Hot Selling Cast Iron Pressure Seal Gate Valve

With advanced technology, production equipment, and complete supporting production lines, we have become a bright pearl in the industry of flange forged steel gate valve, pressure seal gate valve, Alloy steel gate valve and have won the trust and praise of new and old customers. We promote industrial systematization, product diversification, and provide better and more comprehensive service to customers. We're prepared to present you with the most effective ideas over the designs of the orders in a qualified way for those who need. To this end, our company will be realistic as a necessary subject, and pay for it.

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.

In the fiercely competitive market, we uphold the service tenet of 'unity, pragmatism, innovation, and trustworthiness'. With professional service, rigorous management, advanced equipment technology and years of hard work by all employees, we have established a good image in the industry of Hot Selling Cast Iron Pressure Seal Gate Valve. Customer satisfaction is the goal and direction of our work. Over the years, continuous feedback from customers has prompted us to continuously develop and improve the comprehensive performance of our existing products. Welcome your visiting and any your inquires, sincerely hope we can have chance to cooperate with you and we can build up long well business relationship with you.