Siemens SIPROCESS GA700 Quick Start Manual page 29

Version with pipes
The gas connections are made of stainless steel, mat. no. 1.4571. They have a screw
connection with ISO female thread 1/8".
Connect the gas lines to the corresponding inlets/outlets.
Introduction of toxic, aggressive or flammable gases
When toxic, aggressive or flammable gases are introduced, carry out a leak test for these
pipe connections.
Note
Pipes
Pipes must be connected to the gas connections using suitable threaded joints. A suitable
washer with applied elastomer mass or a PTFE tape can be used as gasket.
The material of the parts in contact with the gas (threaded joints and gasket material) must
be appropriate to the application.
Version with hoses
The gas connections consist of PVDF. Connect tubes made of FPM (e.g. Viton) or of PTFE
(e.g. Teflon) with an inner diameter of 4 mm and wall thickness of 1 mm to the gas
connections. Fasten the tubes with the clamping ring and screw cap of the PVDF screwed
gland.
Introduction of toxic, aggressive or flammable gases
When toxic, aggressive or flammable gases are introduced, carry out a leak test for these
tube connections.
Quick Start
Compact Operating Instructions, 01/2013, A5E31805656-01
WARNING
WARNING
Connecting
4.2 Gas connections
29