Heavy-Duty Knife Gate Valve for Water / Slurry / Pulp Related Industries

We continue to introduce and absorb domestic and foreign advanced technology and efficient management models, so that our pressure seal gate valve 2500lb, flexible wedge gate valve, gate valve 150LB is continuously optimized. Through continuous innovation and improvement of the quality assurance system, we can meet different product design needs and provide customers with high-quality services. With a team of experienced and knowledgeable personnel, our market covers both in domestic and foreign countries. In the market, the competitive characteristics that an enterprise must possess for survival or becoming a competitor. Looking forward to the future, our company will continue to strengthen scientific and standardized quality management as the guide to promote product development and quality to a higher level.

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 are committed to making every Heavy-Duty Knife Gate Valve for Water / Slurry / Pulp Related Industries a high-quality product, so that we attach great importance to technological progress and development. We precipitate corporate culture with rigorous and realistic principles. We will continue to try the best to offer you good quality products and the best service.