Installation - GF CONTAIN-IT Plus Bedienungsanleitung

Instruction Manual
5.2

Installation

The best assembly position is horizontal.
 Join the inner pipe of the diaphragm valve with the inner pipe of the double
containment pipe system.
 Abide by the waiting times after fusion or cementing as indicated in the chapter
on "Jointing Technology" in the Planning Fundamentals Industry.
WARNING
Removing of the hand wheel!
A build-up of internal pressure may cause the valve pinion to pop out,
leading to injury and/ or damage.
 Before removing the hand wheel, any internal operating or test pressure
must be released.
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
 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.
36
Installation
valve