Combined Butterfly-Check Valve
ZECO Valve Group, founded in 1991 with focus on manufacturing china water valve, including control valves, balancing valves, gate valve, butterfly valves, check valves, and air valves. Valve sizing 1/2” to 88”, rating BS 10bar through BS 25bar, served covering buildings & construction, waterworks, fire protection and many other fields. ZECO has excellent product quality and sound managing system.
Basic information of Combined Butterfly-Check Valve
This valve acts as a closed circuit valve and a check valve butterflyto protect the system by avoiding and reducing the backflow of the intermediate fluid in the piping system and causing excessive water hammer.
Features of Combined Butterfly-Check Valve
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.
Principle of Combined Butterfly-Check Valve
This valve is opened by means of a cylinder driven by the hydraulic power pack. The valve 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.
Installation and Commissioning of Combined Butterfly-Check Valve
The pump motor action is controlled by the internal pressure of the accumulator. After the combined butterfly-check valve is put into operation, after a period of time, the oil pressure of the system will decline. When the pressure of hydraulic oil drops to a certain value, it needs to be replenished. Otherwise, the valve will be affected. For specific use, please consult ZECO Valve Group.
Product scope, Standards & Materials of Combined Butterfly-Check Valve
Size Range: 12"~144"Pressure Rating: 10bar ~ 25barFace to Face Dimensions: AMSE B16.10, EN558-1Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2Coating: Fusion Bonded Epoxy Coating Inspection and Test: ISO 5208 / EN 12226-2
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
Globe Valve / Check Valve | ZECO is a professional check valve supplierof globe valve and check valve.Globe valve is a type of forced sealing valve, which can close the valve ... |
 |
Pressure Control Valve | Pressure control valves use the balancing principle of hydraulic pressure and spring force to adjust the pressure of the hydraulic system and contr... |
 |
Gate Valve | ZECO is one of the professional gate valve manufacturers, specializing in the production of wedge gate valve and through conduit gate valve product... |
 |
Flange Globe Valve | Description of Flange Globe Valve: ZECO forged globe valvescan be divided according to the location of the stem thread. Flange globe stop valveste... |
 |
Gate Valve | The resilient seated gate valveof ZECO is widely used and reliable in the water supply and drainage system of water supply company, sewage company,... |
Похожие товары
 |
200WOG Thread Globe Valve | Продавец: Wenzhou Chenyu Valve Co., Ltd | 200WOG Thread Globe Valveis a type of valve designed to regulate or isolate the flow of liquids o... |
 |
Forged Steel Gate Valve | Продавец: Wenzhou Chenyu Valve Co., Ltd | Forged Steel Gate Valveis a robust and high-performance type ofGate Valveprimarily used for relia... |
 |
RV-01A High-Pressure Aluminium for Aquaculture Environmental Protection OEM | Продавец: Greentech International (Zhangqiu) Co., Ltd | RV-01A pressure relief valveAir Blower pressure relief valve is installed on the inlet &outle... |
 |
Pressure Relief Valve/Series Relief Valve | Продавец: Greentech International (Zhangqiu) Co., Ltd | Application:1.Usedinringblowerandsuitablebothpressure/vacuumuse.2.Staticpressuresettingeasilyadju... |
 |
right valves | Продавец: Yuanda Valve Group Co.,Ltd. | right valves Selecting the is essential for the efficiency, safety, and reliability of intel... |
