900lb/1500lb/2500lb Pressure Seal High Pressure Flanged Swing Check Valve

On the basis of continuous improvement of product quality, we promote innovation, vigorously develop new products, and actively strive to provide consumers with better high temperature gate valve, pressure seal bonnet gate valve, Integral forged steel gate valve solutions to meet their needs, so as to achieve a win-win situation between enterprises and users. Under the background of global economic integration and the great development of Multinational Corporation, we also gradually integrate the globalization, and are facing the international competition. We bravely challenge the burden of scientific and technological research and create a better tomorrow! In terms of operations, we always advocate people-based management and insist on talent being the source of business development.

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 thinks what buyers think, the urgency of urgency to act during the interests of a purchaser position of theory, allowing for much better high-quality, reduced processing costs, charges are more reasonable, won the new and outdated consumers the support and affirmation for 900lb/1500lb/2500lb Pressure Seal High Pressure Flanged Swing Check Valve. High production costs but low prices for our long-term cooperation. We will build a bridge of friendship and cooperation with you with higher working standards, so as to achieve a win-win situation with you, and create a better tomorrow.