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070/351 Pressure-Vacuum Bleeder
Brand: Qualitrol Company
Designed to balance pressure and vacuum conditions within a sealed vessel by releasing or admitting air and gas.
If internal pressure reaches the pre-determined setting, valve will exhaust gas from the tank.
If vacuum inside vessel becomes too great, the valve will admit air into the tank.
Features- Available with local indication (Qualitrol 070)
- Accurate and reliable pressure control
- All bleeder models meet or exceed ANSI standards for transformers
- Repeatability of bleeder is ±0.5 psig on both pressure and vacuum setting
- Tough construction meant for indoor or outdoor use
- Coated with a thermosetting powder coat finish to withstand rough environmental conditions
- Screened openings inhibit entry of contaminates
- Standard models available for top, side or bottom mounting
- Indicator gauge can be added for simplified installation on vessel
- Wide range of adjustable pressure/ vacuum settings
- An integrated sampling valve allows gas samples to be drawn off for analysis
Specifications
Brand
Ambient Operating Temperature
- -40° to 70° C (-40° to 158° F)
Casing
- Cast Zinc-Aluminum with Thermosetting Powder Coat Finish
Dial Diameter
- 3.5” (89 mm) - 070 Series
Dial Range
- psi: -10 to 10
- psi: -5 to 5
Diaphragm Material
- Silicone
- Viton
Media for Valve
- Air
- Gas
Mounting
- Side Mount - 070 Series
- Top, Bottom or Side Mount - 351 Series
Pressure Range
- On Bleeders - psig: 3 to 12 (kPa: 21 to 83, bar: 0.21 to 0.83)
Repeatability
- 0.5 psi
Tank Connection
- 1/4”-14 NPT
- 1/8”-27 NPT
Vacuum Range
- On Bleeders - psig: -3 to -12 (kPa: -21 to -83, bar: -0.21 to -0.83)