Model 801 Coolant FRU

COOLANT FLUID ROTARY UNION (FRU)

The Model 801 Fluid Rotary Union (FRU) is designed to operate with ethylene glycols (non-silicate inhibitors), propylene glycols and polyalphaolefins (PAO), providing very low leakage rates over relatively long service intervals. The Model 801 FRU can be used as a standalone unit, or can be integrated with electrical slip rings and / or fiber optic rotary joints.

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Features

2-pass for supply and return
G 1/2 inch BSPP housing ports
M14 shaft ports
2x G 1/8 inch BSPP drain ports for leak collection
Through bore (for fiber or electric pigtails)
Rotational speeds up to 120 rpm continuous
Continuous 360掳 rotation
Custom flanges and adaptors available
Light weight
100 million revolution life
0.12 mL / hour leak rate

Benefits

Minimal downtime and maintenance
Compact and lightweight design
Designed for ease of integration with Focal聽electrical slip rings听补苍诲听fiber optic rotary joints
Proven reliability in military applications

Typical Applications

Radar
Ground vehicles
Turrets
Airborne applications
Naval applications

Specifications

Specifications
Rotational Speed¹	120 rpm (continuous)
Torque²	Approx. 5 lb-ft [6.8 N-m]
Weight	Dependent on configuration
Pressure¹	120 psi
Rotational Life	> 100 million revolutions
Temperature	-55掳C to +80掳C (ambient) -40掳C to +75掳C (liquids)
Shock / Vibration	MIL-STD-810G

¹Operational life is dependent on pressure, temperature, rotational speed duty cycle and size of assembly. Maximum values do not apply concurrently. Please consult the factory for actual value.

²Break-in torque may be higher

³Flexible conduit should be used to couple to the rotating component. The torque arm must be loose coupled.

Resources

Literature

Data Sheets

Model 801 Technical Data Sheet

Technical Support

Telephone: 聽+1-902-468-2263

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