Supply DN40300mm adjustable pressure valve

ZYF-16 Adjustable pressure control valve, no external energy, rely on the media itself pressure changes are transferred automatically adjust the flow rate changes automatically eliminate the remaining pressure head and pressure pipe network fluctuations, constant pressure difference users, help stabilize system operation. 2 Features The valves are double flap structure, the stem unbalanced force small, compact, for heating (air conditioning) water series, the constant pressure by the control system, and has the following characteristics: 1, the constant is the control system pressure; 2, support the controlled self-regulation within the system; 3, absorb pressure fluctuations outside the network; 4, the use of advanced stepless voltage structure, control pressure adjustable ratio up to 25: 1; 5, with automatic elimination jam function; 6, flange dimensions conform to GB4216.2 gray cast iron flange dimensions. Adjustable pressure control valve technical parameters: 1, nominal pressure: 1.6MPa; 2, medium temperature: 0-150 ℃; 3, working pressure range: 0.02-0.3MPa; 4, control pressure setpoint: 0.02 MPa; control pressure adjustable range 0.02-0.3MPa; 5, connecting pipe length: 1.6m; 6, impulse pipe connection end Size: 1/2 "; pipe thread; adjustable pressure control valve to use: 1, the medium flow direction should be consistent with the direction of the arrow body; 2, adjustable pressure control valve should be installed in the return pipe, pressure pipe connected to the valve guide, and the other end is connected to the water supply pipe connecting pipe, it is recommended pressure guide Water pipe side installation 1/2 "; ball to start to eliminate clogging; 3, in the water supply pipe connecting pipe should be installed before the filter, to avoid poor water quality caused by the loss of automatic adjustment of the valve; 4, water supply and return pipe before the valve pressure gauge should be installed separately, easy to adjust the control pressure; 5, found the system too much traffic or too small, it may cause is debris card pipeline component mounting resistance when the valve plug, may be 1/2 "; valve closed for 3-5 minutes, then if it is less clogged, you can automatically eliminate, as yet not eliminate, will have to open the check valve to eliminate obstruction; 6, the control pressure adjustment method: adjusting the control valve rod counterclockwise, the pressure was observed.