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ANSI GB Standard Cast Steel Stainless Steel Dual Plate Wafer Type Check Valve
Product introduction:
Check valve also known as automatic safety mechanism called a is
used to allow fluids and gases to flow in one direction while
preventing reverse flow. These valves seal tightly to stop leaks
and guarantee that gases or liquids are flowing in the proper
direction and prevents major harm to pumps and compressors by
regulating the flow of liquids. It is also known as a one-way
valve. Fluids enter the valve at the inlet under pressure, where
they push the disc away from the valve’s seat and out the outlet.
The disc automatically returns to its seat to stop the flow if
there is a pressure drop. It is robust, long-lasting, and
constructed of high-quality materials. To stop backflow, it is
typically put in pipelines. The flow can freely move one direction
through a check valve, but if the flow changes, the valve will
close to safeguard the piping, other valves, pumps, etc. Water
hammer may happen if the flow reverses and there is no check valve
in place. A pipeline or other components can easily be damaged by
water hammer, which frequently occurs with great power.
Dual-plate wafer type check valve consists of valve body, valve
disc, valve rod, and spring parts etc. The check valve adopts wafer
type, butterfly plate is two semicircular, and adopts spring forced
reset, sealing surface can be body hard-facing wear-resistant
material or rubber lining, wide range of use, reliable sealing.
The disc shutoff stroke is very short and under the effect of the
spring, the valve can close quickly and prevent the big noise from
water-hammering. It is widely used in water supply and drainage
system, high-rise building and industrial park, because of its
surface distance is short than other check valve, so it is more
convenient for the confined space installation.
Product technical paramters:
Nominal Diameter DN (mm) | 50~600 | |
Nominal Pressure PN (MPa) | 1.6 | |
Test Pressure (MPa) | Strength (water) | 2.4 |
Enclose (Water) | 1.76 | |
Main Components | Valve body | Ductile iron, WCB, Stainless steel |
Disc | Ductile iron, WCB, Stainless steel | |
Seat | NBR | |
Spring | Stainless steel | |
Axle | Stainless steel | |
Working temperature | ≤80℃ | |
Medium suitable | Water and oil | |
Connection | Wafer type |
Product in Industries:
• Water control Industries
• Oil and gas industries
Product Applications:
• Check valves are used in gas pipelines to stop the harmful and
equipment-damaging backflow of gases, such as natural gas or other
gases.
• In order to prevent the backflow of polluted water into the pure
water supply, check valves are utilised in water treatment
facilities.
• To regulate fluid flow and stop backflow, check valves are
utilised in medical equipment like infusion pumps and respirators.
• Check valves are employed in fire protection systems to stop
water or other firefighting materials from flowing backwards, which
can reduce the system’s efficacy.
Product advantages:
• Low maintenance
• Cost-effective
• Energy efficient
• Reduced noise
• Space-saving
• Improved system efficiency
• Prevents water hammer
• Prevents backflow
• Easy installation