Three-Stage Regulators
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This Three-Stage Regulators are preset regulator specially designed to deliver a highly accurate and consistent low-pressure supply of nitrogen to oil-filled power transformers. Available with or without electronic pressure switch.
The regulator will deliver and maintain 0.50 PSIG in the head space of oil-filled transformers. A built-in self-relieving valve set at 8 PSIG protects the system from over-pressurization due to temperature variation.
Both models come with rapid-fill bypass pressure valve allowing rapid filling of the transformer with 6 PSIG of pressure.
Notes:
- Operation temperature: -40° to +180° Fahrenheit.
- Operation voltage (model 16347-3): 5 amps at 12/24 volts DC or 125 volts AC. 3 amps at 250 volts.
- Pressure switch setting: Adjustable from 70–300 PSIG (ships preset at 250 PSIG), 3/32-inch Allen head screw switch.
- Switch wiring: Normally open or normally closed (DPDT), three 18-inch flying leads.
Information Chart for the 16391 Three-Stage Nitrogen Low-Pressure Blanketing Regulator
Stock Number | Preset Outlet Pressure 1st Stage | Preset Outlet Pressure 2nd Stage | Preset Outlet Pressure 3rd Stage | Bypass Rapid Fill / Purge | Inlet Connection | Outlet Connection | Max Inlet Pressure |
---|---|---|---|---|---|---|---|
16391 | 150 PSIG into 2nd stage | 8 PSIG into 3rd stage | 0.4–0.6 PSIG into outlet | 6 PSIG | CGA580 | 1/2" FNPT | 3000 PSIG |
16347-3 | 150 PSIG into 2nd stage | 8 PSIG into 3rd stage | 0.4–0.6 PSIG into outlet | 6 PSIG | CGA580 | 1/2" FNPT | 3000 PSIG |
Stock Number 16391 | |
---|---|
Preset Outlet Pressure 1st Stage | 150 PSIG into 2nd stage |
Preset Outlet Pressure 2nd Stage | 8 PSIG into 3rd stage |
Preset Outlet Pressure 3rd Stage | 0.4–0.6 PSIG into outlet |
Bypass Rapid Fill/ Purge | 6 PSIG |
Inlet Connection | CGA580 |
Outlet Connection | 1/2" FNPT |
Max Inlet Pressure | 3000 PSIG |
Stock Number 16347-3 | |
---|---|
Preset Outlet Pressure 1st Stage | 150 PSIG into 2nd stage |
Preset Outlet Pressure 2nd Stage | 8 PSIG into 3rd stage |
Preset Outlet Pressure 3rd Stage | 0.4–0.6 PSIG into outlet |
Bypass Rapid Fill/ Purge | 6 PSIG |
Inlet Connection | CGA580 |
Outlet Connection | 1/2" FNPT |
Max Inlet Pressure | 3000 PSIG |
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