Customization: | Available |
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Media: | Water |
Standard: | API 526 |
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Pilot operated safety valve, newly structured--is mainly applied to such trades as petroleum & natural gas, chemistry, electric, metallurg & burning gas. It is the best super-pressure protecting equipment on pressure equipment, container or pipeline. It is mainly characteized by shifting direct function of spring to indirect function of quide valve. What's more, main valve, applying for sleeve piston & double sealed seat, is characterized by high precision of action, good recycling function fast turning back to seat, ability to high pressure leaking, long working time and security, together with read-justment on line, automatic turning back to saet after leaking again and again, tight closure,operating and maintaining convenience.
Standards Compliance:
Design and Manufacture: API RP 520
Face to Face(end to end): API 526
Test and Inspection: API 527
Main property and specifiecation | ||||||
Normal Pressure | PN | 150 | 300 | 600 | 900 | 1,500 |
Body strangth | Ps(MPa) | 3.0 | 7.5 | 15 | 22.5 | 37.5 |
Set pressure | Pk(MPa) | 0.1-2 | 1.6-5 | 3.2-10 | 8-15 | 10-25 |
Seal pressure | Pm | 90% Pk | ||||
Reseation pressure | Ph | 90% Pk | ||||
Relieving pressure | Pp | 1.1 Pk | ||||
Llift | H(mm) | 1/ d0 4 |
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Appropriate temperature | 250 | |||||
Appropriate medium | Air,oil,Steam,Water,Corrosive medium |
Code of throat diameter | |||
Code | Diameter | Code | Diameter |
D | 10 | L | 50 |
E | 13 | M | 55 |
F | 16 | N | 60 |
G | 20.5 | P | 72 |
H | 26 | Q | 96 |
J | 33 | R | 115 |
K | 40 | T | 148 |
Main Dimension | |||||||||||||
Size | Orifice | Inlet Lb | Outlet Lb | Dimension | Size | Orifice | Inlet Lb | Outlet Lb | Dimension | ||||
L | L1 | C | L | L1 | C | ||||||||
12 | D.E.F | 150 | 150 | 115 | 105 | 106 | 23 | G.H.J | 150 | 150 | 124 | 130 | 457 |
300 | 150 | 115 | 105 | 106 | 300 | 150 | 124 | 130 | 457 | ||||
600 | 150 | 115 | 105 | 106 | 600 | 150 | 124 | 130 | 457 | ||||
900 | 300 | 121 | 125 | 508 | 900 | 300 | 171 | 167 | 559 | ||||
1,500 | 300 | 121 | 125 | 508 | 1,500 | 300 | 171 | 167 | 559 | ||||
2,500 | 300 | 121 | 125 | 508 | 2,500 | 300 | 171 | 178 | 584 | ||||
11/ 2 | D.E.F | 150 | 150 | 121 | 124 | 432 | 34 | J.K.L | 150 | 150 | 162 | 156 | 483 |
300 | 150 | 121 | 124 | 432 | 300 | 150 | 162 | 156 | 483 | ||||
600 | 150 | 121 | 124 | 432 | 600 | 150 | 162 | 162 | 483 | ||||
900 | 300 | 140 | 149 | 533 | 900 | 300 | 181 | 190 | 610 | ||||
1,500 | 300 | 140 | 149 | 533 | 1,500 | 300 | 181 | 190 | 610 | ||||
2,500 | 300 | 140 | 149 | 533 | |||||||||
11/ 3 | G.H | 150 | 130 | 124 | 130 | 457 | 46 | L.M.N.P | 150 | 150 | 229 | 181 | 559 |
300 | 130 | 124 | 130 | 457 | 300 | 150 | 229 | 181 | 559 | ||||
600 | 130 | 124 | 130 | 457 | 600 | 150 | 229 | 181 | 559 | ||||
900 | 162 | 171 | 162 | 559 | 900 | 300 | 233 | 249 | 711 | ||||
1,500 | 162 | 171 | 162 | 559 | 1,500 | 300 | 233 | 249 | 711 | ||||
2,500 | 162 | 171 | 162 | 559 | 2,500 | 600 | 264 | 249 | 711 | ||||
68 | Q.R | 150 | 150 | 240 | 240 | 635 | 810 | T | 150 | 150 | 279 | 276 | 711 |
300 | 150 | 240 | 240 | 635 | 300 | 150 | 279 | 276 | 711 | ||||
600 | 150 | 240 | 240 | 635 | 600 | 150 | 279 | 297 | 737 |