Spring fully open and closed safety valve
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Location：Products >> Safety valve >> Spring fully open and closed safety valve
Model: A42F-25
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
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
Product details
Product Overview:
A42F spring fully enclosed closed 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. A42F spring fully enclosed closed safety valve for operating temperature ≤ 300 ℃ air, petroleum gas, liquid and other media equipment and piping. For working temperature ≤ 200 ℃ corrosive media equipment and piping, as overpressure protection device.
| product name | A42F spring fully enclosed closed safety valve |
| Product number | A42F |
| Nominal diameter | DN20-400 |
| Pressure range | 1.6MPa-10.0MPa |
| Body material | Cast steel, forged steel, stainless steel |
The main parts and materials:
| NO. | Part Name | A42Y-C / KA42Y-C material | A42Y-P / KA42Y-P material | A42Y-R material | DA42Y-P material |
| 1 | Seat | 2Cr13 / 1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | ZG1Cr18Ni9Ti |
| 2 | Body | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | LCB / ZG1Cr18Ni9Ti |
| 3 | Adjustment ring | 2Cr13 / 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 4 | Backlash plate | 2Cr13 / 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 5 | Disc | 2Cr13 / 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 6 | Guide sleeve | 2Cr13 / 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 7 | cap | ZG230-450 | ZG230-450 | ZG230-450 | ZG1Cr18Ni9Ti |
| 8 | spring | 50CrVA | 50CrVA coated fluoroplastic | 50CrVA coated fluoroplastic | 50CrVA |
| 9 | Valve stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 10 | Adjust the screw | 45 | 2Cr13 | 2Cr13 | 2Cr13 |
| 11 | Bonnet | ZG200-400 | ZG200-400 | ZG200-400 | ZG230-450 |
| 12 | Sealing surface material | Surfacing Co-based cemented carbide | |||
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