Full open spring safety with radiator whose working temperature is less than 400℃ is used as suppress pressure protecting device for equipments and pipes which transmitting water, nitrogen and hydrogen mixture and other corrosive medium. When the pressure inside pipes exceeds permitted value, Full open spring safety opens automatically to discharge entirely. When the pressure descends to permitted value, the valve close to ensure that equipment run safely. The radiator is used to cooling. Full open spring safety valve is widely used in urban construction, chemical industry, metallurgy, petroleum, pharmacy, etc.
Parameter
Working temperature | ≤400℃ |
Nominal diameter DN(mm) | 20-200 |
Nominal pressure PN(MPa) | 1.6-10MPa |
Materials
Part Name | Materials |
Body | WCB, ZG1Cr18Ni9Ti, ZG1Cr5Mo |
Base | 2Cr13, 1Cr18Ni9Ti |
Adjusting ring | 2Cr13, 1Cr18Ni9Ti |
Disc | 2Cr13, 1Cr18Ni9Ti |
Guide sleeve | 2Cr13, 1Cr18Ni9Ti |
Radiator | ZG230-450 |
Bonnet | ZG230-450 |
Spring | 50CrVA |
Stem | 2Cr13, 1Cr18Ni9Ti |
Stretching screw | 45, 1Cr18Ni9Ti, 2Cr13 |
Cap | ZG200-400 |
Seal face | Cemented carbide |
Dimensions
Nominal Diameter DN(mm) | do | D | K | g | g1 | b | f | f1 | Z-ød | DN’ | D1 | K1 | g3 | g2 | b1 | f’ | f1’ | z1-ød1 | L | L1 | ≈H |
20 | 15 | 105 | 75 | / | 55 | 16 | 2 | / | 4-14 | 25 | 115 | 85 | / | 65 | 16 | 2 | / | 4-14 | 110 | 95 | 518 |
25 | 16 | 115 | 85 | / | 65 | 16 | 2 | / | 4-14 | 32 | 140 | 100 | / | 78 | 18 | 2 | / | 4-18 | 110 | 95 | 518 |
32 | 20 | 140 | 100 | / | 78 | 18 | 2 | / | 4-18 | 40 | 150 | 110 | / | 85 | 18 | 3 | / | 4-18 | 115 | 100 | 518 |
40 | 25 | 150 | 110 | / | 85 | 18 | 3 | / | 4-18 | 50 | 165 | 125 | / | 100 | 20 | 3 | / | 4-18 | 120 | 110 | 579 |
50 | 32 | 165 | 125 | / | 100 | 20 | 3 | / | 4-18 | 65 | 185 | 145 | / | 120 | 20 | 3 | / | 4-18 | 135 | 120 | 639 |
65 | 40 | 185 | 145 | / | 120 | 20 | 3 | / | 4-18 | 80 | 200 | 160 | / | 135 | 20 | 3 | / | 8-18 | 160 | 140 | 671 |
80 | 50 | 200 | 160 | / | 135 | 20 | 3 | / | 8-18 | 100 | 220 | 180 | / | 155 | 22 | 3 | / | 8-18 | 170 | 135 | 676 |
100 | 65 | 220 | 180 | / | 155 | 22 | 3 | / | 8-18 | 125 | 250 | 210 | / | 185 | 22 | 3 | / | 8-18 | 195 | 175 | 787 |
125 | 80 | 250 | 210 | / | 185 | 22 | 3 | / | 8-18 | 150 | 285 | 240 | / | 210 | 24 | 3 | / | 8-23 | 210 | 190 | 977 |
150 | 100 | 285 | 240 | / | 210 | 24 | 3 | / | 8-23 | 175 | 310 | 270 | / | 240 | 26 | 3 | / | 8-23 | 255 | 230 | 1035 |
200 | 125 | 340 | 295 | / | 265 | 26 | 3 | / | 12-23 | 250 | 405 | 355 | / | 320 | 30 | 3 | / | 12-26 | 300 | 260 | 1193 |
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