Installation; Preparation - GF DIASTAR Serie Manual Instrucciones

Instruction Manual
6

Installation

6.1

Preparation

WARNING
Use of grease on the threaded connection between housing nut and
body.
The use of grease, especially on amorphous plastics, can cause stress
cracking on the valve body. Death or serious injury could occur due to
contact with the medium. The function of the valve is not warranted.
 Irrespective of the valve body material, 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 valves 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 there are no damages from aging. Aged parts which exhibit
hardening or fissures must not be installed.
46
Installation
valve