Pentair myers aplex Series Manual

NOTE! To the installer: Please make sure you provide this manual to the owner of the equipment or to the responsible
party who maintains the system.
MODELS
MA95L, MA95M, MA120L, MA120LHD, MA120M, MA120MHD,
SC170, SC170L, SC170H, AND SC170DD
TRIPLEX PUMPS
INSTALLATION AND SERVICE MANUAL
Part # AP-03-104 | © 2018 Pentair plc | 04/18/18

2 3
Engineering Data
MA-95L..................................................................... 3
MA-95M .................................................................... 4
MA-120L ................................................................... 5
MA-120L-HD ............................................................ 6
MA-120M .................................................................. 7
MA-120M-HD ........................................................... 8
SC-170L.................................................................... 9
SC-170.....................................................................10
SC-170H ..................................................................11
SC-170DD................................................................12
Dimensional Data.............................................. 13–14
Installation, Operation, Lubrication, Maintenance
and Storage Instructions ........................................15
Safety.......................................................................15
Storage ....................................................................15
Pump Location and Piping Design..........................15
Suction Piping ...................................................15–16
Acceleration Head...................................................16
Discharge Piping ...............................................16–17
Bypass Piping..........................................................17
Lubrication ..............................................................17
V-Belt Drive.......................................................17, 19
Suggested Piping System for Plunger Pumps .......18
Direction of Rotation ...............................................19
Automatic (Safety) Shutdowns................................19
Crankshaft Assembly.............................................. 19
General....................................................................19
Tapered Roller Bearings ...................................19–20
Cup Installation .......................................................20
Installing Crankshaft ..............................................20
Shim Adjustment of Tapered Roller Bearings........20
Installation of Crankshaft Oil Seal..........................20
Lube Oil Pump Assembly........................................20
Disassembly ...................................................... 20-21
Connecting Rod, Crosshead, Extension Rod, Cross-
head Pin and Wiper Box Assembly/Disassembly ....21
General....................................................................21
Installing Wrist Pin Bushings .................................21
Pinning the Crosshead...................................... 21-22
Order of Assembly...................................................22
Precision Crankpin (Crankthrow) Bearings............22
Oil Scoop..................................................................22
Wiper Box Assembly...............................................22
General....................................................................22
“Poly Pak” Seal .......................................................22
Mechanical Oil Seal........................................... 22-23
Inserting the Plunger..............................................23
Stuffing Box, Packing and Plunger Assemblies ......23
General....................................................................23
Spring Loaded Packing ...........................................23
J-Style Stuffing Box & Plunger Assembly
(Styles 838 and 858) .......................................... 23-24
Inserting the Plunger..............................................24
Installing the Gland.................................................24
Installing the Stuffing Box.......................................24
Connecting the Plunger ..........................................24
Packing.............................................................. 24-25
Plungers..................................................................25
Disc Valve Systems and Abrasion Resistant............25
General....................................................................25
Disc Valve and Abrasion Resistant Valve
Construction............................................................25
Setting the Valve Seat..............................................25
Installing O-Rings, Abrasion Resistant Spring
and Cage..................................................................25
Installing Disc, Spring, Disc Valves and Stem .. 25-26
Valve Spring Options ...............................................26
Valve Disc Options ...................................................26
Pulling the Valve Seat..............................................26
Salvage of Worn Seats.............................................26
Other Pump Brands ................................................26
Trouble Location and Remedy........................... 27–29
Parts Lists ........................................................ 30–39
Warranty................................................................. 40

3
MA-95L ENGINEERING DATA
Power End
Model Triplex Pump MA-95L
Maximum Input HP at Speed 95 at 450 rpm
Rated Continuous Plunger Load 6,259 lbs.
Stroke 4"
Maximum Rated Continuous Speed 450 rpm
Normal Continuous Speed Range 150 to 420 rpm
Minimum Speed 100 rpm
Oil Capacity 18 U.S. Quarts
Viscosity, S.S.U. at 210ºF 70 to 84
Power End Oiling System Splash & Scoop
Power Frame, One Piece Cast Iron
Crosshead, Full Cylindrical Cast Iron
Crosshead, Diameter x Length 5-3/4" x 6-3/16"
Crankshaft Ductile Iron
Crankshaft Diameters:
At Drive Extension
At Tapered Roller Bearings
At Crankpin Bearings, Diameter x Length
3.750/3.749"
4"
4" x 3"
Crosshead (Wrist) Pin, Case-Hardened and Ground AISI 8620
Wrist Pin Bushing, SAE 660, Diameter x Width 2" ID x 3" Wide
Main Bearings, Tapered Roller Timken
Crankpin Bearings,
Precision Automotive
Steel Backed, Babbitt-
Lined
Extension (Pony) Rod:
Diameter
Material
2"
17-4 PH S.S.
Connecting Rod, Automotive Type Ductile Iron
Average Crosshead Speed:
At 450 rpm
At 150 rpm
300 fpm
100 fpm
Minimum Life Expectancy, Main Bearings, L10 60,000+hr
Liquid End
Plunger Size Range, Diameter 2-3/8" thru 3-1/2"
Maximum Continuous Working Pressure 1,411 psi
Hydrostatic Test:
Discharge
Suction
3,375 psi
425 psi
Discharge Connection Size 2-1/2" ANSI 900# LF
Suction Connection Size 5" ANSI 150# FF
Maximum Working Pressure Suction Manifold 275 psi
Available Liquid End Materials, ASTM:
Nickel Aluminum Bronze
Forged Steel Block
Ductile Iron
Stainless Steel
B148-C955
A105
A536 80-55-06
Various Grades
MA-95L ENGINEERING DATA
Liquid End (Continued)
Plunger Type Rokide®Stainless Steel:
Chromium Oxide-Coated 316 S.S.
Stuffing Boxes, Field-Removable and Replaceable:
Aluminum Bronze
Stainless Steel, Hardened
Carbon Steel
B148-C955
17-4PH
1020
Packing Types Available:
Gland-loaded, Nonadjustable
Spring-loaded, Cup-Type
Spring-loaded, Braided PTFE Coating & Aramid Fiber
Spring-loaded, Garlock
Style 838
Style 120X
Style 140/141
Style 8921K
Seals, Stuffing Boxes, Valve Covers, Cylinder Heads Buna-N
Studs, Material,
ASTM
A193 Grade B7,
Cadmium Plated
Available Valve Types:
Optional, Hardened and Lapped 17-4PH S.S.
Valve Spring Material Inconel®
Valve Seat, Liquid Passage Areas 6.26 sq. in.
Average Liquid Velocity Through Valves, with 3-1/2" Plungers:
At 450 Crankshaft rpm 7.68 fps
Average Liquid Velocity, 3-1/2" Plungers at 450 rpm:
Suction Manifold
Discharge Manifold
3.67 fps
14.70 fps
General
Overall Dimensions:
Length
Width
Height
50-1/4"
38-1/8"
19-5/8"
Approximate Weights:
With Aluminum Bronze Liquid End
With Forged Steel Liquid End
1,725 lbs.
1,860 lbs.

4 5
MA-95M ENGINEERING DATA
Power End
Model Triplex Pump MA-95M
Maximum Input HP at Speed 95 at 450 rpm
Rated Continuous Plunger Load 6,259 lbs.
Stroke 4"
Maximum Rated Continuous Speed 450 rpm
Normal Continuous Speed Range 150 to 420 rpm
Minimum Speed 100 rpm
Oil Capacity 18 U.S. Quarts
Viscosity, S.S.U. at 210ºF 70 to 84
Power End Oiling System Splash
Power Frame, One Piece Cast Iron
Crosshead, Full Cylindrical Cast Iron
Crosshead, Diameter x Length 5-3/4" x 6-3/16"
Crankshaft Ductile Iron
Crankshaft Diameters:
At Drive Extension
At Tapered Roller Bearings
At Crankpin Bearings, Diameter x Length
3.750/3.749"
4"
4" x 3"
Crosshead (Wrist) Pin, Case-Hardened and Ground AISI 8620
Wrist Pin Bushing, SAE 660, Diameter x Width 2" x 3"
Main Bearings, Tapered Roller Timken
Crankpin Bearings,
Precision Automotive
Steel Backed, Babbitt-
Lined
Extension (Pony) Rod:
Diameter
Material
2"
17-4PH S.S.
Connecting Rod, Automotive Type Ductile Iron
Average Crosshead Speed:
At 450 rpm 300 fpm
Minimum Life Expectancy, Main Bearings, L10 45,000+hr
Liquid End
Plunger Size Range, Diameter 1-3/8" Thru 2-1/4"
Maximum Continuous Working Pressure 3,600 psi
Hydrostatic Test:
Discharge
Suction
5,625 psi
425 psi
Discharge Connection Size 2" ANSI 1500LF
Suction Connection Size 3" ANSI 150FF
Available Liquid End Materials, ASTM:
Nickel Aluminum Bronze
Forged Steel Block
B148-C955
A105
Plunger Type Rokide®Stainless Steel:
Chromium Oxide-Coated 316 S.S.
Stuffing Boxes, Field-Removable and Replaceable:
Aluminum Bronze
Carbon Steel
B148-C955
1020
MA-95M ENGINEERING DATA
Liquid End (Continued)
Packing Types Available:
Gland-loaded, Nonadjustable
Spring-loaded, Cup-Type
Spring-loaded, Braided PTFE Coating & Aramid Fiber
Spring-loaded, Garlock
Style 838
Style 120X
Style 140/141
Style 8921K
Seals, Stuffing Boxes, Valve Covers, Cylinder Heads Buna-N
Studs, Material,
ASTM
A193 Grade B7,
Cadmium Plated
Available Valve Types:
Regularly Furnished, Acetal Resin
Optional, Hardened and Lapped
Acetal
17-4PH S.S.
Valve Spring Material Inconel®
Valve Seat, Liquid Passage Areas 2.35 sq. in.
Average Liquid Velocity Through Valves, with 2-1/4" Plungers:
At 450 Crankshaft rpm 8.45 fps
Average Liquid Velocity, 2-1/4" Plungers at 450 rpm:
Suction Manifold
Discharge Manifold
4.21 fps
9.48 fps
General
Overall Dimensions:
Length
Width
Height
48-3/4"
38-1/8"
19-5/8"
Approximate Weights:
With Aluminum Bronze Liquid End
With Ductile Iron Liquid End
With Forged Steel Liquid End
1,950 lbs.
1,875 lbs.
2,085 lbs.

5
MA-120L ENGINEERING DATA
Power End
Model Triplex Pump MA-120L
Maximum Input HP at Speed 120 at 450 rpm
Rated Continuous Plunger Load 7,452 lbs.
Stroke 4-1/4"
Maximum Rated Continuous Speed 450 rpm
Normal Continuous Speed Range 150 to 420 rpm
Minimum Speed 100 rpm
Oil Capacity 18 U.S. Quarts
Viscosity, S.S.U. at 210ºF 70 to 84
Power End
Oiling System
Full Pressure Lubrica-
tion
Power Frame, One Piece Cast Iron
Crosshead, Full Cylindrical Cast Iron
Crosshead, Diameter x Length 5-3/4" x 6-3/16"
Crankshaft Ductile Iron
Crankshaft Diameters:
At Drive Extension
At Tapered Roller Bearings
At Crankpin Bearings, Diameter x Length
3.750/3.749"
4"
4" x 3"
Crosshead (Wrist) Pin, Case-Hardened and Ground AISI 8620
Wrist Pin Bushing, SAE 660, Diameter x Width 2" x 3"
Main Bearings, Tapered Roller Timken
Crankpin Bearings,
Precision Automotive
Steel Backed, Babbitt-
Lined
Extension (Pony) Rod:
Diameter
Material
2"
17-4PH S.S.
Connecting Rod, Automotive Type Ductile Iron
Average Crosshead Speed:
At 450 rpm
At 150 rpm
318 fpm
106 fpm
Minimum Life Expectancy, Main Bearings, L10 60,000+hr
Liquid End
Plunger Size Range, Diameter 2-3/8" Thru 3-1/2"
Maximum Continuous Working Pressure 1,682 psi
Hydrostatic Test:
Discharge
Suction
3,375 psi
425 psi
Discharge Connection Size 2-1/2" ANSI 900 LF
Suction Connection Size 5" ANSI 150 FF
Maximum Working Pressure Suction Manifold 275 psi
Available Liquid End Materials, ASTM:
Nickel Aluminum Bronze
Forged Steel Block
Ductile Iron
Stainless Steel
B148-C955
A105
A536 80-55-06
Various Grades
MA-120L ENGINEERING DATA
Liquid End (Continued)
Plunger Type Rokide®Stainless Steel:
Chromium Oxide-Coated 316 S.S.
Stuffing Boxes, Field-Removable and Replaceable:
Aluminum Bronze
Stainless Steel, Hardened
Carbon Steel
B148-C955
17-4PH
1020
Packing Types Available:
Gland-loaded, Nonadjustable
Spring-loaded, Cup-Type
Spring-loaded, Braided PTFE Coating & Aramid Fiber
Spring-loaded, Garlock
Style 838
Style 120X
Style 140/141
Style 8921K
Seals, Stuffing Boxes, Valve Covers, Cylinder Heads Buna-N
Studs, Material,
ASTM
A193 Grade B7,
Cadmium Plated
Available Valve Types:
Standard, Acetal Resin
Optional, Hardened and Lapped
Acetal
17-4PH S.S.
Valve Spring Material Inconel®
Valve Seat, Liquid Passage Areas 6.26 sq. in.
Average Liquid Velocity Through Valves, with 3-1/2" Plungers:
At 450 Crankshaft rpm 8.16 fps
Average Liquid Velocity, 3-1/2" Plungers at 450 rpm:
Suction Manifold
Discharge Manifold
3.90 fps
15.62 fps
General
Overall Dimensions:
Length
Width
Height
49"
42-5/8"
19-1/16"
Approximate Weights:
With Aluminum Bronze Liquid End
With Forged Steel Liquid End
1,725 lbs.
1,860 lbs.

6 7
MA-120L-HD ENGINEERING DATA
Power End
Model Triplex Pump MA-120L-HD
Maximum Input HP at Speed 144 at 450 rpm
Rated Continuous Plunger Load 8,937 lbs.
Stroke 4-1/4"
Maximum Rated Continuous Speed 450 rpm
Normal Continuous Speed Range 150 to 420 rpm
Minimum Speed 100 rpm
Oil Capacity 18 U.S. Quarts
Viscosity, S.S.U. at 210ºF 70 to 84
Power End
Oiling System
Full Pressure Lubrica-
tion
Power Frame, One Piece Cast Iron
Crosshead, Full Cylindrical Cast Iron
Crosshead, Diameter x Length 5-3/4" x 6-3/16"
Crankshaft Forged and
Nitrided Alloy Steel
Crankshaft Diameters:
At Drive Extension
At Tapered Roller Bearings
At Crankpin Bearings, Diameter x Length
3.750/3.749"
4"
4" x 3"
Crosshead (Wrist) Pin, Case-Hardened and Ground AISI 8620
Wrist Pin Bushing, SAE 660, Diameter x Width 2" x 3"
Main Bearings, Tapered Roller Timken
Crankpin Bearings,
Precision Automotive
Steel Backed, Babbitt-
Lined
Extension (Pony) Rod:
Diameter
Material
2"
17-4PH S.S.
Connecting Rod, Automotive Type Ductile Iron
Average Crosshead Speed:
At 450 rpm
At 150 rpm
318 fpm
106 fpm
Minimum Life Expectancy, Main Bearings, L10 50,000+hr
Liquid End
Plunger Size Range, Diameter 2-3/8" Thru 3-1/2"
Maximum Continuous Working Pressure 2,020 psi
Hydrostatic Test:
Discharge
Suction
3,375 psi
425 psi
Discharge Connection Size 2-1/2" ANSI 900 LF
Suction Connection Size 5" ANSI 150 FF
Maximum Working Pressure Suction Manifold 275 psi
Available Liquid End Materials, ASTM:
Nickel Aluminum Bronze
Forged Steel Block
Ductile Iron
Stainless Steel
B148-C955
A105
A536 80-55-06
Various Grades
MA-120L-HD ENGINEERING DATA
Liquid End (Continued)
Plunger Type Rokide®Stainless Steel:
Chromium Oxide-Coated 316 S.S.
Stuffing Boxes, Field-Removable and Replaceable:
Aluminum Bronze
Stainless Steel, Hardened
Carbon Steel
B148-C955
17-4PH
1020
Packing Types Available:
Gland-loaded, Nonadjustable
Spring-loaded, Cup-Type
Spring-loaded, Braided PTFE Coating & Aramid Fiber
Spring-loaded, Garlock
Style 838
Style 120X
Style 140/141
Style 8921K
Seals, Stuffing Boxes, Valve Covers, Cylinder Heads Buna-N
Studs, Material,
ASTM
A193 Grade B7,
Cadmium Plated
Available Valve Types:
Standard, Acetal Resis
Optional, Hardened and Lapped
Acetal
17-4PH S.S.
Valve Spring Material Inconel®
Valve Seat, Liquid Passage Areas 6.26 sq. in.
Average Liquid Velocity Through Valves, with 3-1/2" Plungers:
At 450 Crankshaft rpm 8.16 fps
Average Liquid Velocity, 3-1/2" Plungers at 450 rpm:
Suction Manifold
Discharge Manifold
3.90 fps
15.62 fps
General
Overall Dimensions:
Length
Width
Height
49"
42-5/8"
19-1/16"
Approximate Weights:
With Aluminum Bronze Liquid End
With Forged Steel Liquid End
1,725 lbs.
1,860 lbs.

7
MA-120M ENGINEERING DATA
Power End
Model Triplex Pump MA-120M
Maximum Input HP at Speed 120 at 450 rpm
Rated Continuous Plunger Load 7,452 lbs.
Stroke 4-1/4"
Maximum Rated Continuous Speed 450 rpm
Normal Continuous Speed Range 150 to 420 rpm
Minimum Speed 100 rpm
Oil Capacity 18 U.S. Quarts
Viscosity, S.S.U. at 210ºF 70 to 84
Power End
Oiling System
Pressure
Lubrication
Power Frame, One Piece Cast Iron
Crosshead, Full Cylindrical Cast Iron
Crosshead, Diameter x Length 5-3/4" x 6-3/16"
Crankshaft Ductile Iron
Crankshaft Diameters:
At Drive Extension
At Tapered Roller Bearings
At Crankpin Bearings, Diameter x Length
3.750/3.749"
4"
4" x 3"
Crosshead (Wrist) Pin, Case-Hardened and Ground AISI 8620
Wrist Pin Bushing, SAE 660, Diameter x Width 2" x 3"
Main Bearings, Tapered Roller Timken
Crankpin Bearings,
Precision Automotive
Steel Backed, Babbitt-
Lined
Extension (Pony) Rod:
Diameter
Material
2"
17-4PH S.S.
Connecting Rod, Automotive Type Ductile Iron
Average Crosshead Speed:
At 450 rpm 318 fpm
Minimum Life Expectancy, Main Bearings, L10 45,000+hr
Liquid End
Plunger Size Range, Diameter 1-1/2" Thru 2-1/4"
Maximum Continuous Working Pressure 3,600 psi
Hydrostatic Test:
Discharge
Suction
5,625 psi
425 psi
Discharge Connection Size 2" ANSI 1500# LF
Suction Connection Size 3" ANSI 150# FF
Available Liquid End Materials, ASTM:
Nickel Aluminum Bronze
Forged Steel Block
B148-C955
A105
Plunger Type Rokide®Stainless Steel:
Chromium Oxide-Coated 316 S.S.
MA-120M ENGINEERING DATA
Liquid End (Continued)
Stuffing Boxes, Field-Removable and Replaceable:
Aluminum Bronze
Carbon Steel
B148-C955
1020
Packing Types Available:
Gland-loaded, Nonadjustable
Spring-loaded, Cup-Type
Spring-loaded, Braided PTFE Coating & Aramid Fiber
Spring-loaded
Style 838
Style 120X
Style 140/141
Style 8921K
Seals, Stuffing Boxes, Valve Covers, Cylinder Heads Buna-N
Studs, Material,
ASTM
A193 Grade B7,
Cadmium Plated
Available Valve Types:
Regularly Furnished, Acetal Resin
Optional, Hardened and Lapped
Acetal
17-4PH S.S.
Valve Spring Material Inconel®
Valve Seat, Liquid Passage Areas 2.35 sq. in.
Average Liquid Velocity Through Valves, with 2-1/4" Plungers:
At 450 Crankshaft rpm 8.97 fps
Average Liquid Velocity, 2-1/4" Plungers at 450 rpm:
Suction Manifold
Discharge Manifold
4.47 fps
10.09 fps
General
Overall Dimensions:
Length
Width
Height
48-3/4"
42-5/8"
19-5/8"
Approximate Weights:
With Aluminum Bronze Liquid End
With Ductile Iron Liquid End
With Forged Steel Liquid End
1,950 lbs.
1,875 lbs.
2,085 lbs.

8 9
MA-120M-HD ENGINEERING DATA
Power End
Model Triplex Pump MA-120M-HD
Maximum Input HP at Speed 120 at 450 rpm
Rated Continuous Plunger Load 8,937 lbs.
Stroke 4-1/4"
Maximum Rated Continuous Speed 450 rpm
Normal Continuous Speed Range 150 to 420 rpm
Minimum Speed 100 rpm
Oil Capacity 18 U.S. Quarts
Viscosity, S.S.U. at 210ºF 70 to 84
Power End
Oiling System
Pressure
Lubrication
Power Frame, One Piece Cast Iron
Crosshead, Full Cylindrical Cast Iron
Crosshead, Diameter x Length 5-3/4" x 6-3/16"
Crankshaft Forged and Nitrided
Alloy Steel
Crankshaft Diameters:
At Drive Extension
At Tapered Roller Bearings
At Crankpin Bearings, Diameter x Length
3.750/3.749"
4"
4" x 3"
Crosshead (Wrist) Pin, Case-Hardened and Ground AISI 8620
Wrist Pin Bushing, SAE 660, Diameter x Width 2" x 3"
Main Bearings, Tapered Roller Timken
Crankpin Bearings,
Precision Automotive
Steel Backed, Babbitt-
Lined
Extension (Pony) Rod:
Diameter
Material
2"
17-4PH S.S.
Connecting Rod, Automotive Type Ductile Iron
Average Crosshead Speed:
At 450 rpm 318 fpm
Minimum Life Expectancy, Main Bearings, L10 45,000+hr
Liquid End
Plunger Size Range, Diameter 1-5/8" Thru 2-1/4"
Maximum Continuous Working Pressure 3,900 psi
Hydrostatic Test:
Discharge
Suction
5,625 psi
425 psi
Discharge Connection Size 2" ANSI 1500# LF
Suction Connection Size 3" ANSI 150# FF
Available Liquid End Materials, ASTM:
Nickel Aluminum Bronze
Forged Steel Block
B148-C955
A105
Plunger Type Rokide®Stainless Steel:
Chromium Oxide-Coated 316 S.S.
MA-120M-HD ENGINEERING DATA
Liquid End (Continued)
Stuffing Boxes, Field-Removable and Replaceable:
Aluminum Bronze
Carbon Steel
B148-C955
1020
Packing Types Available:
Gland-loaded, Nonadjustable
Spring-loaded, Cup-Type
Spring-loaded, Braided PTFE Coating & Aramid Fiber
Spring-loaded
Style 838
Style 120X
Style 140/141
Style 8921K
Seals, Stuffing Boxes, Valve Covers, Cylinder Heads Buna-N
Studs, Material,
ASTM
A193 Grade B7,
Cadmium Plated
Available Valve Types:
Regularly Furnished, Acetal Resin
Optional, Hardened and Lapped
Acetal
17-4PH S.S.
Valve Spring Material Inconel®
Valve Seat, Liquid Passage Areas 2.35 sq. in.
Average Liquid Velocity Through Valves, with 2-1/4" Plungers:
At 450 Crankshaft rpm 8.97 fps
Average Liquid Velocity, 2-1/4" Plungers at 450 rpm:
Suction Manifold
Discharge Manifold
4.47 fps
10.09 fps
General
Overall Dimensions:
Length
Width
Height
48-3/4"
42-5/8"
19-5/8"
Approximate Weights:
With Aluminum Bronze Liquid End
With Ductile Iron Liquid End
With Forged Steel Liquid End
1,950 lbs.
1,875 lbs.
2,085 lbs.

9
SC-170L ENGINEERING DATA
Power End
Model Triplex Pump SC-170L
Maximum Input HP at Speed 230 at 450 rpm
Rated Continuous Plunger Load 14,280 lbs.
Stroke 4-1/4"
Maximum Rated Continuous Speed 450 rpm
Normal Continuous Speed Range 150 to 420 rpm
Minimum Speed 100 rpm
Oil Capacity 18 U.S. Quarts
Viscosity, S.S.U. at 210ºF 70 to 84
Power End
Oiling System
Pressure
Lubrication
Power Frame, One Piece Cast Iron
Crosshead, Full Cylindrical Cast Iron
Crosshead, Diameter x Length 5-3/4" x 6-3/16"
Crankshaft Forged Steel and
Nitrided
Crankshaft Diameters:
At Drive Extension
At Tapered Roller Bearings
At Crankpin Bearings, Diameter x Length
3.750/3.749"
4"
4" x 3"
Crosshead (Wrist) Pin, Case-Hardened and Ground AISI 8620
Wrist Pin Bushing, SAE 660, Diameter x Width 2" x 3"
Main Bearings, Tapered Roller Timken
Crankpin Bearings,
Precision Automotive
Steel Backed, Babbitt-
Lined
Extension (Pony) Rod:
Diameter
Material
2"
17-4PH S.S.
Connecting Rod, Automotive Type Ductile Iron
Average Crosshead Speed:
At 450 rpm 318 fpm
Minimum Life Expectancy, Main Bearings, L10 45,000+hr
Liquid End
Plunger Size Range, Diameter 3-1/8" Thru 4"
Maximum Continuous Working Pressure 1,862 psi
Hydrostatic Test:
Discharge
Suction
3,375 psi
425 psi
Discharge Connection Size 2-1/2" ANSI 900LF
Suction Connection Size 5" ANSI 150FF
Available Liquid End Materials, ASTM:
Nickel Aluminum Bronze
Forged Steel Block
Ductile Iron
B148-C955
A105
A536 80-55-06
Plunger Type Rokide®Stainless Steel:
Rokide®316 S.S.
SC-170L ENGINEERING DATA
Liquid End (Continued)
Stuffing Boxes, Field-Removable and Replaceable:
Aluminum Bronze
Carbon Steel
B148-C955
1020
Piston Liner:
Chrome Oxide Coated
High Chrome Iron
4121
4121
Packing Types Available:
Gland-loaded, Nonadjustable
Spring-loaded, Cup-Type
Spring-loaded, Braided PTFE Coating & Aramid Fiber
Spring-loaded
Style 838
Style 120X
Style 140/141
Style 8921K
Piston Cups Available:
Urethane
Nitrile
HSN and Aramid Fiber
Seals, Stuffing Boxes, Valve Covers, Cylinder Heads Buna-N
Studs, Material,
ASTM
A193 Grade B7,
Cadmium Plated
Available Valve Types:
Regularly Furnished
Optional, Hardened and Lapped
Abrasion Resistant
17-4PH S.S.
Valve Spring Material Inconel®
Valve Seat, Liquid Passage Areas 3.3 sq. in.
Average Liquid Velocity Through Valves, with 4" Plungers:
At 450 Crankshaft rpm 20.2 fps
Average Liquid Velocity, 4" Plungers at 450 rpm:
Suction Manifold
Discharge Manifold
5.1 fps
20.4 fps
General
Overall Dimensions:
Length
Width
Height
50-1/4"
42-5/8"
19-5/8"
Approximate Weights:
With Aluminum Bronze Liquid End
With Ductile Iron Liquid End
With Forged Steel Liquid End
2,050 lbs.
1,975 lbs.
2,185 lbs.

10 11
SC-170 ENGINEERING DATA
Power End
Model Triplex Pump SC-170
Maximum Input HP at Speed 230 at 450 rpm
Rated Continuous Plunger Load 14,280 lbs.
Stroke 4-1/4"
Maximum Rated Continuous Speed 450 rpm
Normal Continuous Speed Range 150 to 420 rpm
Minimum Speed 100 rpm
Oil Capacity 18 U.S. Quarts
Viscosity, S.S.U. at 210ºF 70 to 84
Power End
Oiling System
Pressure
Lubrication
Power Frame, One Piece Cast Iron
Crosshead, Full Cylindrical Cast Iron
Crosshead, Diameter x Length 5-3/4" x 6-3/16"
Crankshaft Nitrided
Forged Steel
Crankshaft Diameters:
At Drive Extension
At Tapered Roller Bearings
At Crankpin Bearings, Diameter x Length
3.750/3.749"
4"
4" x 3"
Crosshead (Wrist) Pin, Case-Hardened and Ground AISI 8620
Wrist Pin Bushing, SAE 660, Diameter x Width 2" x 3"
Main Bearings, Tapered Roller Timken
Crankpin Bearings,
Precision Automotive
Steel Backed, Babbitt-
Lined
Extension (Pony) Rod:
Diameter
Material
2"
17-4PH S.S.
Connecting Rod, Automotive Type Ductile Iron
Average Crosshead Speed:
At 450 rpm
At 150 rpm
318 fpm
106 fpm
Minimum Life Expectancy, Main Bearings, L10 60,000+hr
Liquid End
Plunger Size Range, Diameter 2-1/2" Thru 3-1/8"
Maximum Continuous Working Pressure 2,909 psi
Hydrostatic Test:
Discharge
Suction
5,625 psi
425 psi
Discharge Connection Size 2-1/2" NPTF
Suction Connection Size 4" NPTF
Maximum Working Pressure Suction Manifold 275 psi
Available Liquid End Materials, ASTM:
Forged Steel Block A105
SC-170 ENGINEERING DATA
Liquid End (Continued)
Plunger Type Rokide®Stainless Steel:
Chromium Oxide-Coated 316 S.S.
Stuffing Boxes, Field-Removable and Replaceable:
Carbon Steel 1020
Packing Types Available:
Gland-loaded, Nonadjustable
Spring-loaded, Cup-Type
Spring-loaded, Braided PTFE Coating & Aramid Fiber
Spring-loaded
Style 838
Style 120X
Style 140/141
Style 8921K
Seals, Stuffing Boxes, Valve Covers, Cylinder Heads Buna-N
Studs, Material,
ASTM
A193 Grade B7,
Cadmium Plated
Available Valve Types:
Optional, Hardened and Lapped 17-4PH S.S.
Valve Spring Material Inconel®
Valve Seat, Liquid Passage Areas 3.925 sq. in.
Average Liquid Velocity Through Valves, with 3-1/8" Plungers:
At 450 Crankshaft rpm
At 150 Crankshaft rpm
10.38 fps
3.46 fps
Average Liquid Velocity, 3-1/8" Plungers at 450 rpm:
Suction Manifold
Discharge Manifold
4.86 fps
12.45 fps
General
Overall Dimensions:
Length
Width
Height
49"
36"
18-1/4"
Approximate Weights:
With Forged Steel Liquid End 1,850 lbs.