General Information

• Manufacturer: Gorman-Rupp Pumps
• Document Date: October 2023
• Section: 70
• Models: 63E31-B, 63E32-B

Pump Specifications

• Type: Standard Centrifugal Pump, Basic Pedestal Models
• Size: 4" x 3" (102 mm x 76 mm) Flanged
• Casing (63E31-B): Ductile Iron 65-45-12
• Casing (63E32-B): Cast Steel 70-36
• Maximum Operating Pressure: 179 psi (1234 kPa)
• Impeller Type: Enclosed, Five Vane
• Impeller Material: Aluminum Alloy SG70A-T6
• Solids Handling: 3/8" (9.5 mm) Diameter Spherical Solids
• Impeller Shaft Material: Carbon Steel 1045
• Bearing Housing Material: Ductile Iron 65-45-12
• Bearing Housing Lubrication: Grease
• Body Cover (63E31-B): Ductile Iron 65-45-12
• Body Cover (63E32-B): Cast Steel 70-36
• Radial and Thrust Bearings: Sealed Single Row Ball
• Gaskets: Buna-N
• Hardware: Standard Plated Steel

Seal Detail

• Type: 21, Mechanical Self-Lubricated
• Rotating Face Material: Carbon
• Stationary Face Material: Ni-Resist
• Elastomers: Fluorocarbon (DuPont Viton or Equivalent)
• Cage and Spring Material: Stainless Steel 18-8
• Maximum Liquid Temperature: 160 F (71 C)

Optional Equipment

• 150# Steel 4" NPT Suction and 3" NPT Discharge Flange Kit
• Copper Alloy C93400 Impeller
• PTFE Seal

Approximate Dimensions and Weights

• Model 63E31-B
  • Net Weight: 213 LBS (96.6 KG)
  • Shipping Weight: 236 LBS (107 KG)
  • Export Crate: 12.8 CU. FT. (0.36 CU. M)
• Model 63E32-B
  • Net Weight: 255 LBS (115.7 KG)
  • Shipping Weight: 270 LBS (122.5 KG)
  • Export Crate: 12.8 CU. FT. (0.36 CU. M)

Performance Curve Notes

• 60 HERTZ PERFORMANCE BASED ON WATER TRIMMED IMPELLER
• 50 HERTZ PERFORMANCE BASED ON WATER TRIMMED IMPELLER
• 60 HERTZ PERFORMANCE BASED ON PETROLEUM TRIMMED IMPELLER
• 50 HERTZ PERFORMANCE BASED ON PETROLEUM TRIMMED IMPELLER