CAT PUMPS
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CAT PUMPS
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High Pressure Plunger Pump · Frame size 8 PFR

781

This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with 316 stainless steel block-style manifolds, 316 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings.

Data sheet (PDF) Make an enquiry

Technical specifications

Flow rate 17 l/min
Operating pressure 345 bar
Speed 1,700 min⁻¹
Inlet port 1/2"
Discharge port 3/8"
Shaft diameter 24 mm
Material Stainless Steel

Downloads

CAD files

Spare parts

Click an item in the drawing or in the parts list to add it to your request list. We turn it into a quotation – no order is placed.

3 kits bundle wearing parts of this pump ↓

Parts list

ItemPart no.DescriptionQtyAdd to request list
230716Key (8 x 7 x 43)STL1
592538Screw, HHC, Sems (M6 x 16) (Model 2530E)S8
8133571Cover, BearingAL1
9815280Shim, Split, 2-Piece 2 - 4FBR
1012393O-Ring, Bearing Cover 2/1NBR2
1143222Seal, Oil, Crankshaft 2/1/2NBR1
1543221Bearing, RollerSTL2
2048863Rod, Connecting [6/02]TNM3
25119234Crankshaft - Single End (M24 w/60mm Extension) (781, 781K)FCM1
30133572Cover, Bearing, BlindAL1
31828710Protector, Oil Cap with Foam Gasket 1PE1
3244666Cap, Oil Filler, Domed-Gearbox ModelsRTP1
3314177O-Ring, Oil Filler Cap - 70DNBR1
3792241Gauge, Oil, Bubble with Gasket - 80D 1 - 21
3844428Gasket, Flat, Oil Gauge - 80DNBR1
4092538Screw, HHC, Sems (M6 x 16) (Model 2530E)S4
4825625Plug, Drain (1/4" x 19 BSP[M])STCP1
4923170O-Ring, Drain Plug - 70DNBR1
50133569Cover, RearAL1
5114047O-Ring, Rear Cover - 70DNBR1
53133593Crankcase (M10)AL1
5427488Pin, GuideS2
6443237Pin, CrossheadCM3
6548913Rod, Plunger, Short [5/02]SHS3
69126589Washer, Oil SealSTCP3
7043228Seal, Oil, CrankcaseNBR3
7543328Slinger, BarrierS3
8845697Washer, Keyhole (M18 x 10)S3
9045890Plunger (M14x72)CC3
9589653Stud, Plunger Retainer (M6x58)SS3
9643235Backup Ring, Plunger RetainerPTFE3
9717399O-Ring, Plunger Retainer - 80DNBR3
9844041Gasket, Plunger Retainer (M12.5)SS3
9949665Retainer, Plunger (M6)SS3
100995686Retainer, SealPVDF3
104701734O-Ring, Inlet Adapter - 70DNBR3
105701587Adapter, InletSS3
10648821Seal, LPS w/SS-SpgNBR3
11049205Manifold, Inlet/Discharge, Block-StyleSS1
112701595O-Ring, V.P. Spacer - 70DNBR3
11787952Screw, HSH (M10 x 55)S4
122701598Back-Up Ring, V.P. CylinderPTFE3
123701596O-Ring, V.P. Cylinder - 70DNBR3
124701589Cylinder V.P.SS3
126701682Adapter, FemaleSS3
12745895V-PackingSNG9
128701683Adapter, MaleSS3
13945156Plug, Inlet [1/2" NPT(M)]SS1
162701599Back-up-Ring, Valve SeatPTFE12
163701597O-Ring, Seat - 70DNBR12
164701591SeatSS6
166701751ValveSS6
16744056Spring, ValveSS6
16844565Retainer, Spring, DischargePVDF6
18549214Manifold, Valve, Block-StyleSS1
18887952Screw, HSH (M10 x 55)S14
25530243Mount, Direct (Belt-Drive Only)STZP1
26030645Assembly, Rail (5.02" See Dimensional Drawing)STZP1
260126610Mounting, Angle Rail (STZP R)STZP1
26530660Kit, Complete Mounting (Not Shown)1
28334334Kit, Oil Drain (3/8" x 24") (Not Shown) 11
299811483Pumpenkopf, komplett, Block-StyleSS1
370990663Assembly, Flushing, 5 Gal, 115V, 1.1 Amp, 1/2" NPT (Model 6821K) 11
5008071Gearbox - 1" Shaft (See individual Data Sheet) (Models 56G1, 56HSG1)1
–6119Lubricant, Anti-Seize (2 oz) (2531, 2531C)1
–14160O-Ring, Plunger Retainer - 80DFPM3
–30707Passfeder (M8 x 7 x 25)STL1
–44591Crankshaft, Single End (M15 w/34 mm extension) (Models 740 and 740G1)FCM1
–44947Crankshaft, Single End (M18.5 w/34 mm extension) (Models 760 and 760G1)FCM1
–46554Crankshaft, Single End (M24 w/34 mm extention) (Gearbox Only)FCM1
–49241Manifold, Inlet/Discharge, Block-Style Flushed (1/8" Flushed Port)SS1
–701912O-Ring, Adapter, Einlass - 75DFPM3
–701913O-Ring, V-Packung, Distanzstück - 75DFPM3
–701914O-Ring, V-Packung, Zylinder - 75DFPM3
–701915O-Ring, Ventilsitz - 75DFPM12
–704649Seal, LPS w/NIH-SpgST43
–704666V-PackingST49
–811485Head, Complete - W/NBR Seals and O-Rings (781K)SS1
–6132Oil, Crankcase, Bottle 1l1

in the request listcovered by a requested kit

Seal and valve kits

A kit bundles the wearing parts of one assembly. Selecting it highlights the items it covers in the drawing and the parts list – once requested, they stay marked.

Seal kits

  • Seal kit

    701883

    NBR (STD)Medium Nitrile (Buna-N)

    contains 8 items · one kit per pump

    Parts list
    • 9643235Stützring, Plungeralter3×
    • 9717399O-Ring, Plungeralter - 80D3×
    • 104701734O-Ring, Adapter, Einlass - 70D3×
    • 10648821Dichtung, Niederdruck m/SS-Feder3×
    • 112701595O-Ring, V-Packung, Distanzstück - 70D3×
    • 122701598Stützring, V-Packung, Zylinder3×
    • 123701596O-Ring, V-Packung, Zylinder - 70D3×
    • 12745895V-Packung9×

Valve kits

  • Valve kit

    701884

    NBR (STD)Medium Nitrile (Buna-N)

    contains 6 items · 2 kits per pump

    Parts list
    • 162701599Stützring, Ventilsitz6×
    • 163701597O-Ring, Ventilsitz - 70D6×
    • 164701591Ventilsitz3×
    • 166701751Ventil3×
    • 16744056Feder, Ventil3×
    • 16844565Federhalter, Ventil3×

  • Valve kit

    701921

    FPM (0.0110)Fluorocarbon

    contains 6 items · 2 kits per pump

    Parts list
    • 162701599Stützring, Ventilsitz6×
    • 163701915O-Ring, Ventilsitz - 75D6×
    • 164701591Ventilsitz3×
    • 166701751Ventil3×
    • 16744056Feder, Ventil3×
    • 16844565Federhalter, Ventil3×

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Speed
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