Combined Butterfly-Check Valve
Basic informationThis valve acts as a closed circuit valve and a check valve to protect the system by avoiding and reducing the backflow of the intermediate fluid in the piping system and causing excessive water hammer.Features1. Valve opens automatically when the pump starts and closes automatically before the pump is stopped;2. In case of power failure at the pumping station, the valve closes like a hydraulic damped check valve;3. Both opening and closing times are adjustable;4. The hydraulic power pack is also equipped with a handpump for emergency opening of the valve.PrincipleThis combined butterfly check valveis opened by means of a cylinder driven by the hydraulic power pack. Thevalve is only set to open at a constant speed, and the opening time can be adjusted by adjusting the knob of the valve opening in the hydraulic oil station. Before the 75 ° fast closing, time is 5 ~ 12 seconds (adjustable site); after the 15° slow closing, time is 20 ~ 40 seconds (adjustable site). The realization of closing the valve fast and slow is mainly regulated by controlling the amount of oil drainage through adjusting the two-way oil drainage regulating device. The regulating part is in the part protruding from the upper part of the oil cylinder. If the adjustment is needed, the part protruding from the upper part of the oil cylinder should be removed.
Other supplier products
|
|
Big Size Resilient Gate Valve |
ZECO is one of the leading check valve manufacturers china, China. ZECO check valveprovides non-slam closure, have a low head loss and close drip-t... |
|
|
Gate Valve |
ZECO is one of the professionalgate valve manufacturing companies, specializing in the production of wedge gate valve and through conduit gate valv... |
|
|
Ductile Iron Gate Valve |
Features of ductile iron sluice valve
Visual valve switch easily;
Quick opening and closing, light torque;
Brass nut wear-resistant, long switch... |
|
|
Strainer & Dirt Separator |
Strainers, dirt separatorsand backflow preventers are designed to prevent impurities from entering the specified pipe section. Comparing these thre... |
|
|
Resilient Gate Valve for Underground 1025 |
Basic information
This underground gate valveis used as a two-way closed circuit device.
Featuresof Resilient Gate Valve for Underground
Principleo... |
供应产品
Same products
