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The function of a Helical Oil Separator-Reservoir is to remove and

store oil from the discharge gas so that it can be returned to the



Helical Oil Separator-Reservoirs can be used in a variety of applications.

Common applications include multi-compressor racks. Helical Oil Separator-

Reservoirs are intended for High Pressure Oil Management Systems.

These products are designed for use with scroll and reciprocating type

compressors. They are not recommended for screw or rotary vane

compressors. Henry Technologies’ Oil Separators are suitable for use with

HCFC and HFC refrigerants, and their associated oils, as well as other

industrial fluids non-corrosive to steel, copper and Teflon.

How it works

The Helical Separator does not rely on any moving parts for oil separation.

As the oil laden hot gas enters the separator it is directed in a spiral motion

around a helical flighting. The centrifugal forces act on the gas/oil mixture

causing heavier oil particles to spin to the perimeter where they impact an

internal screen. The screen layer functions as both an oil stripping and

draining medium. Separated oil flows downward along the boundary of the

shell through a baffle and into an oil collection chamber. The specially

engineered baffle isolates the oil collection chamber and eliminates oil re-

entrapment by preventing turbulence. The virtually oil free refrigerant gas

then exits through a screen fitting just below the lower edge of the helical

flighting. Oil Separator-Reservoirs do not have an oil float assembly. Instead,

a dip tube is located in the oil chamber that feeds oil to the compressor

through a High Pressure Oil Management System.

Main Features


SAE flare Rotalock valve oil connection


High oil separation efficiency - up to 99%


Low pressure drop


Integrated oil reservoir


*Patented Henry Technologies Design


ODS refrigerant connections

Technical Specifications

Maximum working pressure = 450 PSI (31 Bar)

Allowable operating temperature = +15°F to +300°F (-10°C to +149°C)

Oil Separators are UL and C-UL Listed by Underwriters Laboratories, Inc.

Henry Technologies’ Oil Separators are designed and registered for use in

Canada. Please contact Technical Support at 1-800-627-5148 for CRN

details and list of approved provinces and territories.

Materials of Construction

The main components; shell, end caps and connections are made from

carbon steel.

Installation - Notes

Full instructions are given in the Product Instruction Sheet, included with

each Oil Separator-Reservoir.


Selection Guidelines

Henry Technologies' Oil Separator-Reservoirs rely on adequate gas

velocities to allow for oil extraction from the hot gas so sizing according to the

DCFM rating is important. The Oil Separator-Reservoir DCFM Rating table

shows the min/max ratings allowed for sufficient separation and low pressure

drop. When sized correctly the Oil Separator-Reservoir models will separate

up to 99% of the oil from the hot gas. Please contact Technical Support at 1-

800-627-5148 for assistance or recommendations when selecting Oil