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Mains Units

25 Frame plunger pump

2510

  • 75.7Flow, l/min
  • 138Pressure, bar
  • 1450Speed, rpm
  • 20.43Power, kW

50 Hz Rated at a motor speed for 50 Hz mains (UK, Europe, Africa, Australia, most of Asia).

Cat Pumps 25 Frame pump

Specification

Flow
75.7 l/min
Pressure
138 bar
Speed
1450 rpm
Absorbed power
20.43 kW
Plunger
25 mm
Shaft
Solid, Ø30 mm
Weight
36 kg

Data sheet (PDF, Cat Pumps)

Kits

Seal kits1

Part numberDescriptionPer pumpSuppliers
31280Seal Kit, standard NBR1 

Valves3

Part numberDescriptionPer pumpSuppliers
31285Valve kit, NBR (STD)2 
31385Valve kit, FPM (.0110)2 
76197Valve kit, EPDM (.0220)2 

Exploded view

Cat Pumps exploded view of the 25 Frame pump, with position numbers
Cat Pumps' drawing. The numbers match the positions in the parts list below. Open the picture to zoom in.

Parts list

Positions are the balloon numbers on Cat Pumps' exploded view.

PosPart numberDescriptionQty
5 126544 Screw, HHC Sems (M8 x 25)8
8 134966 Cover, Bearing2
10 27772 O-Ring, Bearing Cover-70D2
11 27771 Seal, Oil, Crankshaft2
15 26512 Bearing, Ball2
20 48613 Assembly, Rod, Connecting (Includes: Lockwasher, Washer, Screw)3
21 126562 Washer, Locking3
25 49795 Crankshaft, Dual-End (M38.5)1
32 43211 Cap, Oil Filler1
33 14177 O-Ring, Oil Filler Cap-70D1
36 129343 Gasket, Flat1
37 92241 Gauge, Bubble, Oil with Gasket-80D1
38 44428 Gasket, Flat, Oil Guage-80D1
39 27769 Dip Stick1
40 126544 Screw, HHC Sems (M8 x 25)8
48 25625 Plug, Drain (1/4" x 19 BSP)1
49 23170 O-Ring, Drain Plug-70D1
50 133582 Cover, Rear1
51 27767 O-Ring, Rear Cover-70D1
53 133609 Crankcase Assembly (Includes: 54)1
54 27488 Pin, Guide2
56 27790 Pan, Oil1
57 22981 Washer, Pan, Oil2
59 125824 Screw, HHC Sems (M6 x 16)2
64 27784 Pin, Crosshead3
65 48719 Rod, Plunger3
70 27785 Seal, Crankcase Oil3
75 110669 Slinger, Barrier3
88 110670 Washer, Keyhole3
90 48535 Plunger, Ceramic (M25 x 110)3
95 126549 Stud, Plunger Retainer (M7 x 103)3
96 20184 Backup Ring, Plunger Retainer3
97 14190 O-Ring, Plunger Retainer-70D3
98 44069 Gasket, Plunger Retainer3
99 44068 Retainer, Plunger (M7)3
100 49788 Retainer, Low-Pressure, Front3
100 49789 Retainer, Low-Pressure, Rear3
101 48487 Wick, Long Tab3
106 44086 Seal, Low-Pressure with SS-Spring3
107 48537 Washer, Low-Pressure3
110 48536 Manifold, Inlet1
112 11379 O-Ring, Inlet Manifold-70D3
117 126510 Screw, HSH (M12 x 35 and M12 x 40)4
126 48538 Adapter, Female3
127 44610 V-Packing6
128 48539 Adapter, Male3
141 48672 Spring, Coil18
142 48550 Spacer with Coil Springs3
155 17629 O-Ring, Spacer, Rear-80D3
156 28243 Backup Ring, Spacer, Rear3
158 28243 Backup Ring, Spacer, Front3
159 17629 O-Ring, Spacer, Front-80D3
162 48363 Backup Ring, Seat6
163 26142 O-Ring, Seat-80D6
164 48544 Seat6
166 45839 Valve6
167 45840 Spring6
168 110682 Retainer, Spring6
170 44794 Washer, Spring Retainer6
171 48689 Spring, Coil6
172 17667 O-Ring, Valve Plug-80D6
174 120693 Plug, Valve (120693 Includes O-Ring)6
185 48543 Manifold, Discharge1
188 126511 Screw, HSH (M12 x 80)6

Motor

A 4-pole motor of at least 20.43 kW drives this pump at 1450 rpm.

MotorkWrpmFrameClassA at 400 VSuppliers
RN 180La4 221465IEC 180LIE142  
RN 160Lc4 uprated 221450IEC 160LIE142  

The contactor and overload relay for each motor are on the motor's page.

Flange

The flange bolts the pump to the face of the motor. It depends on the motor's IEC frame.

  • IEC 160, 42 mm shaft (RN 160Lc4) No Cat Pumps flange listed for this motor.
  • IEC 180, 48 mm shaft (RN 180La4) No Cat Pumps flange listed for this motor.

Coupling

The flexible coupling joins the motor shaft to the pump shaft inside the flange.

  • IEC 160, 42 mm motor shaft No Cat Pumps coupling listed: you need one for a 42 mm motor shaft to 30 mm pump shaft.
  • IEC 180, 48 mm motor shaft No Cat Pumps coupling listed: you need one for a 48 mm motor shaft to 30 mm pump shaft.

Other Cat Pumps 25 Frame pumps

251125302530E2531253725602560BH25652565BH2565T13