VEGA Mounting accessories, pressure measurement technology - Manual (Page 9)

5 Blocking valves
5 .1 Blocking valve according to DIN 16270
Blocking valves according to DIN 16270 enable simple mounting,
setup and dismounting of a pressure transmitter with process fitting
G½.
The ventilation screw enable the removal of residual air as well as a
relieve of the residual pressure between valve and pressure trans-
mitter.
The valve is opened via a hand wheel (turning anticlockwise) or closed
(turning clockwise). The sealing in the medium is made metallically,
the sealing of the valve spindle via a gland packing.
2
1
4
3
1
4
1
1 3
1 2
G ½
G ½
90 mm
(3.54")
100 mm
(3.94")
G ½
DIN EN 837-1
Fig. 3: Configuration of blocking valve according to DIN 16270
1
Input (process)
2 Valve for blocking, process
3 Ventilation screw
4 Output (pressure transmitter)
Application area/Func-
tion
Handling
Configuration
Mounting accessories, pressure measurement technology 9
5 Blocking valves
43478
-
EN
-121018