Type 06125, Type 06126

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Type 06125, Type 06126

Safety Valves, angle type, cast steel
type tested, TÜV-SV.577. S/G/L

Standard safety valve metal to metal seated, with lifting device Flanged connection acc. to DIN EN 1092-1 PN40

Part No. 06125.X.0000
open bonnet
Part No. 06126.X.0000
closed bonnet

Available options - on request only:

- Disc with soft sealing
- Extended pressure and temperature ranges


Applications:
Provided as safety device for protection against excessive pressure in pressure vessels. Approved for gases, vapours and fluids.
Working temperatures: -85°C / -121°F (188K) up to +450°C / +842°F (723K)

 		  
Type 06125, Type 06126
 

Materials

DIN EN

ASME/ASTM
1 Body 1.0619 A 216 Grade WCB
2 Disc 1.4122 no reference
3 Stem 1.4021 A 276 Grade 420
4 Spring 1.1200 A 227
5 Bonnet 1.0619 A 216 Grade WCB
6 Lifting device 0.7040 A 536-87 Gr. 60-40-18
Essential: Valves are delivered at a set pressure,
therefore when ordering please confirm set
pressure, medium and temperature.
Standard marking acc. to Pressure Equipment
Directive 97/23/EG (PED).
 
Type 06125, Type 06126
 

 

Type 06125, 06126 Technical data
Nominal size DN 15 20 25 32 40 50 65 80 100 125
Orifice d0 12 18 18 18 23 29 37 46 60 74
Dimension code .X. 0150 0200 0250 0320 0400 0500 0650 0800 1000 1250
Set pressure saturated steam bar 0.2-32 0.2-32 0.2-32 0.2-32 0.2-32 0.2-32 0.2-32 0.2-32 0.2-30 0.2-24
Set pressure air and fluids bar 0.2-40 0.2-40 0.2-40 0.2-40 0.2-40 0.2-40 0.2-40 0.2-35 0.2-30 0.2-32
Flange diameter D 95 105 115 140 150 165 185 200 235 270
Height Type 06125 H 310 315 320 325 335 360 470 525 605 740
Height Type 06126 H 305 310 315 320 330 355 475 530 590 745
Length L1 90 95 100 105 115 125 145 155 175 200
Length L2 90 95 100 105 115 125 145 155 175 200
Weight ca. kg 5.0 6.0 6.0 8.0 9.0 12.0 15.0 20.0 33.0 48.0
Coeff. of discharge gases, vapours αw 0.62 0.29 0.38 0.38 0.38 0.38 0.38 0.38 0.38 0.38
Coeff. of discharge fluids αw 0.48 0.19 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
Dimensions in mm.



 

Discharge capacities
Calculation of mass flow acc. to AD2000-Merkblatt A2
Medium:
A = Saturated steam in kg/h
B = Air in m³/h at 0°C and 1013.25 mbar
C = Water in kg/h at 20°C
The capacity indicated below is for a fully opened valve.
d0 - orifice
A0 - flow area
 

 

Set
pressure
in bar (ü)		 DN 15 20 25 & 32 40 50
d0 (mm) 12 18 18 23 29
A0 (mm²) 113.1 254.5 254.5 415.5 660.6
Medium A B C A B C A B C A B C A B C
0.2   - - - - - - 34 39 1770 55 63 2890 88 101 4600
0.5   55 67 2140 30 35 1900 63 74 2510 102 120 4090 163 191 6510
1.0   78 93 2900 67 80 2580 101 121 3390 165 197 5540 263 313 8810
2.0   125 151 4100 129 156 3650 170 206 4800 278 336 7840 442 534 12500
3.0   168 206 5020 177 217 4470 232 284 5880 379 463 9600 603 737 15300
4.0   210 258 5790 221 272 5160 290 356 6790 473 582 11100 752 925 17600
5.0   251 311 6480 265 327 5770 347 429 7590 566 700 12400 900 1113 19700
6.0   293 363 7090 308 382 6320 404 501 8310 659 818 13600 1048 1301 21600
7.0   333 416 7660 350 438 6820 459 574 8980 750 936 14700 1192 1489 23300
8.0   374 468 8190 394 493 7300 516 646 9600 842 1055 15700 1339 1677 24900
9.0   415 521 8690 437 548 7740 572 718 10200 934 1173 16600 1485 1865 26400
10.0   456 573 9160 480 604 8160 629 791 10700 1026 1291 17500 1632 2053 27900
12.0   538 679 10000 566 714 8930 741 936 11800 1210 1528 19200 1924 2429 30500
16.0   699 889 11600 736 935 10300 964 1225 13600 1574 2001 22200 2503 3181 35200
20.0   863 1099 13000 908 1156 11500 1190 1515 15200 1942 2474 24800 3088 3933 39400
24.0   1024 1309 14200 1078 1377 12600 1412 1805 16600 2306 2947 27100 3665 4685 43200
28.0   1189 1519 15300 1251 1599 13600 1639 2095 18000 2676 3420 29300 4254 5437 46600
32.0   1354 1729 16400 1425 1820 14600 1867 2384 19200 3049 3893 31300 4847 6189 49800
36.0   - 1939 17400 - 2041 15500 - 2674 20400 - 4366 33200 - 6941 52900
40.0   - 2149 18300 - 2262 16300 - 2964 21500 - 4839 35000 - 7693 55700

 

Set
pressure
in bar (ü)		 DN 65 80 100 125
d0 (mm) 37 46 60 74
A0 (mm²) 1075.3 1662.1 2827.8 4300.7
Medium A B C A B C A B C A B C
0.2   142 165 7500 220 255 11600 375 431 19700 570 660 30000
0.5   265 311 10600 410 481 16400 697 819 27800 1060 1245 42400
1.0   428 510 14300 661 788 22200 1125 1341 37700 1711 2039 57400
2.0   720 870 20300 1113 1344 31300 1893 2287 53300 2880 3478 81100
3.0   981 1199 24800 1517 1854 38400 2581 3153 65300 3926 4797 99300
4.0   1224 1505 28700 1892 2327 44300 3218 3958 75400 4895 6021 115000
5.0   1465 1811 32100 2265 2800 49600 3853 4763 84300 5861 7245 128000
6.0   1706 2117 35100 2636 3273 54300 4485 5568 92400 6823 8469 140000
7.0   1940 2423 37900 2999 3746 58600 5102 6373 99800 7761 9694 152000
8.0   2179 2729 40600 3368 4219 62700 5730 7177 107000 8717 10918 162000
9.0   2418 3035 43000 3737 4692 66500 6358 7982 113000 9671 12142 172000
10.0   2656 3342 45300 4105 5165 70100 6984 8787 119000 10624 13366 181000
12.0   3132 3954 49700 4842 6111 76800 8237 10397 131000 12530 15815 199000
16.0   4074 5178 57400 6297 8003 88700 10714 13616 151000 16296 20711 229000
20.0   5027 6402 64100 7770 9895 99100 13218 16835 169000 20107 25608 257000
24.0   5967 7626 70200 9222 11788 109000

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