High Pressure Piston Pump · Frame size 3 PFR
291
This triplex (three piston rods) positive displacement, reciprocating piston pump is constructed with 316 stainless steel manifolds, 304 stainless steel valve assemblies, and un-chromed 304 stainless steel sleeves and cylinders. Multiple piston cup and seal configurations are available with NBR (Buna-N) O-rings.
The lower RPM belt drive design provides strong inlet suction and long-lasting pump and seal life.
Technical specifications
| Flow rate | 13.2 l/min |
|---|---|
| Operating pressure | 85 bar |
| Speed | 1,200 min⁻¹ |
| Inlet port | 1/2" |
| Discharge port | 3/8" / 1/2" |
| Shaft diameter | 16.5 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: 0Open request list →
8 kits bundle wearing parts of this pump ↓
Parts list
| Item | Part no. | Description | Qty | Add to request list |
|---|---|---|---|---|
| 2 | 30047 | Key (M5 x 5 x 24)STL | 1 | |
| 5 | 125824 | Screw, HHC Sems (M6x16) 8/4STCP | 8 | |
| 8 | 27950 | Cover, BearingAL | 2 | |
| 10 | 26536 | O-Ring, Bearing Cover - 70DNBR | 2 | |
| 11 | 24159 | Seal, Oil, CrankshaftNBR | 2 | |
| 15 | 14487 | Bearing, BallSTL | 2 | |
| 20 | 48867 | Rod, Connecting AssemblyTNM | 3 | |
| 20 | 122041 | Rod, Connecting Assy [280-8/02, 290-9/02]TNM | 3 | |
| 25 | 26239 | CrankshaftFCM | 1 | |
| 25 | 43804 | CrankshaftFCM | 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 | |
| 37 | 92241 | Gauge, Oil, Bubble with Gasket - 80D 1 - 2 | 1 | |
| 38 | 44428 | Gasket, Flat, Oil Gauge - 80DNBR | 1 | |
| 40 | 126541 | Screw, HHC Sems (M6 x 20)STCP | 4 | |
| 48 | 25625 | Plug, Drain (1/4" x 19 BSP[M])STCP | 1 | |
| 49 | 23170 | O-Ring, Drain Plug - 70DNBR | 1 | |
| 50 | 48772 | Cover, Rear [07/08]AL | 1 | |
| 51 | 48773 | O-Ring, Rear Cover [07/08]NBR | 1 | |
| 53 | 128361 | Crankcase [07/08]AL | 1 | |
| 55 | 126546 | Stud (M8x41.4)STCP | 2 | |
| 64 | 16948 | Pin, CrossheadCM | 3 | |
| 65 | 29612 | Rod, PistonSZZ | 3 | |
| 65 | 101800 | Rod, PistonSZZ | 3 | |
| 69 | 126259 | Washer, Oil SealSTCP | 3 | |
| 70 | 25301 | Seal, Oil - 80DNBR | 3 | |
| 71 | 126189 | Washer, Oil SealSTCP | 3 | |
| 75 | 25327 | Slinger, BarrierS | 3 | |
| 77 | 25392 | O-Ring, Sleeve 6/3NBR | 6 | |
| 80 | 29614 | SleeveSCP | 3 | |
| 81 | 29003 | Backup Ring, Sleeve 3/0PTFE | 3 | |
| 100 | 28597 | Retainer, SealPVDF | 3 | |
| 106 | 30315 | Seal, Low-Pressure, (Greased)NBR | 3 | |
| 109 | 22177 | Plug HH (1/4" NPT)BBCP | 1 | |
| 110 | 25128 | Manifold, Inlet (Models 333, 430)BBCP | 1 | |
| 117 | 85680 | Stud (M8x99.5)STCP | 2 | |
| 118 | 22160 | Elbow, Street [1/2" NPT(M)]BBCP | 1 | |
| 119 | 27004 | Valve, InletS | 3 | |
| 130 | 22021 | PistonS | 3 | |
| 130 | 30543 | PistonS | 3 | |
| 131 | 43476 | Bac-Cup RingPTFE | 3 | |
| 133 | 43172 | Cup, Piston (Machined Cup - Models 331, 333)FPM | 3 | |
| 135 | 27003 | Spacer, PistonS | 3 | |
| 135 | 27983 | Spacer, PistonS | 3 | |
| 136 | 27002 | Retainer, PistonS | 3 | |
| 137 | 27006 | Washer, Conical (M6)S | 3 | |
| 138 | 27000 | Nut, Slotted (M6)S | 3 | |
| 139 | 14158 | Cotterpin (M1.6 x 10)S | 3 | |
| 143 | 23172 | O-Ring, Cylinder - 70DNBR | 6 | |
| 150 | 26112 | CylinderSCP | 3 | |
| 150 | 101802 | CylinderSCP | 3 | |
| 153 | 21985 | Backup Ring, SeatPTFE | 3 | |
| 164 | 43434 | Seat, Q.V.S | 3 | |
| 166 | 43723 | Valve, Q.V.S | 3 | |
| 167 | 43360 | Spring, Q.V.S | 3 | |
| 168 | 43442 | Retainer, Spring, Q.V.S | 3 | |
| 184 | 126521 | Nut, Hex (M8)STCP | 2 | |
| 185 | 43720 | Manifold, Discharge (280, 290)BBCP | 1 | |
| 186 | 15845 | Lockwasher (M8)STZP | 2 | |
| 187 | 126565 | Bolt, Cylinder (M8x62.5)STCP | 2 | |
| 188 | 126813 | Washer, Shim (M8 x 1 x 13) 2 - 4STCP | 2-4 | |
| 189 | 126576 | Washer, Shim (M8 x .5 x 13) 2 - 4STCP | 2-4 | |
| 190 | 126590 | Washer, Shim (M8 x .3 x 13) 2 - 4STCP | 2-4 | |
| 191 | 126591 | Washer, Shim (M8 x 2 x 13) 2 - 4STCP | 2-4 | |
| 192 | 26676 | Retainer, Shim (M8)S | 2 | |
| 194 | 126201 | Nut, Hex Flange (M8)STCP | 2 | |
| 196 | 22187 | Plug, Discharge (3/8" NPT[M]) (Not Shown)BBCP | 1 | |
| 250 | 25130 | Protector, ShaftSTCP | 1 | |
| 260 | 126607 | Assy, Angle RailSTZP | 1 | |
| 283 | 34334 | Kit, Oil Drain (3/8" x 24") (Not Shown) 1 | 1 | |
| 300 | 30023 | Kit, Cup (Inclds: 133, 139, 143, 355)FPM | 1 | |
| 302 | 30202 | Kit, Piston (Inclds: 119-139, 143, 153, 355)NBR | 1 | |
| 355 | 22130 | Inserter, CupNY | 1 | |
| – | 11377 | O-Ring, Adapter, Inner - 80DFPM | 6 | |
| – | 22031 | Spring, F.V.S | 3 | |
| – | 22841 | Retainer, Spring, F.V.S | 3 | |
| – | 22842 | Valve, F.V.S | 3 | |
| – | 25634 | Manifold, Discharge (Models 331, 431)SS | 1 | |
| – | 25635 | Manifold, Inlet (Models 331, 431)SS | 1 | |
| – | 26961 | O-Ring, CylinderPTFE | 6 | |
| – | 28771 | O-Ring, SleeveFPM | 6 | |
| – | 28772 | O-Ring, SleevePTFE | 6 | |
| – | 28774 | Cylinder (Unchromed))S | 3 | |
| – | 29089 | Cup, V-HotSNG | 3 | |
| – | 29487 | Seat, F.V.S | 3 | |
| – | 29743 | Sleeve (Unchromed)S | 3 | |
| – | 30325 | Seal, LPS, Prrrrrm-A-LubeFPM | 3 | |
| – | 43474 | Assy, Bac-Cup (Inclds: 130, 131, 133) (290 Only)FPM | 3 | |
| – | 43834 | Cylinder (Unchromed))S | 3 | |
| – | 76515 | Cup, PistonST4 | 3 | |
| – | 126232 | Lockwasher (M8)STCP | 2 | |
| – | 703244 | O-Ring, Adapter, Valve, Rear - 75DIPFE | 6 | |
| – | 6132 | Oil, Crankcase, Bottle 1l | 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
30305
NBRMedium Nitrile (Buna-N)
contains 5 items · one kit per pump
Parts list
- 10630315Dichtung, Niederdruck3×
- 133290893×
- 13914158Splint3×
- 14326969O-Ring, Cylinder6×
- 15328204Backup Ring, Cylinder3×
Sleeve and seal kits
Sleeve and seal kit
30431
NBRMedium Nitrile (Buna-N)
contains 5 items · one kit per pump
Parts list
- 7525327Stauscheibe3×
- 7725392O-Ring, Hülse6×
- 8029614Hülse3×
- 10630315Dichtung, Niederdruck, geschmiert3×
- 13914158Splint (M1.6x10)3×
Piston kits
Piston kit
30860
NBRMedium Nitrile (Buna-N)
contains 12 items · one kit per pump
Parts list
- 11927004Ventil, Einlass3×
- 13030543Kolben3×
- 13143476Stützring3×
- 13343172Kolbenmanschette3×
- 13527983Distanzstück, Kolben3×
- 13627002Halter, Kolben3×
- 13727006Scheibe, konisch (M6)3×
- 13827000Kronenmutter (M6)3×
- 13914158Splint (M1.6x10)3×
- 14323172O-Ring, Zylinder - 70D6×
- 15321985Stützring, Zylinder3×
- 35522130Montagekappe1×
Cup kits
Cup kit
30272
NBRMedium Nitrile (Buna-N)
contains 3 items · one kit per pump
Parts list
- 13343172Kolbenmanschette3×
- 13914158Splint (M1.6x10)3×
- 14323172O-Ring, Zylinder - 70D6×
Cup kit
76023
FPMFluorocarbon
contains 5 items · one kit per pump
Parts list
- 13143476Stützring3×
- 13343172Kolbenmanschette3×
- 13914158Splint (M1.6x10)3×
- 14311377O-Ring, Zylinder - 80D6×
- 35522130Montagekappe1×
Cup kit
701443
TG
contains 3 items · one kit per pump
Parts list
- 133–Kolbenmanschette3×
- 13914158Splint (M1.6x10)3×
- 143–O-Ring, Zylinder - 70D6×
Valve kits
Valve kit
30024
NBRMedium Nitrile (Buna-N)
contains 5 items · one kit per pump
Parts list
- 14323172O-Ring, Zylinder6×
- 16429487Ventilsitz3×
- 16622842Ventil3×
- 16722031Feder, Ventil3×
- 16822841Federhalter, Ventil (2 Stk. für 30103)3×
Valve kit
30686
NBRMedium Nitrile (Buna-N)
contains 5 items · one kit per pump
Parts list
- 14323172O-Ring, Zylinder6×
- 16443434Ventilsitz3×
- 16643723Ventil3×
- 16743360Feder, Ventil3×
- 16843442Federhalter, Ventil (2 Stk. für 30103)3×
