[Thin Film Pressure Reducing Valve] [Thin Film Pressure Reducing Valve] [Gas Pressure Reducing Valve] [Lever Pressure Reducing Valve]

Zui big valve wholesale base in Henan area

Steam piston pressure reducing valve

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Overview: This series of pressure reducing valve is a pilot piston type pressure reducing valve. It consists of two parts, the main valve and the pilot valve. The main valve is mainly composed of a valve seat, a main valve disc, a piston, a cylinder sleeve, a spring and the like. The pilot valve is mainly composed of a valve seat, a valve disc, a diaphragm, a spring, an adjustment spring and the like. The outlet pressure is set by adjusting the adjustment spring pressure, and the diaphragm is used to sense the outlet pressure change, and the pilot valve is opened and closed to guide the piston to adjust the flow passage area of ​​the main valve throttle portion to realize the pressure reduction and voltage stabilization function. Main technical parameters and performance indicators : Main parts materials: Nominal pressure (MPa) 1.6 2.5 Shell test pressure (MPa) 2.4 3.75 Seal test pressure (MPa) 1.6 2.5 Zui high inlet pressure (MPa) 1.6 2.5 Export pressure range (MPa) 0.1-1.0 0.1-1.6 Pressure characteristic deviation (MPa) GB12246-1989 Flow characteristic deviation (MPa) GB12246-1989 Zii small differential pressure (MPa) 0.15 0.15 Leakage GB12245-1989 Flow coefficient (Cv): DN 15 20 25 32 40 50 65 80 100 125 150 Cv 1 2.5 4 6.5 9 16 25 36 64 100 140 Part Name Part material Valve body, bonnet, bottom cover WCB Seat, valve disc 2Cr13 Cylinder liner 2Cr13/25 (hard chrome plating) piston 2Cr13/copper alloy Piston ring Alloy cast iron Guide seat, pilot valve stem 2Cr13 Diaphragm 1Cr18Ni9Ti Main valve spring 50CrVA Pilot valve main spring 50CrVA Adjustment spring 60Si2Mn Main dimensions: Nominal pressure Nominal diameter DN (mm) Size (mm) L D D 1 b Z-фd D 3 H 1 H 2 1.6Mpa 25 180 115 85 14 4-18 115 101 315 32 200 135 100 16 4-18 130 107 320 40 220 145 100 16 4-18 145 113 325 50 250 160 125 16 4-18 155 120 335 65 280 180 145 18 4-18 170 140 365 80 310 195 160 20 8-18 200 150 385 100 350 215 180 20 818 200 150 385 125 400 245 210 twenty two 8-18 235 185 425 150 450 280 240 twenty four 8-23 265 210 445 2.5Mpa 25 180 115 85 16 4-14 115 101 315 32 200 135 100 18 4-18 130 107 320 40 220 145 110 18 4-18 145 113 325 50 250 160 125 20 4-18 155 120 335 65 280 180 145 twenty two 8-18 170 140 365 80 310 195 160 twenty two 8-18 200 150 385 100 350 230 190 twenty four 8-23 200 150 385 125 400 270 220 28 8-25 235 185 425 150 450 300 250 30 8-25 265 210 445

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Sharps Container

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