DATA SHEET

60 FRAME PLUNGER PUMP

Brass Model: 6775

SPECIFICATIONS U.S. Measure Metric Measure

Flow 75 gpm 284 lpm
Pressure Range 100–1200 psi 6.9–83 bar
Pump RPM* 650 rpm 650 rpm
Inlet Pressure Range Flooded to 50 psi Flooded to 3.4 bar
Max. Liquid Temp. (NBR) 140° F 60° C
Bore 2.165" 55 mm
Stroke 2.579" 65.5 mm
Crankcase Capacity 10 qts 9.46 l
Inlet Ports (2) 2" NPT(F) 2" NPT(F)
Discharge Ports (2) 11/4" NPT(F) 11/4" NPT(F)
Shaft Diameter 1.772" 45 mm
(Box rails and shaft protector included)
Weight 335 lbs 152 kg
Dimensions 31.14 x 24.37 x 12.87" 791 x 619 x 327 mm
* Pump minimum is 100 RPM.
FEATURES
• Triplex plunger design ensures high efficiency and low pulsation.
• V-packings and low-pressure seals are completely lubricated and cooled,
greatly increasing service life.
• Special high-density, polished, concentric plungers provide a true wear
surface and extended seal life.
• Guided valve design extends valve life.
ALTERNATIVE SEAL CONFIGURATION
• Pump comes standard with NBR seals. Alternative seal materials MATERIAL SUFFIX CODE
are available for chemical compatibility.
NBR —
FPM .0110
EPDM .0220
See Tech Bulletin 002 for inlet conditions and RPM at high-temperature.

DETERMINING Rated gpm Desired gpm

=
THE PUMP RPM Rated rpm Desired rpm
DETERMINING hp gpm x psi
=
THE REQUIRED HP (Electric Brake) 1460
DETERMINING Motor Pulley OD Pump Pulley OD
=
MOTOR PULLEY SIZE Pump rpm Motor rpm
Refer to pump Service Manual for repair procedure and additional technical information.
 PARTS LIST
ITEM PART NUMBER DESCRIPTION QTY
5 126532 STCP R Screw, HH (M10 x 40) (See Tech Bulletin 074) 8
6 126231 STCP R Lockwasher (M10) 8
7 126574 STZP R Washer, Flat (M10) 8
8 29443 ALE Cover, Bearing, Outer 2
10 29444 NBR O-Ring Outer, Bearing Cover–70D 2
11 11443 NBR Seal, Oil, Crankshaft 2
12 126594 STCP R Washer, Shim (M120 x 0.3) 0–2
13 126595 STCP R Washer, Shim (M120 x 0.5) 0–2
15 29441 STL Bearing, Roller 2
16 29442 STL Cover, Bearing, Inner 2
17 29444 NBR O-Ring Inner, Bearing Cover–70D 2
20 126612 BBHS Rod, Connecting (Includes: 21, 22) (See Tech Bulletin 074) 3
21 126560 STCP R Washer, Locking 3
22 126593 STCP R Washer, Shim (M10.5 x 1.5) 6
25 29440 FCM Crankshaft, Dual-End (65.5 mm) 1
32 43211 ABS Cap, Oil Filler 1
33 14177 NBR O-Ring, Oil Filler Cap–70D 1
34 126743 STCP R Bolt, Eye (M12) (For Lifting Pump Only) 1
38 129343 RBR Gasket, Flat 1
39 27769 ABS Stick, Dip 1
40 126531 STCP R Screw, HH (M10 x 30) (See Tech Bulletin 074) 8
41 126231 STCP R Lockwasher (M10) 8
42 126574 STZP R Washer, Flat (M10) 8
48 25625 STCP Plug, Drain (1/4" x 19 BSP) 1
49 23170 NBR O-Ring, Drain Plug–70D 1
50 29438 ALE Cover, Rear 1
51 129386 NBR Gasket, Rear Cover 1
53 133667 ALE Crankcase with Guide Pins (Includes: 54) 1
54 43282 S Pin, Guide 2
55 126553 STCP R Stud (M16 x 70) 2
64 29481 CM Pin, Crosshead 3
65 † 45384 SSZZ Rod, Plunger 3
69 126588 STCP R Washer, Oil Seal 3
70 29454 NBR Seal, Oil 3
75 44752 NBR Slinger, Barrier–85D 3
88 45677 SS Washers, Keyhole (M14) 3
90 44749 CC Plunger (M55 x 185) 3
95 89783 S Stud, Plunger Retainer (M14 x 147) 3
96 20214 PTFE Backup Ring, Plunger Retainer 3
97 17616 NBR O-Ring, Plunger Retainer–80D 3
98 44751 SS Gasket, Plunger Retainer 3
99 45276 S Retainer, Plunger (M14) (See Tech Bulletin 074) 3
100 855000 PVDF Retainer, Seal, 2-Piece 3
101 44762 — Wick, Long Tab (M55 x 185) 3
106 44757 NBR Seal, Low-Pressure with SS-Spring 3
110 *49457 NABC Manifold, Inlet 1
112 18175 NBR O-Ring, Spacer, Inner–80D 3
114 44767 SS Spacer, Inlet Manifold 3
115 18175 NBR O-Ring, Spacer, Outer–80D 3
116 126569 STCP R Lockwasher (M16) 4
117 126537 STCP R Screw, HH (M16 x 55) (See Tech Bulletin 074) 4
126 48392 D Adapter, Female 3
127 44764 STG V-Packing 6
128 45772 SS Adapter, Male 3
141 44943 SS Coil Spring, Spacer 24
142 48501 BB Spacer with Coil Springs 3
155 18178 NBR O-Ring, Spacer–80D 3
157 45321 SS Spacer, V-Packing 3
159 18178 NBR O-Ring, Spacer–80D 3
160 44756 S Pin, Guide 2
163 18176 NBR O-Ring, Seat–80D 6
164 † 44772 SS Seat 6
165 76304 SS Guide, Spring 6
166 76319 SS Valve, Guided 6
167 76309 SS Spring 6
168 76349 PVDF Retainer, Spring 6
169 76306 SS Retainer, Bushing 6
171 44780 SS Spring, Coil, Valve Plug 6
172 18177 NBR O-Ring, Valve Plug–80D 6
174 49461 NABC Plug, Valve 1
185 49459 NABC Manifold, Discharge 1
186 126569 STCR R Lockwasher (M16) 2
188 126744 STCP R Screw, HSH (M16 x 110) (See Tech Bulletin 074) 8
194 126525 STCP R Nut, Hex (M16) 2
250 29445 ALE Protector, Shaft 1
255 33243 STZP Mount, Direct 1
256 29649 STCP Washer, Slant (M16) (To Shim and Align Mounting Bolts [Not Included] Through the Box Rail and Mounting Base) 4
259 126604 STCP R Rail, Box 2
* When ordering a new inlet manifold PN 49457, order two (2) PN 44756 guide pins (Item #160)

Optional Parts and Accessories and Service parts listed on page 3. Standard and optional Seal and Valve Kits listed on page 4.
 EXPLODED VIEW

250

56
7 Oil Protector
Cap
8 20
10 32 39
11 33 38
15 22 40
16 41
21 42
17 34
48
49
64
25

53 50
69 51
75 65
100
101 70 17
100
54 16
174
95 15
13
12 Key
171 11
90 10
88 172 8
97 186
160 168 76
99
96 194 169 5
106
98 126
127 167 256
127 110
165
142 164
Inlet
157 112 166
128 114
141 115
155 163

116
159 117 259
188 255

Discharge
164
167 185
168 163
171 166
174 165

169
Model
172
Brass – 6775
July 2024

OPTIONAL PARTS AND ACCESSORIES SERVICE PARTS

PART DESCRIPTION QTY PART DESCRIPTION QTY
43048 Key (M14 x 9 x 90) 1 34091 Kit, Seal – Standard NBR 1
828710 Protector, Oil Cap with Foam Gasket 1 76140 Kit, Valve – Standard NBR 2
990014 Hub, “B”, M45 with Keyway (Not Shown) 1 6102 Oil, Jug (2.5 gal) 1
30429 Oiler (10 oz) (Not Shown) 3 (Fill to Specified Crankcase Capacity Prior to Start-up)
34314 Kit, Oil Drain (3⁄8" x 48") (Not Shown) 1 6124 Gasket, Liquid (3 oz) 1
88902 Stud, (M16 x 277) (For Removal of DM and IM) (Not Shown) 1 6139 Lubricant, Anti-seize (8 oz) (See Tech Bulletin 095) 1
819010 Assembly, Crankcase, Cast Iron Conversion (Not Shown) 1 31173 Crankcase Oil Seal Removal and Installation Kit (Not Shown) 1
(Includes: Oil Seals, Guide Tool, Screws, Washer)
30696 Reverse Pliers (Not Shown) 1
996760 Head, Complete, Block-Style with NBR Seals and O-Rings 1

Italics are optional items. = Production parts are different than service parts.
R Components comply with RoHS Directive. For additional technical information see www.catpumps.com/literature/tech-bulletins.
MATERIAL CODES (Not Part of Part Number): ABS=ABS Plastic ALE=Aluminum Epoxy BB=Brass BBHS=Brass/High Strength CC=Ceramic CM=Chrome-Moly D=Acetal
EPDM=Ethylene Propylene Diene Monomer FCM=Forged Chrome-moly FPM=Fluorocarbon NAB=Nickel Aluminum Bronze NABC=Nickel Aluminum Bronze Chrome Plated
NBR=Medium Nitrile PE=Polyethylene (Buna-N) PTFE=Pure Polytetrafluoroethylene PVDF=Polyvinylidene RBR=Rubber Fluoride S=304SS SS=316SS
SFTB=Special Blend PTFE Black SSZZ=316SS/Zamak STCP=Steel/Chrome Plated STG=Special Blend PTFE White STL=Steel STZP=Steel/Zinc Plated

Kits – NBR, FPM (.0110), EPDM (.0220) listed on page 4.

 31.14 (791)

24.37 (619) 25.00 (635)

12.00 (305)
12.60 (320) 2X 11⁄4" NPT(F) 21.14 (537)
DISCHARGE 17.00 (432)

Ø 1.772 (45)
3.94
8X M12 (100)

.55 (14)

3.07
(78)
17.87 (454)

(113)
4.45
10.83 (275)

3.94
(100)
1.97 (50)
2X 2" NPT(F) INLET 12.60 (320)
2X Ø 6.75MM THRU 3.15 (80)
7.09 (180) 3.15 (80)
GROUNDING WIRE HOLES
11.89 (302) 2.56 12.60 (320) 2.56
(65) (65)

SEAL KITS One (1) seal kit required per pump

PUMP MODEL NBR (STD) FPM (.0110) EPDM (.0220) u
6775 34091* 34093* 76091*

ITEM (Included in Seal Kits) DESCRIPTION QTY

97 17616 11686 703369 O-Ring, Plunger Retainer 3
106 44757 45882 702228 Seal, Low-Pressure with SS-Spring 3
112 18175 13266 702442 O-Ring, Inner Spacer 3
115 18175 13266 702442 O-Ring, Outer Spacer 3
127 44764 44764 44764 V-Packing 6
155 18178 13338 701657 O-Ring, Spacer 3
159 18178 13338 701657 O-Ring, Spacer 3
* Review material codes for individual items (STG may be used as alternative)
♦ Silicone Oil/Grease required

VALVE KITS Two (2) valve kits required per pump

PUMP MODEL NBR (STD) FPM (.0110) EPDM (.0220) u
6775 76140 76145 76240

ITEM (Included in Valve Kits) DESCRIPTION QTY

163 18176 13278 702445 O-Ring, Seat 3
164 44772 44772 44772 Seat 3
165 76304 76304 76304 Guide, Spring 3
166 76319 76319 76319 Valve, Guided 3
167 76309 76309 76309 Spring, Valve 3
168 76349 76349 76349 Retainer, Spring 3
169 76306 76306 76306 Retainer, Bushing 3
172 18177 13279 701988 O-Ring, Valve Plug 3
♦ Silicone Oil/Grease required

• CAUTIONS AND WARNINGS

All high-pressure systems require a primary pressure regulating device (e.g. regulator, unloader) and a secondary pressure relief device (e.g. pop-off valve, relief valve). Failure to install such
relief devices could result in personal injury or damage to pump or property. Cat Pumps does not assume any liability or responsibility for the operation of a customer’s high-pressure system.
Read all CAUTIONS and WARNINGS before commencing service or operation of any high-pressure system. The CAUTIONS and WARNINGS are included in each Service Manual and with each
Accessory Data sheet. CAUTIONS and WARNINGS can also be viewed online at www.catpumps.com/dynamic-literature/cautions-and-warnings or can be requested directly from Cat Pumps.
WARRANTY
View the Limited Warranty online at www.catpumps.com/literature/cat-pumps-limited-warranty

CAT PUMPS 1681 94th Lane N.E., Minneapolis, MN 55449-4324 P: (763) 780-5440 F: (763) 780-2958 E: techsupport@catpumps.com www.catpumps.com
©2010–2024 Cat Pumps Corporation. All Rights Reserved. PN 993422 Rev M 24185 7/24