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.

Другие товары поставщика

	Stainless Steel Gate Valve	Categories: Gate Valve, Gate Valve By Material Tag: OS&Y Valve Description ZECO Valve supplies china stainless steel gate valves in the ve...
	Hydraulic Non-Slam Check Valve	Basic Information of Hydraulic Non-Slam Check Valve This valve prevents backflow of media and reduces water hammer to achieve the safe and quiet ef...
	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...
	Backflow Preventers	Basic informationof the big size gate valve This valve is used in the pipeline as a cut-off valve. Features Principle The big sizeresilient gate va...
	Resilient Seated Gate Valve	Features of resilient seal gate valve Full diameter flat - bottom runner, no debris pooling; Fully covered EPDM disc, no corrosion; Movabl...

Похожие товары

	Dry Ash Gate Valve	Продавец: China Valve Industry Co., Ltd.	The dry ash gate valve is designed for both inlet and outlet pipelines. It features...
	China factory High temperature double head bolt 2""-8UN Steam Turbine RSV N for power station	Продавец: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD	"China factory High temperature double head bolt 2""-8UN Steam Turbine RSV N for power stationOur...
	Male Thread Nickel Plated Brass Butterfly Ball Valve	Продавец: Zhejiang Huibo Valve Technology Co., Ltd.	Male Thread Nickel Plated Brass Butterfly Ball Valve Material: Brass Body, Brass Bonnet, brass ba...
	4800030000 For daewoo,evobus,mercedes-benz,paccar foot brake valve	Продавец: Zhuji Oubote Auto Parts Co., Ltd.	4800030000 foot brake valve are attached to the brake pedal. This isthe valve that actually start...
	Aluminum Gas Valve	Продавец: Dong Guan ABYDA Gas Valve Co., Ltd	Product Specification:1. Raw Material: Al Alloy + solid brass + Mild steel;2. Applicable for LPG,...