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High Pressure Plunger Pump · Frame size 25 PFR 2531HS

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 95 l/min
Operating pressure 83 bar
Speed 1,025 min⁻¹
Inlet port 1 1/4" 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.

9 kits bundle wearing parts of this pump ↓

Skip the drawing, go to the parts list

Exploded view

Exploded view 2531HS

Parts list

Item Part no. Description Qty Add to request list
5 125753 Screw, HHC, Sems (M8 x 25) (Model 2530E)S 8
5 126544 Screw, HHC, Sems (M8 x 25)STCP 8
8 134966 Cover, Bearing (Models 2560, 2565)ALE 2
10 27772 O-Ring, Bearing Cover - 70DNBR 2
11 27771 Seal, Oil, Crankshaft - 70DNBR 2
15 26512 Bearing, BallSTL 2
20 126809 Assembly, Connecting Rod (Includes Item: 21)BZ 3
21 126562 Washer, Locking (M10)STCP 3
25 49795 Crankshaft - Dual End (M38.5)FCM 1
32 43211 Cap, Oil FillerABS 1
33 14177 O-Ring, Oil Filler Cap - 70DNBR 1
36 129343 Gasket, Flat FlexibleRBR 1
37 92241 Gauge, Oil, Bubble with Gasket - 80D 1 - 2PC 1
38 44428 Gasket, Flat, Oil Gauge - 80DNBR 1
39 27769 Dip Stick (Blue)ABS 1
40 125753 Screw, HHC, Sems (M8 x 25) (Model 2530E)S 8
40 126544 Screw, HHC, Sems (M8 x 25)STCP 8
48 25625 Plug, Drain (1/4" x 19 BSP[M])STCP 1
49 23170 O-Ring, Drain Plug - 70DNBR 1
50 133582 Cover, RearALE 1
51 27767 O-Ring, Rear Cover - 70DNBR 1
53 133609 Crankcase Assembly (Includes Item: 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
59 125824 Screw, HHC Sems (M6x16) 8/4STCP 2
64 27784 Pin, CrossheadCM 3
65 134716 Rod, PlungerSSHB 3
70 27785 Seal, Crankcase Oil -70DNBR 3
75 110669 Slinger, BarrierS 3
88 110670 Washer, Keyhole (M16)S 3
90 45749 Plunger (M32 x 93)CC 3
95 89835 Stud, Retainer (M7 x 87)SS 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 49788 Retainer, LPS, FrontNY 3
101 110796 Wick, Long Tab (M32) 3
106 44098 Seal, Low-Pressure, with SS - SpringNBR 3
110 45830 Manifold, InletNAB 1
110 48583 Manifold, InletSS 1
110 49265 Manifold, InletCFBB 1
116 19085 Lockwasher, Split (Model 2530E)S 4
116 126570 Lockwasher, SplitSTCP 4
117 88398 Screw, HSH (M12 x 40) (Model 2530E)S 4
117 126518 Screw, HSH (M12 x 40)STCP 4
125 45832 Seal, HPS with SSSNG 3
143 14203 O-Ring, Adapter, LPS, Rear - 70DNBR 3
150 45752 Adapter, LPSBB 3
150 45835 Adapter, LPSSS 3
154 18690 O-Ring, Valve Plug - 70DNBR 3
155 14520 O-Ring, Adapter, Valve - 70DNBR 6
157 45751 Adapter, ValveBB 3
157 45834 Adapter, ValveSS 3
164 46857 Seat [11/95]SS 6
165 14014 O-Ring, SeatNBR 6
166 45839 ValveSS 6
167 45840 SpringSS 6
168 110682 Retainer, SpringPVDF 6
185 45836 Manifold, DischargeNAB 1
185 48585 Manifold, DischargeSS 1
185 49267 Manifold, DischargeCFBB 1
186 19085 Lockwasher, Split (Model 2530E)S 8
186 126570 Lockwasher, SplitSTCP 8
188 89628 Screw, HSH (M12 x 65) (Model 2530E)S 8
188 126517 Screw, HSH (M12 x 65)STCP 8
– 6119 Lubricant, Anti-Seize (2 oz) (2531, 2531C) 1
– 6124 Gasket, Liquid (3 oz. / 0,1 l) 1
– 19085 Lockwasher, Split (Model 2530E)S 4
– 19085 Lockwasher, Split (Model 2530E)S 8
– 26516 Protector, Shaft 1
– 30278 Oiler (1 oz) (Not Shown) 3 3
– 30696 Reverse Pliers (Not Shown) 1
– 30716 Key (8 x 7 x 43) 1
– 34334 Kit, Oil Drain (3/8" x 24") (Not Shown) 1 1
– 49545 Manifold, Inlet Flushed (1/4" Ports)SS 1
– 49789 Retainer, LPS, RearNY 3
– 88398 Screw, HSH (M12 x 40) (Model 2530E)S 4
– 89628 Screw, HSH (M12 x 65) (Model 2530E)S 8
– 92538 Screw, HHC, Sems (M6 x 16) (Model 2530E)S 2
– 125753 Screw, HHC, Sems (M8 x 25) (Model 2530E)S 8
– 126608 Mount, Rail Assembly 1
– 701931 Sealant, Silicone (3 oz) (2530E) 1
– 814838 Head, Complete - with NBR Seals and O-Rings (Model 2530) 1
– 816538 Head, Complete - with NBR Seals and O-Rings (Model 2537) 1
– 816735 Head, Complete - with NBR Seals and O-Rings (Model 2531) 1
– 828710 Protector, Oil Cap with Foam Gasket 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

    30952

    NBR (STD)Medium Nitrile (Buna-N)

    contains 6 items · one kit per pump

    Parts list
    • 97 14190 O-Ring, Plungerhalter 3×
    • 106 44098 Dichtung, Niederdruck m/SS-Feder 3×
    • 125 45832 Dichtung, Hochdruck m/SS 3×
    • 143 14203 O-Ring, Adapter, ND-Dichtung, hinten 3×
    • 154 18690 O-Ring, Adapter, ND-Dichtung, vorne 3×
    • 155 14520 O-Ring, Adapter, Ventil 6×

  • Seal kit

    33607

    FPM (0.0110)Fluorocarbon

    contains 6 items · one kit per pump

    Parts list
    • 97 14161 O-Ring, Plungerhalter 3×
    • 106 44827 Dichtung, Niederdruck m/SS-Feder 3×
    • 125 48220 Dichtung, Hochdruck m/SS 3×
    • 143 11731 O-Ring, Adapter, ND-Dichtung, hinten 3×
    • 154 11744 O-Ring, Adapter, ND-Dichtung, vorne 3×
    • 155 11745 O-Ring, Adapter, Ventil 6×

  • Seal kit

    33608

    EPDM (0.0220)Ethylene Propylene Diene Monomer

    contains 6 items · one kit per pump

    Parts list
    • 97 48239 O-Ring, Plungerhalter 3×
    • 106 48244 Dichtung, Niederdruck m/SS-Feder 3×
    • 125 48220 Dichtung, Hochdruck m/SS 3×
    • 143 48241 O-Ring, Adapter, ND-Dichtung, hinten 3×
    • 154 48242 O-Ring, Adapter, ND-Dichtung, vorne 3×
    • 155 48240 O-Ring, Adapter, Ventil 6×

  • Seal kit

    31257

    IPFE (0.0770)I-Perfluoroelastomer

    contains 6 items · one kit per pump

    Parts list
    • 97 703586 O-Ring, Plungerhalter 3×
    • 106 76298 Dichtung, Niederdruck m/SS-Feder 3×
    • 125 48220 Dichtung, Hochdruck m/SS 3×
    • 143 701851 O-Ring, Adapter, ND-Dichtung, hinten 3×
    • 154 703588 O-Ring, Adapter, ND-Dichtung, vorne 3×
    • 155 702962 O-Ring, Adapter, Ventil 6×

  • Seal kit

    76292

    STHT (0.3400)Special PTFE High Temp

    contains 6 items · one kit per pump

    Parts list
    • 97 14190 O-Ring, Plungerhalter 3×
    • 106 76298 Dichtung, Niederdruck m/SS-Feder 3×
    • 125 48220 Dichtung, Hochdruck m/SS 3×
    • 143 14203 O-Ring, Adapter, ND-Dichtung, hinten 3×
    • 154 18690 O-Ring, Adapter, ND-Dichtung, vorne 3×
    • 155 14520 O-Ring, Adapter, Ventil 6×

Valve kits

  • Valve kit

    33952

    NBR (STD)Medium Nitrile (Buna-N)

    contains 8 items · 2 kits per pump

    Parts list
    • 143 14203 O-Ring, Adapter, ND-Dichtung, hinten 3×
    • 154 18690 O-Ring, Adapter, ND-Dichtung, vorne 3×
    • 155 14520 O-Ring, Adapter, Ventil 6×
    • 164 46857 Ventilsitz 3×
    • 165 14014 O-Ring, Ventilsitz 3×
    • 166 45839 Ventil 3×
    • 167 45840 Feder, Ventil 3×
    • 168 110682 Federhalter, Ventil 3×

  • Valve kit

    31267

    FPM (0.0110)Fluorocarbon

    contains 8 items · 2 kits per pump

    Parts list
    • 143 11731 O-Ring, Adapter, ND-Dichtung, hinten 3×
    • 154 11744 O-Ring, Adapter, ND-Dichtung, vorne 3×
    • 155 11745 O-Ring, Adapter, Ventil 6×
    • 164 46857 Ventilsitz 3×
    • 165 48238 O-Ring, Ventilsitz 3×
    • 166 45839 Ventil 3×
    • 167 45840 Feder, Ventil 3×
    • 168 110682 Federhalter, Ventil 3×

  • Valve kit

    31268

    EPDM (0.0220)Ethylene Propylene Diene Monomer

    contains 8 items · 2 kits per pump

    Parts list
    • 143 48241 O-Ring, Adapter, ND-Dichtung, hinten 3×
    • 154 48242 O-Ring, Adapter, ND-Dichtung, vorne 3×
    • 155 48240 O-Ring, Adapter, Ventil 6×
    • 164 46857 Ventilsitz 3×
    • 165 48243 O-Ring, Ventilsitz 3×
    • 166 45839 Ventil 3×
    • 167 45840 Feder, Ventil 3×
    • 168 110682 Federhalter, Ventil 3×

  • Valve kit

    76267

    IPFE (0.0770)I-Perfluoroelastomer

    contains 8 items · 2 kits per pump

    Parts list
    • 143 701851 O-Ring, Adapter, ND-Dichtung, hinten 3×
    • 154 703588 O-Ring, Adapter, ND-Dichtung, vorne 3×
    • 155 702962 O-Ring, Adapter, Ventil 6×
    • 164 46857 Ventilsitz 3×
    • 165 703587 O-Ring, Ventilsitz 3×
    • 166 45839 Ventil 3×
    • 167 45840 Feder, Ventil 3×
    • 168 110682 Federhalter, Ventil 3×

More models in frame size 25 PFR

High Pressure Plunger Pump 2510

2510
Flow rate
76 l/min
Operating pressure
140 bar
Speed
1,450 min⁻¹
Material
Brass
High Pressure Plunger Pump 2511

2511
Flow rate
76 l/min
Operating pressure
105 bar
Speed
1,450 min⁻¹
Material
Stainless Steel
High Pressure Plunger Pump 2530

2530
Flow rate
95 l/min
Operating pressure
70 bar
Speed
1,025 min⁻¹
Material
Brass
High Pressure Plunger Pump 2530E

2530E
Flow rate
94.6 l/min
Operating pressure
83 bar
Speed
1,025 min⁻¹
Material
Brass

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High Pressure Plunger Pump 2531HS
2531HS · High Pressure Plunger Pump
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