Supply 460X relief valve closed Shanghai 460X relief valve closed bolt high quality cheap ..

First, the Shanghai bolt high 460X relief valve closed: Product Name: 460X relief valve closed Model: 460X Product caliber: DN15 ~ DN800 product pressure: 1.6 ~ 6.4Mpa Material: steel, stainless steel, alloys steel, Tel: 021-66358043 QQ 597574072 Shanghai high-valve plug in accordance with production standards: Chinese GB, the Department of Mechanical JB, chemical industry standard HG, German standard DIN, Japanese JIS, JPI, British Standard BS, American standard API, ANSI, production . Body material: copper, cast iron, cast steel, carbon steel, WCB, WC6, WC9,20 #, 25 #, forged steel, A105, F11, F22, stainless steel, 304,304L, 316,316L, chromium molybdenum steel, cold steel, titanium alloy steel. Working pressure 1.0Mpa-50.0Mpa. Working temperature: -196 ℃ -650 ℃. Connection: internal thread, external thread, flange, welding, butt welding, socket welding, card sets, clamp. Operation: manual, pneumatic, hydraulic, electric. Shanghai high-Valve Co., Ltd. bolt has the world's leading production equipment and technical engineers, have the ability to national standards as well as various industry standards for manufacturing quality valves. Second, Shanghai high 460X relief valve closed bolt Products 300X slow closing check valve is a check valve can regulate the opening and closing speed, the pump starts or stops running, and with the field adjustment to the optimum opening or closing speed . It can be used for high-rise buildings, reduce water hammer phenomenon, in order to achieve safe and quiet opening and closing effects. Third, the Shanghai high 460X relief valve closed bolt works: When the valve from the inlet end of the water supply, the water through a microfilter, needle valve, check valve into the main valve control room, and then through the drainage valve downstream. Because the needle valve opening of the valve opening is less than that of the main valve control room faster than water drainage speed, so the control room pressure is reduced, the role of opening the main valve inlet pressure on the lower end of the main valve disc to the downstream water supply. When the pipe to stop water supply, if the downstream water began to reflux, a part of the water through the valve back into the main control room, the one-way valve action, return water can not flow out from the main control room, causing the main control room gradually boost, slowly close the main valve . Fourth, the Shanghai high 460X slow closing check valve plug Applications: 300X slow closing check valve type products are widely used in high-rise buildings, living quarters and other water supply systems and urban water supply project. Structural features 460X slow closing check valve type from the main valve, check valves, needle valves, ball valves, micro-shaped filter and pressure gauge hydraulic control over the system. The use of hydraulic automatic operation, can get the best of the main valve opening or closing speed. Chung hit the water to prevent water production, in order to achieve the effect of slow closing silencer slow closing check valve utilizing hydraulic self-control, no other devices and energy, maintenance is simple, open and close smoothly slow. Standard Specification for Structural length standard: GB / T 12221-2005 connection flange standard: GB / T 9113 Pressure temperature rating: GB / T 12224-2005 Test inspection standards: GB / T 13927-2008 parts and materials and working conditions Part Name Material Valve body, bonnet cast iron, steel, stainless steel seat bronze, stainless steel valve, carbon steel, stainless steel + nitrile rubber stem aluminum bronze, chrome stainless steel diaphragm nitrile rubber diaphragm plate steel, stainless spring steel and the main dimensions Weight Nominal size DN Dimensions (mm) L A1 A H1 HF 20 150 130 325 179 212 116 25 160 130 325 179 212 116 32 180 130 325 179 212 116 40 200 140 335 210 265 168 50 203 140 335 210 265 168 65 216 140,335,215,310,180 80,241,145,345,245 350,210,100,292,155 365,305,460,284,125 330,165,385,365,520 310,150,356,180,410 415,570,370,200,495 205,465,510,840,463 250,622,225,505,560 890,525,300,698,245 400 914 2,856,257,351,150,778,450 9,782,856,257,351,150,778 5,009,784,107,807,501,110 6,906,001,230,456,888,850 1286 785 545 658 1030 625 350 indicate 7,872,755,956,961,090,705: The above dimensions are for reference only factory Details are subject to change without notice, please contact us. 021-66358043 56,813,595.