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Safety valve LESER 439

Safety valve LESER 439
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  • Nominal inlet: 3/8”-1”, DN15-DN25
  • Response pressure: 0.1-16 bar
  • Working medium pressure: 40 bar-400 bar
  • Working environment temperature: -45 to 150 °C
  • Material: 1.4104; 1.4404

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  • Dimensions and weights
  • Design pressures and temperatures
  • Throughput (Steam)
  • Throughput (Air)
  • Throughput (Water)
  • Technical documentation
  • Delivery
  • Payment
Threaded connection
Outlet body size 1 / 2´´ 3 / 4´´ 1
Fact. dia. holes d0 [mm] ten ten ten
-
Weight [kg] 1,2 1.6 1.6
Diameter required for installation [mm] 65 80 80
Internal thread at the entrance
DIN ISO 228-1 center to end surface [mm] Entrance a 45 55 55
Output b thirty 37 37
Height [mm] H max. 210 220 220
ISO 7-1 / BS 21 center to end surface [mm] Entrance a 45 55 55
Output b thirty 37 37
Height [mm] H max. 210 220 220
ANSI / ASME B.1.20.1 Center to End surface [mm] Entrance a 45 55 55
Output b thirty 37 37
Height [mm] H max. 210 220 220
Male inlet thread
DIN ISO 228-1 center to end surface [mm] Entrance a 33 33 36
Output b thirty 37 37
ISO 7-1 / BS 21 center to end surface [mm] Entrance a 31 31 34
Output b thirty 37 37
ANSI / ASME B.1.20.1 Center to End surface [mm] Entrance a 31 31 34
Output b thirty 37 37
Male thread height at the entrance
Inlet thread The size 3 / 8´´ 1 / 2´´ 3 / 4´´ 1
DIN ISO 228-1 [mm] H max. 210 212 214 216
ISO 7-1 / BS 21 [mm] H max. - 215 216 219
ANSI / ASME B.1.20.1 [mm] H max. - 218 218 223
Length of the inlet end with an external thread (dimension "c")
Inlet thread The size 3 / 8´´ 1 / 2´´ 3 / 4´´ 1
DIN ISO 228-1 [mm] H max. 12 fourteen 16 eighteen
ISO 7-1 / BS 21 [mm] H max. - 19 twenty 23
ANSI / ASME B.1.20.1 [mm] H max. - 22 22 27

схема LESER 439

Flange connection
Fact. dia. holes d0 [mm] ten
DIN ISO 1092-1
- Flange rating Py40
Center to end. surface [mm] Entrance a 100
Output b 100
Height [mm] H max. 263
- Flange rating ≥ Py160
Center to end. surface [mm] Entrance a 103
Output b 100
Height [mm] H max. 266
ASME B 16.5
- Flange class 150
Center to end. surface [mm] Entrance a 100
Output b 100
Height [mm] H max. 263
- Flange class ≥ 300
Center to end. surface [mm] Entrance a 103
Output b 100
Height [mm] H max. 266
Weight
Net weight (without inlet and outlet flange) [kg] 2.4

конструкция LESER 439

Fact. dia. holes d 0 [mm] ten
Body material: 1.4104 (430)
Base / Housing Entrance Chamber Connection size 3 / 8´´ 1 / 2´´ 3 / 4´´ 1
Design pressure PN 320
Outlet housing Design pressure PN 160
Minimum set pressure p [bar] 5
Maximum set pressure p [bar] 10, only H3 93
Temperature according to DIN EN min. [0C] -ten
Max. [0C] +150
Body material: 1.4404 (316L)
Base / Housing Entrance Chamber Connection size 3 / 8´´ 1 / 2´´ 3 / 4´´ 1
Design pressure PN 320
Outlet housing Design pressure PN 160
Minimum set pressure p [bar] 5
Maximum set pressure p [bar] 10, only H3 68
Temperature according to DIN EN min. [0C] -45
Max. [0C] +150
Fact. dia. holes d 0 [mm] ten
Set pressure Bandwidth
[bar] Saturated steam [kg / h] Air 00C and 1013 mbar [m 3 / h at norm.usl.] Water 200C [10 3 kg / h]
0.1 15 eighteen 0.66
0.2 19 22 0.81
0.3 23 26 0.93
0,4 26 thirty 1.05
0.5 29 34 1.14
0.6 32 37 1.24
0.7 33 40 1.32
0.8 36 43 1.40
0.9 38 45 1.48
1.0 41 49 1.55
1.1 43 51 1.63
1,2 45 54 1.70
1,3 47 56 1.77
1.4 50 60 1.83
1.5 52 63 1.90
1.6 54 65 1.96
1.7 56 68 2.02
1.8 58 70 2.08
1.9 60 73 2.14
2.0 63 76 2.19
2.1 65 78 2.25
2.2 68 83 2.30
2,3 70 85 2.35
2.4 72 88 2.40
2.5 74 90 2.45
2.6 76 93 2.50
2.7 79 96 2.55
2.8 81 98 2.59
2.9 83 101 2.64
3 85 104 2.69
4 106 130 3.10
5 127 157 3.47
6 148 183 3.80
7 168 210 4.10
eight 189 236 4.38
nine 209 263 4.65
ten 230 289 4.90
eleven - 316 5.14
12 - 342 5.37
13 - 368 5.59
fourteen - 395 5.80
15 - 421 6.00
16 - 448 6.20
Fact. dia. holes d 0 [mm] ten
Set pressure Bandwidth
[bar] Saturated steam [kg / h] Air 00C and 1013 mbar [m 3 / h at norm.usl.] Water 200C [10 3 kg / h]
0.1 15 eighteen 0.66
0.2 19 22 0.81
0.3 23 26 0.93
0,4 26 thirty 1.05
0.5 29 34 1.14
0.6 32 37 1.24
0.7 33 40 1.32
0.8 36 43 1.40
0.9 38 45 1.48
1.0 41 49 1.55
1.1 43 51 1.63
1,2 45 54 1.70
1,3 47 56 1.77
1.4 50 60 1.83
1.5 52 63 1.90
1.6 54 65 1.96
1.7 56 68 2.02
1.8 58 70 2.08
1.9 60 73 2.14
2.0 63 76 2.19
2.1 65 78 2.25
2.2 68 83 2.30
2,3 70 85 2.35
2.4 72 88 2.40
2.5 74 90 2.45
2.6 76 93 2.50
2.7 79 96 2.55
2.8 81 98 2.59
2.9 83 101 2.64
3 85 104 2.69
4 106 130 3.10
5 127 157 3.47
6 148 183 3.80
7 168 210 4.10
eight 189 236 4.38
nine 209 263 4.65
ten 230 289 4.90
eleven - 316 5.14
12 - 342 5.37
13 - 368 5.59
fourteen - 395 5.80
15 - 421 6.00
16 - 448 6.20
Fact. dia. holes d 0 [mm] ten
Set pressure Bandwidth
[bar] Saturated steam [kg / h] Air 00C and 1013 mbar [m 3 / h at norm.usl.] Water 200C [10 3 kg / h]
0.1 15 eighteen 0.66
0.2 19 22 0.81
0.3 23 26 0.93
0,4 26 thirty 1.05
0.5 29 34 1.14
0.6 32 37 1.24
0.7 33 40 1.32
0.8 36 43 1.40
0.9 38 45 1.48
1.0 41 49 1.55
1.1 43 51 1.63
1,2 45 54 1.70
1,3 47 56 1.77
1.4 50 60 1.83
1.5 52 63 1.90
1.6 54 65 1.96
1.7 56 68 2.02
1.8 58 70 2.08
1.9 60 73 2.14
2.0 63 76 2.19
2.1 65 78 2.25
2.2 68 83 2.30
2,3 70 85 2.35
2.4 72 88 2.40
2.5 74 90 2.45
2.6 76 93 2.50
2.7 79 96 2.55
2.8 81 98 2.59
2.9 83 101 2.64
3 85 104 2.69
4 106 130 3.10
5 127 157 3.47
6 148 183 3.80
7 168 210 4.10
eight 189 236 4.38
nine 209 263 4.65
ten 230 289 4.90
eleven - 316 5.14
12 - 342 5.37
13 - 368 5.59
fourteen - 395 5.80
15 - 421 6.00
16 - 448 6.20

Safety valve LESER 439

  • Pickup from a warehouse in Kiev
  • New Mail
  • SAT
  • Deliveri
  • Courier in Kiev
  • Cashless payment with VAT
  • Online Privat24, Visa / MasterCard
Safety valve LESER 439

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