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Location:PRODUCTS >> Safety valve >> Spring-wide safety valve
Spring-wide safety valve
Model: A28H-16
Nominal diameter: DN15 ~ 80mm
nominal pressure: PN1.6 ~ 10.0MPa
Operating temperature: ≤200 ℃
body material: steel, forged steel, stainless steel
for the media: air, steam, water, nitrogen and hydrogen mixture gas and other
applications: used in chemical, petrochemical, oil, paper, mining, electricity, gas, food, pharmaceutical, water supply and drainage, municipal, mechanical equipment, electronics industry, urban construction and other fields

Product Overview:
       A28H, A28Y spring-loaded safety valve for a variety of light and heavy industry and building pipelines. Safety valves are widely used in: chemical, petrochemical, petroleum, paper, mining, electricity, liquefied petroleum gas, food, pharmaceuticals, water supply and drainage, municipal services, machinery and equipment support, electronics industry, urban construction and other fields. A28H, A28Y spring all-purpose safety valve for operating temperature ≤ 200 ℃ air, steam, water, nitrogen and hydrogen mixture and other media equipment or piping, A28Y-P / 10R8 for operating temperature ≤ 200 ℃ corrosive Medium equipment or piping, as overpressure protection device.


product name A28H, A28Y spring full safety valve
Product number A28H, A28Y
Nominal diameter DN15-80mm
Pressure range 1.6MPa-10.0MPa
Body material Cast steel, forged steel, stainless steel


The main parts and materials:
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NO. Part Name A28H material A28Y-P material A28Y-R8 material
1 Body HT200 ZG1Cr18Ni9Ti CF8M
2 Seat 35 ZG1Cr18Ni9Ti CF8M
3 Adjustment ring 2Cr13 1Cr18Ni9Ti 316
4 Disc 2Cr13 1Cr18Ni9Ti 316
5 spring 50CrVA 50CrVA coated fluoroplastic 50CrVA coated fluoroplastic
6 Valve stem 2Cr13 2Cr13 316
7 Adjust the screw 45 2Cr13 316
8 Protective cover ZG200-400 ZG200-400 CF8M
Sealing surface material Surfacing D507 Surfacing Co-based cemented carbide


The previous:Parallel safety valve
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