Function and configurationPressure gauge isolator valves type AF 6 are 3-way spool valves for manual operation.They serve to monitor the prevailing operating pressure.The valves basically consist of h...
Product Detail
Function and configuration
Pressure gauge isolator valves type AF 6 are 3-way spool valves for manual operation.
They serve to monitor the prevailing operating pressure.
The valves basically consist of housing (1), spool (2), compress spring (3), push button (4).
It has two switched positions as well as spring return to the initial position.
In the initial position, flow from P to the pressure gauge via the spool (2) is blocked and the pressure gauge is connected with channel T.
When the button (4) is pushed, the spool (2), is moved into the switched position, giving free flow from P to the pressure gauge and the connection to T is blocked. After operation, the spool (2) is pushed back into the initial position by the compress spring (3) and thereby unloads the pressure gauge.
The valve is available for sub-plate mounting or threaded connections.
The pressure gauge can be directly screwed in to the valve housing or fitted separately (see installation examples).
Installation examples
Ordering code
Technical data
| Fluid | Mineral oil, Phosphate eser |
| Fluid temperature range ℃ | -30 to +80 (NBR seal) |
| -20 to +80 (FKM seal) | |
| Viscosity range m㎡/s | 2.8 to 380 |
| Degree of contamination | Maximum permissible degree of fluid contamination: Class 9. NAS 1638 or 20/18/15, ISO4406 |
| Max.operating pressure bar | 315 |
| Indicatingrange of pressure gauge bar | 60,100,160,250,400 |
| the indicating range should be approx. 30% above the max.operating pressure | |
| Weight kg | 1.4 |
Unit dimensions
