Valve to choose varieties tiandun strong performance spring diaphragm valve

I. Product Details Product Model: Y42X Product Name: spring diaphragm valve valve structural features and usefulness of this series are direct-acting valve spring valve film. Mainly by adjusting the spring, diaphragm, piston, valve seats, valve and other parts. Downstream pressure sensing diaphragm use direct drive valve, control valve opening of the complete vacuum regulator function. This product is in city buildings, high-rise buildings in hot and cold water supply system, can replace conventional zoning pipes, saving equipment. Also available in the usual hot and cold water distribution network, from the vacuum regulator role. This product regulator, the regulator steady action for piping water and non-corrosive liquid medium. Second, the main technical parameters and performance indicators Nominal pressure (Mpa) 1.0 1.6 2.5 Shell test pressure (Mpa) * 1.5 2.4 3.75 Sealing test pressure (Mpa) 1.0 1.6 2.5 maximum inlet pressure (Mpa) 1.0 1.6 2.5 outlet pressure range (Mpa ) 0.2-0.8 0.2-1.0 0.4-1.6 pressure characteristic deviation (Mpa) △ P2P GB12244-1989 flow characteristic deviation (Mpa) P2G GB12244-1989 leakage 0 Operating temperature 0 ℃ -80 ℃ three main parts and materials Part Name Parts Materials Body Bonnet seat bottom WCB 2Cr13 valve stem 2Cr13 2Cr13 liner 2Cr13 / 25 (chrome plated) Piston 2Cr13 O-ring seals nitrile rubber Nitrile rubber diaphragm is sandwiched fabric nitrile rubber adjustable spring 60Si2Mn Fourth, the valve flow coefficient (Cv) DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 500 Cv 1 2.5 4 6.5 9 16 25 36 64 100 140 250 400 570 780 1020 1500 five dimensions (PN1.0-2.5) nominal diameter DN Dimensions LH Hl 15 160 265 100 20 160 265 100 25 180 285 110 32 200 285 110 40 220 320 120 50 250 320 120 65 280 335 140 80 310 425 165 100 350 445 185 125 400 590 225,150,450,625,260 200,500,680,280,250 650,855,335,300,800 9,353,853,508,501,015,430 4,009,001,095,455,450,900 1165 5,005,009,501,205,525 related valve product line: Yk43X / F / Y type Pilot gas valve piston Y43H / Y-type piston type steam valve spring diaphragm valve Y42X YGa43H / Y high sensitivity large flow of steam valve Y14H / Y-type direct-acting valve Y44H corrugated bellows pipe valve Yt11H increased high-sensitivity film type valve Y13H / thread high sensitivity steam valve YG43H / Y-type high-sensitivity internal steam valve Y43X fixed ratio Y threaded piston steam valve YG13H / Y type reducing valve Y45H / Y-64.Y45H / Y-100 Leveraged steam valve (200P) type water valve YD43H oversized pilot valve diaphragm high sensitivity mine Y42AX special valve manifolds YZ11X pressure reducing valve (water industrial pipe. Compressed air only)