Supply Y43H stainless steel steam valve steam valve door manufacturer Shanghai wholesale products

This series belongs to the pilot valve piston valve. From the main valve and pilot valve composed of two parts. Main valve consists of a valve seat, the main valve plate, piston, springs and other parts. Pilot valve consists of a valve seat, valve, diaphragm, spring, adjusting spring and other parts. Set by adjusting the spring pressure regulating outlet pressure, the use of a diaphragm sensor outlet pressure changes, driven by the pilot valve opening and closing the main valve piston adjusting throttle over the size of the flow area of ??the site to achieve vacuum regulator function. This product is mainly used for steam pipe, from the vacuum regulator role. Two, Y43H valve main technical parameters and performance indicators: Nominal pressure (Mpa) 1.6 2.5 4.0 6.4 10.0 16.0 Shell test pressure (Mpa) * 2.4 3.75 6.0 9.6 15.0 24 Sealing test pressure (Mpa) 1.6 2.5 4.0 6.4 10.0 16.0 The maximum inlet pressure (Mpa) 1.6 2.5 4.0 6.4 10.0 16.0 outlet pressure range (Mpa) 0.1-1.0 0.1-1.6 0.1-2.5 0.5-3.5 0.5-3.5 0.5-4.5 Pressure Characteristics deviation (Mpa) △ P2P GB12246-1989 flow characteristic deviation (Mpa) P2G GB12246-1989 minimum differential pressure (Mpa) 0.15 0.15 0.2 0.4 0.8 1.0 leakage GB12245-1989 *: shell test does not include the diaphragm, cover three, Y4Y43H valve main parts material: Part name Part Materials Body Bonnet WCB seat bottom Cylinder valve disc 2Cr13 2Cr13 / 25 (hard chrome plated) Piston 2Cr13 / copper alloy lead alloy cast iron piston ring seat pilot rod 2Cr13 1Cr18Ni9Ti main valve spring diaphragm valve main spring guide 50CrVA 50CrVA adjusting spring 60Si2Mn four, Y43H 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 78010201500