Item # 145631E, Single Passage Rotorseals On The Rowland Company

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	Item # 145631E, Single Passage Rotorseals

Rotorseal
Standard model

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Single Passage Rotorseals Mounting Diagram

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Unit of Measure: Imperial Metric Both

Specifications · General Description · Note

Specifications

Size

AA2

Rotorseal Type

AA2

Number of Passages

Inlet Port Thread (O)¹

1/8-27

Hose Used In All Arrangements

153x261

Insulating Coupling²

N/A

Quick Release Valve

N/A

Assembly with Insulating Coupling

N/A

Assembly with Insulating Coupling & QRV

N/A

Mounting Size Thread³

3/8-24

Dimension D

2.81 in
71 mm

Dimension D₁

2.00 in
2.31 in
51 mm
59 mm

Dimension H

1.38 in
35 mm

Dimension L₂

0.75 in
19 mm

Dimension O⁴

0.19 in
1/8-27 in
1/8-27 mm
5 mm

Dimension O₁⁵

1/8-27

Dimension U₄

12.5 in
318 mm

Passage Area

0.019 in²
0.12 cm²

Hex Size

0.625 in
15.9 mm

Dimension D₂

0.50 in
13 mm

Dimension M

0.38 in
10 mm

Dimension N

0.16 in
4 mm

Maximum Speed⁶

4000 rpm

Maximum Pressure⁷

150 psi
10.3 bar

Weight

0.4 lb
0.2 kg

Manufacturer

Eaton-Airflex

¹ American National Pipe Thread
² Used to prevent the transmittal of stray electrical eddy current.
³ American National Standard for Unified Screw Threads.
⁴ American National Pipe Thread.
⁵ American National Pipe Thread.
⁶ Operation at maximum pressure and speed should be avoided. Refer to K-14 for operating parameters.
⁷ Operation at maximum pressure and speed should be avoided. Refer to K-14 for operating parameters.

General Description

The rotating seal is established by a non-metallic sealing ring, held against the rotorseal shaft by a light spring force. The sealing ring is designed so that media pressure acts on both of its ends to minimize the force on the sealing surface.

This design gives positive protection against leakage and compensates for seal wear. Ball bearings are used between the stationary and rotating ports to provide rigidity to the rotorseal assembly and to minimize the running torque.

Rotorseals are available with single, dual and triple passages, in a variety of sizes and designs, to provide the versatility needed to handle most requirements. Single passage rotorseals, in pneumatic installation, can be plumbed with a quick release valve at its inlet port to provide a convenient exhaust.

In most applications, the rotorseal is mounted to the end of a shaft. The shaft is rifle and cross drilled to provide a passageway for the media transmitted. It is important that the rotorseal's axis of rotation be concentric with the rotating member's axis of rotation to minimize rotorseal wobble.

To accommodate eccentricities, a flexible connection must be used between the rotorseal and supply. A rigid connection will tend to preload the rotorseal bearings. The flexible connection should not be installed taut and should include a union and 45º elbow.

The flexible connection should be attached to the rotorseal prior to fastening the rotorseal to the rotating body to avoid seal or bearing damage. The union connection to the supply line is made last.
In most applications, only one fluid is to be transmitted to a rotating assembly. This group of rotorseals will handle most medium volume, single passage requirements. External threads on the seal shaft and standard pipe threads on the inlet port make installations an easy job.

Note

Operation at maximum pressure and speed should be avoided. Refer to K-14 for operating parameters.
Furnished with 3/8-18 NPT to 1/4-18 NPT reducer bushing.

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	· Single Passage Rotorseals Mounting Dimensions

	· Single Passage Rotorseals - 4

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		Single Passage Rotorseals Component Diagram (PDF, 202KB)

Item # 145631E, Single Passage Rotorseals