DN400 Cl2500 Cast Steel Pressure Seal Bonnet Gate Valve

Our company has been serving every customer in the world with high-quality, high-performance cast steel floating ball valve, A105 Bolted Bonnet Forged ANSI gate valve, High Performance Butterfly Valve, and always insists on satisfying customers with pre-sales consultation, program consultation and after-sales service. We take the market as the guidance, science and technology as the driving force, striving to provide the best products and services to customers. We are pursuing the work policy of "enterprising and realistic, rigorous and united", and continuously develop innovative and meticulous service. Only by daring to be the first and constantly innovating can we create a greater successful market and achieve greater market success. In recent years, enterprises are accelerating the role transformation to international enterprise groups and our company has introduced high-tech and equipment.

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.

Let us produce prosperous future hand in hand for DN400 Cl2500 Cast Steel Pressure Seal Bonnet Gate Valve. We have always maintained a passion for excellence, adhering to the work philosophy of 'technological innovation, integrity and lasting', to provide customers with worry-free, labor-saving, efficient and easy-to-use products. Our company has an experienced service team to provide customers with thoughtful service.