Zhejiang 500X pressure relief valve / pressure valve

 500X pressure relief valve holding pressure Brand: Gold Titanium Valve Model: 500X Nominal Diameter: DN20 ~ DN1000 Nominal pressure: 1.0 ~ 4.0Mpa Suitable medium: water, oil Suitable temperature: 0 ~ 80 ℃ Connection: Flange material : cast iron, cast steel, ductile iron, stainless steel 1, pressure relief valve holding pressure introduction 500X pressure relief valve, pressure valve is mainly used for fire-fighting or other water systems to prevent system overpressure and maintenance of fire-fighting water system pressure. After the fire pump is turned off can also reduce the impact of water hammer. Also used in large-scale water supply systems water hammer elimination device, when the feed line for more than the set pressure relief valve, pressure relief valve timely relief to protect the pipeline safety. Also can hold pressure valve to protect the main valve upstream water pressure. The products use hydraulic control, no other devices and energy, maintenance is simple, a multi-purpose valve. The products are widely used in high-rise buildings, living and other water supply and urban water supply system. 2, pressure relief valve holding pressure relief valve product works done by, when the pilot valve to adjust the pressure relief valve condition, water needle valve, the main valve control room, ball valves A, pressure relief / holding pressure pilot valve, ball valve B to exports, this time, the main valve is turned on, when the inlet pressure exceeds the safety value set by the pilot valve, the pressure relief valve opens automatically to release some water through the valve C, allowing the line drain. When piping to a safe value, pressure relief valve closes automatically, do the relief valve, each valve normally open. Do hold pressure valve, when pilot valve adjustment pressure valve status for as long as the main valve inlet water pressure below the set pressure the pilot valve, pilot valve that is closed and the main valve control room pressure increases, the main valve closed. When the main valve when the upstream pressure exceeds the set pressure of the main valve, the main valve to open, the control room of the water through the drain valve to the outlet, the control room pressure, the main valve to open, start the water supply, namely the protection of the upstream water pressure, so pressure valve , normally closed valve or plugs replaced. 3, the pressure relief valve holding pressure Technical parameters Nominal pressure Mpa Mpa housing experiment seal test pressure Mpa Applicable media Suitable water temperature 1.0 1.5 1.1 0 ~ 80 ℃ 1.6 2.4 1.76 2.5 3.75 2.75 4, holding pressure relief valves connecting dimensions DN 20 25 32 40 50 65 80 100 125 150 200 250 300 350 L 150 160 180 200 210 245 265 290 330 355 505 555 610 650 H1 463 463 463 516 516 520 537 596 653 709 805 855 953 990 H2 557 557 557 610 610,625,642,750,808 8,641,135,118,513,251,385 Zhejiang titanium valves professional production of hydraulic control valves, valve, regulator valve, tube power valve, micro-resistance ease closure check valve, flow control valves, hydraulic automatic valves, intelligent automatic control valve, butterfly valve, mud valve, head-spin ball, and other products, widely used in high-rise buildings, fire, water, power, metallurgy, petrochemical, coal, energy, food, medicine and other water distribution piping system . If you have any questions, please contact us immediately, we will be happy to serve you.