Custom processing: Brand: YN Model: A48Y valve opening height: Full lift safety valve structural forms: spring type of connection: flange material: WCB nominal diameter: DN10--600 Medium: steam flow direction: one-way parts and accessories: Accessories pressure environment: atmospheric body structure: [1] A48Y spring high pressure safety valve suitable for working temperature "C-type" ≤425 ℃; "I type" ≤500 ℃; "V-type" ≤500 ℃; the steam and other media equipment or pipeline, as the overpressure protection device. 2 Specifications Product Name Model Nominal Diameter Nominal Temperature design and manufacture the flange connection structure length of the valve inspection and testing A48Y, A48H type, spring safety valve A48Y, A48H type DN10 ~ DN600,1 / 2 "~ 25 "PN1,0 ~ 32MPa, American Standard: 150Lb ~ 2500Lb ≤-196 ℃ ~ 580 ℃ GB / T12243, APl, 520 JB / T79-94, JB / T2769-92, GB / T9113-2000, ANSI Bl6.5a JB / T2203, APl, 526 GB12242, APl, 527 3 main parts material NO Part Name A48Y-C A44Y-C material A44Y-P material A44Y-R material 1 Body WCB ZG1Cr18Ni9Ti CF8M 2 seat adjustment ring 2Cr13 1Cr18Ni9Ti 316 3 ZG2Cr13 ZG1Cr18Ni9Ti 0Cr18Ni12Mo2Ti 4 recoil plate ZG2Cr13 ZG1Cr18Ni9Ti 316 5 valve 2Cr13 1Cr18Ni9Ti 316 6 guide sleeve 2Cr13 1Cr18Ni9Ti 0Cr18Ni12Mo2Ti 7 bonnet ZG230-450 ZG230-450 ZG230-450 8 spring 50CrVA 50CrVA coated plastic 50CrVA fluorine fluorine plastic-coated valve 9 pole 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 10 ZG200-400 ZG200-400 ZG200-400 11 wrench to adjust the screw 45 2Cr13 2Cr13 12 guard ZG200-400 ZG200-400 316 13 sealing surface material surfacing Co group, carbide