Detailed Product Description

JLH multifunction cutoff,throttle and check valve is an aggregate of functions borne by traditonal cutoff valve,adjusting valve and check valve.

Function of cutoff valve:when inlet pipeline stops pressure supply or is under heavy repair,it may carry out the function of cutoff to ensure leak-tightness of pressure at the back of valve,by turning valve stem clockwise to push disc closed to valve seat.

Function of throttle valve:to ensure designed flow and pressure at the back of valve, function of flow control, turning valve stem clockwise to reduce flow and pressure, counterclockwise to enlarge flow and pressure,precise adjustment according to scale on valve stem and front and back pressure.

Functions of check valve: in case of temporary stop or pressure pause, to avoid backflow of pressure fluid in pipeline, which may damage the eqipments in pipeline, and to ensure back pressure of valve, the spring of this valve has already pushed disc for close before there is backflow impact formed up at the back of valve, thus to effectively control the water hammer.
function of interchanging between throughway type and angle type installation: to replace throughway installation by angle  type, you need only to remove the connecting bolt between inlet and outlet valve body, and turning inlet valve body by 180 to effect angle type installation.
JLH multifunctional cutoff, throttle and check valves are revolution against traditional pipeline, where cutoff valve, adjusting and check valve should all be mounted. 67% smaller in volume, 62% lighter in weight and 53% economy of cost on average. it is an excellent new product economizing energy, capital and space.