Zdm Automatic Return Three Way Valve

To be an excellent supplier of Y Type Globe Valve, Electric Actuator Gate Valve With By-pass, cast steel floating ball valve is our development goal. We will cherish every opportunity to work with you and hope to create a bright future with you with full enthusiasm and sincere service. If you have any inquiry, please do not hesitate to contact us. All merchandise are manufactured with advanced equipment and strict QC procedures in purchase to assure high-quality. We make a genuine attempt to standardize the service business environment, enrich service content, increase service methods, and improve service quality to gain trade advantages. Over the past years, our company has developed into an outstanding representative of the industry through honest operation and scientific planning.

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.

Sticking for the principle of 'Super Quality, Satisfactory service', We have been striving for being a superb small business partner of you for Zdm Automatic Return Three Way Valve. We promise to abide by all laws and regulations, and be responsible for our words and deeds, fulfill our duties and strive for performance and achievements. 'Good quality, customer satisfaction' is the eternal goal of our company. Our company will take the market demand as the guidance, innovate constantly, and wholeheartedly provide customers with reliable quality products and perfect after-sales service.