55-400 REMOTE SWITCHOVER
Chlorine dosing is one of the key processes on water and wastewater treatment plants. To ensure that this process is uninterrupted, Wallace & Tiernan® remote vacuum switchover units deliver continuous supply.
Switchover units provide unattended automatic switchover to a fresh gas supply when the on-line supply is exhausted. The switchover is non-isolating for complete gas withdrawal. This units are remote mounted and allow for vacuum manifolding of multiple gas containers for high capacity feed rates up to 75 kg/hr (4000 ppd) of chlorine. The switchover operates on vacuum and is installed in the gas feed line between separate banks of vacuum regulating valves and the control unit of a new or existing gas dosing systems.
APPLICATIONS
- Municipal or industrial water treatment
- Municipal or industrial wastewater treatment
- Industrial process water
- Aquatics
KEY BENEFITS
- Non-isolating switchover for complete gas withdrawal
- Switchover is automatic and does not require operator’s attention
- Manual release handle allows for manual switchover
- Easy-to-read icons indicate operating status (55-400 model only)
- Wall or panel mounting for operator convenience
- Suitable for use with chlorine, sulfur dioxide and ammonia
| Switchover model | Capacity |
| 55-410 | 20 kg/h (1,000 ppd) chlorine and sulfur dioxide8 kg/h (450 ppd) ammonia |
| 55-400 | 75 kg/h (4,000 ppd) chlorine and sulfur dioxide36 kg/h (1,900 ppd) ammonia |
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