---
title: Gorman-Rupp Standard Centrifugal Pump Models 63E31-B & 63E32-B Specification Data
doc_type: Specification Data
tags: [63E31-B, 63E32-B, Gorman-Rupp Pumps, Centrifugal Pump, Industrial Pump]
summary: Specifications, dimensions, and material details for Gorman-Rupp standard centrifugal pump models 63E31-B and 63E32-B, including seal information and performance basis.
---
**Manufacturer:** Gorman-Rupp Pumps
**Document Date:** October 2023
**Section:** 70

### Pump Specifications
*   **Type:** Standard Centrifugal Pump
*   **Size:** 4" x 3" (102 mm x 76 mm) Flanged
*   **Maximum Operating Pressure:** 179 psi (1234 kPa) (Consult factory for applications exceeding this)
*   **Impeller:** Enclosed Type, Five Vane
    *   **Material:** Alum Alloy SG70A-T6
    *   **Solid Handling:** 3/8" (9.5 mm) Diameter Spherical Solids
*   **Impeller Shaft:** Carbon Steel 1045
*   **Bearing Housing:** Ductile Iron 65-45-12
*   **Bearing Housing Lubrication:** Grease
*   **Radial and Thrust Bearings:** Sealed Single Row Ball
*   **Gaskets:** Buna-N
*   **Hardware:** Standard Plated Steel

**Model 63E31-B**
*   **Casing:** Ductile Iron 65-45-12
*   **Body Cover:** Ductile Iron 65-45-12

**Model 63E32-B**
*   **Casing:** Cast Steel 70-36
*   **Body Cover:** Cast Steel 70-36

### Seal Detail
*   **Type:** 21, Mechanical Self-Lubricated
*   **Rotating Face:** Carbon
*   **Stationary Face:** Ni-Resist
*   **Elastomers:** Fluorocarbon (DuPont Viton or Equivalent)
*   **Cage and Spring:** Stainless Steel 18-8
*   **Maximum Liquid Temperature:** 160°F (71°C) (Consult factory for applications exceeding this)

### 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 Basis (Curve Data)
*   **60 HERTZ:** Based on Water (Trimmed Impeller), Based on Petroleum (Trimmed Impeller)
*   **50 HERTZ:** Based on Water (Trimmed Impeller), Based on Petroleum (Trimmed Impeller)