High Pressure Plunger Pump · Frame size 28 PFR 2831
This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with 316 stainless steel block-style manifolds, 316 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings.
Technical specifications
| Flow rate | 95 l/min |
|---|---|
| Operating pressure | 70 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
- Data sheet German · PDF
- Data sheet English · PDF
- Service manual English · PDF
- Operating manual German / English · PDF
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.
On the request list: 0 · for this pump: 0 Open request list →
6 kits bundle wearing parts of this pump ↓
Skip the drawing, go to the parts list 
Exploded view
Parts list
| Item | Part no. | Description | Qty | Add to request list |
|---|---|---|---|---|
| 5 | 125753 | Screw, HHC, Sems (M8 x 25) (Model 2530E)S | 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 | 48613 | Assembly, Rod, Connecting (Includes: Lockwasher, Washer, Screws)TNM | 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 | |
| 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 | |
| 64 | 27784 | Pin, CrossheadCM | 3 | |
| 65 | 48719 | Rod, PlungerSSHS | 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 | 701661 | Manifold, Inlet Block-StyleSS | 1 | |
| 111 | 701104 | Plug, Inlet Manifold, [1 1/4" NPT(M)]SS | 1 | |
| 117 | 701693 | Screw HSH(M12 x 80)S | 4 | |
| 118 | 701077 | Plug, [1/4" NPT(M)]SS | 3 | |
| 125 | 45832 | Seal, HPS with SSSNG | 3 | |
| 143 | 14200 | O-Ring, Seal Case - 70DNBR | 6 | |
| 144 | 28243 | Back-up-Ring, V-Packing Spacer 3/6PTFE | 6 | |
| 150 | 701675 | Adapter, ValveSS | 6 | |
| 154 | 11379 | O-Ring, Inlet Manifold - 70DNBR | 6 | |
| 155 | 14520 | O-Ring, Adapter, Valve - 70DNBR | 6 | |
| 157 | 701692 | Spacer, HPSSS | 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 | |
| 172 | 700008 | O-Ring, Valve PlugNBR | 3 | |
| 174 | 701694 | Plug, ValveSS | 3 | |
| 185 | 701662 | Manifold, Valve, Block-StyleSS | 1 | |
| 188 | 89628 | Screw, HSH (M12 x 65) (Model 2530E)S | 16 | |
| – | 6119 | Lubricant, Anti-Seize (2 oz) (2531, 2531C) | 1 | |
| – | 6124 | Gasket, Liquid (3 oz. / 0,1 l) | 1 | |
| – | 26516 | Protector, Shaft | 1 | |
| – | 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 | |
| – | 49789 | Retainer, LPS, RearNY | 3 | |
| – | 126608 | Mount, Rail Assembly | 1 | |
| – | 701719 | Manifold, Inlet Block-Style, Flushed [1/4" NPT(F)] PortsSS | 1 | |
| – | 828710 | Protector, Oil Cap with Foam Gasket 1 | 1 | |
| – | 901402 | Head, Complete - 2831 with NBR Seals and O-Rings | 1 | |
| – | 901403 | Head, Complete - 2831K with NBR Seals and O-Rings | 1 | |
| – | 990663 | Assembly, Flushing, 5 Gal, 115V, 1.1 Amp, 1/2" NPT (Model 6821K) 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
701731
NBR (STD)Medium Nitrile (Buna-N)
contains 8 items · one kit per pump
Parts list
- 96 20184 Stützring, Plungerhalter 3×
- 97 14190 O-Ring, Plungerhalter 3×
- 106 44098 Dichtung, Niederdruck m/SS-Feder 3×
- 125 45832 Dichtung, Hochdruck m/SS 3×
- 143 14200 O-Ring, Adapter, Ventil, hinten 6×
- 144 28243 Stützring, Adapter, Ventil 6×
- 154 11379 O-Ring, Adapter, Ventil, vorne 6×
- 155 14520 O-Ring, Distanzstück 6×
-
Seal kit
701806
FPM (0.0110)Fluorocarbon
contains 8 items · one kit per pump
Parts list
- 96 20184 Stützring, Plungerhalter 3×
- 97 14161 O-Ring, Plungerhalter 3×
- 106 44827 Dichtung, Niederdruck m/SS-Feder 3×
- 125 48220 Dichtung, Hochdruck m/SS 3×
- 143 11719 O-Ring, Adapter, Ventil, hinten 6×
- 144 28243 Stützring, Adapter, Ventil 6×
- 154 14183 O-Ring, Adapter, Ventil, vorne 6×
- 155 11745 O-Ring, Distanzstück 6×
-
Seal kit
33604
EPDM (0.0220)Ethylene Propylene Diene Monomer
contains 8 items · one kit per pump
Parts list
- 96 20184 Stützring, Plungerhalter 3×
- 97 48239 O-Ring, Plungerhalter 3×
- 106 48244 Dichtung, Niederdruck m/SS-Feder 3×
- 125 48220 Dichtung, Hochdruck m/SS 3×
- 143 701654 O-Ring, Adapter, Ventil, hinten 6×
- 144 28243 Stützring, Adapter, Ventil 6×
- 154 701491 O-Ring, Adapter, Ventil, vorne 6×
- 155 48240 O-Ring, Distanzstück 6×
Valve kits
-
Valve kit
701732
NBR (STD)Medium Nitrile (Buna-N)
contains 12 items · one kit per pump
Parts list
- 143 14200 O-Ring, Adapter, Ventil, hinten 6×
- 144 28243 Stützring, Adapter, Ventil 6×
- 154 11379 O-Ring, Adapter, Ventil, vorne 6×
- 155 14520 O-Ring, Distanzstück 6×
- 162 21985 Stützring, Ventilsitz 6×
- 163 26089 O-Ring, Ventilsitz 6×
- 164 44080 Ventilsitz 6×
- 166 44081 Ventil 6×
- 167 44082 Feder, Ventil 6×
- 168 44735 Federhalter, Ventil 6×
- 170 44794 Scheibe, Federhalter 6×
- 172 700008 O-Ring, Ventilstopfen 3×
-
Valve kit
701807
FPM (0.0110)Fluorocarbon
contains 12 items · one kit per pump
Parts list
- 143 11719 O-Ring, Adapter, Ventil, hinten 6×
- 144 28243 Stützring, Adapter, Ventil 6×
- 154 14183 O-Ring, Adapter, Ventil, vorne 6×
- 155 11745 O-Ring, Distanzstück 6×
- 162 21985 Stützring, Ventilsitz 6×
- 163 11377 O-Ring, Ventilsitz 6×
- 164 44080 Ventilsitz 6×
- 166 44081 Ventil 6×
- 167 44082 Feder, Ventil 6×
- 168 44735 Federhalter, Ventil 6×
- 170 44794 Scheibe, Federhalter 6×
- 172 700048 O-Ring, Ventilstopfen 3×
-
Valve kit
701796
EPDM (0.0220)Ethylene Propylene Diene Monomer
contains 12 items · one kit per pump
Parts list
- 143 701654 O-Ring, Adapter, Ventil, hinten 6×
- 144 28243 Stützring, Adapter, Ventil 6×
- 154 701491 O-Ring, Adapter, Ventil, vorne 6×
- 155 48240 O-Ring, Distanzstück 6×
- 162 21985 Stützring, Ventilsitz 6×
- 163 46647 O-Ring, Ventilsitz 6×
- 164 44080 Ventilsitz 6×
- 166 44081 Ventil 6×
- 167 44082 Feder, Ventil 6×
- 168 44735 Federhalter, Ventil 6×
- 170 44794 Scheibe, Federhalter 6×
- 172 701782 O-Ring, Ventilstopfen 3×