Duplex Safety Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
A37H-16C/25/40
A38Y-16C/25/40
Applications
Duplex spring type safety valve (with wrench) is applied to equipments and pipes of air, steam, water and other media that working temperature is ≤ 350 ℃, used as the overpressure protection device. Duplex spring type safety valve (with wrench) consists of a Y-connector installed by two same specifications of A47H, A48Y-type safety valve, the nominal diameter of duplex spring type safety valve refers to the Y-connector inlet diameter.
Dimensions & constructral diagram
A37H-16C/25/40(pic1)
A37H-16C/25/40(pic2)
A38Y-16C/25/40
The corresponding matched diameter
| A37 type nominal diameter DN(mm) | 50 | 80 | 100 | 125 | 150 | |||
| the corresponding A47H type diameter DN | 32 | 65 | 80 | 100 | 125 | |||
| A43 type nominal diameter DN(mm) | 50 | 80 | 100 | 125 | 150 | |||
| the corresponding A47H type nominal diameter DN | 32 | 50 | 80 | 100 | 125 | |||
| A38 type nominal diameter DN(mm) | 50 | 80 | 100 | 150 | ||||
| the corresponding A48H type nominal diameter DN | 32 | 50 | 65 | 100 | ||||
External and connection dimensions(mm)
| nominal diameter DN(mm) | Dimensions(mm) | ||||
| L | L1 | B | DN' | do | |
| A 37 type | |||||
| 50 | 115 | 225 | 165 | 32 | 2×25 |
| 80 | 140 | 310 | 205 | 65 | 2×50 |
| 100 | 160 | 355 | 255 | 80 | 2×65 |
| 125 | 170 | 410 | 260 | 100 | 2×80 |
| 150 | 190 | 430 | 275 | 125 | 2×100 |
| nominal diameter DN(mm) | Dimensions(mm) | ||||
| L | L1 | B | DN' | do | |
| A 43 type | |||||
| 50 | 115 | 225 | 165 | 32 | 2×25 |
| 80 | 135 | 295 | 190 | 50 | 2×40 |
| 100 | 160 | 352 | 255 | 80 | 2×65 |
| 125 | 170 | 410 | 260 | 100 | 2×80 |
| 150 | 190 | 430 | 275 | 125 | 2×100 |
| nominal diameter DN(mm) | Dimensions(mm) | ||||
| L | L1 | B | DN' | do | |
| A 38 type | |||||
| 50 | 115 | 225 | 165 | 40 | 2×20 |
| 80 | 135 | 295 | 190 | 65 | 2×32 |
| 100 | 160 | 365 | 265 | 80 | 2×40 |
| 150 | 195 | 415 | 275 | 125 | 2×65 |
