CHECK VALVE

Product Origin: China
Brand Name: LONZ
Price Terms: FOB, CFR
Payment Terms: L/C, T/T
Supply Ability: 500pcs/month
Minimum Order: 5pcs
Certification(s): ISO9001
Detailed Product Description
Check valves are mechanical valves that permit gases and liquids to flow in only
one direction, preventing process flow from reversing. They are classified as one-way
directional valves. Fluid flow in the desired direction opens the valve, while
backflow closes the valve. The mechanics of check valve operation are not complicated.
Most check valves contain a ball that sits freely above the seat, which
has only one through hole. The ball has a slightly larger diameter than that
of the through hole. When the pressure behind the seat exceeds that above the ball,
liquid is allowed to flow through the valve. Once the pressure above the ball
exceeds the pressure below the seat, the ball returns to rest in the seat, forming
a seal that prevents backflow. We manufacture check valves in conformity with
ASME B16.34 standards. All valves are tested according to API 589 requirements.
The marking is as per MSS SP-25 standards.