06/03
51510 Self Priming Flexible Impeller Pump
Typical Applications
Installation
51510 Series
Self Priming Flexible Impeller Pump
Features
Body:
Brass
Impeller:
Neoprene
Seal:
Carbon/Ceramic Mechanical
Shaft:
Stainless Steel
Bearings:
Sealed Ball Bearings
Ports:
3/8" BSP or 3/8" NPT
Weight:
0.62kg (1.4lb)
Variations Available
Model
Description
51510-2001
3/8" BSP internal ports
51510-9001
3/8" NPT internal ports
Marine:
Engine Cooling, Bilge Pumping, Water Circulation
Industrial:
Circulating and Transferring, Velocity Mixing
Farming:
Pumping Water for Stock, Liquid Ballast Transfer
1. Pump may be mounted in any position. Intake and
discharge ports are determined by the shaft
rotation. Ensure pipe fittings are air-tight or pump
will not prime.
2. Pump can be belt or direct driven.
3. Pump can be operated up to 3600 rpm and up to
22 psi (1.5 bar) (see performance curve).
4. Pump will prime at low or high speeds, for a vertical
lift of 10 feet (3 m), a minimum speed of 1000 rpm
is required.
5. DO NOT RUN DRY for more than 30 seconds,
impeller damage will occur.
6. Operating temperature, 45°F to 180°F (7°C to
82°C).
7. Freezing conditions, drain pump by loosening end
cover screws.
Disassembly
1. Remove end cover screws, end cover and o-ring.
2. Remove impeller.
3. Remove dust shield and retaining ring.
4. Press out shaft/bearing assembly.
5. Press out mechanical seal.
Assembly
1. Press stationary part of mechanical seal into body.
2. Press rotary part of mechanical seal onto shaft.
3. Press shaft into body, do not allow shaft to touch
seal face.
4. Fit retaining ring and dust shield.
5. Lightly smear impeller bore with grease and fit
impeller.
6. Fit o-ring, end cover, and secure end cover screws.
Service Instructions
Do not press pulley or coupling on shaft
without supporting the other end, bearing
and/or seal damage will occur. Ensure belt
is of correct tension, ensure drive shafts and
pump shaft are aligned before tightening
coupling.
DO NOT pump Petroleum or fluids with a
flashpoint below 30°C (86°F).
