SELF-OPERATED DIFFERENTIAL PRESSURE REGULATORS TYPE ZSN 7
Regulators ZSN 7 are designed to control set-up differential pressure in installations, which are connected with the regulator's valve inlet. Their main fields of application are heating and power installations, chemical and food process industries. Regulators are adapted to various working fluids, such as cold and hot water, steam, air and inert gas.
pressure difference control in installation that is connected in parallel to the controller.
the regulator valve remains cloused when without energy supply
high control accuracy,
single ported with the pressure balanced plug,
TECHNICAL DATA
Regulator
Nominal diameter
DN 15 ... 100
Nominal pressure
PN 16, 25, 40
Flow Coeficients
1,0 ... 125 m3/h
Setting range
10...40; 20...80; 40...160; 80...320 kPa
Temperature of medium
0 ... +150°C
Max. Δp at the valve
1,2 MPa (1,0MPa)
Materials
Body
grey cast iron 250 (GG-25)
ductile iron 400-18 (GGG 40.3)
carbon steel L20 (GS-C25)
stainless steel L0H18N10M2 (WNr. 1.4408)