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EB 2623-1 EN
15
Design and principle of operation
Table 1:
Technical data · All pressures in bar (gauge)
Regulator
Pressure reducing valve
44-2
44-3 (SSV) · 44-9 (SSV)
Connection
Red brass body
Male thread DN 15, 20, 25, 32, 40 and 50
Spheroidal graphite iron body
Flanges DN 32, 40 and 50
Pressure rating
PN 25
Max. permissible
temperature
Liquids
150 °C
Non-flammable gases
80 °C
Air and nitrogen
1)
150 °C
Set point range (continuously adjustable)
1 to 4 bar
3)
· 2 to 4.2 bar 2.4
to 6.3 bar · 6 to 10.5 bar
Leakage class according to IEC 60534-4
≤0.05 % of K
VS
coefficient
2)
Compliance
·
Max. perm. ambient temperature
60 °C
1)
With seals made of FKM; without type test (Types 44-3 and 44-9)
2)
Leakage rate = I/bubble-tight applies to EPDM/FKM soft seal.
3)
Special version of Type 44-3 and Type 44-9, without type test
Table 2:
Materials · Material numbers according to DIN EN
Enclosure
Red brass CC499K
Spheroidal graphite iron EN-GJS-400-18-LT
Seat
1.4305
Plug
2)
Brass 2.0402 and stainless steel 1.4305 with EPDM soft seal
1)
Actuator housing/
intermediate ring
Red brass CC499K
Set point spring
1.4310
Operating diaphragm
EPDM with fabric reinforcement
1)
Seals
EPDM
1)
1)
Special version, e.g. for mineral oils: FKM
2)
K
VS
0.4: stainless steel 1.4305
Содержание 44-2
Страница 36: ...36 EB 2623 1 EN Annex p2 p1 116 70 78 130 2 28 112 83 57 125 15 134 90 35 25 155 53 30 27 DN 32 to 50...
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