VEGA Mounting accessories, pressure measurement technology - Manual (Page 10)

The scope of delivery encompasses:
l
Blocking valve
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This supplementary instructions
Feature Feature
Art. no. BARVALVE.E …
Material housing 316Ti
Material seal packing PTFE
Standard DIN 16270
Series Form A, with clamping sleeve
Input Fitting G½, EN 837
Output Clamping sleeve G½
Ventilation screw Yes
Ventilation/Test connection No
Pressure stage/Max. permissible
pressure PN 400/400 bar
Temperature max. 120 °C
Weight approx. 0.6 kg
Rust, sand or similar pollution int he medium, especially when rinsing
the system before the first setup, can cause buildup around the valve
seat. This can cause leakage of the valve seat.
The ventilation opening must be assigned and the ventialtion carried
out in such a way that neither persons nor the environment will be in
danger by penetrating medium.
For ventilation of a blocking valve according to DIN 16270 proceed as
follows:
1 Open valve (2)
2 Open the valve (3) carefully until air escapes
3 Close the valve (3) as soon as medium penetrates
The ventilation is hence finished.
When the prepressed packing is stored for a longer time, its sealing
ability can deteriorate. If necessary, the seal must be retightened at the
time of setup. The procedure is described in chapter "Maintenance
and fault rectification".
Scope of delivery
Technical data
Mounting and setup in-
structions
Storage
10 Mounting accessories, pressure measurement technology
5 Blocking valves
43478
-EN
-121018