HPEOK PKOLC Adjustable/Fixed Oil Level Regulator

Product Introduction

The HPEOK PKOLC-2-5 adjustable oil level regulator allows the oil level in the compressor crankcase to be maintained at any level between 1/4" and 1/2" sight glass. The PKOLC-2-5 maintains the level at any pressure differential between 5 and 90 psi. If the oil level in the crankcase is too high or too low, the level can be adjusted by turning the adjustment screw on top of the regulator. This can be done while the system is in operation. HPEOK exclusive design eliminates the need of shutting down the system and disconnecting the oil feed lines in order to adjust the regulator.
Product Feature
These regulators feature a 3/8" SAE equalization connection on the side of the adjustable oil level regulator that allows the crankcases to be interconnected. This maintains the same pressure in all of the crankcases including any compressor that is running. This prevents running compressor(s) from siphoning the oil out of the idle compressor(s). 
In order for 2 or more adjustable oil level regulators to be equalized, the compressors must have a common suction line (same suction pressure) and be adjusted to the same oil level. 
The 3/8” SAE equalization connection is at the half sight glass level. It helps prevent over filling of the regulators caused by oil returning down the suction line to an idle compressor. If a regulator fills up to a half sight glass, the oil will be picked up by the equalization connection and sent to the running compressor crankcase. The equalization connection may be sealed off, if equalization is not desired. It will not affect the function of the regulator.
Products Specification

PKOLC Fixed Oil Level Regulator

The PLOLC-2 oil level regulator controls the oil level in the compressor crankcase with a float operated valve. The regulator maintains the oil level in the compressor crankcase at 1/2" sight glass. If lower than this level, the float operated valve will open and fill the oil from oil receiver by automatic. If it in the right oil level, the valve will close and stop filling oil. This can prevent the compressor running correctly.