+GF+ DIASTAR 025 Manual De Instrucciones página 14

Pneumatic diaphragm valve DIASTAR 025
3.7 Technical Data
3.7.1 Specifications
Specifications
Allowed medium
Dimensions
Pressure levels
Materials
Operating tempera-
ture (valve body
2)
material)
Connecting thread
control air
Ambient temperature
Functions
Actuation
Connection types
Approvals
Further combinations on request.
1)
As per pressure-temperature diagram in data sheet. There may be a deviation of the temperature range depending on the seal
2)
material combination.
14
Liquid and gaseous medium which do not negatively affect the physical and chemical properties of the
respective valve body and diaphragm material during normal mode.
Information on chemical resistance is available from the Georg Fischer Piping Systems Sales
Company or at www.gfps.com.
d75/DN65 – d160/DN150, 2 1/2" – 6"
PN10, ab DN 100: PN 6
Valve body materials PVC-U, PVC-C, ABS, PP-H, PVDF, PVDF-HP
Housing materials PPGF-30 (polypropylene, 30 % fiberglass-reinforced)
Piston PPGF-30 white (polypropylene, 30 % fiberglass-reinforced)
Pressure spindle Stainless steel 1.4104
Metal inserts Stainless steel 1.4305
Gaskets NBR
Springs Galvanized steel
Gaskets/ EPDM, PTFE/EPDM, FKM, FFKM, CSM,NBR
diaphragms
1)
PVC-U 0 to 60 °C
PVC-C 0 to 80 °C
ABS -30 to 60 °C
PP 0 to 80 °C
PVDF -20 to 140 °C
G ¼"
-10°C to 50°C
FC, FO, DA
Pneumatic
Fixed flange, backing flange
ACS, FDA, DIBt, TA Luft, NAMSA
Operating Instructions