High Quality Industrial Cast iron Swing check valve with counterweight China factory supplier Manufacturer
What's Swing check valve with counterweight ?
Air cushioned cylinder Cast Iron Swing Check Valve is a type of swing check valve mounted with air cushion cylinder to prevent slam and water hammer.it consists of a valve body,a bonnet,and a disc that is connected to a hinge. The disc swings away from the valve-seat to allow flow in the forward direction,and returns to valve-seat when upstream flow is stopped,to prevent back flow.it allows full,unobstructed flow and automatically closes as pressure decreases.These valves are fully closed when the flow reaches zero and prevent back flow.Turbulence and pressure drop within the valve are very low.The valve is opened by the fluid flow in one direction and closes automatically to prevent flow in the reverse direction.
the valve is made of cast iron,ductile iron, is mainly used for water supply and drainage system, and other industrial sectors of the pipeline outlet to prevent medium countercurrent in low pressure and normal temperature.it could be mounted with closure control devices include Air Cushioned Cylinder, Oil Controlled Cylinder, Bottom Mounted Buffer, Lever & Spring and Lever & Weight.
Main features of Swing check valve with counterweight
Features and benefits of Swing check valve with counterweight
- *Trouble-free operation and easy maitanance
- *Full bore flow area, lower flow resistance.
- *Fitted with cushion cylinder and lever weight, connected with disc by same shaft. The open and close time or speed can be adjusted by regulating valve and slide weight.
- *Sealing performance stable, reliable and wear resistance. Long use life, No vibration, No noise.
Working principal of Swing check valve with counterweight:
- 1. When upstream pipe increase the water pressure, the valve disc will be pressed open.The disc shaft will drive the cylinder piston and the lever and weight up.
- 2. The closing speed of the disc can be adjusted by the regulating valve on the cylinder. Turn the knob of the regulating valve clockwise will increase the damping force of the cylinder and slow down the close speed of the disc; turn the knob of the regulating valve of the cylinder anti-clockwise will speed up the close of the disc. The lock nut clockwise adjustment after the completion of the can lock position at this time.
Technical specifications of Swing check valve with counterweight
Product Show: Swing check valve with counterweight
Application of Swing check valve with counterweight
This kind of Swing check valve with counterweight is widely utilized in pipeline with liquid & other fluids.
- *HVAC/ATC
- *Water supply and treatment
- *Food and Beverage Industry
- *Industrial environmental protection
