Pressure switch (Pressure alarm switch)
- Certificate: UL Listed / FM Approved
- Standard: UL 753 / FM 3132, comply to NFPA 13, 13D, 13R, 72
- Connection: 1/2″ NPT male
- Temperature: -40°C to 60°C
- Operating pres.: 300 / 250 psi
- Enclosure: IP66
- Surface: Corrosion resistant finish
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Description
Pressure switch is used in wet, dry, or other fire sprinkler system to detect an pressure increase or decrease from normal system pressure, so to transmit the signal automatically to local alarm system and fire pump control cabinet.
Available size
| Application | Switch | Adjustment pressure range | Factory set | Ref. No. |
|---|---|---|---|---|
| Wet pipe system with alarm check valve, dry pipe, preaction, or deluge valve | Single (One set of SPDT) / Double (Two sets of SPDT) | 4 ~ 20 psi, or 4 ~ 15 psi | 4 ~ 8 psi | V8601 |
| Dry pipe system, preaction, pressure tank, air and water supply | Single (One set of SPDT) / Double (Two sets of SPDT) | 10 ~ 100 psi, or 10 ~ 60 psi | Operates on increase 50 psi and on decrease at 30 psi | V8604 |
| Wet pip system with excess pressure, pressure tank, air and water supply | Single (One set of SPDT) / Double (Two sets of SPDT) | 10 ~ 200 psi, or 25 ~ 225 psi | Operates on increase 130 psi and on decrease at 110 psi | V8612 |
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