Samson 44-4, Монтаж и эксплуатация

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EB 2723 EN 15
Design and principle of operation
Table 1: Technical data · All pressures in bar (gauge)
Regulator Excess pressure valve
44-7 44-4 (SEV) · 44-8 (SEV)
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
Max. permissible differential pressure ∆p 11 bar
Set point range (continuously
adjustable)
Type 44-7 1 to 4 bar · 2 to 4.4 bar · 2.4 to 6.6 bar · 6 to 11 bar
Type 44-4 (SEV)
Type 44-8 (SEV)
1 to 4 bar 2) · 2 to 4.4 bar · 2.4 to 6.6 bar · 6 to 11 bar
Leakage class according to IEC 60534-4 ≤0.05 % of K
VS
coefficient
Compliance ·
Max. perm. ambient temperature 60 °C
1)
With seals made of FKM; without type test (Types 44-4 and 44-8)
2)
Special version, without type test
Table 2: Materials · Material numbers according to DIN EN
Body Red brass CC499K
Spheroidal graphite iron
EN-GJS-400-18-LT
Seat 1.4305
Plug 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