---
title: Gorman-Rupp Standard Centrifugal Pump 63E31-B & 63E32-B Specifications
doc_type: Technical Specification
tags: [63E31-B, 63E32-B, Centrifugal Pump, Sec. 70]
summary: This document provides detailed specifications, seal details, dimensions, weights, and performance notes for Gorman-Rupp Standard Centrifugal Pump models 63E31-B and 63E32-B, dated October 2023.
---
**Document Details**
*   **Section:** 70
*   **Date:** October 2023

**Basic Pedestal Models**
*   **Models:** 63E31-B, 63E32-B
*   **Size:** 4” x 3” Flanged (102 mm x 76 mm)

**Pump Specifications**
*   **Casing (63E31-B):** Ductile Iron 65-45-12
*   **Casing (63E32-B):** Cast Steel 70-36
*   **Maximum Operating Pressure:** 179 psi (1234 kPa)
    *   *Note:* Consult factory for applications exceeding maximum pressure and/or temperature.
*   **Impeller Type:** Enclosed, Five Vane
*   **Impeller Material:** Alum 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 Material:** Buna-N
*   **Hardware Material:** Standard Plated Steel

**Optional Equipment**
*   **Flange Kit:** 150# Steel 4” NPT Suction and 3” NPT Discharge
*   **Impeller:** Copper Alloy C93400
*   **Seal:** PTFE

**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)
    *   *Note:* Consult factory for applications exceeding maximum pressure and/or temperature.

**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 Data 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