High Pressure Plunger Pump · Frame size 38 PFR 3810

Name: 3810
Brand: CAT PUMPS
SKU: 3810

This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed of 304 stainless steel block-style manifolds, 304 and SFSS stainless steel discharge valve assemblies with solid ceramic plungers, PTFE and acetal packing assemblies and NBR (Buna-N) O-rings.

Request this pump Data sheet (PDF) Spare parts

Technical specifications

Flow rate	22.7 l/min
Operating pressure	689 bar
Speed	870 min⁻¹
Inlet port	1/2" NPT(F)
Discharge port	3/8" NPT(F)
Shaft diameter	35 mm
Material	Stainless Steel

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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.

2 kits bundle wearing parts of this pump ↓

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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	2
10	12398	O-Ring, Bearing Cover - 70DNBR	2
11	13296	Seal, Oil, Crankshaft 0 - 2NBR	2
12	855049	Shim, Split, 2-Piece 0 - 2S	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	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
64	43864	Pin, CrossheadCM	3
65	670267	Rod, PlungerSHB	3
69	126587	Washer, Oil SealSTCP	3
70	100488	Seal, Oil, CrankcaseNBRS	3
75	670272	Slinger, BarrierNBR	3
90	670269	Assembly, Plunger (M16 x 84) with 304SS M22 Threaded EndCC	3
100	44119	Retainer, Seal, RearPPG	3
102	670273	Retainer, Seal, FrontD	3
106	43316	Seal, Low-Pressure with S-SpringNBR	3
110	670274	Block, HousingS	1
117	670376	Screw, HSH (M14 x 60)S	4
118	670276	PlugS	6
119	13917	O-Ring, PlugNBR	6
123	12391	O-Ring, V-Packing Cylinder - 70DNBR	9
124	670275	CylinderSFSS	3
126	670277	Adapter, FemalePTFE	3
127	670278	V-PackingPTFE	3
128	670279	Adapter, MaleD	3
141	670280	Spring, Coil, PackingS	3
160	670290	Ring, Sealing, Seat, RearPFFE	3
161	670289	Ring, Sealing, Seat, FrontPTFE	3
162	14010	O-Ring, SeatNBR	3
163	670286	Valve, DischargeSFSS	3
164	670285	Seat, Inlet/DischargeSFSS	3
165	43750	Spring, ValveS	3
166	670283	Valve, InletSFSS	3
167	670282	Spring, InletS	3
168	670281	Retainer, Spring, InletD	3
169	32468	Retainer, Spring, DischargePVDF	3
172	14205	Ring, Sealing, FlangePTFE	2
174	670288	Flange, Discharge (3/8" NPT)S	2
175	49044	Screw, HSH (M10 x 25)S	8
185	670284	Manifold, Block (Inlet/Discharge)S	1
188	670291	Screw, HSH (M20 x 160)S	8
250	855042	Protector, Shaft with Two (2) Screws, Lockwashers and WashersPOP	1
–	6124	Gasket, Liquid (3 oz. / 0,1 l)	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
–	34314	Kit, Oil Drain (3/8" x 48") (Not Shown)	1
–	80540	Screw, Adjusting (M12 x 100) 2	2
–	92674	Mount, Rail Assembly (STZP R) (Includes: 34018)	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

997806

NBR (STD)Medium Nitrile (Buna-N)

contains 5 items · one kit per pump
Parts list
- 106 43316 Seal, Low-Pressure with S-Spring 3×
- 123 12391 O-Ring, V-Packing Cylinder - 70D 9×
- 126 670277 Adapter, Female 3×
- 127 670278 V-Packing 3×
- 128 670279 Adapter, Male 3×

Valve kits

Valve kit

997807

NBR (STD)Medium Nitrile (Buna-N)

contains 11 items · one kit per pump
Parts list
- 160 670290 Ring, Sealing, Seat, Rear 3×
- 161 670289 Ring, Sealing, Seat, Front 3×
- 162 14010 O-Ring, Seat 3×
- 163 670286 Valve, Discharge 3×
- 164 670285 Seat, Inlet/Discharge 3×
- 165 43750 Spring, Valve 3×
- 166 670283 Valve, Inlet 3×
- 167 670282 Spring, Inlet 3×
- 168 670281 Retainer, Spring, Inlet 3×
- 169 32468 Retainer, Spring, Discharge 3×
- 172 14205 Ring, Sealing, Flange 2×