Appendix 1 - Gear Pump Gasket Adjustment For Temperature (Bronze Models Only) - Pentair Pool Products SHURflo GMBN2VA Operating Instructions, Performance, Specifications And Parts Manual

SHURflo Operating Instructions, Performance,
Specifications and Parts Manual
Bronze Models GMBN2VA, GMBN2VA3, GMBN2VA33, GMBN3VA, GMBN3VA4, GMBN3VA43, GMBN4VA,
GMBN4VA5, GMBN4VA53, GMBN5VB, GMBN5VB6, GMBN5VB63, GMBN6VC, GMBN6VC7, GMBN6VC73
Cast Iron Models GMCV2VA, GMCV2VA3, GMCV2VA33, GMCV3VA, GMCV3VA4, GMCN3VA43, GMCV4VA,
GMCV4VA5, GMCV4VA53, GMCN5VB, GMCV5VB6, GMCV5VB63, GMCV6VC, GMCV6VC7, GMCV6VC73

Appendix 1 - Gear Pump Gasket Adjustment for Temperature (Bronze Models only)

Gear pump is factory assembled to
operate within a temperature range
of 70° – 120° F (20° – 50° C). For
temperatures outside this range,
please see the table below for your
series and port size pump.
NOTE: Always refer to the original
owner's manual repair and mainte-
nance sections on pump disassembly
and assembly for more detailed
instructions.
Kit PN NPT Port Size
23952 Pumps with
3/8" ports
23954 Pumps with 1/2"
and 3/4" ports
23969 Pumps with 1"
and 1-1/4" ports
Gear Pump
Gasket Install
Assembly
Form L-4087 (12/09)
NOTE: When pumping fluids of high
viscosity (>500 SSU), the required torque
and HP can be reduced by adding a
gasket for increased gear clearance.
Gasket Installation Instructions (refer
to assembly diagram below):
1. Turn off power to pump, turn off
inlet and outlet valves, and relieve
pressure in lines.
2. Allow pump to cool.
Temp Range
Up to 120° F Use standard vellumoid/paper gasket
(50° C) as shipped (0.006" thick)*
120° F – 210° F Use optional thicker (0.015")
(50° C – 99° C) vellumoid/paper gasket
Up to 120° F Use standard vellumoid/paper gasket
(50° C) as shipped (0.006" thick)*
120° F – 210° F Use optional thicker (0.015")
(50° C – 99° C) vellumoid/paper gasket
Up to 70° F Use optional thinner (0.006")
(20° C) vellumoid/paper gasket
70° F – 120° F Use standard vellumoid/paper gasket
(20° C – 50° C) as shipped (0.010" thick)*
120° F – 210° F Use 2X optional thinner (for a total of
(50° C – 99° C) 0.012") vellumoid/paper gasket
*Standard Set-up
15
3. Remove cover screws (1), cover (2)
and gasket (3). Be sure to mark
proper orientation of cover and
pump body.
4. Replace gaskets (3) per instructions
listed in table.
5. Replace cover (2) and cover screws
(1) according to orientation
marked in step 3.
6. Tighten cover screws (1) in
sequence listed on diagram. Use
torque specifications listed in table.
Instructions
Bolt
Tightening
Sequence
Bolt Torque
23 in.-lbs.
(2.6 N-m)
23 in.-lbs.
(2.6 N-m)
75 in.-lbs.
(8.5 N-m)