NAPCO Rotary Gear PumpsRequest Quote

Product Catalogue

Products

Precision rotary gear pumps and complete service kits — engineered for performance and durability.

2″ & 3″ Port SizesStainless & Ductile IronField Serviceable

Rotary Gear Pumps

NAPCO rotary gear pumps are precision-engineered for demanding industrial transfer applications. Available in 2″ and 3″ port sizes, with stainless steel or ductile iron housings — choose a ductile iron gear pump for non-corrosive fuel, oil, and adhesive service. Self-priming, bi-directional, and fully serviceable.

NAPCO PA300S 3-inch stainless steel rotary gear pump, shaft and port flange visible

PA300S

3″ Stainless Steel Rotary Gear Pump

158 GPM
Max Flow @ 280 RPM
100 PSI
Max Pressure
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NAPCO PA300C 3-inch ductile iron rotary gear pump with drive shaft and port flange

PA300C

3″ Ductile Iron Rotary Gear Pump

158 GPM
Max Flow @ 280 RPM
100 PSI
Max Pressure
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NAPCO stainless steel rotary gear pump with drive shaft and threaded port flange

PA200S

2″ Stainless Steel Rotary Gear Pump

69 GPM
Max Flow @ 190 RPM
100 PSI
Max Pressure
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NAPCO PA200C 2-inch ductile iron rotary gear pump with drive shaft and port flange

PA200C

2″ Ductile Iron Rotary Gear Pump

69 GPM
Max Flow @ 190 RPM
100 PSI
Max Pressure
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Service Kits

Factory-matched gear pump service kits for all NAPCO rotary gear pumps. Each service kit includes precision-fit components to restore your pump to original specifications.

PK300S repair kit contents — drive and idler gear assemblies, bearings, seals and gasket set

PK300S

3″ Stainless Steel Repair Kit

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PK300C repair kit contents — drive and idler gear assemblies, bearings, seals and gasket set

PK300C

3″ Ductile Iron Repair Kit

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PK200S repair kit contents — drive and idler gear assemblies, bearings, seals and gasket set

PK200S

2″ Stainless Steel Repair Kit

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PK200C repair kit contents — drive and idler gear assemblies, bearings, seals and gasket set

PK200C

2″ Ductile Iron Repair Kit

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Helpful Resources

Engineering & Performance DataFlow rates, pressure ratings, materials, and dimensional specifications.How to Size a Rotary Gear PumpCalculate the right pump for your flow rate, pressure, and viscosity.Stainless Steel vs. Ductile IronMaterial selection guide for different fluid environments.How Rotary Gear Pumps WorkTechnical overview of internal design and operating principles.Repair Kit vs. ReplacementCost analysis and guidance for rebuilding versus replacing pumps.Gear vs. Vane vs. Piston PumpsComparison of positive displacement pump types for industrial applications.

Need help selecting the right pump?

Tell us about your application, fluid type, and operating conditions — we’ll recommend the right pump configuration.

Contact NAPCO