HP Hewlett Packard Water Pump GCBN22V User Manual

Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GGCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GCCV3V, GCCV22V and GCCV33V  
Please read and save this Repair Parts Manual. Read this manual and the General Operating Instructions carefully before attempting to assemble, install,  
operate or maintain the product described. Protect yourself and others by observing all safety information. The Safety Instructions are contained in the  
General Operating Instructions. Failure to comply with the safety instructions accompanying this product could result in personal injury and/or property  
damage! Retain instructions for future reference.  
Carbonator-Mount Rotary  
Close-Coupled External Gear Pumps  
Refer to form L-4082 for General Operating and Safety Instructions.  
Description  
Shertech self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of intermittent and  
light-duty industrial, marine, agricultural, and commercial applications, providing a nearly pulseless flow. Close-coupled  
models are available directly mounted to NEMA framed, AC ODP single-phase, thermally overload-protected motors or as  
pump heads only for custom installations. All models include a pressure relief valve. Motor-driven models are HP configured to  
handle up to 500 SSU at 100 psi (specific gravity of 1.0).  
Uses: For use with non-particulate and non-abrasive fluids compatible with pump wet-end construction component materials.  
• Flows to 4.4 GPM.  
• Max. RPM: 1725.  
• Max. PSI: 100.  
• Maximum viscosity of 500 SSU at 1725 RPM (max. input torque of 45 in.-lbs.).  
• Pumps can operate bi-directionally (reversible). In reverse operation, the pressure relief valve will not function.  
• Temperature ranges from -20° to 210° F.  
• Maximum working pressure: 150 PSI.  
CARBONATOR-MOUNT CAST IRON PUMPS (INTERMITTENT DUTY) – Specifically designed for use with oil-based fluids. Not  
to be used with water-based fluids. Pumps include steel spur gears with steel shafts and cast iron shaft support; standard  
pressure relief valves that can be ported internally or externally and a Viton mechanical carbon/ceramic-faced seal with  
temperature range of 32° to 280° F. Wet-end parts are constructed from cast iron, steel, stainless steel (302, 303 and/or 18-8),  
carbon, ceramic, and Viton.  
CARBONATOR-MOUNT BRONZE PUMPS (INTERMITTENT DUTY) – Excellent for water-based fluids. Feature 303 stainless steel  
shafts, carbon graphite bushings, and Buna-N mechanical carbon/ceramic faced seal with a temperature range of -20° to 210° F.  
Standard pressure relief valves can be ported internally or externally. Wet-end parts are constructed from bronze, brass,  
stainless steel (302, 303 and/or 18-8), graphite, carbon, and Buna-N.  
PUMP HEADS (NO MOTOR) – Close-coupled gear pump heads are designed to direct couple to carbonator pump motors  
(See NEMA Spec. MGI-18.739, Dimensions of Carbonator Motor mounting). The face of this gear pump has been machined to  
match the carbonator motor face. Pump and motor held together with a stainless steel beveled “V” band clamp. Coupling of  
shafts is done by mating the carbonator motor’s slot with the pump’s slot using the Oldham coupling (See Figure 2). This positive  
displacement characteristic offers a wide range of applications.  
NOTE: See Rotary Gear Pump Selection Guide in the Motor Manual for suggestions concerning installation, selection, options,  
and accessories.  
WARNING: Do not use to pump flammable or explosive fluids such as gasoline, fuel oil, kerosene, etc. Do not use in flammable  
and/or explosive atmospheres. When pumping hazardous or dangerous materials, use only in room or area designated for that  
purpose. For your protection, always wear proper clothing, eye protection, etc. in case of any malfunction. For proper handling techniques  
and cautions, contact your chemical supplier, insurance company and local agencies (fire dept., etc.). Failure to comply with this warning  
could result in personal injury and/or property damage.  
Form L-4083 (1/06)  
 
Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GCCV3V, GCCV22V and GCCV33V  
Performance  
GPM Pumping 10 Wt. Oil at 70° F (500 SSU)  
Bronze  
Models  
Cast Iron Port  
Models Size*  
Motor RPM Max. Input Suction Free Flow 20 PSI  
40 PSI 60 PSI 80 PSI 100 PSI  
HP  
Torque in.-lbs. Lift**  
GPM  
GPM  
GPM  
GPM  
GPM  
GPM  
Models with Motors  
GCBN22V GCCV22V  
GCBN33V GCCV33V  
Models without Motors  
Equipped  
1/3  
1/2  
Suggested  
1/4  
3/8  
1725  
1725  
45  
45  
3.2  
3.6  
2.2  
4.4  
2.1  
4.3  
2.0  
4.2  
1.8  
4
1.7  
3.8  
1.6  
3.6  
GCBN2V  
GCBN3V  
GCCV2V  
GCCV3V  
1/4  
3/8  
1/3*** 1725  
1/2*** 1725  
45  
45  
3.2  
3.6  
2.2  
4.4  
2.1  
4.3  
2.0  
4.2  
1.8  
4
1.7  
3.8  
1.6  
3.6  
Test data taken on SAE 10 wt. oil at 70° F (500 SSU).  
Performance in water will decrease by about 10%, and HP required will also be reduced by 10%. (Don’t use water with Cast Iron.)  
Pump performance when pump is new. As pump wears, the performance will decrease.  
(*) NPT inlet and outlet (in inches).  
(**) Suction lift requires wetted gears and primed seal chamber.  
(***) Motor not provided.  
NOTES: Pumps with motors are HP rated to handle up to 500 SSU at 100 PSI and specific gravity of 1.0.  
Max. PSI = 100  
Max. Viscosity = 500 SSU  
Max. RPM = 1725  
Max. Specific Gravity = 1.1 at 100 PSI, up to 1.6 at lower PSI & viscosity.  
Max. Input Torque = See chart above.  
Reverse Rotation = Pumps are equipped with pressure relief valves and can be run in reverse rotation; however, pressure relief valve will not  
function when pump is reversed unless pump relief valve cover is rotated 180°.  
The pump relationship between volume (GPM), pressure (PSI), speed (RPM) and horsepower is shown on performance chart in Shertech Motor  
Manual form L-4082. When pumping a more viscous liquid, a slower speed, a larger pipe size pump, and possibly a larger motor should be selected.  
Manufacturer reserves the right to change performance without notification.  
Form L-4083 (1/06)  
3
 
Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GCCV3V, GCCV22V and GCCV33V  
Carbonator-Mount Rotary  
Close-Coupled External Gear Pumps  
Specifications  
NEMA Min  
Motor Motor  
PUMP CONSTRUCTION (Wet End)  
AC  
Thermal  
Insulation Overload  
Port  
Pressure  
Relief  
Ship  
Wt.  
(lbs.)  
Frame  
HP Motor Motor Motor  
Motor MAX Size Body &  
O-Rings &  
Seals**  
Model Required Req Voltage Amps Frame Hz Class  
Protection Duty Bearings RPM  
*** Cover Gear Shaft Bushings Valve****  
Models with Motors  
GCBN22V 48Y  
GCBN33V 48Y  
GCCV22V 48Y  
GCCV33V 48Y  
1/3  
1/2 115/230 8.2/4.1 ODP 60  
1/3 115 6.0 ODP 60  
1/2 115/230 8.2/4.1 ODP 60  
115  
6.0  
ODP 60  
A
B
A
B
Yes  
Yes  
Yes  
Yes  
Cont. Sleeve 1725  
Cont. Ball 1725  
Cont. Sleeve 1725  
1/4  
3/8  
1/4  
3/8  
BZ  
BZ  
CI  
BZ 303 SS  
BZ 303 SS  
CG  
CG  
CI  
BR & SS  
BR & SS  
CRS & SS  
CRS & SS  
Buna Mech 19.8  
Buna Mech 22.8  
Viton Mech 19.3  
Viton Mech 22.3  
CRS  
CRS  
CRS  
CRS  
Cont. Ball  
1725  
CI  
CI  
Models without Motors  
GCBN2V* 48Y  
GCBN3V* 48Y  
GCCV2V* 48Y  
GCCV3V* 48Y  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1725  
1725  
1725  
1725  
1/4  
3/8  
1/4  
3/8  
BZ  
BZ  
CI  
BZ 303 SS  
BZ 303 SS  
CG  
CG  
CI  
BR & SS  
BR & SS  
CRS & SS  
CRS & SS  
Buna Mech  
Buna Mech  
Viton Mech  
Viton Mech  
4.3  
4.8  
4.0  
4.3  
CRS  
CRS  
CRS  
CRS  
CI  
CI  
BZ = Bronze BR = Brass CG = Carbon Graphite CI = Cast Iron CRS = Cold Rolled Steel ODP = Open Drip-Proof  
(*) Motor not provided.  
(**) In addition to elastomer noted, mechanical seal components have carbon on ceramic faces and 18-8 SS metal components.  
(***) NPT inlet and outlet (in inches).  
(****) Bronze models are made of brass and/or bronze, stainless steel (302, 303 and/or 18-8). Cast Iron models are made of cast iron, cold rolled steel  
and stainless steel (302, 303 and/or 18-8 SS).  
(†) Thermal overload protection reset may be automatic or manual.  
NOTES:48Y motor frame also referred to as carbonator motor.  
Motor base may be removable, movable or fixed.  
Motor may be split-phase or capacitor start.  
Motor driver subject to change without notice (refer to motor nameplate).  
Manufacturer reserves the right to change specifications without notification.  
Form L-4083 (1/06)  
4
 
Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GCCV3V, GCCV22V and GCCV33V  
Dimensions  
Port Width  
Inlet  
NPT Inlet  
Pressure  
and Outlet  
Relief Valve  
(On outlet side)  
Outlet  
Figure 1 - Dimensions  
Pump Direction  
Clockwise Rotation  
(When standing in front  
of the pump head)  
Dimensions  
Dimensions (in inches)  
Model  
A*  
B
C
D
E
F**  
G** H**  
I**  
J**  
K**  
L
M
Models with Motors  
GCBN22V, GCCV22V 1/4  
GCBN33V, GCCV33V 3/8  
Models without Motors  
GCBN2V, GCCV2V  
GCBN3V, GCCV3V  
129/32  
21/4  
27/16  
27/16  
3
3
69/16  
7
8
23/4  
23/4  
55/8  
55/8  
41/4  
41/4  
53/4  
53/4  
11/16  
11/16  
35/8  
35/8  
21/2  
21/2  
89/16  
1/4  
3/8  
129/32  
21/4  
-
-
3
3
69/16  
7
-
-
-
-
-
-
-
-
-
-
-
-
35/8  
35/8  
21/2  
21/2  
(*) NPT inlet and outlet (in inches).  
(**) This dimension may vary due to motor manufacturer’s specifications.  
NOTE: Dimensions have a tolerance of (+ or -) 1/8".  
Manufacturer reserves the right to change dimensions without notification.  
Form L-4083 (1/06)  
5
 
Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GCCV3V, GCCV22V and GCCV33V  
Carbonator-Mount Rotary  
Close-Coupled External Gear Pumps  
2. Open drip-proof motors are  
designed to be used in clean, dry  
locations with access to an adequate  
supply of cooling air.  
Check motor.  
It may be equipped  
with an automatic resetting thermal  
Int. Ret. Ring  
“V”Band Clamp  
Seal Seat Assy.  
protector and may restart unexpectedly  
(see specifications chart). Protector tripping  
is an indication of motor overloading as a  
result of operating the pump at too high a  
pressure (over 100 PSI), too high of viscosity,  
too high of specific gravity, excessively high  
or low voltage, inadequate wiring, incorrect  
motor connections, too small a motor  
(sized incorrectly, not enough HP), or a  
defective motor or pump.  
Oldham  
Coupling  
3. For outdoor installations, the motor  
must be protected by a cover that  
does not block air flow to and  
around the motor.  
Pump  
Shaft  
Motor  
Shaft  
4. The motor should be securely  
fastened to a rigid surface,  
preferably metallic. For rigidity,  
use largest bolts that will fit  
through the base holes.  
Ext.  
Ret.  
Ring  
Do not handle pump with wet hands  
or when standing in water. Failure to  
follow the General Safety Information  
and all warnings could result in fatal  
electrical shock!  
Hex. Head  
Clamp Screw  
Do not use to  
pump flammable or  
Figure 2 - “V” Band Clamp Assembly  
explosive fluids such as gasoline, fuel oil,  
kerosene, etc. Do not use in flammable  
and/or explosive atmospheres. When  
pumping hazardous or dangerous materials,  
use only in room or area designated for  
that purpose.  
Assembly  
ROTATION  
(If pump and motor are  
pre-assembled, skip assembly.)  
IN  
OUT  
1. Refer to Figures 2 and 3.  
For your protection, always wear proper  
clothing, eye protection, etc. in case of any  
malfunction. For proper handling techniques  
and cautions, contact your chemical supplier,  
insurance company and local agencies (fire  
dept., etc.). Failure to comply with this  
warning could result in personal injury  
and/or property damage.  
2. Remove the hex head machine  
screw from the ”V“ band clamp.  
Pressure relief valve  
(on discharge side)  
3. Slide the ”V“ band clamp away  
from the mating face (do not  
remove from the pump).  
Figure 3 - Rotation  
4. Match the pump mating face and  
motor mounting hub, while mating  
shafts and Oldham coupling (Ref.  
No. 24, Figure 7). NOTE: The small  
end of coupling goes into pump.  
Installation  
PIPING  
IMPORTANT: In any installations where  
property damage and/or personal  
injury can occur when the pump is  
not operating due to power outages,  
discharge line freezing, or any other  
reason, a back-up system(s) and/or  
warning system(s) should be used.  
SUCTION  
1. Avoid excessive lengths or number of  
fittings and bends in the suction line.  
Rotation: When looking at the motor  
shaft end, proper motor pump rotation  
is clockwise (CW). Flow is left to right  
(See Figure 3). Reverse the flow by  
rotating the pump 180˚. Standard mod-  
els are equipped with pressure relief  
valves. It is important that the relief  
valve be on the discharge side of the  
pump. NOTE: Pump can be rotated 360°.  
2. Attach suction line to suction inlet.  
3. It is recommended that same size  
pipe as pump ports be used or, in  
cases requiring lengthy piping, the  
next larger size pipe be used.  
In order to safely use this product, familiar-  
ize yourself with this pump and also with  
the liquid (chemical, etc.) that is going to  
be pumped through the unit. This pump is  
not suitable for many liquids.  
4. If suction lift is greater than what is  
indicated in the performance chart,  
attach a foot valve below liquid  
level at end of suction line to ensure  
positive priming. Also note: If fluid  
specific gravity is greater than 1.4 or  
viscosity greater than 500 SSU, a  
foot valve is also recommended.  
1. Locate the pump as close to the  
liquid source as possible, making  
the suction line as short and direct  
as possible.  
5. Slip the ”V“ band clamp over the  
pump and motor halves (See Figure  
2) and tighten the hex head clamp  
screw to hold the assembly together.  
Ambient  
temperature around  
motor should not exceed 104˚F (40˚C).  
6. Retighten the ”V“band clamp screw  
as necessary. Use thread sealant if  
screw keeps coming loose.  
5. If solid contaminates are suspected  
in a liquid, place a filter in the  
suction line.  
Form L-4083 (1/06)  
6
 
Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GCCV3V, GCCV22V and GCCV33V  
6. Be certain all suction piping connec-  
tions are airtight.  
loosen lock nut, then turn the set  
screw (Figure 4 & 7, Ref. No. 18) in  
(clockwise). Turning the set screw  
out (counterclockwise) will reduce  
the pressure setting. When desired  
pressure is achieved, tighten lock  
nut and reinstall protective cap.  
Operation  
Do not run pump dry,  
as permanent damage  
NOTE: Assure airtight pipe connections  
with the use of a pipe joint sealant.  
to the pump gears, seal, and bearings will  
result. Suction pressure should never be  
greater than the discharge pressure.  
DISCHARGE  
1. All pumps must be primed before  
start-up. Never operate a pump  
unless it is secured to a solid  
foundation.  
1. Attach discharge piping to the  
discharge outlet.  
8. The pressure relief valve can be  
converted to an external relief. This  
will allow the relief to dump back  
to tank and allow longer periods of  
relief without pump damage.  
However, this is not a full-line relief  
valve, and in cases where frequent  
extended relief valve operation is  
anticipated, a full-line size relief  
valve should be piped in the dis-  
charge line and connected either  
back to the tank or well down-  
stream of the pump suction inlet.  
Support pump and  
piping during assem-  
bly and after installation. Failure to do so may  
cause piping to break, pump to fail, motor  
bearing failures, etc. All of which can result  
in property damage and/or personal injury.  
2. Gear pumps are built to very close  
tolerances and this tolerance must  
not be altered. The liquids must,  
therefore, be free of all abrasives.  
Sand, silt, wettable powders, etc.  
must be avoided.  
NOTE: Should the pump need to be  
self-draining, the pump head should be  
mounted in the vertical position with  
the suction port facing down. When  
pumping high viscosity fluids, the  
vertical position can be used with the  
suction port facing up and the pump  
mounted under the source. Increasing  
the suction pipe size and eliminating  
bends and elbows also assists in pump-  
ing high viscosity fluids. Max. viscosity is  
500 SSU at 1725 RPM.  
NOTE: Cast iron pumps are for oil-based  
fluids only.  
3. When pumping a more viscous  
(beyond 500 SSU) liquid, a slower  
speed, a larger pipe size pump,  
and possibly a larger motor should  
be selected.  
Adjust pressure  
relief valve screw  
Protective  
NOTE: See performance chart for Max.  
Torque.  
cap  
Loosen  
4. Recheck motor rotation. Proper  
motor/pump rotation is clockwise  
(CW) looking at the motor shaft  
(See Figure 3).  
lock nut  
2. If a shut-off valve or handgun is  
required in discharge line, provide  
a pressure relief valve for pump  
protection.  
Figure 4 - Pressure  
Relief Valve Adjustment  
9. To convert the relief valve to exter-  
nal relief, remove the 1/4 NPT pipe  
plug from the pump cover (Figure 5  
& 7, Ref. No. 13) and discard. This  
plug is next to the relief valve. In  
the bottom of the 1/4 NPT hole,  
there is a second drilled and tapped  
5. On all models, the pressure relief  
valve is always on discharge side  
(See Figure 3).  
Shutting off  
discharge without  
providing pressure relief can cause extreme  
over-pressure which can result in pump  
and/or motor failure. Do not exceed 100 PSI  
pump or system pressure.  
PRESSURE RELIEF VALVE  
6. Standard model rotary gear pumps  
are supplied with a built-in pressure  
relief valve. The valve may be adjust-  
ed and used to set system operating  
pressure, or used as a system relief  
valve to prevent pump and motor  
damage that can occur when dis-  
charge line is closed off. This relief  
valve is not factory set. Extended  
operation (over one minute) under  
shut-off conditions could cause pump  
to overheat, leak, and damage itself.  
3. Operation under shut-off discharge  
conditions will overheat and  
damage pump.  
Optional  
external  
bypass plug  
NOTE: Globe valve or other restrictive  
valves should not be used as shut-off  
mechanism as they are restrictive in  
nature and will seriously affect pump  
performance.  
4. After all piping and controls (not  
supplied with unit) have been  
installed, unit is ready for operation.  
Remove and  
discard plug  
7. To increase the relief valve pressure  
setting, remove protective cap,  
Figure 5 - External Bypass Installation  
Form L-4083 (1/06)  
7
 
Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GCCV3V, GCCV22V and GCCV33V  
Carbonator-Mount Rotary  
Close-Coupled External Gear Pumps  
To store the pump, place a small quantity  
Operation (Continued)  
Maintenance  
of light oil or some other storage preser-  
vative compatible with your application  
in the pump and rotate the shaft very  
slowly to work the oil throughout the  
gears and the body.  
Make certain that the  
power source is discon-  
hole of 1/4 size. An optional exter-  
nal bypass plug (Figure 5 & 7, Ref.  
No. 14 included) should be inserted  
in this hole and bottomed out. The  
open 1/4 NPT port must now be  
piped back to the tank or well  
nected before attempting to service or disas-  
semble any components! If the power discon-  
nect is out of sight, lock it in the open position  
and tag to prevent application of power.  
DISASSEMBLY AND ASSEMBLY  
GENERAL  
downstream of the pump suction.  
Refer to Figure 7 for parts identification  
during disassembly and assembly.  
[Assumes pump is separated from  
motor and that Oldham coupling  
(Ref. No. 24) is removed.]  
Check the pump for proper operation  
daily, weekly, monthly, etc. If anything  
has changed (pump noise, motor noise,  
leaks, etc.) since the pump was new, the  
pump should be removed, examined and  
repaired if necessary. This is a difficult  
motor/pump to repair, therefore, only  
qualified electricians or service techni-  
cians should attempt to repair this unit.  
Improper repair and/or assembly can  
cause problems with the electric motor  
used with this unit. See General Safety  
Information.  
10. For operation of the pump with  
pressure relief valve in reverse rota-  
tion, the motor may be reversed,  
allowing for reverse rotation.  
Standard models are equipped with  
pressure relief valves and the pump  
can be run in reverse, however, the  
pressure relief valve will not func-  
tion. For continuous reverse rota-  
tion, the cover plate must be rotat-  
ed 180˚. This is accomplished by  
removing the six cover plate screws,  
rotating the cover plate, and reat-  
taching the screws. The relief valve  
should now be on the opposite side.  
This will allow operation of the  
pump with a functioning pressure  
relief valve in reverse rotation.  
1. Remove screws (Ref. No. 3) and  
cover (Ref. No. 2). Refer to  
INSPECTION procedures below.  
2. Lift out idler shaft (Ref. No. 8).  
3. Remove internal retaining ring (Ref.  
No. 12) from drive end of the pump  
body (Ref. No. 1) using TruArc-type  
internal snap-ring pliers.  
Retighten the ”V“ band clamp screw as  
necessary. Use Loctite or similar thread  
sealant if screw keeps coming loose.  
4. Carefully pry out ceramic seat (Ref.  
No. 11) and then seal (parts of  
seal seat assembly using a suitable  
hooked tool).  
Rotary gear pumps must be drained  
completely if subject to freezing  
temperature and should not be  
operated until temperature permits.  
Form L-4083 (1/06)  
8
 
Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GCCV3V, GCCV22V and GCCV33V  
NOTE: If seal rubber has become bond-  
ed to the shaft, use a pliers to remove  
the seal (Ref. No 10) and replace with a  
new seal assembly. Refer to INSPECTION  
procedures below.  
9. Assemble pump to motor. (See  
Assembly 3 through 5.)  
4. Install seal seat (Ref. No. 11), with  
water as a lubricant, on the O-ring  
with shiny white ceramic face facing  
10. All pumps must be primed before  
start-up and the seal chamber needs  
to be filled.  
the carbon seal (Ref. No. 10) without  
touching either of the seal faces.  
Scratching the seal faces will cause  
the seal to leak. Using anything  
other than water as a lubricant,  
when installing seal and seat, may  
cause seal to leak.  
5. Remove the seal assembly spring  
and metal seat.  
Do not run pump  
dry, as permanent  
damage to the pump gears, seal, and  
bearings will result. Suction pressure should  
never be greater than the discharge pressure.  
6. Remove external retaining ring (Ref.  
No. 9) from the shaft (Ref. No. 5)  
using external snap-ring pliers  
(212” legs).  
NOTE: The carbon and ceramic seal  
faces spin against each other providing  
for the functional seal. The seal ceramic  
seat o-ring is not the functional seal,  
but its purpose is to hold the seal  
ceramic seat in place.  
7. Remove the gear assembly and drive  
shaft (Ref. No. 4 & 5).  
Pump Inspection  
Inspect components for signs of  
excessive wear.  
5. Reinstall the snap ring (Ref. No. 12).  
Excessive wear of the pump will usually  
show up as degradation of performance.  
This can be seen by the flow dropping  
off under pressure, excessive noise  
and/or excessive wear inside the pump.  
Gear pump components are precision  
fit. When the gears are worn, so is the  
body, shafts, bushings or shaft pockets  
and housing. At that point, the pump  
head should be replaced.  
Relief Valve Disassembly and Assembly  
(Refer to Figure 7 for parts  
identification.)  
Figure 6 - Mechanical Seal Replacement  
Mechanical Seal Replacement (Refer to  
Figures 6 & 7 for parts identification.)  
1. Standard models are equipped with  
a pressure relief valve. Remove the  
1. Remove pump from motor, if not  
already done.  
relief valve cap (Ref. No. 15  
)
and  
O-ring Ref. No. 19)  
(
.
2. Remove snap ring (Ref. No. 12). Pry  
out seal seat (Ref. No. 11). Pull  
mechanical seal (Ref. No. 10) off shaft.  
(See Assembly 3 through 5.)  
2. Remove the spring (Ref. No. 22)  
and piston (Ref. No. 23). A worn  
or broken relief valve is a sign of  
excessive pump wear. The pump  
head should be replaced.  
8. Assemble the pump in reverse order  
of disassembly. Tighten cover screws  
(Ref. No. 3) in opposing sequence.  
As the cover (Ref. No. 2) is incre-  
mentally tightened, the shaft  
(Ref. No. 5) should be periodically  
turned. This ensures cover-to-body  
alignment and prevents binding  
of shaft.  
3. Reinstall new mechanical seal (Ref.  
No. 10) on drive shaft using water as  
a lubricant. Do not push on carbon  
face of new mechanical seal. Push  
with a hallowed out wood dowel or  
piece of cardboard.  
3. Assemble the relief valve in reverse  
order.  
Form L-4083 (1/06)  
9
 
Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GCCV3V, GCCV22V and GCCV33V  
Contact a Shertech Distributor  
(The factory only sells pumps and parts to distributors.)  
Please provide following information:  
-Model number  
-Serial number (if any)  
-Part description and number  
as shown in parts list  
Figure 7 - Repair Parts Illustration  
NOTE: Seals and the coupling components can be replaced. If the performance or  
function of the pump is impaired due to wear or other causes, it is strongly advised  
that the pump head be replaced. Note that seals and o-rings used in each material  
type are interchangeable. The Viton components from the cast iron models can be used  
in the bronze, and the Buna in the bronze models can be used in the cast iron models.  
Form L-4083 (1/06)  
10  
 
Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GCCV3V, GCCV22V and GCCV33V  
Repair Parts List  
Ref.  
No.  
Part No. For Model:  
GCBN2V GCBN3V GCCV2V GCCV3V  
Description  
GCBN22V GCBN33V GCCV22V GCCV33V Qty.  
1
Body  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
1
1
1
6
2
1
4
1
-
2
Opt.  
3
Cover (relief valve standard)  
Plain Cover (non-relief) ***  
Soc. Head Screw  
Gear  
NA  
NA  
NA  
NA  
23570S 23570S  
23574  
NA  
23574  
NA  
23570S  
NA  
23570S 23574  
23574  
NA  
NA  
NA  
NA  
NA  
4
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
5
Drive Shaft  
Bushing  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
6
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
7
O-ring (standard)  
O-ring Buna-N  
O-Ring Viton  
Idler Shaft  
18927  
NA  
18927  
NA  
19276  
18927  
NA  
19276  
18927  
NA  
18927  
NA  
18927  
NA  
19276  
18927  
NA  
19276  
18927  
NA  
Opt.  
Opt.  
8
19276  
NA  
19276  
NA  
19276  
NA  
19276  
NA  
-
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
1
1
1
-
9
Ext. Ret. Ring  
NA  
NA  
NA  
NA  
10 & 11 Mech. Seal & Seat Assy. (std.)  
24604  
NA  
24604  
NA  
24608  
24604  
NA  
24608  
24604  
NA  
24604  
NA  
24604  
NA  
24608  
24604  
NA  
24608  
24604  
NA  
Opt.  
Opt.  
12  
Buna Mech Seal & Seat Assy.  
Viton Mech Seal & Seat Assy.  
Int. Ret. Ring  
24608  
NA  
24608  
NA  
24608  
NA  
24608  
NA  
-
NA  
NA  
NA  
NA  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
13  
Pipe Plug**  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
14  
External Bypass Relief Plug*  
Relief Valve Cap  
Washer  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
15  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
16  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
17  
Hex Nut  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
18  
Set Screw - 18-8 SS  
O-ring  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
19  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
20  
O-ring Retainer  
O-ring  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
21  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
22  
Spring - 302 SS  
Piston - 303 SS  
Oldham Coupling  
V-Band Clamp  
Dowel Pin  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
23  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
NA  
24  
19564  
14050  
NA  
19564  
14050  
NA  
19564  
14050  
NA  
19564  
14050  
NA  
19564  
14050  
NA  
19564  
14050  
NA  
19564  
14050  
NA  
19564  
14050  
NA  
25  
26  
27  
Carbonator Motor  
Replacement Pump Head  
NA  
NA  
NA  
NA  
24649S  
24650S 24649S 24650S  
Opt.  
GCBN2V GCBN3V GCCV2V GCCV3V GCBN2V GCBN3V GCCV2V GCCV3V  
Mech. seal and seat sold as set only (Ref. Nos. 10 & 11) – carbon ceramic faces with18-8 SS components.  
When converting to a different seal/seat material, remember to order the o-ring (Ref. No. 7) of the same material.  
(*) For external relief only (not installed from manufacturer, loose in packaging)  
(**) For internal relief only (standard, installed from manufacturer)  
(***) Optional cover without pressure relief valve porting. Bronze covers (models with “S” suffix) come with bushings installed. Cast iron covers do not require bushings.  
(†) See Specifications chart for motor specifications.  
(NA) Not Available  
Form L-4083 (1/06)  
11  
 
Shertech Operating Instructions, Performance,  
Specifications and Parts Manual  
Bronze Models GCBN2V, GCBN3V, GCBN22V and GCBN33V  
Cast Iron Models GCCV2V, GGCCV3V, GCCV22V and GCCV33V  
Limited Warranty on  
Carbonator-Mount  
Rotary Close-Coupled External Gear Pumps  
Hypro warrants to the original purchaser of its products (the “Purchaser”) that such products will be free from defects in  
material and workmanship under normal use for the period of six (6) months, and accessories will be free from defects in  
material and workmanship under normal use for the period of ninety (90) days. Parts carry no warranty.  
“Normal use” does not include use in excess of recommended maximum speeds, pressures, vacuums and temperatures, or  
use requiring handling of fluids not compatible with component materials. This warranty does not cover freight damage,  
freezing damage, pump or motor damage from incorrect wiring (if equipped with motor), normal wear and tear, or damage  
caused by misapplication, fault, negligence, alterations, dry running pump, or repair that affects the performance or  
reliability of the product.  
THIS WARRANTY IS EXCLUSIVE. HYPRO MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED  
TO ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
Hypro’s obligation under this warranty is, at Hypro’s option, to either repair or replace the product upon return of the entire  
product to the Hypro factory in accordance with the return procedures set forth below. THIS IS THE EXCLUSIVE REMEDY FOR  
ANY BREACH OF WARRANTY.  
IN NO EVENT SHALL HYPRO BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND, WHETHER FOR  
BREACH OF ANY WARRANTY, FOR NEGLIGENCE, ON THE BASIS OF STRICT LIABILITY, OR OTHERWISE.  
distributor for product support.  
Distributors can obtain an RMA # and contact person’s name by contacting Hypro’s customer service at 800-471-0460.  
Return Procedures for Distributors  
All pumps or products must be flushed of any chemical (ref. OSHA Section 0910.1200 (d)(e)(f)(g)(h) and hazardous chemicals  
must be labeled before being shipped* to Hypro for service or warranty consideration. Hypro reserves the right to request a  
Material Safety Data sheet from the Purchaser for any pump or product Hypro deems necessary. Hypro reserves the right to  
“disposition as scrap” pumps or products returned without authorization and/or which contain unknown substances, or to  
charge for any and all costs incurred for chemical testing and proper disposal of components containing unknown substances.  
Hypro requests this in order to protect the environment and personnel from the hazards of handling unknown substances.  
Be prepared to give Hypro full details of the problem, including the following information:  
1. Model number, sale record/invoice, purchase date and from whom you purchased your pump.  
2. A brief description of the pump problem, including the following:  
• Liquid pumped. State the pH and any non-soluble  
materials, and give the generic or trade name.  
• Drive type (gas engine/electric motor; direct/belt drive;  
tractor PTO) and rpm of pump.  
• Temperature of the liquid and ambient environment.  
• Suction lift or vacuum (measured at the pump).  
• Discharge pressure.  
• Viscosity of fluid if other than water.  
• Specific gravity of fluid if other than water.  
• Elevation from the pump to the discharge point.  
• Size and material of suction and discharge line.  
• Size, type, and mesh of the suction strainer.  
• Abrasiveness or particulate size in fluids.  
Hypro may request additional information and may require a sketch to illustrate the problem. Distributors should contact the  
factory to receive a return material authorization before sending the product. All pumps returned for warranty work should  
be sent shipping charges prepaid to:  
[RMA# and Contact Person]  
HYPRO  
375 Fifth Avenue NW  
New Brighton, Minnesota 55112  
NOTE: Hypro reserves the right to “disposition as scrap” pumps or products returned without authorization.  
*Carriers, including U.S.P.S., airlines, UPS, ground freight, etc., require specific identification of any hazardous materials being shipped.  
Failure to do so may result in a substantial fine and/or prison term. Check with your shipping company for specific instructions.  
Form L-4083 (1/06)  
Printed in USA  
 

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