OM-05450
GHS SERIES
PAGE F - 23
SEAL APPENDIX
Application Pa
rameters
Environmental Control
Less than
10,000 SSU
AND
Less than 100
fpm
AND
Less than 100
psi.
AND
Less than 150
F
No barrier liquid re
quired, but is still rec
ommended (for ex
tended seal life).
Greater than 150
psi.
OR
Thermally Sensi
tive
3
A pressurized barrier
liquid
1
is recom
mended.
Barrier at 25-50%
of pump discharge
pressure (minimum
25 psi.).
Greater than
300
F
A circulated barrier liq
uid
1
is required, unless
temperature can be
controlled with a seal
jacket.
Barrier at 25-50%
of pump discharge
pressure (minimum
25 psi.).
Mildly Abrasive
A circulated, pressur
ized barrier liquid
2
is
required.
Barrier liquid at
pressure to ensure
2-3 gal/hour flow
into process liquid.
1.
Select a clean, lubricating liquid that is
compatible with the pump construction
(iron or 316 SST).
2.
Select a clean, lubricating liquid that is
compatible with the pumped product
and with the pump construction (iron or
316 SST).
3.
A pressurized barrier liquid may not be
required if shaft surface speed is less
than 100 fpm.
Note: To calculate fpm (feet per minute), multiply
shaft diameter (in inches) by 3.14, then by rpm and
divide by 12.
