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Spring Kaiqi closed high-pressure safety valve

Products > Safety valve > Spring Kaiqi closed high-pressure safety valve

Spring Kaiqi closed high-pressure safety valve

Model: A42Y-40C
Nominal diameter: DN20 ~ 400mm
Nominal: PN1.6 ~ 10.0MPa
Operating temperature: ≤300 ℃
Body material: steel, forged steel, stainless steel
air, LPG and liquid: Medium
Applications : Suitable for chemical, petrochemical, petroleum, papermaking, mining, electricity, Liquefied petroleum gas, food, pharmaceutical, water supply and drainage, municipal, mechanical equipment, electronics, urban construction and other fields
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Product Overview:
A42Y spring fully enclosed closed high-pressure 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. A42Y spring fully enclosed closed high-pressure safety valve for operating temperature ≤ 300 ℃ air, petroleum gas, liquid and other media equipment and piping. A42Y-P-type and A42Y-R-type for operating temperature ≤ 200 ℃ corrosive media equipment and piping, as over-voltage protection device.


product nameA42Y spring fully enclosed closed high-pressure safety valve
Product numberA42Y
Nominal diameterDN20-400
Pressure range1.6MPa-10.0MPa
Body materialCast steel, forged steel, stainless steel


The main parts and materials:
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NO.Part NameA42Y-C / KA42Y-C materialA42Y-P / KA42Y-P materialA42Y-R materialDA42Y-P material
1Seat2Cr13 / 1Cr18Ni9TiZG1Cr18Ni9TiZG1Cr18Ni12Mo2TiZG1Cr18Ni9Ti
2BodyWCBZG1Cr18Ni9TiZG1Cr18Ni12Mo2TiLCB / ZG1Cr18Ni9Ti
3Adjustment ring2Cr13 / 1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni12Mo2Ti1Cr18Ni9Ti
4Backlash plate2Cr13 / 1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni12Mo2Ti1Cr18Ni9Ti
5Disc2Cr13 / 1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni12Mo2Ti1Cr18Ni9Ti
6Guide sleeve2Cr13 / 1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni12Mo2Ti1Cr18Ni9Ti
7capZG230-450ZG230-450ZG230-450ZG1Cr18Ni9Ti
8spring50CrVA50CrVA coated fluoroplastic50CrVA coated fluoroplastic50CrVA
9Valve stem2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti1Cr18Ni9Ti
10Adjust the screw452Cr132Cr132Cr13
11BonnetZG200-400ZG200-400ZG200-400ZG230-450
12Sealing surface materialSurfacing Co-based cemented carbide