GAA27H type are used for the equipment and pipeline of water,air,steam etc.Medium what the working temperature are less than 200°C.A27Y type are used for the equipment and pipelines of the quality with corrode are less than 200°C.Take for extra pressure devices.
GAA27W-10T Spring Loaded Low Lift Safety Valve Main Parts Material.
| Parts Name | Material | Parts Name | Material |
| Bonnet,Cap | KT30-6 | Spring | 60SiMn |
| Body,Disc,Stem | ZHMn58-2-2 | Lever | A3 or KT30-6 |
| Adjusting Bolt,Locking Nut | Brass |
GAA27W-10T Spring Loaded Low Lift Safety Valve Main Dimension.
| DN | R | do | S | H= | L1 | L | G | Weight Kg. |
| 15 | 1/2" | 16 | 30 | 176 | 54 | 35 | 1/2" | 1 |
| 20 | 3/4" | 20 | 34 | 189 | 59 | 37 | 3/4" | 1.2 |
| 25 | 1" | 25 | 40 | 221 | 70 | 42 | 1" | 1.7 |
| 32 | 1 1/4" | 31 | 48 | 247 | 83 | 45 | 1 1/4" | 2.1 |
| 40 | 1 1/2" | 37 | 56 | 269 | 89 | 55 | 1 1/2" | 3 |
| 50 | 2" | 48 | 66 | 305 | 104 | 67 | 2" | 4.7 |
| 65 | 2 1/2" | 62 | 86 | 362 | 116 | 76 | 2 1/2" | 9 |
| 80 | 3" | 73 | 98 | 383 | 125 | 84 | 3" | 11.5 |
