Type 06120, Type 06121

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Type 06120, Type 06121

Safety Valves, angle type, cast iron
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 PN16

Part No. 06120.X.0000
open bonnet
Part No. 06121.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: -10°C / +14°F (263K) up to +200°C / +392°F (473K)
 		  
Type 06120, Type 06121
 

Materials

DIN EN

ASME/ASTM
1 Body 0.6025 A 48-83 Gr. 35B
2 Disc 1.4122 no reference
3 Stem 1.4021 A 276 Grade 420
4 Spring 1.1200 A 227
5 Bonnet 0.7040 A 536-87 Gr. 60-40-18
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 06120, Type 06121
 

 

Type 06120, 06121 Technical data
Nominal size DN 15 20 25 32 40 50 65 80 100
Orifice d0 12 18 18 18 23 29 37 46 60
Dimension code .X. 0150 0200 0250 0320 0400 0500 0650 0800 1000
Set pressure range bar 0.2-16 0.2-16 0.2-16 0.2-16 0.2-16 0.2-16 0.2-16 0.2-16 0.2-16
Flange diameter D 95 105 115 140 150 165 185 200 220
Height Type 06120 H 310 315 320 325 335 360 470 525 605
Height Type 06121 H 305 310 315 320 330 355 475 530 590
Length L1 90 95 100 105 115 125 145 155 175
Length L2 90 95 100 105 115 125 145 155 175
Weight ca. kg 5.0 6.0 6.0 8.0 9.0 12.0 15.0 20.0 33.0
Coeff. of discharge gases, vapours αw 0.62 0.29 0.38 0.38 0.38 0.38 0.38 0.38 0.38
Coeff. of discharge fluids αw 0.48 0.19 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
d0 (mm) 12 18 18 23
A0 (mm²) 113.1 254.5 254.5 415.5
Medium A B C A B C A B C A B C
0.2   - - - - - - 34 39 1770 55 63 2890
0.5   55 67 2140 30 35 1900 63 74 2510 102 120 4090
1.0   78 93 2900 67 80 2580 101 121 3390 165 197 5540
2.0   125 151 4100 129 156 3650 170 206 4800 278 336 7840
3.0   168 206 5020 177 217 4470 232 284 5880 379 463 9600
4.0   210 258 5790 221 272 5160 290 356 6790 473 582 11100
5.0   251 311 6480 265 327 5770 347 429 7590 566 700 12400
6.0   293 363 7090 308 382 6320 404 501 8310 659 818 13600
7.0   333 416 7660 350 438 6820 459 574 8980 750 936 14700
8.0   374 468 8190 394 493 7300 516 646 9600 842 1055 15700
9.0   415 521 8690 437 548 7740 572 718 10200 934 1173 16600
10.0   456 573 9160 480 604 8160 629 791 10700 1026 1291 17500
12.0   538 679 10000 566 714 8930 741 936 11800 1210 1528 19200
14.0   618 784 10800 650 825 9650 852 1081 12700 1391 1764 20700
16.0   699 889 11600 736 935 10300 964 1225 13600 1574 2001 22200

 

Set
pressure
in bar (ü)		 DN 50 65 80 100
d0 (mm) 29 37 46 60
A0 (mm²) 660.6 1075.3 1662.1 2827.8
Medium A B C A B C A B C A B C
0.2   88 101 4600 142 165 7500 220 255 11600 375 431 19700
0.5   163 191 6510 265 311 10600 410 481 16400 697 819 27800
1.0   263 313 8810 428 510 14300 661 788 22200 1125 1341 37700
2.0   442 534 12500 720 870 20300 1113 1344 31300 1893 2287 53300
3.0   603 737 15300 981 1199 24800 1517 1854 38400 2581 3153 65300
4.0   752 925 17600 1224 1505 28700 1892 2327 44300 3218 3958 75400
5.0   900 1113 19700 1465 1811 32100 2265 2800 49600 3853 4763 84300
6.0   1048 1301 21600 1706 2117 35100 2636 3273 54300 4485 5568 92400
7.0   1192 1489 23300 1940 2423 37900 2999 3746 58600 5102 6373 99800
8.0   1339 1677 24900 2179 2729 40600 3368 4219 62700 5730 7177 107000
9.0   1485 1865 26400 2418 3035 43000 3737 4692 66500 6358 7982 113000
10.0   1632 2053 27900 2656 3342 45300

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