Dn50 to Dn600 Flange Connection Lifting Check Valve

We are committed to providing more competitive customized solutions and products for DIN High Pressure Globe Valve Straight, A105 Bolted Bonnet Forged ANSI gate valve, API603 gate valve to global users, and go hand in hand with our partners to seek common development. If you are interested within our products and solutions, you should come to feel absolutely free to ship us your inquiry. We have complete production facilities, advanced and exquisite manufacturing process, scientific and standard management models, and high-quality staff, laying a solid foundation for supply of better products and services to customers. Warmly welcome new and old customers for business negotiation and cooperation, and jointly create a bright prospect!

Minimum flow circulation valve is the key supporting equipment of power plant’s boiler feedwater pump.

Boiler water from the feedwater pump will be pressurized up to 20-30Mpa or above in the deaerator then sent to the high pressure heater and eventally into the boiler. A certain minimum flow quantity of the feedwater pump should be ensured to take away the heat generated by its operation so as to avoid overheating and damage of vanes due to cavitation. Boiler feedwater flow is small during the startup and shutdown process while the water demand decreases in condition of breakdown. In order to ensure the normal operation of the pump, a recirculation system should be mounted in the pump outlet to carry a portion of the feedwater back to the deaerator from the pump.

Technical Specification of Pressure Reducing Control Valves

Valve Type: Globe type control valve

Valve Size:1 inch to 12 inch

Pressure: 150Lb to 4500LB

Flange Connection: 150LB to 2500LB according to ASME B 16.50

Butt Welding Connection: 150LB TO 4500LB according to ASME B 16.25

Design according to ASME B16.34

Operation: electric or pneumatic

Our Advantages:

1.Structure: Circulatory convection, multi-stage pressure reducing mechanism, avoid cavitation efficiently, prolong service life.

2. Replaceable Trim: All the trim can be quickly removed and replaced, easy to maintain with less cost

3. Packing: High-quality stem packing ensures zero leak without frequent replacement

4. Well Performance: Scientific construction, high-performance materials with exquisite workmanship enable both the plug and cage to have excellent anti-blocking and anti-scrach performance.

5. Matched Material: Appropritely matched plug and cage materials provide an excellent resistance for abrasion and scraching.

6. Leakage Class: Zero leakage, long-service life and low breakdown rate ensure a safe and reliable operation.

We are committed to becoming the leader in this industry, insisting on selling Dn50 to Dn600 Flange Connection Lifting Check Valve at the most competitive prices, providing customers with diversified services, and striving to fully meet customer requirements. We glance ahead on your pay a visit to and developing trustworthy and long-term standing relationship. Our products are widely sold to all over the world.