NST-BDV Pressure reducing valves are ideal to use particularly in steam, compressed air, or other nonflammable industrial gases. They are ideal products to decrease the pressure of high pressure liquids for usage. The spring can be changeable cost for the different pressure requirements
|
NOMİNAL SIZE |
DN |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
|
FLOW RATE |
kvs |
4 |
6,3 |
8 |
16 |
20 |
32 |
50 |
75 |
90 |
|
NOMINAL PRESSURE |
PN |
16 - 25 - 40 |
||||||||
|
PERMISSIBLE DIFFERENTIAL PRESSURE |
Max. ∆p |
25 bar |
20 bar |
16 bar |
||||||
|
PERMISSIBLE DIFFERENTIAL TEMPERATURE |
°C max. |
350 °C |
||||||||
|
IEC 60534-4 |
Nl/h |
METAL METALE CLASS I (≤0.05 % of KVS) |
||||||||
|
SET POINT RANGES |
bar |
0,05...0,25 - 0,1...0,6 - 0,2...1,2 - 0,8...2,5 |
||||||||
|
FLOW CHARACTERICTICS |
|
Linear |
||||||||
|
BODY |
Materials of main parts |
JL1040 / JS1049 / 1.0619/ 1.4404 |
||||||||
|
SEAT |
1.4305 / 1.4006 |
|||||||||
|
VALVE CLACK |
1.4305 / 1.4006 |
|||||||||
|
DIAPHRAGM CASES |
1.0037 (St 37-2) |
|||||||||
|
DIAPHRAGM |
EPDM |
|||||||||
|
ADJUSTING SPRING |
DIN 10223/2 VDSiCr |
|||||||||
|
L mm |
Dimension |
130 |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
|
H mm |
323 |
374 |
459 |
485 |
||||||
|
H1 mm |
40 - 80 - 160 - 320cm² 122 / 640cm² 153 |
|||||||||
|
D mm |
40-80cm² Ø170 / 160cm² Ø225 / 320cm² Ø285 / 640cm² Ø380 |
|||||||||
|
WEIGHTS (KG) |
13,7 |
14,3 |
14,8 |
17,8 |
18,5 |
19,5 |
30,2 |
32 |
58 |
|
NST-BDV