CAT PUMPS
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CAT PUMPS
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High Pressure Plunger Pump · Frame size 7 PFR

550

This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with a chrome-plated brass manifold, 304 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings.

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Technical specifications

Flow rate 19 l/min
Operating pressure 210 bar
Speed 1,415 min⁻¹
Inlet port 1/2"
Discharge port 3/8"
Shaft diameter 24 mm
Material Brass

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.

5 kits bundle wearing parts of this pump ↓

Skip the drawing, go to the parts list

Exploded view

Exploded view 550

Parts list

ItemPart no.DescriptionQtyAdd to request list
5125824Screw, HHC Sems (M6x16) 8/4STCP8
8133571Cover, BearingALE2
9815280Shim, Split, 2-Piece 2 - 4FBR1
1012393O-Ring, Bearing Cover 2/1NBR2
1143222Seal, Oil, Crankshaft 2/1/2NBR2
1543221Bearing, RollerSTL2
2048863Rod, Connecting [6/02]TNM3
2543220Crankshaft, Dual End (M24)FCM1
3243211Cap, Oil FillerABS1
3314177O-Ring, Oil Filler Cap - 70DNBR1
3792241Gauge, Oil, Bubble with Gasket - 80D 1 - 2PC1
3844428Gasket, Flat, Oil Gauge - 80DNBR1
40125824Screw, HHC Sems (M6x16) 8/4STCP4
4825625Plug, Drain (1/4" x 19 BSP[M])STCP1
4923170O-Ring, Drain Plug - 70DNBR1
50133569Cover, RearALE1
5114047O-Ring, Rear Cover - 70DNBR1
53133593Crankcase (M10)ALE1
5643240Pan, OilPOP1
6443237Pin, CrossheadCM3
6543229Rod, PlungerZZCP3
69126589Washer, Oil SealSTCP3
7043228Seal, Oil, CrankcaseNBR3
7543328Slinger, BarrierS3
8845697Washer, Keyhole (M18 x 10)S3
9043232Plunger (M18 x 77) (Model 530)CC3
9643235Backup Ring, Plunger RetainerPTFE3
9717399O-Ring, Plunger Retainer - 80DNBR3
9845891Gasket, Plunger Retainer (M12.5)CU3
99104360Retainer, Plunger with StudS3
10045689Retainer, Seal, 2-PiecePVDF3
10143239Wick, Long Tab3
10143313Wick, Long Tab3
10643243Seal, Low-Pressure with S-SpringNBR3
10643316Seal, Low-Pressure with S-SpringNBR3
12045683Case, SealBB3
12045684Case, SealBB3
12120285O-Ring, Seal Case - 70DNBR3
12543245Seal, High-Pressure with S-Support (Model 530)SNG3
12643320Adapter, FemaleBB3
12743319V-Packing (Model 550)SNG6
12843318Adapter, MaleBB3
13922179Plug, Inlet (1/2" NPT[M]) (Not Shown)BBCP1
16243248Backup Ring, SeatPTFE6
16343249O-Ring, Seat - 80DNBR6
16443722SeatS6
16643721ValveS6
16743751Spring, ValveS6
16844564Retainer, SpringPVDF6
17217617O-Ring, Valve Plug - 90DNBR6
17443851Plug, ValveBBCP6
18545417Head, ManifoldBBCP1
18545547Head, ManifoldBBCP1
18746868Stud, Manifold (M10 x 35)S4
194126567Nut, Flanged (M10)STCP4
–30243Mount, Direct (Belt-Drive Only)1
–30488Kit, Seal - Standard NBR (Model 530)1
–30707Passfeder (M8 x 7 x 25)1
–34334Kit, Oil Drain (3/8" x 24") (Not Shown) 11
–43311Plunger (M16 x 77) (Model 550)CC3
–126610Mounting, Angle Rail (STZP R)1
–670066Protector, Shaft with Two (2) Screws (M6 x 20)1
–812183Head, Complete with NBR Seals and O-Rings (Model 530)1
–812184Head, Complete with NBR Seals and O-Rings (Model 550)1
–828710Protector, Oil Cap with Foam Gasket 11
–6132Oil, Crankcase, Bottle 1l1

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

    30610

    NBR (STD)Medium Nitrile (Buna-N)

    contains 6 items · one kit per pump

    Parts list
    • 9717399O-Ring, Plungerhalter (530, 550)3×
    • 10143239Ölfilz (530)3×
    • 10643243Dichtung, Niederdruck (530)3×
    • 12120285O-Ring, Dichtungsgehäuse (530, 550)3×
    • 12543245Dichtung, Hochdruck (530)3×
    • 12743319V-Packung (550)6×

  • Seal kit

    32936

    FPM (0.0110)Fluorocarbon

    contains 6 items · one kit per pump

    Parts list
    • 9714160O-Ring, Plungerhalter (530, 550)3×
    • 10143239Ölfilz (530)3×
    • 10644926Dichtung, Niederdruck (530)3×
    • 12111693O-Ring, Dichtungsgehäuse (530, 550)3×
    • 12544925Dichtung, Hochdruck (530)3×
    • 12746287V-Packung (550)6×

  • Seal kit

    31610

    HT (0.3000)Hi-Temp (EPDM Alternative)

    contains 6 items · one kit per pump

    Parts list
    • 9717399O-Ring, Plungerhalter (530, 550)3×
    • 10143239Ölfilz (530)3×
    • 10643243Dichtung, Niederdruck (530)3×
    • 12120285O-Ring, Dichtungsgehäuse (530, 550)3×
    • 12546652Dichtung, Hochdruck (530)3×
    • 12746287V-Packung (550)6×

Valve kits

  • Valve kit

    30820

    NBR (STD)Medium Nitrile (Buna-N)

    contains 7 items · 2 kits per pump

    Parts list
    • 16243248Stützring, Ventilsitz3×
    • 16343249O-Ring, Ventilsitz3×
    • 16443722Ventilsitz3×
    • 16643721Ventil3×
    • 16743751Feder, Ventil3×
    • 16844564Federhalter, Ventil3×
    • 17217617O-Ring, Ventilstopfen3×

  • Valve kit

    31263

    FPM (0.0110)Fluorocarbon

    contains 7 items · 2 kits per pump

    Parts list
    • 16243248Stützring, Ventilsitz3×
    • 16344383O-Ring, Ventilsitz3×
    • 16443722Ventilsitz3×
    • 16643721Ventil3×
    • 16743751Feder, Ventil3×
    • 16844564Federhalter, Ventil3×
    • 17211691O-Ring, Ventilstopfen3×

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Operating pressure
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Speed
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Material
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Speed
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High Pressure Plunger Pump 57

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Flow rate
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Material
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