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

	Globe Valve / Check Valve	ZECO is a professional manufacturer of globe valve and check valve.Globe valve is a type of forced sealing valve, which can close the valve without...
	Cryogenic Gate Valve	Description of Cryogenic Gate Valve: The main material of ZECO cryogenic gate valve is selected. Considering from the metallographic aspect, in ad...
	Manual Ball Valve	As one of the china ball valve manufacturers, ZECO always adhere to exceed customer expectations,to provide customers with more international stand...
	New Type Wafer Concentric Butterfly Valve	Basic information New Type Wafer Concentric Butterfly Valve ofwafer butterfly valve manufacturers can be used as adjusting and intercepting equipme...
	Stainless Steel Butterfly Valve	Description of Stainless Steel Butterfly Valve: ZECO stainless steel butterfly valve is a kind of butterfly valve with high performance and long se...

供应产品

Same products

	Class 300 Valve	卖方: GangYe Group Co.,Ltd.	Class 300 valves have a pressure rating of 300 pounds per square inch (psi) or 20.7 bar, allowing...
	Class 3000 Industrial Valve	卖方: GangYe Group Co.,Ltd.	Wafer Body, Full Port Design, Flanged End Class 3000 Ball Valve. A ball valve class 3000pressure-...
	Class 2500 Industrial Valve	卖方: GangYe Group Co.,Ltd.	Class 2500 valves can be used for both on-off and throttling applications. The specific valve typ...
	Class 150 Valve	卖方: GangYe Group Co.,Ltd.	globe valve class 150is a pressure rating designation defined by standards organizations, such as...
	Class 1500 Industrial Valve	卖方: GangYe Group Co.,Ltd.	A class 1500 valve made of 316 stainless steel, for instance, can sustain 248 bar of pressure at ...