Most process valves require an actuator or manual lever to open and close; therefore, the size of pipe determines the size of valve. However, a check valve relies on flow, pressure, temperature, etc. of the media in the application to operate. A fully open and closed check valve avoids the fluttering or rattling associated with premature valve failure. With proper spring selection, a spring assisted check valve can help avoid fluttering or rattling and allows the valve to operate silently eliminating the hammer noise, vibration and pipe collapse associated hydraulic shock also known as water hammer.
展开▼
