This pneumatic device is activated by a high liquid level in the recovery tank. Once activated, it shuts the air supply to the pneumatic pump, stopping fluid discharge to the tank.
SPECIFICATIONS
Enclosure: PVC and 6061 aluminium
Chemical Compatibility, Exterior Components: Refined petroleum products
Compressed Gas Supply: 0 to 100 psi, filtered to 40 microns (see Note 1)
Compressed Gas Consumption: 0 scfm
Control Valve: 2 way, normally open, 20 scfm @ 100 psi (see note 2)
Operating Temperature: 33 to 120°F. (see note 3)
Compressed Gas Connections: Primary ¼” O.D. push-to-connect tubing fittings. Secondary ¼” female NPT on bulk heads
Operation Status Indicator: Pressure indicator colorimetric, “Green” compressed gas is supplied to pumps, “Black” compressed gas is shut off to pump(s)
Reset After Shut Down: Manually operated
Note 1: The use of synthetic oil in an air compressor can cause chemical deterioration of components In the Control Valve that could result in failure of the unit.
Note 2: The TR- 75713 can support up to six FAP+ZW skimmer pumps. Consult with Envco before using a larger number.
Note 3: If the unit must be operated in temperatures less than 33°F., then a desiccant air dryer must be used to reduce the dew point of the moisture in the compressed gas to a lower temperature than ambient. If using inert compressed gas, check with the supplier concerning the dew point temperature of the inert gas supplier.