1.0
INTRODUCTION
Throughout this manual there are a number of
HAZARD WARNINGS that must be read and
adhered to in order to prevent possible personal
injury and/or damage to the equipment. Three sig-
nal words "
DANGER
", "
WARNING
", and "
CAU-
TION
" are used to indicate the severity of the
hazard, and are preceded by the safety alert
symbol .
Denotes the most serious injury haz-
ard, and is used when serious injury
or death WILL result from misuse or
failure to follow specific instructions.
Used when serious injury or death
MAY result from misuse or failure to
follow specific instructions.
Used when injury or product/equip-
ment damage may result from misuse
or failure to follow specific instruc-
tions.
It is the responsibility and the duty of all person-
nel involved in the installation, operation and
maintenance of the equipment on which this de-
vice is used to fully understand the
,
, and
procedures by which hazards are to be
avoided.
2.0
OPERATION
2.1
Description
The Airflex single passage rotorseal is a
positive seal for introducing air under pressure
into a rotating shaft. The rotorseal
operates continuously or intermittently at high
speeds in either direction. The RH rotorseal
has been designed for large air
volume applications, available in five sizes
having inlet ports suitable for 3/4, 1, 1-1/4, 1-
1/2 and 2 inch pipe.
NOTE: Consult the Factory when contemplat-
ing the use of Airflex rotorseals with
mediums other than air.
2.2
How It Works
The rotating seal of the Airflex rotorseal
is established by a lapped surface on the
rotating carbon seal (5) that is held against the
lapped surface of the stationary shaft (7) by
spring (2) pressure. The high quality lapped
finish of the contacting surfaces and the ap-
plied contact pressure assure a good seal
from the stationary member to the rotating
member. Air can pass through the bore of
the stationary shaft and through the bore of
the rotating seal into the machinery shaft or
assembly.
2.3
Pressure and Speed Limits
Maximum operating pressure allowable in
standard RH rotorseals is 150 psig (10,4 bar).
Maximum speed limits are shown on Table 1.
Operation at maximum pressure combined
with maximum speed should be avoided.
Consult the factory or your Airflex Distributor
for specific application information.
TABLE 1 - MAXIMUM SPEEDS
Size
3/4
1
1-1/4
1-1/2
2
Max
RPM
1500
1200
1000
800
600
3.0
INSTALLATION
3.1
Mounting
The Airflex type RH rotorseal is designed for
flange mounting to the machinery shaft or as-
sembly. Refer to Figure 2 and Table 3 for
mounting dimensions.
3.1.1
Be sure the external rubber seal (12) is
properly seated in the rotorseal flange
groove before mounting.
3.1.2
Mount the rotorseal and torque the mounting
screws to the lubed value indicated in Table 2,
using an alternating crosswise pattern.
TABLE 3
MOUNTING FASTENER TORQUE
Size
3/4
1
1-1/4
1-1/2
2
Ft.-
Lb.
11
25
25
25
25
Nm
15
34
34
34
34
RS 9030
2
© Copyright Eaton Corp., 2002. All rights reserved.
(Revised: December 2002)
