Manual / MOV / Aov / Hov / Electrohydraulic Cast Steel Wafer Butterfly Valve

Over the years, we have always adhered to a firm belief and committed to bringing assured flanged forged cast steel gate valve, Trunnion Mounted Ball Valve, butt weld globe valve to consumers. Since the establishment of our company, we have been highly recommended in the same industry for our innovative technology, unique design and pursuit of new product development. We offer diversified products and excellent service to our customers, and insist on the enterprise tenet of "Higher, Newer, Stronger".

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 pursue the administration tenet of 'Quality is exceptional, Assistance is supreme, Reputation is first', and will sincerely create and share success with all clients for Manual / MOV / Aov / Hov / Electrohydraulic Cast Steel Wafer Butterfly Valve. In accordance with the requirements of internationalization and modernization, our company has initially established an operational mechanism of self-development, self-restraint, self motivation and self-improvement which is compatible with the modern enterprise system. We hope to further expand the domestic and overseas markets, and sincerely hope that friends from all walks of life will support and cooperate, and on the premise of a win-win situation, let us become partners for common development.