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Positive Displacement Rotary Gear Pump

PA200C 2″ Ductile Iron Rotary Gear Pump

Self-PrimingBi-DirectionalField ServiceableMade in USA
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NAPCO PA200C 2-inch ductile iron rotary gear pump with drive shaft and port flange
2″
Port Size, NPT
69GPM
Max Flow @ 190 RPM
100PSI
Max Pressure
190RPM
Max Speed
114lbs
Net Weight

Overview

The PA200C is a 2″ port positive displacement rotary gear pump with a ductile iron housing and nitrile gears. It moves petroleum products, adhesives, sealants and industrial fluids at up to 69 GPM and 100 PSI, and is fully rebuildable in the field with standard hand tools.

Ductile iron is the economical choice wherever the fluid is not corrosive. For chemical or food-grade duty, see the stainless PA200S — or the full stainless vs. ductile iron comparison. For background on the pumping principle, see what a rotary gear pump is.

Performance — Water @ 190 RPM

SG 1.0 · Ambient
RPMPSIGPMFlowBrake HP
19010690.6
19030651.8
19050643.2
19070624
190100605.7

Higher-viscosity fluids may require lower RPM. Flow bars are scaled to the 69 GPM maximum. View full engineering data →

Configuration

Housing
Ductile Iron
Economical, non-corrosive duty
Gears (std)
Nitrile
Petroleum & industrial
Gear Options
Viton®
For aggressive chemicals
Ports
2″ NPT
Threaded ANSI flange
Rotation
Bi-Directional
CW / CCW line clearing

PA200C

2″ Ductile Iron Rotary Gear Pump

Technical Data

Materials of Construction

HousingDuctile Iron
ShaftDuctile Iron
Gears (standard)Nitrile
Gears (optional)Viton®
Port gasketsAsbestos-free paper
High pressure sealsViton®
Low pressure sealsViton®
BearingsRoller

Connections, Weights & Shipping

Net weight114 lbs
Shipping (boxed)13″ × 19″ × 16″
Port connection2″ NPT
Shaft diameterØ1.125″
Shaft keyway0.25″ × 3.52″
Shaft protrusion4.75″
Mounting holes2 × Ø0.64″ thru

Nitrile gears are standard; Viton® gears available for aggressive chemical service. Full dimensional detail is called out on the drawings below.

Seal & Gasket Part Numbers

PM036High pressure seal — 4 req.
PM037Low pressure seal — 4 req.
PM007G01Centercase gasket — 0.008″
PM007G02Centercase gasket — 0.016″
PM038Roller bearing — 4 req.

Reference Drawings

Inches · Not for fabrication

Drive shaft may be fitted in either position.

Traced from NAPCO factory drawing · Rev. 07/2026
PK200C repair kit contents — drive and idler gear assemblies, seals, bearings and gasket set

Rebuild, Don’t Replace

PK200C — 2″ Ductile Iron Repair Kit

Drive and idler gear assemblies, all high- and low-pressure seals, all bearings, and a full gasket set — everything needed to restore the pump to original factory specification.

Rebuild Time
2–4 hours, hand tools
Cost vs. New Pump
30–50% less
View Kit

Related Products

PA200S2″ stainless steelPA300C3″ ductile ironPA300S3″ stainless steelPK200CRepair kit, 2″ ductile ironPK200SRepair kit, 2″ stainless

Technical Resources

Ductile iron gear pumps explainedStainless steel vs. ductile ironHigh-viscosity pump selectionHow to size a rotary gear pumpCavitation: causes & preventionHow rotary gear pumps workRotary pumps in explosives & miningField maintenance guide