High Pressure Plunger Pump · Frame size 35 PFR

3545HS

Name: 3545HS
Brand: CAT PUMPS
SKU: 3545HS

This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with chrome-plated brass manifolds, 304 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings.

High-strength connecting rods and plunger rods allow high flow and operating pressure for intermittent use on this "HS" Series pump. Intermittent use is defined as operating the pump at the maximum rated flow and pressure for no more than 50% of the time in any given hour.

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Technical specifications

Flow rate	190 l/min
Operating pressure	103 bar
Speed	850 min⁻¹
Inlet port	1 1/2"
Discharge port	1"
Shaft diameter	35 mm
Material	Brass

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 ↓

Skip the drawing, go to the parts list

Parts list

Item	Part no.	Description	Qty
5	96049	Screw, HHC Sems (M10x25)S	8
8	134604	Cover, Bearing [06/18]ALE	2
9	815279	Shim, Split, 2-Piece 0 - 2FBR	4
10	12398	O-Ring, Bearing Cover - 70DNBR	2
11	13296	Seal, Oil, Crankshaft 0 - 2NBR	2
12	855049	Shim, Split, 2-Piece 0 - 2S	0-2
15	29326	Bearing, RollerSTL	2
20	126725	Rod, Connecting Assembly (Includes: 21, 22, 23) (Model 3521DHS)BZ	3
21	126749	Washer, Locking (M10)STCP	6
22	126593	Washer, Flat (M10.5)STCP	6
23	122045	Screw, HH (M10x55)STZP	6
25	29325	Crankshaft, Dual End (M48)FCM	1
31	828710	Protector, Oil Cap with Foam Gasket 1PE	1
32	43211	Cap, Oil FillerABS	1
33	14177	O-Ring, Oil Filler Cap - 70DNBR	1
34	126743	Bolt, Eye (M12x1.75) (For Lifting Pump Only)STCP	1
37	92241	Gauge, Oil, Bubble with Gasket - 80D 1 - 2PC	1
38	44428	Gasket, Flat, Oil Gauge - 80DNBR	1
40	125753	Screw, HHC, Sems (M8 x 25) (Model 2530E)S	8
48	25625	Plug, Drain (1/4" x 19 BSP[M])STCP	1
49	23170	O-Ring, Drain Plug - 70DNBR	1
50	45936	Cover, Rear (See Tech Bulltin 118)AL	1
51	16612	O-Ring, Cover - 70DNBR	1
53	134784	Crankcase Assembly (Includes 54)ALE	1
54	27488	Pin, GuideS	2
56	27790	Pan, OilPOP	1
59	92538	Screw, HHC, Sems (M6 x 16) (Model 2530E)S	2
64	43864	Pin, CrossheadCM	3
65	49166	Rod, Plunger (Model 3521DHS)SSHB	3
69	126587	Washer, Oil SealSTCP	3
70	100488	Seal, Oil, CrankcaseNBRS	3
75	43865	Slinger, BarrierS	3
88	45676	Washer, Keyhole (M16)S	3
90	46806	Plunger (M45 x 145)CC	3
95	89778	Stud, Plunger Retainer (M10x135)SS	3
96	20189	Back-up-Ring, Plunger RetainerPTFE	3
97	11345	O-Ring, Plunger Retainer - 70DNBR	3
98	44085	Gasket, Plunger Retainer (M7) Model 3501, 3501C, Gasket, Plunger Retainer (M10) Model 3511, 3511CSS	3
99	44084	Retainer, Plunger (M10)SS	3
100	44119	Retainer, Seal, RearPPG	3
106	46809	Seal, Low-Pressure with S-SpringNBR	3
106	48384	Seal, Low-Pressure, with SS-SpringNBR	3
107	46811	Spacer, Low-Pressure SealBB	3
107	48380	Spacer, Low-Pressure SealD	3
110	48375	Manifold, InletSS	1
110	49482	Manifold, InletBBCP	1
110	49994	Manifold, InletNAB	1
112	18688	O-Ring, Inlet Manifold - 70DNBR	3
117	44585	Screw, HSH (M14x40)S	4
126	46812	Adapter, FemaleBB	3
126	48383	Adapter, FemaleD	3
127	46813	V-PackingSTG S	6
128	46814	Adapter, MaleBB	3
128	48386	Adapter, MaleSS	3
128	49319	Adapter, MaleNAB	3
141	49483	Spring, Coil, LargeSS	3
155	17784	O-Ring, V-Packing Spacer - 80DNBR	3
157	49484	Spacer, V-PackingBB	3
157	49506	Spacer, V-PackingSS	3
157	49507	Spacer, V-PackingNAB	3
159	17784	O-Ring, V-Packing Spacer - 80DNBR	3
163	26143	O-Ring, Seat - 80DNBR	6
164	46822	SeatS	6
164	48393	Seat, SteppedSS	6
166	43932	ValveS	6
166	44108	ValveSS	6
167	44109	Spring, ValveSS	6
168	44728	Retainer, SpringPVDF	6
170	44729	Washer, Spring RetainerSS	6
171	44644	Coil Spring (70kg), Valve PlugSS	6
172	89827	O-Ring, Valve Plug - 90DNBR	6
173	48364	Backup-Ring, Valve PlugD	6
174	44643	Plug, Valve [02/06]NAB	6
174	46444	Plug, Valve [02/06]FBB	6
174	49300	Plug, ValveSSD	6
185	49302	Manifold, DischargeSSD	1
185	49309	Manifold, DischargeNAB	1
185	49486	Manifold, DischargeBBCP	1
188	89981	Screw, HSH (M12 x 70)S	8
250	855042	Protector, Shaft with Two (2) Screws, Lockwashers and WashersNY	1
–	6124	Gasket, Liquid (3 oz. / 0,1 l)	1
–	6139	Lubricant, Anti-Seize (8 oz) (Model 1531)	1
–	30696	Reverse Pliers (Not Shown)	1
–	30742	Passfeder, M10 x 8 x 70	1
–	32273	Crankcase Oil Seal Removal and Installation Kit (Not Shown)	1
–	33834	Kit, Seal - Standard - NBR (Models 3541DHS, 3541CHS, 3547HS)	1
–	33835	Kit, Valve - Standard - NBR (Models 3541DHS, 3541CHS, 3547HS)	2
–	34018	Mount, Direct (STZP R)	1
–	34314	Kit, Oil Drain (3/8" x 48") (Not Shown)	1
–	49304	Manifold, Inlet, Flushed (Model 3541CHS)SS	1
–	80540	Screw, Adjusting (M12 x 100) 2	1
–	126611	Mount, Rail Assembly (STZP R)	1
–	818371	Head, Complete with NBR Seals and O-Rings (Model 3541DHS)	1
–	818428	Head, Complete with NBR Seals and O-Rings (Model 3545HS)	1
–	818575	Head, Complete with NBR Seals and O-Rings (Model 3547HS)	1
–	819000	Assembly, Crankcase, Cast Iron Conversion (Not Shown) 1	1
–	6133	Oil, Crankcase, Can 4l	1

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
33234
NBR (STD)Medium Nitrile (Buna-N)
contains 6 items · one kit per pump
Parts list
- 9711345O-Ring, Plungerhalter3×
- 10646809Dichtung, Niederdruck (3545HS)3×
- 11218688O-Ring, Saugstutzen3×
- 12746813V-Packung6×
- 15517784O-Ring, Distanzstück, V-Packung3×
- 15917784O-Ring, Distanzstück, V-Packung3×
Seal kit
31261
FPM (0.0110)Fluorocarbon
contains 6 items · one kit per pump
Parts list
- 9711375O-Ring, Plungerhalter3×
- 106702013Dichtung, Niederdruck (3545HS)3×
- 11211739O-Ring, Saugstutzen3×
- 12746813V-Packung6×
- 15520138O-Ring, Distanzstück, V-Packung3×
- 15920138O-Ring, Distanzstück, V-Packung3×
Seal kit
33223
EPDM (0.0220)Ethylene Propylene Diene Monomer
contains 6 items · one kit per pump
Parts list
- 97701490O-Ring, Plungerhalter3×
- 10646945Dichtung, Niederdruck (3545HS)3×
- 112701659O-Ring, Saugstutzen3×
- 12746813V-Packung6×
- 155701658O-Ring, Distanzstück, V-Packung3×
- 159701658O-Ring, Distanzstück, V-Packung3×
Seal kit
76615
FFKM (0.0770)Perfluoroelastomer
contains 6 items · one kit per pump
Parts list
- 97702961O-Ring, Plungerhalter3×
- 106703296Dichtung, Niederdruck (3545HS)3×
- 112704172O-Ring, Saugstutzen3×
- 12746813V-Packung6×
- 155703292O-Ring, Distanzstück, V-Packung3×
- 159703292O-Ring, Distanzstück, V-Packung3×

Valve kits

Valve kit
33235
NBR (STD)Medium Nitrile (Buna-N)
contains 8 items · 2 kits per pump
Parts list
- 16326143O-Ring, Ventilsitz3×
- 16446822Ventilsitz (3545HS)3×
- 16643932Ventil (3545HS)3×
- 16744109Feder, Ventil3×
- 16844728Federhalter, Ventil3×
- 17044729Scheibe, Federhalter3×
- 17289827O-Ring, Ventilstopfen3×
- 17348364Stützring, Ventilstopfen3×
Valve kit
31262
FPM (0.0110)Fluorocarbon
contains 8 items · 2 kits per pump
Parts list
- 16314331O-Ring, Ventilsitz3×
- 164483933×
- 16644108Valve3×
- 16744109Feder, Ventil3×
- 16844728Federhalter, Ventil3×
- 17044729Scheibe, Federhalter3×
- 17211747O-Ring, Ventilstopfen3×
- 17348364Stützring, Ventilstopfen3×
Valve kit
31235
EPDM (0.0220)Ethylene Propylene Diene Monomer
contains 9 items · 2 kits per pump
Parts list
- 163171660O-Ring, Ventilsitz3×
- 163701660O-Ring, Valve Seat3×
- 16446822Seat (3545HS)3×
- 16643932Valve (3545HS)3×
- 16744109Feder, Ventil3×
- 16844728Federhalter, Ventil3×
- 17044729Scheibe, Federhalter3×
- 172701494O-Ring, Ventilstopfen3×
- 17348364Stützring, Ventilstopfen3×
Valve kit
76636
FFKM (0.0770)Perfluoroelastomer
contains 8 items · 2 kits per pump
Parts list
- 163703293O-Ring, Ventilsitz3×
- 164483933×
- 16644108Valve3×
- 16744109Feder, Ventil3×
- 16844728Federhalter, Ventil3×
- 17044729Scheibe, Federhalter3×
- 172703169O-Ring, Ventilstopfen3×
- 17348364Stützring, Ventilstopfen3×