Automatic Recirculation Control Valve

In order to continue to strengthen our API 602 Forged Gate Valve, High Performance Butterfly Valve, Quick Closing Swing Check Valve and deliver more sophisticated features and performance, we are harnessing some of the latest technological improvements. We warmly welcome small business companions from all walks of lifestyle, hope to establish friendly and cooperative business make contact with with you and attain a win-win objective. Looking back on the past and looking forward to the future, we will continue to introduce new innovations with strict requirements. Our guideline is to make good use of the complementarities. Technical and quality inspectors conduct random inspections regularly to ensure that customers receive qualified products.

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 uphold an honest and responsible attitude, optimize product structure, strictly control production and supply links, and provide agents and consumers with better quality and reliable Automatic Recirculation Control Valve. Since its establishment, our company has grasped the pulse of the market with a steady and pragmatic style, and has won the trust and support of customers with high-quality products and excellent services. Let's open a new chapter of mutual benefit and double win.