MP Pumps HTO 120 INSTALL - Manual (Page 3)

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:
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.
29781 DRIVE SLEEVE 1
25662 GASKET 1
29158 ISOLATOR 2
29774 LIP SEAL 1
29773 SEAL ASSEMBLY 1
29165 GASKET 3
29230 O-RING 1
HTO PUMP CROSS-SECTION AND DETAIL
DET. DESCRIPTION
1 IMPELLER – CAST IRON
2 SEAL ASSEMBLY 1”
3 HEX JAM NUT – S.S.
4 COOLING FAN CLAMP
5 CAPSCREW STL
6 GASKET - KLINGERSIL
7 CAPSCREW STL
8 O-RING - VITON
9 ADAPTOR – DUCTILE IRON
10 ISOLATOR – CARBON GRAPHITE
11 DRIVE SLEEVE – STAINLESS STEEL
12 SEAL HOUSING – DUCTILE IRON
13 LIP SEAL - VITON (CR#9937)
14 HOUSING – DUCTILE IRON
15 GASKET
16 PIPE PLUG S.S. 1/8 N.P.T.
17 LOCKWASHER S.S
18 STUD 3/8-16 X 1.63
20 HTO WARNING STICKER (NOT SHOWN)
22 PIPE PLUG 2” NPT
24 SNAP RING - STL
25 HEX NUT 3/8-16
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