TIVAL mechanical pressure switch FF 4 VdS
TIVAL FF4 VdS pressure switch - approved for water extinguishing systems
The TIVAL FF4 VdS is a tested alarm and control pressure switch with VdS approval for use in permanently installed water extinguishing and fire protection systems. It is equipped with a Perbunan diaphragm and a robust silumin pressure connection. The G 1/2″ internal thread pressure connection ensures a secure connection and high tightness.
All variants of the TIVAL FF4 VdS series are approved by VdS loss prevention and offer precise pressure monitoring for stationary extinguishing and fire protection systems.
Differences between the FF4 VdS models
FF4-2 VdS
- Standard alarm pressure switch with setting range up to max. 1 bar
FF4-2 VdS DRI
- Alarm pressure switch with manual reset, as well as manual release after pressure drop
FF4-10 VdS
- Pressure range up to 10 bar with reduced differential setting (max. 1.5 bar)
FF4-16 VdS
- Pressure range up to 16 bar with reduced differential setting (max. 1.5 bar)
| Article | Upper | Lower Switching point Adjustable (bar) | Pressure- difference* (bar) | Maximum Operating pressure (bar) | Maximum Test pressure (bar) | Factory setting (bar) | Article number |
|---|---|---|---|---|---|---|---|
| FF 4-2 VdS DAI | 0,35 ... 1 | 0,25 ... 0,9 | 0.1 solid | 20 | 40 | 0,6 / 0,7 | 1020068 |
| FF 4-2 VdS DRI** | 0,5 ... 1 | 0.2 solid | 20 | 40 | ... / 0,7 | 1020070 | |
| FF 4-10 VdS DAI | 0,7 ... 10 | 0 ... 8,5 | 0,5 ... 1,5 | 40 | 40 | 4 / 5 | 1020080 |
| FF 4-16 VdS DAI | 1 ... 16 | 0,5 ... 15 | 0,8 ... 1,5 | 48 | 48 | 11 / 12 | 1020067 |
**FF 4- 2 VdS DRI with manual reset for max. pressure