HDU 27/27-108

Product catalog summary

Application
The HDU 27/- series of CJC® Off-line Fine Filters are designed for maintaining fluids used in power transmission, lubrication, cooling, and quenching. The HDU 27/27-108 model is particularly effective in removing particles, degradation products, and water from these fluids.

Function
The filter operates by drawing fluid from the system tank through a filter insert, with the filtered fluid returning to the tank. The pressure drop across the filter, indicating contaminant absorption, is monitored via a pressure gauge. The return point for the filtered fluid should ideally be non-pressurized.

Filter Pump
The filter pump is a gear wheel type, compatible with standard AC and DC voltages.

Filter Insert
The inserts are composed of bonded discs made from cellulose or cotton linters, depending on the fluid type.

Options
Available options include a preheater, tank, drip pan, control box, and pressure switch.

Filtration Ability

Particle Removal: 98.7% of particles >3 µm and 50% of particles >0.8 µm are removed per pass. The dirt holding capacity ranges from 4 to 16 liters.
Degradation Products: The filter retains approximately 4-16 kg of oil degradation products.
Water Removal: The filter can absorb up to 50% of its total contaminant holding capacity in water, equating to 2,000-8,000 mL.

Technical Data
The HDU 27/27-108 model features a pump flow rate of 45-4000 liters per hour, a maximum pump inlet pressure of 0.5 bar, and a maximum pressure drop of 1.8 bar. It supports oil temperatures up to 80°C and has a dirt holding capacity of 16 liters. The design pressure is 4 bar, and it operates effectively in ambient temperatures up to 40°C.

Applicable Filter Inserts
Different types of filter inserts are available for various applications, including low flow systems, higher flow systems, quenching oils, diesel oils, water-based fluids, and glycol-based hydraulic fluids.

Components
The filter system includes components such as a sampling point, plug, drain valve, filter plate, relief valve, pump, O-ring, filter insert, spring guide, filter housing, pressure gauge, top nut, vent screw, nut for spring, spring, cover, filter base, stay bolt, and additional plugs.

Dimensions
Measurements are provided in both millimeters and inches for various components and connections.

Catalog excerpts

APPLICATION The HDU 27/- series of CJC® Off-line Fine Filters are used for the maintenance of fluids for power transmission, lubrication, cooling and quenching. The HDU 27/27-108 is ideal for removal of particles, degradation products and water. FUNCTION The filter pump draws fluid from the system tank (at lowest point) and presses it through the filter insert. From the centre of the insert the fluid flows through the filter base and returns to the tank. The pressure drop over the filter - and consequently the contaminant absorption of the filter insert - is monitored on the pressure gauge on the filter top. The filter outlet port is placed in the filter base. The filtered fluid should be returned to the tank close to the suction pipe of the main system pump. Note that the return point preferably should be non-pressurized. Contact us in case this is not possible. HDU 27/27-108 CJC® Offline Fine Filter THE FILTER PUMP The filter pump is a gear wheel pump. The electric motor can be supplied for all standard AC and DC voltages. TECHNICAL DATA Model HDU 27/27 27/108 FILTER INSERT The CJC® Filter Inserts consist of several discs bonded together. The material is either cellulose or cotton linters depending on the fluid to be filtered. OPTIONS • Preheater • Tank • Pressure switch Pump flow, per hour (std.) Pump type Pump inlet pressure, max. bar/psi Power consumption, aver. FILTRATION ABILITY • Particle Removal All CJC® Filter Inserts have the following filtration degree: - 3 ywm absolute: 98.7% of all solid particles >3 ^m - 0.8 j^m nominal: 50% of all solid particles >0.8 ^m are retained in each pass. The dirt holding capacity is 4-16 litres of evenly distributed solids. • Degradation Products Oxidation products, resin / sludge, and varnish are retained by the cellulose material, which will retain appr. 4-16 kgs of oil degradation products. • Water Removal The water absorption potential is up to 50% (i.e. 2,000-8,000 mL H20) of the total contaminant holding capacity. Dirt holding capacity, appr. ltr/gal 4/1.1 8/2.1 12/3.2 16/4.2 **) Does not hold water permanently.

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HDU 27/27-108 CJC® Offline Fine Filter Product Sheet COMPONENTS DIMENSIONS CJC® Off-line Fine Filter HDU 27/27-108 P 44 009 03-4 Measurements in mm and inches System Pump In-Line Filter C.C.JENSEN A/S Lpvholmen 13 • DK-5700 Svendborg • Denmark Phone: +45 6321 2014 • Fax: +45 6222 4615 [email protected] • www.cjc.dk

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HDU 27/27-108

HDU 27/27-108

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