Cast Steel High Pressure Gate Valve with Pressure Seal Bonnet

Through years of unremitting efforts, our ball valve 150LB, cast steel floating ball valve, Floating Type Ball Valve F51 has been praised among peers and users for its superior performance and enjoys a high reputation. Based on the business philosophy of 'quality determines success or failure, technology determines development, and users determine survival', we put the interests of customers at a high level during development, and provide them with professional and thoughtful services anytime, anywhere. In the fierce market competition, we believe that humanized products and services are always the way to win in the market.

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.

Our Cast Steel High Pressure Gate Valve with Pressure Seal Bonnet, at a reasonable price, has an innovative design, delicate quality and convenient function, which is competitive to others. We keep the path of green development and promote the company's product transformation and upgrading. We have been looking for more and more customers to create the glorious future.