MP PUMPS HTO SERIES
®
HTO 300 INSTALLATION AND SERVICE INSTRUCTIONS
This bulletin must be read completely before installing, operating, or servicing the pump.
WARNING:
If any of the items listed below are violated, serious injury or death from burns caused
by hot oil may occur.
• DO NOT perform service or maintenance when
the pumping system is pressurized or hot serious injury or death from burns caused by
hot oil may occur.
• DO NOT operate the pump in a manner that it
was not intended to be used.
• DO NOT install for use in an open environment
where people are present.
NOT
• DO
does not allow the pipe to expand and cause
the pump to be strained.
• DO NOT continue to operate the pumping
system when a known leak exists or the
system continues to smoke.
• DO NOT continue to operate the pump when
unusual noise or vibration occurs.
• DO NOT install or use near water where the
pumping system may come into contact with
water or is splashed by water.
install in a rigid piping system that
• DO NOT operate beyond the pressure or
temperature limits stated in the product
literature, see form 9001.
• DO NOT allow severe temperature changes
to occur in a short time period within the
pumping system.
• DO NOT mix different types or grades of oil
within the oil system.
NOT
• DO
heat transfer oil by the manufacturer.
• DO NOT exceed the maximum oil temperature
rated by the oil manufacturer at the hottest
point in the pumping system.
• DO NOT mount the pump such that high
piping loads exist on the pump flanges.
use an oil that is not a recommended
FORM 3065-B
MP PUMPS HTO SERIES
OPERATION AND MAINTENANCE
Thermal oil vapors leaking from a system can be
highly flammable.
Any system leak should be repaired immediately.
Do not insulate the pump or system piping with
porous flammable insulation. Fluid may wick,
decompose and spontaneously ignite.
Ideal mechanical seal life is 20,000 hours.
Reduced seal life may be experienced from
extreme conditions.
Recommended spare parts and service parts to
rebuild the HTO-120 are:
PART NO. DESCRIPTION QTY.
29822 DRIVE SLEEVE 1
26744 GASKET 1
30842 ISOLATOR 2
HTO 300 ASSEMBLY INSTRUCTIONS
At disassembly, check the impeller and other
wear items for unusual wear. Replace if
necessary.
When servicing the pump, care should be taken
that the pump has cooled to a sufficient
temperature to permit disassembly. The
product should be drained from the pump
housing and disposed in accordance with the
fluid manufacturer's recommendations.
Operating personnel should be warned to
exercise care and utilize eye and skin protection
when servicing the pump.
PART NO. DESCRIPTION QTY.
34933 SEAL ASSEMBLY 1
29825 GASKET 3
30841 O-RNG 1
Press the seal seat (part of #5) into the seal
1.
housing #4.
2. Set the drive sleeve #7 standing up on the
workbench with the threaded end up. Place
the seal housing #4 on the sleeve with the
seal seat facing up.
Lubricate the seal head's o-ring (part of #5)
3.
and slide it over the sleeve.
4. Install snap ring #6 into the groove on the
sleeve.
5. Install the pipe plug into the seal housing.
Use sealant on the threads.
6. Install the three gaskets #8, two graphite
isolators #9, and o-ring #10 over the drive
sleeve onto the seal housing.
Place the seal housing assembly fr
7.
into the adapter #13 and install 3 capscr
#3 through the seal housing and into the
que the capscr
or
adapter
5 ft-lbs. increments.
Apply Loctite onto the drive sleeve thr
8.
and install the impeller #14 by threading it
onto the sleeve. Make sure that the impeller
shoulders against the sleeve.
9. Position the gasket #15 onto the adapter and
install the housing #16 to the adapter using
eight capscrews #11 and lockwashers #12.
. T
ews to 20 ft-lbs. in
om step 6
ews
eads
Slide the fan clamp #2 onto the sleeve with
10.
fan blades closest to the seal housing. The
pump end assembly (Pumpak) is complete.
11. Pumpak assembly to the motor as follows:
Place 5/16x5/16x.5 key into the key slot
1.
of the motor shaft.
2. Slide the Pumpak onto the motor with
the shaft/key indexed to lineup with a
slot in the pump sleeve.
Install and tighten (4) 1/2"–13 capscr
3.
onto the motor flange with
40 ft-lbs. torque.
4. Reaching through the inlet of the pump
push the impeller back towar
motor until it stops up against the
carbon isolators.
While holding the impeller in this
5.
position, tighten the fasteners of the
fan clamp with 15 ft-lbs. tor
6. Rotate impeller to check for contact
ts.
with stationar
7. Install piping.
8. After wiring the motor, check rotation by
momentarily applying power and viewing
the rotation of the fan clamp. Viewed
from the motor end, the clamp should
otate in a clockwise direction.
r
y par
ds the
que.
ews
- 2 -
MP PUMPS HTO SERIES
APPLICATION AND INSTALLATION INSTRUCTIONS
Application assistance and technical
information can be obtained by calling
MP PUMPS at 586-293-8240.
The HTO Pump is designed for pumping high
temperature fluids that are non-corrosive,
non-volatile and have good lubricating qualities.
INSTALLATION AND START-UP
INSTALLATION
1. The pump must be installed in a horizontal
shaft position.
2. The housing may be rotated to a horizontal or
vertical discharge to fit the particular piping
installation.
3. Rigid and supported piping must be used
that will not strain the pump housing when
temperature changes are made during the
use of the pump.
4. The piping system must be free of foreign
material and moisture befor
5. Pipe thr
on the NPT flanges that is compatible with
the fluid being pumped and is rated for the
temperatur
6. The installation should permit adequate
circulation of air to provide proper cooling
of the motor and pump seal housing.
7. Do not install in a sealed enclosure or insulate
the pump adapter and motor. The motor
and/or pump seal may fail from excessive
heat.
8. A good installation will have an enclosure that
provides adequate air flow of ambient air to
the motor of the pump.
ead sealing compound must be used
e requir
ements.
e start-up.
The primary application for use is with heat
transfer oils.
It is the users' responsibility to determine the
pump and product compatibility with the
materials of construction.
START-UP
1. Follow all requirements and recommendations
from the heat transfer fluid manufacturer for
fill, start-up and use.
2. Check for leaks before insulating the piping
system.
3. Check for proper shaft rotation by jogging the
power and observing the fan clamp. Rotation
arrows are provided on pump housing.
4. The seal cavity inside the pump will internally
vent during fill and start-up.
5. A small amount of oil may leak from the seal
cavity at the shaft; this is normal for a new
installation and will stop after approximately
one hour
Do not allow the pump to run dr
6.
to operate the pump when it is noisy, vibrating,
or leaks are observed. These noticeable signs
give a war
the equipment and must be investigated to
avoid possible damage or injury from burns
caused by hot oil.
.
y, or continue
ning that something is wrong with
- 3 -
HOT OIL PUMP
ITEM PART NO. DESCRIPTION QTY.
1 30264 CAPSCREW STL 5/16-18 2
2 29833 COOLING FAN CLAMP DUCTILE IRON 1
3 21277 CAPSCREW S.S 3/8-16 3
4 29830 SEAL HOUSING – DUCTILE IRON 1
5 34933
6 29826
7 29822 DRIVE SLEEVE – STAINLESS STEEL 1
8 29825
9 30842 ISOLATOR 2
SEAL ASSEMBL
SNAP RING
GASKET
Y 1.5' – Type 2 1
1
3
ITEM PART NO. DESCRIPTION QTY.
10 30841 O-RING – VITON 1
11 41256 CAPSCREW STL 3/8-16 8
12 30626 LOCKWASHER STL 3/8 8
13 29828 ADAPTOR – DUCTILE IRON 1
30837
14
26744
15
16 26733 HOUSING – DUCTILE IRON 1
41479
17
18 30824 PIPE PLUG 1/8 N.P.T. (NOT SHOWN) 1
IMPELLER – 6.62 DIA – DUCTILE IRON
GASKET
. (NOT SHOWN)
PIPE PLUG 1/2 N.P
.T
1
1
2
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