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Din standard safety valve specification.
| Type | Nominal Pressure | Body Material | Nominal Diameter | Working Temp. |
| GA901/902/911/912 | PN40/16 | Cast Steel 1.0619+N | 20/32mm-150/250mm | -10~450 deg |
| GA901/911 | PN40/16 | Stainless Steel 1.4408 | 20/32mm-100/150mm | -60~450 deg |
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| DN | 20/32 | 25/40 | 32/50 | 40/65 | 50/80 | 65/100 | 80/125 | 100/150 | 125/200 | 150/250 |
| Throat Diameter do(mm) | 18 | 22 | 29 | 36 | 45 | 58 | 72 | 80 | 100 | 125 |
| Orifice Area Ao(mm) | 254 | 398 | 661 | 1018 | 1590 | 2688 | 4072 | 6362 | 8825 | 12266 |
| Weight(kg) | 8.5 | 10 | 14 | 20 | 28 | 40 | 53 | 80 | 125 | 165 |
Main Connection Dimensions.
| GA901,902,911,912 Type Safety Valve | |||||||||||
| DN*DN1 | 20*32 | 25*40 | 32*50 | 40*65 | 50*80 | 65*100 | 80*125 | 100*150 | 125*200 | 150*250 | |
| D | PN16 | 105 | 115 | 140 | 150 | 165 | 185 | 200 | 220 | 250 | 285 |
| PN40 | 235 | 220 | 300 | ||||||||
| K | PN16 | 75 | 85 | 100 | 110 | 125 | 145 | 160 | 180 | 210 | 240 |
| PN40 | 190 | 220 | 250 | ||||||||
| b | 20 | 20 | 20 | 21 | 22 | 24 | 26 | 28 | 31 | 34 | |
| D1 | PN16 | 140 | 150 | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 405 |
| K1 | 100 | 110 | 125 | 145 | 160 | 180 | 210 | 240 | 295 | 355 | |
| b1 | 19 | 19 | 20 | 20 | 20 | 20 | 22 | 22 | 27 | 29 | |
| L | 85 | 100 | 110 | 115 | 120 | 140 | 160 | 180 | 200 | 225 | |
| L1 | 95 | 105 | 115 | 140 | 150 | 170 | 195 | 220 | 250 | 285 | |
| ≈H | 298 | 311 | 315 | 355 | 405 | 555 | 580 | 690 | 845 | 890 | |
| Vent(with plug) | G3/8" | G1/2" | |||||||||
