The Rowland Company
The Rowland Company
4900 North 20th St.
Philadelphia, PA 19144
Toll Free: (800) 925-8824
Phone: (215) 455-4900
Fax: (215) 455-8888
Email: rowland@rowland2.com
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Type BTA
The BTA rotorseal was designed for simultaneous transfer of as many as three different fluids. A mounting flange simplifies installation to the shaft end. Three 1/2-14 American National Pipe Thread inlet ports on the side of the stationary rotorseal body provide access to the concentric fluid passages. All three passages can discharge directly into the rotating shaft. However, a 1/2-14 port in the mounting flange can be used as an optional outlet for the outermost passage.
Unit of Measure

Specifications

Dimension D

 N/A 7.34 in186 mm

Dimension D1

 N/A 5.94 in151 mm

Dimension D30

 N/A 0.250 in6.4 mm

Dimension D31

 N/A 1.09 in28 mm

Dimension D48

 N/A 3.50 in89 mm

Dimension D49

 N/A 1.13 in29 mm

Dimension D50

 N/A 2.09 in53 mm

Dimension H

 N/A 3.63 in92 mm

Dimension H1

 N/A 2.06 in52 mm

Dimension H2

 N/A 4.125 in104.8 mm

Dimension H11

 N/A 4.88 in124 mm

Dimension H13

 N/A 3.14 in80 mm

Dimension H16

 N/A 1.25 in32 mm

Dimension L

 N/A 0.40 in10 mm

Dimension M

 N/A 0.59 in15 mm
Dimension O11 N/A 1/2-14

Dimension O3

 N/A 0.47 in12 mm
Dimension S2 N/A 1.063 in27.0 mm

Inner Passage Area

 N/A 0.196 in²1.26 cm²
Outer Passage Area3 N/A 0.307 in²1.98 cm²

Intermediate Passage Area

 N/A 0.260 in²1.68 cm²

Weight

 N/A 11 lb5 kg
Maximum Speed4 N/A 1000 rpm
Maximum Pressure5 N/A 150 psi10.3 bar

Manufacturer

 N/A Eaton-Airflex
  • 1 American National Pipe Thread
  • 2 Tolerance +0.000/-0.001 in (+0.00/-0.03 mm)
  • 3 Passage consists of sixteen 0.15 in (3,8 mm) diameter holes.
  • 4 Operation at maximum pressure and speed should be avoided. Refer to K-14 for operation parameters.
  • 5 Operation at maximum pressure and speed should be avoided. Refer to K-14 for operation parameters.