let the great specific gravity and large diameter particle flow in to the system and ensure the system is unimpeded.The valves acts quickly and has a long life.

Size from DN40 to DN600

Hydraulic valve for controling pressure and flow rate

(with an excess flow pilot and a pressure regulator pilot)

Main characteristics:

• Standard: EN ISO 9635-5:2014 and EN 14267:2004

• Body & bonnet: ductile iron, coated Epoxy 250 μm

• Diaphragm: rubber+reinforced nylon

• Spring: stainless steel

• Screws: stainless steel

• Connecting: flanged ends

• Pressure loss < 0.10 bar (completely open)

• Pressure loss < 0.40 bar (with orifice)

• Pilots: Bronze

• Excess flow pilot: type three-ways differential pressure, spring adjustable on the spot,

material: bronze, in combination with a calibrated orifice disk

(made of stainless steel or plastic) for the differential pressure measurement,

comprising the connecting to the hydraulic valve by PEHD pipes

(DN6-8-12mm according to the DN of the valve)

• Pressure regulator pilot: three-ways,

material: bronze, spring adjustable on the spot,

comprising the connecting to the hydraulic valve by PEHD pipes

(DN6-8-12mm according to the DN of the valve)

Medium: Water

Main Technical Feature
Nominal Pressure					1.0MPA	1.6MPA	2.5MPA
Test pressure of the shell					1.5MPA	2.4MPA	3.75MPA
Sealed test pressure					1.1MPA	1.76MPA	2.75MPA
Suitable temperature					≤80℃
Suitable medium					water

Shanghai KangQuan Valve Co. Ltd. is a specialized valves manufacture, which has 2,500 tons of 

valves output capacity annually. We pay much attention to the quality so our products are superior in 

quality compared with those of other manufacturers. After years of research and development, we have

accumulated a wealth of information and experience in this field. We enjoy a high reputation in dealing 

with both domestic and overseas trading.

Shanghai KangQuan Valve Co. Ltd.  covers an area of  15000 square meters. Our products line includes

various kinds of gate valves, globe valves, ball valves, check valves, cock valves, butterfly valves of , etc., 

up to the international advanced standards of ANSI, API, JIS, DIN, BS and so on . Materials mainly include

carbon steel ,stainless steel ,ductile iron and so on .with hand wheel worm-gear actuator and pneumatic

and electric actuator to be selected ,widely used in the industries of petrochemical, natural gas, metallurgy, 

electric power , pharmaceutical , construction, etc..

With highly qualified professionals and first class service, Shanghai KangQuan Valve Co. Ltd. has

established a highly respected enterprise which has been relied on for years. And we will continuously 

offer customers the most accurate and high quality delivery service possible.

Excellent quality assurance is our sales purpose, 
Competitive price is our sales policy, 
On time product delivery and responsive service is our standard.

Shanghai KangQuan Valve Co. Ltd. hopes to work together with you for a better future. Let’s work 

together building a mutually beneficial relationship that will last for years.