High Pressure Plunger Pump · Frame size 15 PFR 1731

Name: 1731
Brand: CAT PUMPS
SKU: 1731

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

Request this pump Data sheet (PDF) Spare parts

Technical specifications

Flow rate	50.1 l/min
Operating pressure	105 bar
Speed	1,470 min⁻¹
Inlet port	1" NPT
Discharge port	3/4" NPT
Shaft diameter	30 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.

8 kits bundle wearing parts of this pump ↓

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Parts list

Item	Part no.	Description	Qty
5	49651	Screw, HHC Sems (M8x20) [04/19]S	8
5	126540	Screw, HHC Sems (M8 x 20)STCP	8
8	134805	Cover, Bearing [04/19]ALE	2
9	855043	Shim, Split 2-Piece, Bearing Cover 0 - 2FBR	0-2
10	11340	O-Ring, Bearing Cover - 70DNBR	2
11	43495	Seal, Oil, Crankshaft - 70DNBR	2
12	855044	Shim, Split 2-Piece, Bearing Cover 0 - 2S	0-2
15	39060	Bearing, RollerSTL	2
20	48600	Rod, Connecting Assembly [10/01]TNM	3
25	670009	Crankshaft, Dual End (M25)FCM	1
32	43211	Cap, Oil FillerABS	1
33	14177	O-Ring, Oil Filler Cap - 70DNBR	1
37	92241	Gauge, Oil, Bubble with Gasket - 80D 1 - 2PC	1
38	44428	Gasket, Flat, Oil Gauge - 80DNBR	1
40	92542	Screw, HHC Sems (M6 x 20)S	4
40	126541	Screw, HHC Sems (M6 x 20)STCP	4
48	25625	Plug, Drain (1/4" x 19 BSP[M])STCP	1
49	23170	O-Ring, Drain Plug - 70DNBR	1
50	133576	Cover, Rear (See Tech Bulltin 118)ALE	1
51	44834	O-Ring, Rear Cover - 70DNBR	1
53	134889	Crankcase (Includes Guide Pins)ALE	1
54	27488	Pin, GuideS	2
56	44664	Pan, OilPOP	1
64	43507	Pin, CrossheadCM	3
65	48360	Rod, Plunger, ShortSSHS	3
65	49223	Rod, PlungerSBZ	3
69	126592	Washer, Oil SealSTCP	3
70	43500	Seal, Oil Crankcase - 80DNBR	3
75	43506	Slinger, BarrierS	3
90	48606	Plunger, Ceramic (M25 x 92)CC	3
95	89651	Stud, Plunger Retainer (M6 x 70)SS	3
96	43235	Backup Ring, Plunger RetainerPTFE	3
97	17399	O-Ring, Plunger Retainer - 80DNBR	3
98	44041	Gasket, Plunger Retainer (M12.5)SS	3
98	45891	Gasket, Plunger Retainer (M12.5)CU	3
99	44031	Retainer, Plunger (M6)SS	3
99	104360	Retainer, Plunger with StudS	3
100	899509	Retainer, Seal 2-PiecePOP	3
101	48716	Wick, Long Tab	3
106	44086	Seal, Low-Pressure with SS-SpringNBR	3
110	48608	Manifold, InletFBB	1
110	48683	Manifold, InletSS	1
112	14200	O-Ring, Seal Case - 70DNBR	3
117	87952	Screw, HSH (M10 x 55)S	4
117	126515	Screw, HSH (M10 x 55)STCP	4
126	48538	Adapter, FemaleBB	3
126	48669	Adapter, FemaleD	3
127	44610	V-Packing Model 3501, 3501C, V-Packing Model 3511, 3511C 9/6STG	6
128	48539	Adapter, MaleBB	3
128	113025	Adapter, MaleSS	3
141	48672	Spring, CoilSS	18
142	48550	Spacer with Coil SpringsBB	3
142	48670	Spacer with Coil SpringsSS	3
155	17629	O-Ring, Valve Plug - 80DNBR	6
156	28243	Back-up-Ring, V-Packing Spacer 3/6PTFE	6
162	48363	Backup-Ring, Valve SeatD	6
163	26142	O-Ring, Seat - 80DNBR	6
164	48596	SeatS	6
164	48688	SeatSS	6
166	48686	ValveSS	6
167	48687	Spring, ValveSS	6
168	44735	Retainer, SpringPVDF	6
170	44794	Washer, Spring RetainerSS	6
171	48689	Spring, CoilSS	6
172	17629	O-Ring, Valve Plug - 80DNBR	6
174	48597	Plug, ValveFBB	6
174	49294	Plug, ValveSS	6
185	48610	Manifold, DischargeFBB	1
185	48685	Manifold, DischargeSS	1
188	89981	Screw, HSH (M12 x 70)SS	6
188	126519	Screw, HSH (M12 x 70)STCP	6
250	855046	Protector, Shaft with 2 Screws PN 126544NY	1
250	855047	Protector, Shaft with 2 Screws PN 125753NY	1
–	6124	Gasket, Liquid (3 oz. / 0,1 l)	1
–	6139	Lubricant, Anti-Seize (8 oz) (Model 1531)	1
–	30264	Mount, Direct	1
–	30716	Key (8 x 7 x 43)	1
–	31360	Kit, Valve Standard NBR (Models 1530, 1530C)	2
–	34334	Kit, Oil Drain (3/8" x 24") (Not Shown) 1	1
–	126609	Assembly, Rail	1
–	816762	Head, Complete with NBR Seals and O-Rings (Model 1530)	1
–	816783	Head, Complete with NBR Seals and O-Rings (Model 1531)	1
–	828710	Protector, Oil Cap with Foam Gasket 1	1
–	6132	Oil, Crankcase, Bottle 1l	2

in the request list covered 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

31355

NBR (STD)Medium Nitrile (Buna-N)

contains 6 items · one kit per pump
Parts list
- 97 17399 O-Ring, Plungerhalter 3×
- 106 44086 Dichtung, Niederdruck 3×
- 112 14200 O-Ring, Saugstutzen 3×
- 127 44610 V-Packung 6×
- 155 17629 O-Ring, Distanzstück 6×
- 156 28243 Stützring, Distanzstück 6×
Seal kit

31455

FPM (0.0110)Fluorocarbon

contains 6 items · one kit per pump
Parts list
- 97 14160 O-Ring, Plungerhalter 3×
- 106 45846 Dichtung, Niederdruck 3×
- 112 11719 O-Ring, Saugstutzen 3×
- 127 44610 V-Packung 6×
- 155 14183 O-Ring, Distanzstück 6×
- 156 28243 Stützring, Distanzstück 6×
Seal kit

31753

EPDM (0.0220)Ethylene Propylene Diene Monomer

contains 6 items · one kit per pump
Parts list
- 97 46204 O-Ring, Plungerhalter 3×
- 106 49196 Dichtung, Niederdruck 3×
- 112 48907 O-Ring, Saugstutzen 3×
- 127 44610 V-Packung 6×
- 155 701491 O-Ring, Distanzstück 6×
- 156 28243 Stützring, Distanzstück 6×
Seal kit

76682

FFKM (0.0770)Perfluoroelastomer

contains 6 items · one kit per pump
Parts list
- 97 701715 O-Ring, Plungerhalter 3×
- 106 701944 Dichtung, Niederdruck 3×
- 112 701716 O-Ring, Saugstutzen 3×
- 127 703050 V-Packung 6×
- 155 702705 O-Ring, Distanzstück 6×
- 156 28243 Stützring, Distanzstück 6×

Valve kits

Valve kit

31271

NBR (STD)Medium Nitrile (Buna-N)

contains 9 items · 2 kits per pump
Parts list
- 162 48363 Stützring, Ventilsitz 3×
- 163 26142 O-Ring, Ventilsitz 3×
- 164 48596 Ventilsitz (Modelle 1530, 1530C) 3×
- 166 670108 Ventil 3×
- 166 48686 Ventil 3×
- 167 48687 Feder, Ventil 3×
- 168 44735 Federhalter, Ventil 3×
- 170 44794 Scheibe, Federhalter 3×
- 172 17629 O-Ring, Ventilstopfen 3×
Valve kit

31281

FPM (0.0110)Fluorocarbon

contains 9 items · 2 kits per pump
Parts list
- 162 48363 Stützring, Ventilsitz 3×
- 163 14330 O-Ring, Ventilsitz 3×
- 164 48596 Ventilsitz (Modelle 1530, 1530C) 3×
- 166 670108 Ventil 3×
- 166 48686 Ventil 3×
- 167 48687 Feder, Ventil 3×
- 168 44735 Federhalter, Ventil 3×
- 170 44794 Scheibe, Federhalter 3×
- 172 14183 O-Ring, Ventilstopfen 3×
Valve kit

31773

EPDM (0.0220)Ethylene Propylene Diene Monomer

contains 9 items · 2 kits per pump
Parts list
- 162 48363 Stützring, Ventilsitz 3×
- 163 701493 O-Ring, Ventilsitz 3×
- 164 48688 Ventilsitz (Modelle 1530, 1530C) 3×
- 166 670108 Ventil 3×
- 166 48686 Ventil 3×
- 167 48687 Feder, Ventil 3×
- 168 44735 Federhalter, Ventil 3×
- 170 44794 Scheibe, Federhalter 3×
- 172 701491 O-Ring, Ventilstopfen 3×
Valve kit

76360

FFKM (0.0770)Perfluoroelastomer

contains 9 items · 2 kits per pump
Parts list
- 162 48363 Stützring, Ventilsitz 3×
- 163 702808 O-Ring, Ventilsitz 3×
- 164 48688 Ventilsitz (Modelle 1530, 1530C) 3×
- 166 670108 Ventil 3×
- 166 48686 Ventil 3×
- 167 48687 Feder, Ventil 3×
- 168 44735 Federhalter, Ventil 3×
- 170 44794 Scheibe, Federhalter 3×
- 172 702705 O-Ring, Ventilstopfen 3×