Zdm Automatic Recirculation Pump Protection Three Way Valve

Our company continues to build a strong brand in the Full bore ball valve, Blind Flange, BALL VALVE field with excellent product quality, honest business philosophy and perfect after-sales service. According to different customer needs, we provide you a variety of styles of products. We have consistently maintained high-quality and efficient services, which have been widely recognized by the industry, and we are willing to cooperate with you to achieve a win-win situation. Our company delivers goods in time. We promise to reply the quality problems as soon as possible so as to provide customers with high-quality service at the first time. Our company has an experienced, skilled after-sales service team, tracking service all over the country.

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 will constantly satisfy our respected customers with our good excellent, superior value and superior assistance due to we're additional experienced and far more hard-working and do it in cost-effective way for Zdm Automatic Recirculation Pump Protection Three Way Valve. No matter in the product design and production or in the process of sales and service, we always adhere to customer-oriented and meet the requirements of customers with novel and unique products and high-quality and efficient service. We wish to work along with you and request common enhancement.