High Pressure Plunger Pump · Frame size 35 PFR 3507HS

Name: 3507HS
Brand: CAT PUMPS
SKU: 3507HS

This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with nickel aluminum bronze 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	38 l/min
Operating pressure	345 bar
Speed	915 min⁻¹
Inlet port	1 1/2" NPT(F)
Discharge port	3/4" NPT(F)
Shaft diameter	35 mm
Material	Nickel-Aluminum-Bronze

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.

6 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
10	12398	O-Ring, Bearing Cover - 70DNBR	2
11	13296	Seal, Oil, Crankshaft 0 - 2NBR	2
12	855049	Shim, Split, 2-Piece 0 - 2S
15	29326	Bearing, RollerSTL	2
20	126725	Rod, Connecting Assembly (Includes: 21, 22, 23) (Model 3521DHS)BZ	3
21	126749	Washer, Locking (M10)STCP	3
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)ALE	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	49167	Rod, PlungerSSHB	3
69	126587	Washer, Oil SealSTCP	3
70	100488	Seal, Oil, CrankcaseNBRS	3
75	43506	Slinger, BarrierS	3
88	45675	Washer, KeyholeS	3
90	43945	Plunger (M20x145) Model 3501,3501C, Plunger (M25x145) Model 3511, 3511CCC	3
95	89779	Stud, Retainer (M7x123) Model 3501, 3501C, Stud, Retainer (M10x135) Model 3511, 3511CS	3
96	20184	Backup Ring, Plunger RetainerPTFE	3
97	14190	O-Ring, Plunger Retainer - 70DNBR	3
98	44069	Gasket, Plunger Retainer (M7) Model 3501, 3501C, Gasket, Plunger Retainer (M10) Model 3511, 3511CSS	3
99	44068	Retainer, Plunger (M7) [7/02]SS	3
100	814279	Retainer, Seal, 2-PiecePVDF	3
101	44095	Wick, Long Tab	3
104	43875	O-Ring, Inlet Adapter - 70DNBR	3
105	44073	Adapter, Low-Pressure SealNAB	3
106	44071	Seal, Low-Pressure with SS - SpringNBR	3
107	44074	Washer, Low-Pressure SealSS	3
110	44206	Manifold, InletNAB	1
112	11379	O-Ring, Inlet Manifold - 70DNBR	3
117	44585	Screw, HSH (M14x40)S	4
123	12391	O-Ring, V-Packing Cylinder - 70DNBR	3
124	44075	Cylinder, V-PackingNAB	3
126	44076	Adapter, FemaleNAB	3
127	44607	V-Packing Model 3501, 3501C, V-Packing Model 3511, 3511C 9/6STG	9
128	44077	Adapter, MaleNAB	3
155	132961	O-Ring, V-Packing Spacer 3/6NBR	6
156	28675	Back-up-Ring, V-Packing Spacer 3/6PTFE	6
157	46668	Spacer, V-PackingSS	3
162	21985	Backup Ring, SeatPTFE	6
163	26089	O-Ring, Seat - 80DNBR	6
164	44080	SeatSS	6
166	44081	ValveSS	6
167	44082	SpringSS	6
168	44735	Retainer, SpringPVDF	6
170	44794	Washer, Spring RetainerSS	6
171	44793	Spring, Coil, Valve PlugSS	6
172	15853	O-Ring, Valve Plug - 70DNBR	6
173	20224	Back-up-Ring, Valve PlugPTFE	6
174	44795	Plug, ValveNAB	6
175	87951	Screw, HSH (M10x30)S	36
185	46561	Manifold, Discharge [10/99]NAB	1
188	89981	Screw, HSH (M12 x 70)S	8
250	855042	Protector, Shaft with Two (2) Screws, Lockwashers and WashersPOP	1
–	6124	Gasket, Liquid (3 oz. / 0,1 l)	1
–	6139	Lubricant, Anti-Seize (8 oz) (Model 1531)	1
–	30278	Oiler (1 oz) (Not Shown) 3	1
–	30696	Reverse Pliers (Not Shown)	1
–	32273	Crankcase Oil Seal Removal and Installation Kit (Not Shown)	1
–	34018	Mount, Direct (STZP R)	1
–	34021	Key (M10 x 8 x 70) 1	1
–	34039	Mount, Direct (S) 1	1
–	34314	Kit, Oil Drain (3/8" x 48") (Not Shown)	1
–	76514	Mount, Rail Assembly (S) (Includes: 34039) 1	1
–	76795	Plug, Valve with 1/4" NPT(F) (Not Shown)	1
–	80540	Screw, Adjusting (M12 x 100) 2	2
–	92674	Mount, Rail Assembly (STZP R) (Includes: 34018)	1
–	125970	Manifold, Inlet, Flushed (1/4" Inlet Port) 3507C, 3517CNAB	1
–	816755	Head, Complete with NBR Seals and O-Rings (Model 3507HS)	1
–	819000	Assembly, Crankcase, Cast Iron Conversion (Not Shown) 1	1
–	990013	Hub, "B", 35 mm (STL) 1	1
–	6133	Oil, Crankcase, Can 4l	1

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

31037

NBR (STD)Medium Nitrile (Buna-N)

contains 9 items · one kit per pump
Parts list
- 97 14190 O-Ring, Plungerhalter (3507,3507C) 3×
- 104 43875 O-Ring, Adapter 3×
- 106 44071 Dichtung, Niederdruck (3507,3507C) 3×
- 112 11379 O-Ring, Saugstutzen 3×
- 123 12391 O-Ring, V-Packung, Zylinder 3×
- 127 44607 V-Packung (3507,3507C) 9×
- 155 17622 O-Ring, Distanzstück, V-Packung (3507,3507C) 6×
- 155 132961 O-Ring, V-Packing Spacer 6×
- 156 28675 Stützring, Distanzstück, V-Packung (3507,3507C) 6×
Seal kit

33265

FPM (0.0110)Fluorocarbon

contains 8 items · one kit per pump
Parts list
- 97 14161 O-Ring, Plungerhalter (3507,3507C) 3×
- 104 44826 O-Ring, Adapter 3×
- 106 44381 Dichtung, Niederdruck (3507,3507C) 3×
- 112 14183 O-Ring, Saugstutzen 3×
- 123 13266 O-Ring, V-Packung, Zylinder 3×
- 127 44607 V-Packung (3507,3507C) 9×
- 155 11719 O-Ring, Distanzstück, V-Packung (3507,3507C) 6×
- 156 28675 Stützring, Distanzstück, V-Packung (3507,3507C) 6×
Seal kit

76579

EPDM (0.0220)Ethylene Propylene Diene Monomer

contains 8 items · one kit per pump
Parts list
- 97 48239 O-Ring, Plungerhalter (3507,3507C) 3×
- 104 701656 O-Ring, Adapter 3×
- 106 701974 Dichtung, Niederdruck (3507,3507C) 3×
- 112 701491 O-Ring, Saugstutzen 3×
- 123 701657 O-Ring, V-Packung, Zylinder 3×
- 127 44607 V-Packung (3507,3507C) 9×
- 155 701654 O-Ring, Distanzstück, V-Packung (3507,3507C) 6×
- 156 28675 Stützring, Distanzstück, V-Packung (3507,3507C) 6×

Valve kits

Valve kit

34151

NBR (STD)Medium Nitrile (Buna-N)

contains 10 items · 2 kits per pump
Parts list
- 162 21985 Stützring, Ventilsitz 3×
- 163 26089 O-Ring, Ventilsitz 3×
- 164 44080 Ventilsitz 3×
- 166 44081 Ventil 3×
- 167 44082 Feder, Ventil 3×
- 168 44735 Federhalter, Ventil 3×
- 170 44794 Scheibe, Federhalter 3×
- 172 15853 O-Ring, Ventilstopfen 3×
- 172 89827 O-Ring, Ventilstopfen 3×
- 173 20224 Stützring, Ventilstopfen 3×
Valve kit

701798

FPM (0.0110)Fluorocarbon

contains 10 items · 2 kits per pump
Parts list
- 162 21985 Stützring, Ventilsitz 3×
- 163 11377 O-Ring, Ventilsitz 3×
- 164 44080 Ventilsitz 3×
- 166 44081 Ventil 3×
- 167 44082 Feder, Ventil 3×
- 168 44735 Federhalter, Ventil 3×
- 170 44794 Scheibe, Federhalter 3×
- 172 11720 O-Ring, Ventilstopfen 3×
- 172 11747 O-Ring, Ventilstopfen 3×
- 173 20224 Stützring, Ventilstopfen 3×
Valve kit

701799

EPDM (0.0220)Ethylene Propylene Diene Monomer

contains 9 items · 2 kits per pump
Parts list
- 162 21985 Stützring, Ventilsitz 3×
- 163 46647 O-Ring, Ventilsitz 3×
- 164 44080 Ventilsitz 3×
- 166 44081 Ventil 3×
- 167 44082 Feder, Ventil 3×
- 168 44735 Federhalter, Ventil 3×
- 170 44794 Scheibe, Federhalter 3×
- 172 701481 O-Ring, Ventilstopfen 3×
- 173 20224 Stützring, Ventilstopfen 3×