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SC-45 ENGINEERING DATA
Power End
Model Triplex Pump SC-45
Maximum Input HP at Speed 60 at 600 rpm
Rated Continuous Plunger Load 5,280 lbs.
Stroke 2-1/4"
Maximum Rated Continuous Speed 600 rpm
Normal Continuous Speed Range 150 to 600 rpm
Minimum Speed 100 rpm
Oil Capacity 5 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 3-1/4" x 3-5/8"
Crankshaft Ductile Iron
Crankshaft Diameters:
At Drive Extension
At Tapered Roller Bearings
At Crankpin Bearings, Diameter x Length
2.125/2.124"
3.15"
2.250" x 1.625"
Crosshead (Wrist) Pin, Case-Hardened and Ground AISI 8620
Main Bearings, Tapered Roller Timken
Crankpin Bearings,
Precision Automotive
Steel Backed,
Babbitt-Lined
Extension (Pony) Rod:
Integral with Plungers, 1-7/8" thru 1-1/2" sizes 316 S.S.
Connecting Rod, Automotive Type Ductile Iron
Average Crosshead Speed:
At 600 rpm
At 450 rpm
225 fpm
169 fpm
Minimum Life Expectancy, Main Bearings, L
10
15,000+hr
Liquid End
Plunger Size Range, Diameter 1-7/8" thru 1-1/2"
Maximum Continuous Working Pressure 3,500 psi
Hydrostatic Test 5,250 psi
Discharge Connection Size 1-1/4" NPTF
Suction Connection Size 2" NPTF
Available Liquid End Materials, ASTM:
Ductile Iron A536 80-55-06
SC-45 ENGINEERING DATA
Liquid End (Continued)
Plunger Type Rokide
®
Stainless Steel:
Chromium Oxide-Coated 416 S.S.
Stuffing Boxes, Field-Removable and Replaceable:
Carbon Steel 1020
Packing Types Available:
Gland-loaded, Nonadjustable
Spring-loaded, Cup-Type
Spring-loaded, Braided Teflon
®
& Kevlar
®
Spring-loaded, Garlock
Style 838
Style 120X
Style 140/141
Style 8921K
Valve Cover and Cylinder Head Plugs 416 S.S.
Retainer Plates, Steel, ASTM A36
Seals, Stuffing Boxes, Valve Covers, Cylinder Heads Buna-N
Bolting, High Strength, Heat Treated Alloy Steel
Available Valve Types:
Standard, Acetal Resin
Optional, Hardened and Lapped
Double Stem-Guided
Delrin
®
17-4PH S.S.
17-4PH S.S.
Valve Seat, Liquid Passage Areas:
Plate (Disc) Valves, (Delrin
®
or S.S.)
Double Stem-Guided Valve
1.400 sq. in.
.958 sq. in.
Average Liquid Velocity with 1-7/8" Plungers,
Plate Valves:
At 600 Crankshaft rpm
At 450 Crankshaft rpm
7.40 fps
5.55 fps
Average Liquid Velocity with 1-7/8" Plungers,
Stem-Guided Valves:
At 600 Crankshaft rpm
At 450 Crankshaft rpm
10.81 fps
8.11 fps
Average Liquid Velocity at 600 rpm:
Thru Suction Manifold
Thru Discharge Manifold
4.12 fps
10.75 fps
General
Overall Dimensions:
Length
Width
Height
31-3/4"
18-5/8"
12-3/8"
Approximate Weights:
With Nickel Aluminum Bronze Liquid End 430 lbs.
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