Gorman-Rupp 11 1/2A3-B

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Size: 1‐1/2” x 1‐1/2” (38 mm x 38 mm) NPT ‐ Female.
Casing: Gray Iron 30.
Maximum Operating Pressure 63 psi (434 kPa).*
Semi‐Open Type, Two Vane Impeller: Gray Iron 30.
Handles 1” (25,4 mm) Diameter Spherical Solids.
Impeller Shaft: Carbon Steel 1215.
Seal Liner: (11‐1/2A2–B) Copper Alloy C26000.
Shaft Sleeve: (11‐1/2A3‐B, 11‐1/2A20‐B and 11‐1/2A52‐B)
Stainless Steel 304.
Replaceable Wear Plate: Carbon Steel 1026.
Removable Cover Plate: Gray Iron 30. Weight 5 lbs. (2,3 kg).
Pedestal: Gray Iron 30.
Seal Plate: Gray Iron 30.
Flap Valve: Steel, Gray Iron 30 and Buna‐N w/Nylon
Radial and Thrust Bearings: Open Single Row Ball.
Bearing Lubrication: Grease.
Flange: Gray Iron 30.
Gaskets: Cork w/Nitrile Binder and Vegetable Fiber.
Hardware: Standard Plated Steel.
Optional Equipment: Strainer.
Consult Factory for Additional Options.
*Consult Factory for Applications Exceeding
Maximum Pressure and/or Temperature Indicated.


Suction 1.5" (38 mm)
Discharge 1.5" (38 mm)
Solids Handling 1" (25 mm)
Material Cast Iron
Impeller Material Cast Iron
Seal Material Carbon/Ceramic
Flange ASA
Drive Type Basic