
9
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
300 fpm
100 fpm
Minimum Life Expectancy, Main Bearings, L
10
60,000+hr
Liquid End
Plunger Size Range, Diameter
2-1/2" Thru 3-1/8"
Maximum Continuous Working Pressure
3,000 psi
Hydrostatic Test:
Discharge
Suction
4,500 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
410 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
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, with 3-1/8" Plungers:
At 450 Crankshaft rpm
At 150 Crankshaft rpm
9.71 fps
3.23 fps
Average Liquid Velocity, 3-1/8" Plungers at 450 rpm:
Suction Manifold
Discharge Manifold
4.54 fps
10.24 fps
General
Overall Dimensions:
Length
Width
Height
49"
36"
18-1/4"
Approximate Weights:
With Forged Steel Liquid End
1,850 lbs.
Содержание SC-170
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