Explosion-Proof Wave Safety Valve (FA49H) For Avoid Water Hammer

The explosion-proof wave safety valve can eliminate the water shock & prevent water hammer.

Installed in the beginning of the pipeline to prevent water hammer and protect the equipment.

The explosion proof valve is a safety valve which can eliminate the shock wave and can block

the water hammer shock wave, and the product is composed of a plurality of groups of safety

valves, and the function of the safety valve can not be achieved.

The exit of the product is installed in the water supply pipe and the head of civil air defense to

transport medium, to block wave and wave combination, to prevent internal shock wave into the

system engineering facilities, so as to eliminate the destructive shock wave, to protect the system

facilities normal operation and safety protection purpose.

Under normal conditions the valve is normally open, medium normal flow, when the shock wave into

the valve, the main valve valve to overcome the impact of spring strength, rapid closure of the shock

wave in the outer end, just enter the shock wave in the wave valve under the action of the wave

chamber, resolve the destructive force of shock wave, through the barrier and resolve to achieve the significance of protection.

Capacity : 2000 Nm3/hr
Medium: Feed Gas as per below gas composition

Pipe Size : 4”
Flanged connection ratings 150 # WNRF
Operating pressure : 2 barg
operating temp : 60 deg C
Design temp : 90 deg C
Design pressure : 4 barg
Set Pressure 4 barg
Back pressure : N.A
Relieving Temp : 80 deg C
MOC: Carbon Steel

Sizing for PCV failure

Gas property of Methane

PRVS FOR P305A/B
Ø Body Material: Carbon Steel
Ø Trim material: stainless steel
Ø Inlet rating and connection – 2”X150#
Ø Outlet rating and connection – 2”X150#
Ø Orifice area – F
Ø Operating pressure – 10Kg/cm2
Ø Set pressure – 15Kg/cm2
Ø Fluid – LUBE OIL
Ø Temperature: 45oC

Pressure Relief Valve, Body Material: Carbon Steel, Trim material: stainless steel

The valve instantly opens when the pressure in the pipeline exceeds the preset safe level, thus relieving excessive pressure from the pipeline. When the pressure returns to normal, the valve closes slowly, at an adjustable speed. The valves also can be used to sustain upstream pressure to a preset pressure value.

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.