Pressure Ranges; Installation; Preparation - GF 604 Bedienungsanleitung

Instruction manual
6.4

Pressure ranges

Serie Type 604/605
FC
Material PVC-U, PVC-C, ABS*,
valve body** PP-H, PVDF
EPDM
Diaphragm
pressure
[bar]
d20/DN15 6
* On demand
** Information of temperature resistance www.gfps.com/dv
7

Installation

7.1

Preparation

Death or seriously injury could occur due to contact with the medium.
The use of grease, especially on amorphous plastics, can cause stress cracking on the valve
body which can lead to leakages.
Do not use grease for the threaded connection between housing nut and valve body!
Inspect the Diaphragm valve for transport damages. Damaged valves must not be
installed.
Only use diaphragm valve where the valve and the diaphragm correspond specifically to
the materials, pressure rating, type of connection and dimensions for the particular
application.
Carry out function test: open and close the diaphragm valve. You must not install valves
which do not function properly.
Diaphragms and other sealing elements should be checked before mounting to make
sure that there are no damages from aging. Aged parts which exhibit hardening or
fissures must not be installed.
FO
PVC-U, PVC-C, ABS*,
PP-H, PVDF
FKM PTFE EPDM
[bar] [bar] [bar]
6 6 6
DA
PVC-U, PVC-C, ABS*,
PP-H, PVDF
FKM PTFE EPDM
[bar] [bar] [bar]
6 6 6
Installation
FKM PTFE
[bar] [bar]
6 6
35