CD75MA5
The Godwin Dri-Prime 2"/3" (50mm/75mm) CD75MA5 automatic priming centrifugal pump is the diesel equivalent of the gasoline-powered pump found on small dewatering jobs. Able to prime to 28 feet (8.5 meters) of suction lift from dry, the CD75MA5 also features indefinite dry-running capabilities due to the unique Godwin oil bath mechanical seal design. The model CD75MA5 offers flowrates to 370 gallons per minute (23 l/sec.), heads to 110 feet (33.5 meters), and capability of handling solids to 1-5/8" (41mm) in diameter. The CD75MA5 features a two cylinder diesel engine model generating over 11 horsepower (8.2 kW). Available on a handy site trolley or mounted on a highway trailer.
- Close coupled centrifugal pump with vacuum priming compressor mounted to a diesel engine. Also available in electric drive or as bare shaft pumpend.
- Lightweight cast aluminum construction with cast iron impeller. Also available in 316 stainless steel.
- Extensive application flexibility — will handle liquids with solids up to 1-5/8" (41mm) in diameter.
- Continuously operated “Godwin” air ejector priming device requiring no form of periodic adjustment or control.
- Dry running, oil bath mechanical seal with abrasion resistant solid silicon carbide interfaces.
- Solids handling ball type Non Return valve with renewable flexible rubber seat and quick release access feature.
- Compact unit mounted on site trolley or two-wheeled highway trailer, both incorporating integral overnight running fuel tank.
- Simple maintenance — normally limited to checking engine and seal cavity oil levels.
- Standard engine — Lister Petter PA2. Available with a variety of engines including Hatz, Perkins and Deutz. CD75MA5 Site Trolley Highway.
Performance Table
Diesel Set — Lister Petter LPA2, 11.5 hp @ 2500 rpm
Impeller Diameter — 6-3/4 inches (171 mm)
| Total Delivery Head - Feet |
| Total Suction |
10 | 15 | 20 | 25 | 30 |
| Head - Feet | Output - GPM | ||||
| 10 | 370 | 360 | 350 | 335 | 300 |
| 15 | 350 | 330 | 280 | 270 | 255 |
| 20 | 310 | 280 | 265 | 250 | 235 |
| 25 | 250 | 240 | 225 | 210 | 190 |
Performance data listed in table and curves based on water tests at sea level and 68° F (20° C). Larger diameter pipes may be required for maximum flows.
Specifications
Normal Operating Speed:
2500 rpm
Maximum Operating Temperature:
+176° F (80° C)
Maximum Working Pressure:
31 psi
Maximum Suction Pressure:
21.75 psi
Fuel Tank Capacity:
site trolley: 5 gallons
highway trailer: 10/20 gallons
Pipe Connections:
2" female NPT
3" male NPT
Solids Handling:
1-5/8" diameter
Pump Casing, Separation Tank and Non Return Valve:
Silicon aluminum, BS1490, grade LM25WP
Impeller:
Cast iron BS 1452 Grade 220
Shaft:
SG iron BS 2789 Grade 700/2
Non Return Valve, Ball and Seat:
High nitrile rubber
Mechanical Seal Faces:
Solid silicon carbide
CD75MA5 — Lister Petter LPA2, Site Trolley
Weight: 700 lbs.
Product Datasheets
