Part 1: KERR KT-3350 PT Triplex Plunger Pump
Introduction to KERR KT-3350 PT The KERR KT-3350 PT is a robust, high-performance horizontal triplex piston pump. This pump is specifically designed for demanding industrial applications, providing reliable fluid transfer under high-pressure and high-flow conditions. Its design reflects Kerr Pumps' decades of experience in pump manufacturing and a long-standing commitment to quality, durability, and operational efficiency. This pump is typically suitable for intermittent duty cycles, making it ideal for applications such as Horizontal Directional Drilling (HDD) and various oilfield services.
Part 2: KERR KT-3350 PT: Core Technical Specifications and Performance Data
|
Parameter |
Value |
|
Pump Model |
KERR KT-3350 PT |
|
Pump Type |
Horizontal Triplex Piston Pump |
|
Number of Cylinders (Pistons) |
3 |
|
Rated Power |
117 Brake Horsepower (BHP) |
|
Stroke Length |
3.5 inches (89 mm) |
|
Max Recommended Speed |
400 RPM |
|
Minimum Speed |
100 RPM |
|
Mechanical Efficiency (Bare Shaft) |
90% |
|
Drive Type |
Optional bolt-on gear reducer available |
|
Pump Weight (Bare Pump) |
Approx. 1,200 lbs (545 kg) |
|
Overall Dimensions |
|
|
Length |
54.5 inches (1384 mm) |
|
Width |
24.82 inches (630 mm) |
|
Height |
35.375 inches (899 mm) |
Table 2.1: KERR KT-3350 PT Estimated Performance Matrix (Piston Type, 117 BHP, 90% Mechanical Efficiency, 100% Volumetric Efficiency)
|
Piston Diameter (inch) |
Estimated Max Continuous Working Pressure (PSI) @ 400 RPM |
Theoretical Displacement Per Revolution (Gallons/Rev) |
Flow at 100 RPM (GPM / BPD) |
Flow at 200 RPM (GPM / BPD) |
Flow at 300 RPM (GPM / BPD) |
Flow at 400 RPM (GPM / BPD) |
|
3.0 |
≈1403 |
0.3213 |
32.1/1101 |
64.3/2203 |
96.4/3305 |
128.5/4407 |
|
3.5 |
≈1031 |
0.4373 |
43.7/1499 |
87.5/2999 |
131.2/4498 |
174.9/5998 |
|
4.0 |
≈790 |
0.5712 |
57.1/1958 |
114.2/3917 |
171.4/5877 |
228.5/7836 |
Part 3: KERR KT-3350 PT: Common Accessories, Wear Parts, and Recommended Auxiliaries
Table: KERR KT-3350 PT Key Wear Parts and Spares
|
Component Category |
Part Name |
Typical Material/Type |
Kerr Part Number (If Available from Documentation) |
|
Fluid End |
Piston Body |
Metal (Stainless Steel) |
"KA-250-300 (3""), KA-250-350 (3.5""), KA-250-400 (4"")" |
|
Fluid End |
Piston Cup Kit |
Fabric-Reinforced Nitrile Rubber, HSN/Kevlar |
"KA-260-300 (3""), KA-260-350 (3.5""), KA-260-400 (4"")" |
|
Fluid End |
Liner |
Chrome-Plated, Ceramic, Kerramic |
"KT-285-300CH, KT-285-350CER, KT-285-400KER, etc." |
|
Fluid End |
Liner Seal Gasket |
Special Sealing Material |
KA-295 |
|
Fluid End |
Suction Valve Assembly |
Stainless Steel (HT), Abrasion-Resistant Insert (A/R) |
KT-305HT |
|
Fluid End |
Discharge Valve Assembly |
Stainless Steel (HT), Abrasion-Resistant Insert (A/R) |
KT-300HT |
|
Fluid End |
Valve Seat |
Heat-Treated Stainless Steel |
251551 (Rhino Supply) |
|
Fluid End |
Valve Insert |
Abrasion-Resistant Polyurethane/Plastic |
"KA-502HT, KP-85" |
|
Fluid End |
Pony Rod Oil Seal |
Special Sealing Material |
KA-28 |
|
Fluid End |
Piston O-ring |
Nitrile Rubber or Similar Material |
KA-246 |
|
Power End |
Connecting Rod Bearing/Bushing |
Steel-Backed Babbitt or Similar |
KT-21-000 (Standard) |
|
Power End |
Crankshaft Oil Seal |
Special Sealing Material |
|
|
Power End |
Pony Rod Gland Gasket |
Special Sealing Material |
KA-26G |
Special Repair Tools
The "Kerr Special Tool Kit" (251505) for KT-3350PT/KT-3400PT includes: KA-68M (Valve Puller), AP-771 (Valve Insert Tool), KA-248 (Piston Snap Ring Tool), KA-276 (Pony Rod Seal Installation Tool), KA-277 (Pony Rod Wrench), KA-306 (Valve Seat Installation Tool).
Part 4: KERR KT-3350 PT: Typical Applications, Market Positioning, and Competitive Advantages
4.1. Main Application Areas
Horizontal Directional Drilling (HDD): This is a frequently mentioned application area for Kerr PT (piston type) pumps, including the KT-3350PT. Buckhorn Pumps specifically categorizes the KT-3350PT for HDD applications. East West Drilling mentions this pump being used with a Ditchwitch JT7020 (an HDD drill rig).
Oilfield Services: Kerr pumps are widely used in general oilfield operations. This may include well servicing, completion services, or fluid transfer.
Industrial Cleaning / Hydro-jetting: Its high-pressure capability makes it suitable for such applications.
Pressure Testing:
Mining Applications, Cement Slurry Transfer, Hot Oil Service, Reverse Osmosis: These are listed as general application areas for Kerr pumps.
4.2. Target Customer Industries
Oil and Gas (Exploration, Production, Services)
Construction Industry (especially HDD contractors)
Mining Industry
General Industrial Manufacturing
Municipal Services (less likely for this specific high-power model, but Kerr generally serves this market)
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