Supply WJ41H forged steel bellows valve welded bellows valve manufacturer wholesale prices

Second, Shanghai high electric pneumatic valve plug WJ41H bellows valves - Product description: Bellows valve stem bellows and packing double seal structure to ensure no leakage at the valve stem seals, especially for flammable, explosive, toxic and piping precious media. Bellows seal design is reasonable, fatigue, long service life. Third, the Shanghai high electric pneumatic valve plug WJ41H bellows valves - use and bellows valves for nominal pressure PN1.6 ~ 16MPa, petroleum, chemical, pharmaceutical, fertilizer, power industry operating temperature -29 ~ 350 ℃ of other workers the status of the pipeline, cut off or connected piping media. Fourth, the Shanghai high electric pneumatic valve plug WJ41H bellows valve Features 1, bellows seal valve, the key components of metal bellows, the lower end of the stem assembly automatic roll welding, automatic roll welding the upper end of the connecting plate, in a fluid medium forming a metal barrier and the atmosphere, ensure stem zero leakage. 2, the valve flap design tapered sealing surface and the dielectric into streamlined, better sealing performance and longer service life. 3, dual seal design (bellow + packing) if bellows failure, stem packing will prevent leakage and comply with international seal standard. 4, valve cover comes with grease fittings, may direct the stem, nut and sleeve for lubrication, unlike traditional only lubricate threads. Fifth, the Shanghai high electric pneumatic valve plug WJ41H bellows valves - Technical data Nominal pressure (MPa) Shell test pressure (MPa) Sealing test pressure (MPa) Temperature (℃) using media 1.6 2.4 1.76 ≤350 ℃ water, steam, oil and other 2.5 4.0 6.0 4.4 6.4 3.75 2.75 9.6 7.04 Shanghai Electric pneumatic valve WZ41H bellows valves - Main parts and materials No. Name Material 1 Body WCB WC1, WC6, WC9, C5 CF8, CF8M, CF3, CF3M 2 valve plate 25, 1Cr13,2Cr13 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 20Cr1Mo1V, 25Cr2MoV 3 stem 25,1Cr13,2Cr13 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 20Cr1Mo1V, 25Cr2MoV 4 bellows assembly 1Cr18Ni9Ti, 304,316,304L, 316L 5 bracket WCB, WC1, WC6, WC9, C5 CF8, CF8M , CF3, CF3M, 6 gasket flexible graphite + stainless steel Flexible graphite + stainless steel, PTFE 7 bonnet WCB WC1, WC6, WC9, C5 CF8, CF8M, CF3, CF3M 8 hex nut 0Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 35CrMoV, 25Cr2MoV 9 stud 0Cr18Ni9Ti, 0Cr18Ni12Mo2Ti 35CrMoV, 25Cr2MoV 10 11 flexible graphite packing gland WCB WC1, WC6, WC9, C5 CF8, CF8M, CF3, CF3M 12 13 copper alloy stem nut hand wheel electric pneumatic valve WCB QT400-18 Shanghai WZ41H bellows valve - Main external and connecting dimensions Model WZ41-16 pressure rating PN16 caliber 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 L 108 117 127 140 165 178 190 203 229 254 267 292 330 356 381 H 200 210 250 260 290 370 398 440 490 530 580 670 760 850 950 W 120 140 140 180 200 220 260 280 300 340 400 450 450 500 500 Model WZ41-25 pressure rating PN25 caliber 1,520,253,240,506,580,100 125 150,200,250,300,350 L 140 152 165 178 190 216 241 283 305 381 403 419 457 502 762 H 200 210 250 260 290 370 398 440 490 530 580 670 760 850 980 W 120 140 140 180 200 220 260 280 300 340 400 450 450 500 500 note : The above dimensions are for reference only and subject to change without notice. Our details please contact us. 021-66358043 5,681,359 Sales Tel: 021-66358043 Fax: 021-56813595