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High Pressure Plunger Pump · Frame size 35 PFR

3521DHS

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.

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Technical specifications

Flow rate 94.6 l/min
Operating pressure 138 bar
Speed 870 min⁻¹
Inlet port 1 1/2"
Discharge port 1"
Shaft diameter 35 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.

8 kits bundle wearing parts of this pump ↓

Skip the drawing, go to the parts list

Exploded view

Exploded view 3521DHS

Parts list

ItemPart no.DescriptionQtyAdd to request list
596049Screw, HHC Sems (M10x25)S8
8134604Cover, Bearing [06/18]ALE2
9815279Shim, Split, 2-Piece 0 - 2FBR2
1012398O-Ring, Bearing Cover - 70DNBR2
1113296Seal, Oil, Crankshaft 0 - 2NBR2
12855049Shim, Split, 2-Piece 0 - 2S0-2
1529326Bearing, RollerSTL2
20126725Rod, Connecting Assembly (Includes: 21, 22, 23) (Model 3521DHS)BZ3
21126749Washer, Locking (M10)STCP3
22126593Washer, Flat (M10.5)STCP6
23122045Screw, HH (M10x55)STZP6
2529325Crankshaft, Dual End (M48)FCM1
31828710Protector, Oil Cap with Foam Gasket 1PE1
3243211Cap, Oil FillerABS1
3314177O-Ring, Oil Filler Cap - 70DNBR1
34126743Bolt, Eye (M12x1.75) (For Lifting Pump Only)STCP1
3792241Gauge, Oil, Bubble with Gasket - 80D 1 - 2PC1
3844428Gasket, Flat, Oil Gauge - 80DNBR1
40125753Screw, HHC, Sems (M8 x 25) (Model 2530E)S8
4825625Plug, Drain (1/4" x 19 BSP[M])STCP1
4923170O-Ring, Drain Plug - 70DNBR1
5045936Cover, Rear (See Tech Bulltin 118)ALE1
5116612O-Ring, Cover - 70DNBR1
53134784Crankcase Assembly (Includes 54)ALE1
5427488Pin, GuideS2
5627790Pan, OilPOP1
5992538Screw, HHC, Sems (M6 x 16) (Model 2530E)S2
6443864Pin, CrossheadCM3
6549166Rod, Plunger (Model 3521DHS)SSHB3
69126587Washer, Oil SealSTCP3
70100488Seal, Oil, CrankcaseNBRS3
7543865Slinger, BarrierS3
8845676Washer, Keyhole (M16)S3
9043957Plunger (M32x145)CC3
9589778Stud, Plunger Retainer (M10x135)SS3
9620189Back-up-Ring, Plunger RetainerPTFE3
9711345O-Ring, Plunger Retainer - 70DNBR3
9844085Gasket, Plunger Retainer (M7) Model 3501, 3501C, Gasket, Plunger Retainer (M10) Model 3511, 3511CSS3
9944084Retainer, Plunger (M10)SS3
100814279Retainer, Seal, 2-PiecePVDF3
10144106Wick, Long Tab3
10443875O-Ring, Inlet Adapter - 70DNBR3
10545562Adapter, Inlet, Low-PressureSS3
10644098Seal, Low-Pressure, with SS - SpringNBR3
10744101Washer, Low-Pressure SealSS3
11045365Manifold, Inlet (Model 3521DHS)SS1
11211379O-Ring, Inlet Manifold - 70DNBR3
11744585Screw, HSH (M14x40)S4
12249782Spacer, V-PackingSS3
12312391O-Ring, V-Packing Cylinder - 70DNBR3
12449783Cylinder, V-PackingSS3
12648390Adapter, FemaleD3
12744608V-PackingSTG6
12845565Adapter, MaleSS3
14149743Spring, Coil, LargeSS3
15848362Backup Ring, V-Packing, Spacer, OuterD3
15948860O-Ring, V-Packing Cylinder - 90DNBR3
16248363Backup-Ring, Valve SeatD6
16326142O-Ring, Seat - 80DNBR6
16444612Seat, SteppedSS6
16644108ValveSS6
16744109Spring, ValveSS6
16844728Retainer, SpringPVDF6
17044729Washer, Spring RetainerSS6
17144644Coil Spring (70kg), Valve PlugSS6
17289827O-Ring, Valve Plug - 90DNBR6
17348364Backup-Ring, Valve PlugD6
17449300Plug, ValveSSD6
18549299Manifold, DischargeSSD1
18889981Screw, HSH (M12 x 70)S8
250855042Protector, Shaft with Two (2) Screws, Lockwashers and WashersNY1
–6124Gasket, Liquid (3 oz. / 0,1 l)1
–6139Lubricant, Anti-Seize (8 oz) (Model 1531)1
–30278Oiler (1 oz) (Not Shown) 33
–30696Reverse Pliers (Not Shown)1
–30742Passfeder, M10 x 8 x 701
–34018Mount, Direct (STZP R)1
–34314Kit, Oil Drain (3/8" x 48") (Not Shown)1
–45116Rod, Plunger (Model 3521C)SSZZ3
–45564Adapter, FemaleSS3
–80540Screw, Adjusting (M12 x 100) 21
–121467Rod, Connecting Assembly (Includes: 21, 22, 23) (Model 3521C)TNM3
–125397Manifold, Inlet, Flushed (1/4" Flush Ports) (Model 3521C)SS1
–126611Mount, Rail Assembly (STZP R)1
–818373Head, Complete with NBR Seals and O-Rings (3521DHS)1
–819000Assembly, Crankcase, Cast Iron Conversion (Not Shown) 11
–6133Oil, Crankcase, Can 4l1

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

    76841

    NBR (STD)Medium Nitrile (Buna-N)

    contains 10 items · one kit per pump

    Parts list
    • 9711345O-Ring, Plungerhalter3×
    • 10443875O-Ring, Adapter3×
    • 10644098Dichtung, Niederdruck3×
    • 11211379O-Ring, Saugstutzen3×
    • 12312391O-Ring, V-Packung Zylinder3×
    • 12744608V-Packung6×
    • 15548860O-Ring, V-Packing Spacer3×
    • 15648362Backup Ring, V-Packing Spacer3×
    • 15848362Stützring, V-Packung Zylinder3×
    • 15948860O-Ring, V-Packung Zylinder3×

  • Seal kit

    76842

    FPM (0.0110)Fluorocarbon

    contains 10 items · one kit per pump

    Parts list
    • 9711375O-Ring, Plungerhalter3×
    • 10444826O-Ring, Adapter3×
    • 10644827Dichtung, Niederdruck3×
    • 11214183O-Ring, Saugstutzen3×
    • 12313266O-Ring, V-Packung Zylinder3×
    • 12744829V-Packung6×
    • 15520137O-Ring, Distanzstück, V-Packung3×
    • 15648362Stützring, V-Packung, Zylinder3×
    • 15848362Stützring, V-Packung Zylinder3×
    • 15920137O-Ring, V-Packung Zylinder3×

  • Seal kit

    76843

    EPDM (0.0220)Ethylene Propylene Diene Monomer

    contains 10 items · one kit per pump

    Parts list
    • 97701490O-Ring, Plungerhalter3×
    • 104701656O-Ring, Adapter3×
    • 10648244Dichtung, Niederdruck3×
    • 112701491O-Ring, Saugstutzen3×
    • 123701657O-Ring, V-Packung Zylinder3×
    • 12744608V-Packung6×
    • 155701492O-Ring, Distanzstück, V-Packung3×
    • 15648362Stützring, V-Packung, Zylinder3×
    • 15848362Stützring, V-Packung Zylinder3×
    • 159701492O-Ring, V-Packung Zylinder3×

  • Seal kit

    76844

    IPFE (0.0770)I-Perfluoroelastomer

    contains 9 items · one kit per pump

    Parts list
    • 97702961O-Ring, Plungerhalter3×
    • 104702977O-Ring, Adapter3×
    • 10676298Dichtung, Niederdruck3×
    • 112702705O-Ring, Saugstutzen3×
    • 123703481O-Ring, V-Packung Zylinder3×
    • 12744608V-Packung6×
    • 15820464Stützring, V-Packung Zylinder3×
    • 15848362Stützring, V-Packung Zylinder3×
    • 159703159O-Ring, V-Packung Zylinder3×

Valve kits

  • Valve kit

    34017

    NBR (STD)Medium Nitrile (Buna-N)

    contains 11 items · 2 kits per pump

    Parts list
    • 16248363Stützring, Ventilsitz3×
    • 16326142O-Ring, Ventilsitz3×
    • 16444727Ventilsitz (3520, 3520C)3×
    • 16444612Ventilsitz3×
    • 16643932Ventil (3520, 3520C)3×
    • 16644108Ventil3×
    • 16744109Feder, Ventil3×
    • 16844728Federhalter, Ventil3×
    • 17044729Scheibe, Federhalter3×
    • 17289827O-Ring, Ventilstopfen3×
    • 17348364Stützring, Ventilstopfen3×

  • Valve kit

    31955

    FPM (0.0110)Fluorocarbon

    contains 9 items · 2 kits per pump

    Parts list
    • 16248363Stützring, Ventilsitz3×
    • 16314330O-Ring, Ventilsitz3×
    • 16444612Ventilsitz (3520, 3520C)3×
    • 16644108Ventil (3520, 3520C)3×
    • 16744109Feder, Ventil3×
    • 16844728Federhalter, Ventil3×
    • 17044729Scheibe, Federhalter3×
    • 17211747O-Ring, Ventilstopfen3×
    • 17348364Stützring, Ventilstopfen3×

  • Valve kit

    31952

    EPDM (0.0220)Ethylene Propylene Diene Monomer

    contains 9 items · 2 kits per pump

    Parts list
    • 16248363Stützring, Ventilsitz3×
    • 163701493O-Ring, Ventilsitz3×
    • 16444612Ventilsitz (3520, 3520C)3×
    • 16644108Ventil (3520, 3520C)3×
    • 16744109Feder, Ventil3×
    • 16844728Federhalter, Ventil3×
    • 17044729Scheibe, Federhalter3×
    • 172701494O-Ring, Ventilstopfen3×
    • 17348364Stützring, Ventilstopfen3×

  • Valve kit

    76617

    IPFE (0.0770)I-Perfluoroelastomer

    contains 12 items · 2 kits per pump

    Parts list
    • 16248363Stützring, Ventilsitz3×
    • 16244614Stützring, Ventilsitz3×
    • 163702808O-Ring, Ventilsitz3×
    • 16444612Ventilsitz (3520, 3520C)3×
    • 16644108Ventil (3520, 3520C)3×
    • 16744109Feder, Ventil3×
    • 16844728Federhalter, Ventil3×
    • 17044729Scheibe, Federhalter3×
    • 172703169O-Ring, Ventilstopfen3×
    • 172701369O-Ring, Ventilstopfen3×
    • 17348364Stützring, Ventilstopfen3×
    • 17320388Stützring, Ventilstopfen3×

More models in frame size 35 PFR

High Pressure Plunger Pump 3501

3501
Flow rate
37.9 l/min
Operating pressure
345 bar
Speed
915 min⁻¹
Material
Stainless Steel
High Pressure Plunger Pump 3507

3507
Flow rate
33 l/min
Operating pressure
345 bar
Speed
800 min⁻¹
Material
Nickel-Aluminum-Bronze
High Pressure Plunger Pump 3507HS

3507HS
Flow rate
38 l/min
Operating pressure
345 bar
Speed
915 min⁻¹
Material
Nickel-Aluminum-Bronze
High Pressure Plunger Pump 3511

3511
Flow rate
53 l/min
Operating pressure
210 bar
Speed
800 min⁻¹
Material
Stainless Steel

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High Pressure Plunger Pump 3521DHS
3521DHS · High Pressure Plunger Pump