Rotating Unions

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Rotating Unions



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Cary offers 3 standard models of rotating unions with a wide range of port sizes and thread configurations. Available are single flow, double flow, and a special compact double flow. Also available are double flow elbows, stationary feed tubes and connecting hose assemblies.

The dependable, leakproof Cary rotating union works on the face sealing principle and features precision mating carbon seals and ceramic seats. The surfaces have a surface of four (4)rms and are lapped to obtain a true flatness of two (2) light bands or .000023 inch and inspected by optical testing. After assembly each union is bench tested to assure no leakage and is free of other abnormalities before a Cary label is applied.

  • Speed: To 2500 RPM max. ("R" & O")
  • Pressure: To 300 PSI Hydraulic max.
  • Temp.: To 250° F. max.
  • For other operating conditions please consult Cary Mfg.

 

 

"O" Series Union


 

 

NOTE: Rotors with left hand threads are notched.
Double Flow should be specified when applicable.

 

Rotor Size Inlet Size Model Number Cv
1/2" NPT RH 1/2" NPT
3/4" NPT
46030
46054
6
1/2" NPT LH 1/2" NPT
3/4" NPT
46031
46055
6
3/4" NPT RH 1/2" NPT
3/4" NPT
1" NPT
46056
46032
46012
14.5
3/4" NPT LH 1/2" NPT
3/4" NPT
1" NPT
46057
46033
46013
14.5
1"-14 NF RH 1/2" NPT
3/4" NPT
1" NPT
46058
46034
46014
14.5
1"-14 NF LH 1/2" NPT
3/4" NPT
1" NPT
46059
46035
46015
14.5
1" NPT RH 1/2" NPT
3/4" NPT
1" NPT
46060
46061
46036
23
1" NPT LH 1/2" NPT
3/4" NPT
1" NPT
46062
46063
46037
23

 



The Cary Compact Double Flow Union is specially designed to fit into limited areas. The double flow configuration is achieved within the standard O-series outline dimensions. No external double flow elbow is required. Except for the special endcap, all components are interchangeable with the standard O-series Union.

Rotor Size Inlet & Return Model Number
1/2" NPT RH
1/2" NPT LH
1/2" NPT 46038
46039
3/4" NPT RH
3/4" NPT LH
1/2" NPT 46042
46043
1"-14 NF RH
1"-14 NF LH
1/2" NPT 46046
46047
1" NPT RH
1" NPT LH
1/2" NPT 46050
46051

 

 

"O-1/2" Series Union



NON-STOCK ITEM - SPECIAL ORDER ONLY

 

The O1/2 Series unions, like the smaller O and R series have an unobstructed flow path which reduces the pressure loss and minimizes the tendency for mineral deposits to form. Very high Cv's are achieved within a modest overall size. This series is available in stainless steel only with high temp Viton seals. It is used primarily for the bottling industry and complete rebuild kits are available.

 

Rotor Size Inlet Size Model Number Cv
1-1/2" NPT RH 1-1/2" NPT 46108-SSV 52
1-1/2" NPT LH 1-1/2" NPT 46109-SSV 52

 

 

"R" Series Union


 

Rotor Size Inlet Size Model Number Cv
1/4" NPT RH
1/4" NPT LH
1/4" NPT 46000
46001
3.5
3/8" NPT RH
3/8" NPT LH
3/8" NPT 46002
46003
3.5
5/8"-18 NF RH
5/8"-18 NF LH
3/8" NPT 46004
46005
3.5
5/8"-18 NF RH
5/8"-18 NF LH
1/4" NPT 46006
46007
3.5
5/8"-18 NF RH
5/8"-18 NF LH
1/2" NPT 46008
46009
3.5

 

 

Rotating Union Accessories

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Double Flow Elbow


 

Cary double flow unions are used when the fluid introduced into rotating cylinder, drum, or shaft must be withdrawn from the same side. The Cv for double flow unions is primarily determined by the feed tube. See approximate values listed.

 

Series A B C Part Number
O Series 1/2" NPT 1/2" NPT 1/4" NPT 42121

 

 

Sanitary Feed Tube


 

Cv A B C Model Number
1 72" 12" 1/4" NPT 42122