Zero Air Loss Drain 115V w/N.O. Contacts 230 PSI – SG-3500U3
Part number: SG-3500U3
$525.00
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Product information
Overview
The SG-3500U3 is an electronically controlled zero-air-loss drain for compressed-air filters and refrigerated dryers. It monitors condensate level and discharges when needed rather than relying on a fixed timer cycle.
- Electrical supply: 115V AC with 6-foot power cord
- Maximum working pressure: 230 PSI
- Capacity: up to 3,500 SCFM or 176 gallons per hour at 230 PSI
- Connection: 1/2-inch NPT top or side inlet; 1/4-inch hose discharge
- Normally open alarm contact, digital level indication and test button
- Integral mesh strainer and 4 mm orifice
Maintenance matters
Drain condensate when it collects
A level-sensed drain responds to accumulated condensate rather than opening only on a preset timer. This approach removes liquid while avoiding unnecessary compressed-air discharge, helping manage condensate with less air waste.
- Responds to condensate level
- Reduces unnecessary drain-air loss
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