Samson 44-7 Mounting And Operating Instructions page 15

Table 1: Technical data · All pressures in bar (gauge)
Regulator
Connection
Pressure rating
Max. permissible
temperature
Max. permissible differential pressure ∆p
Set point range (continuously
adjustable)
Leakage class according to IEC 60534-4
Compliance
Max. perm. ambient temperature
With seals made of FKM; without type test (Types 44-4 and 44-8)
1)
Special version, without type test
2)
Table 2: Materials · Material numbers according to DIN EN
Body
Seat
Plug
Actuator housing/
intermediate ring
Set point spring
Operating diaphragm
Seals
Special version, e.g. for mineral oils: FKM
1)
EB 2723 EN
Red brass body
Spheroidal graphite iron
body
Liquids
Non-flammable gases
Air and nitrogen
1)
Type 44-7
Type 44-4 (SEV)
Type 44-8 (SEV)
Red brass CC499K
Brass 2.0402 and stainless steel 1.4305 with EPDM soft seal
Design and principle of operation
Excess pressure valve
44-7
Male thread DN 15, 20, 25, 32, 40 and 50
Flanges DN 32, 40 and 50
1 to 4 bar · 2 to 4.4 bar · 2.4 to 6.6 bar · 6 to 11 bar
1 to 4 bar · 2 to 4.4 bar · 2.4 to 6.6 bar · 6 to 11 bar
2)
≤0.05 % of K
1.4305
Red brass CC499K
1.4310
EPDM with fabric reinforcement
EPDM
1)
44-4 (SEV) · 44-8 (SEV)
PN 25
150 °C
80 °C
150 °C
11 bar
coefficient
VS
·
60 °C
Spheroidal graphite iron
EN-GJS-400-18-LT
1)
1)
15