Samson 2357-3, Монтаж и эксплуатация, Страница: 17 / 40

EB 2559 EN 17
Design and principle of operation
Table 1: Technical data · All pressures in bar (gauge)
Type
2357-3
– Process medium in the gas phase –
2357-3
– Special version in the liquid phase –
Pressure rating PN 40
K
VS
coefficient 3.2
Set point range 2 to 10 bar · 8 to 26 bar · 25 to 40 bar
Safety function 5 bar above the set point 12 bar above the set point
Excess pressure
function
0.5 bar above the set point
Temperature range –196 to +200 °C
Weight, approx. 3.5 kg
Compliance ·
Table 2: Materials · Material numbers according to DIN EN
Type 2357-3
Body CC754S-GM (brass) 1.4404
Tubular plug 1.4301 1.4301
Plug 1.4301 ∙ PTFE soft seal
Bellows 1.4571
Set point spring Stainless steel 1.4310
Body gasket PTFE
Connec -
tions
A, B M40x2 Welding ends 26.9 x 2
C M26 x 1.5 male thread
Non-return unit M40x2 M26x1.5