Samson 44-7 Mounting And Operating Instructions page 15

Table 1: Technical data · All pressures in bar (gauge)
Regulator
Red brass body
Connection
Spheroidal graphite iron body
Pressure rating
Liquids
Max. permissible
Non-flammable gases
temperature
Air and nitrogen
Max. permissible differential pressure ∆p
Set point range (continuously
adjustable)
Leakage class according to IEC 60534-4
Conformity
Max. perm. ambient temperature
With seals made of FKM; without type test (Type 44-4)
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
1)
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) 1 to 4 bar
Red brass CC499K
Brass CW602N and stainless steel 1.4305 with EPDM soft seal
EPDM with fabric reinforcement
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
PN 25
150 °C
80 °C
80 °C
11 bar
· 2 to 4.4 bar · 2.4 to 6.6 bar · 6 to 11 bar
2)
≤0.05 % of K
60 °C
Spheroidal graphite iron
EN-GJS-400-18-LT
1.4305
Red brass CC499K
1.4310
EPDM
1)
44-4 (SEV)
coefficient
VS
·
1)
1)
15