Gorman-Rupp Replacement Diaphragms
Gorman-Rupp Replacement Diaphragms for 2″, 3″ & 4″ Diaphragm Pumps are available through Ken’s Distributing for construction dewatering, municipal utility work, agricultural water transfer, industrial pumping, slurry handling, and flood-control applications. Ken’s Distributing supplies Gorman-Rupp pump diaphragms in rubber, neoprene, and Buna/nitrile materials for commonly used Gorman-Rupp diaphragm pump models.
Use your Gorman-Rupp pump model, diaphragm part number, pump size, and fluid application to identify the correct replacement. Individual diaphragms and bulk quantities are available, with bulk discounts beginning at 15 units or more for qualifying contractors, distributors, and businesses.
Gorman-Rupp Diaphragm Pump Parts for 2″, 3″ & 4″ Pumps
The diaphragm is a critical wear component in a Gorman-Rupp diaphragm pump. It forms a flexible barrier between the pump’s mechanical components and the fluid chamber while creating the suction and discharge action needed to move water, slurry, sediment, and suspended solids.
Because the diaphragm repeatedly flexes during operation, selecting the correct replacement size and material is important for pump performance, service life, and dependable operation.
Ken’s Distributing supplies Gorman-Rupp replacement diaphragms for commonly used 2 inch, 3 inch, and 4 inch diaphragm pumps, along with technical assistance for model and material selection.
Why Choose Gorman-Rupp Replacement Diaphragms from Ken’s Distributing?
- Replacement diaphragms for specific Gorman-Rupp diaphragm pump models
- Heavy-duty materials for demanding construction and industrial applications
- Rubber, neoprene, and Buna/nitrile material options depending on size and application
- Options for clean water, sediment-laden water, slurry, and petroleum-contaminated fluids
- Bulk-order pricing for qualifying contractors, distributors, and businesses
- Technical assistance using Gorman-Rupp model numbers, part numbers, and application details
Common Applications for Gorman-Rupp Diaphragm Pumps
Gorman-Rupp diaphragm pumps are used across construction, municipal, agricultural, and industrial environments where dependable positive-displacement pumping is required.
- Construction dewatering: Removing groundwater, standing water, trench water, and sediment-laden water from active jobsites.
- Municipal and utility maintenance: Supporting temporary water removal, infrastructure maintenance, and utility projects.
- Agricultural water transfer: Moving irrigation water, drainage water, and other water-based fluids.
- Industrial fluid and slurry transfer: Handling process water, slurry, and selected industrial fluids according to diaphragm material requirements.
- Flood and bypass pumping: Supporting temporary flood response, water removal, and bypass operations.
Gorman-Rupp Replacement Diaphragm Sizes and Part Numbers
Ken’s Distributing supplies replacement diaphragms for specific Gorman-Rupp pump models in multiple sizes and materials. Always confirm the Gorman-Rupp model and diaphragm part number before ordering.
Gorman-Rupp 4 Inch Replacement Diaphragm
Part Number: S-1017
Size: 3″ x 4″
Material: Rubber
Gorman-Rupp Pump Models
- 4D-B
- 4D-E3 3P
- 4D-X3 1P
- 4D-X3 3P
Application
This heavy-duty rubber diaphragm is used in the listed 4 inch Gorman-Rupp diaphragm pump models for applications involving construction water, sediment, debris, and abrasive fluids.
Confirm model and part-number requirements before ordering.
Gorman-Rupp 3 Inch Replacement Diaphragm
Part Number: S-0701
Size: 2″ x 3″
Materials Available: Neoprene and Buna/Nitrile
Gorman-Rupp Pump Models
- 3D-B
- 3D-E1.5 1P
- 3D-E1.5 3P
- 3D-X1.5 1P
- 3D-X1.5 3P
Application
This replacement diaphragm is used in the listed 3 inch Gorman-Rupp pump models for construction, agricultural, municipal, and industrial water-transfer applications.
Neoprene is commonly selected where abrasion resistance and outdoor durability are important. Buna/nitrile is commonly selected for applications involving oil, fuel, or petroleum-contaminated fluids.
Gorman-Rupp 2 Inch Replacement Diaphragm
Part Number: 26812-711
Size: 2″ x 2″
Materials Available: Neoprene and Buna/Nitrile
Gorman-Rupp Pump Models
- 2D-E.50 1P
- 2D-E.50 3P
- 2D-X.75 1P
- 2D-X.75 3P
Application
This replacement diaphragm is used in the listed 2 inch Gorman-Rupp pump models for construction dewatering, utility work, light industrial pumping, and general water-transfer applications.
Confirm the Gorman-Rupp pump model, diaphragm part number, and required material before ordering.
How to Choose the Right Gorman-Rupp Diaphragm Material
The correct diaphragm material depends on the fluid being pumped and the conditions in which the Gorman-Rupp pump operates.
Rubber Diaphragms
Rubber is a practical, cost-effective option for clean water, groundwater, muddy water, and general dewatering applications where petroleum and aggressive chemical exposure are minimal.
Common applications include:
- Construction dewatering
- Groundwater removal
- Muddy or sediment-laden water
- General water transfer
Neoprene Diaphragms
Neoprene is a strong general-purpose diaphragm material for construction, outdoor pumping, slurry, and water-transfer applications where abrasion resistance and weather durability are important.
Common applications include:
- Construction dewatering
- Outdoor pumping
- Sediment-laden water
- General slurry handling
- Municipal and utility applications
Buna/Nitrile Diaphragms
Buna/nitrile is commonly selected when the fluid contains oil, fuel, lubricants, petroleum residue, or other hydrocarbon contamination.
Common applications include:
- Oily wastewater
- Fuel-contaminated groundwater
- Petroleum-containing process water
- Industrial fluid-transfer applications
If you are unsure which diaphragm material is appropriate, contact Ken’s Distributing with your Gorman-Rupp pump model and a description of the fluid being pumped.
How to Identify the Correct Gorman-Rupp Replacement Diaphragm
Use the specific Gorman-Rupp pump model and diaphragm part number when selecting a replacement. Nominal pump size alone should not be used to identify a diaphragm.
Useful information includes:
- Gorman-Rupp pump model number
- Existing diaphragm part number, if available
- Nominal pump size
- Existing diaphragm material
- Fluid being pumped
- Operating environment
If the pump identification plate cannot be read, provide Ken’s Distributing with photographs of the pump, existing diaphragm, drive arrangement, and any visible part or casting numbers.
Gorman-Rupp Diaphragm Replacement and Maintenance Tips
Regular inspection can help identify diaphragm wear before it causes significant loss of pump performance or additional repair requirements.
Inspect your Gorman-Rupp diaphragm if you notice:
- Cracking, dry rot, hardening, or visible surface damage
- Longer-than-normal priming time
- Reduced displacement or flow
- Irregular pump cycling
- Leakage around the diaphragm housing
- Visible deformation or deterioration of the diaphragm
When servicing the diaphragm:
- Confirm the Gorman-Rupp model and replacement diaphragm part number before installation.
- Select the diaphragm material according to the fluid and operating environment.
- Inspect check valves, flappers, valve seats, and other wear components during diaphragm service.
- Clean diaphragm mounting surfaces before installing the replacement.
- Tighten clamping hardware evenly according to the service procedure for the specific Gorman-Rupp pump model.
Inspection frequency should be based on pump usage, fluid conditions, abrasion, operating hours, and manufacturer maintenance recommendations rather than a single universal service interval.
Gorman-Rupp Pump Configurations We Support
Ken’s Distributing supplies replacement diaphragms for Gorman-Rupp diaphragm pumps used in a variety of drive configurations and operating environments.
- Electric-motor-driven Gorman-Rupp diaphragm pumps
- Engine-driven Gorman-Rupp diaphragm pumps
- Construction dewatering and trench pumps
- Municipal and utility maintenance equipment
- Agricultural water-transfer applications
- Industrial water and slurry pumping applications
If you do not see your Gorman-Rupp model listed above, contact Ken’s Distributing with the complete pump model number for assistance identifying the appropriate replacement diaphragm.
Bulk Pricing for Gorman-Rupp Replacement Diaphragms
Contractors, distributors, municipalities, rental operations, and businesses maintaining multiple Gorman-Rupp diaphragm pumps can reduce downtime by keeping frequently used replacement diaphragms in inventory.
Ken’s Distributing offers bulk discounts beginning at 15 diaphragms or more for qualifying orders.
For bulk pricing, provide your Gorman-Rupp pump model, diaphragm part number or size, required material, and quantity.
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Why Order Gorman-Rupp Diaphragms from Ken’s Distributing?
- Replacement diaphragms identified by Gorman-Rupp model and part number
- Rubber, neoprene, and Buna/nitrile material options
- Technical assistance with diaphragm size and material selection
- Bulk discounts beginning at 15 units or more
- Support for contractors, distributors, municipalities, and businesses
- Shipping throughout the United States and Canada
Shop Replacement Diaphragms by Material
Frequently Asked Questions About Gorman-Rupp Replacement Diaphragms
How do I find the correct Gorman-Rupp diaphragm for my pump?
Start with the complete Gorman-Rupp model number and existing diaphragm part number if available. Compare that information with the model and part-number information above or contact Ken’s Distributing for assistance.
What is the Gorman-Rupp 4 inch replacement diaphragm part number?
The 4 inch Gorman-Rupp pump models listed above use replacement diaphragm part number S-1017. Confirm your exact Gorman-Rupp model before ordering.
What is the Gorman-Rupp 3 inch replacement diaphragm part number?
The 3 inch Gorman-Rupp pump models listed above use replacement diaphragm part number S-0701. Available material options include neoprene and Buna/nitrile.
What is the Gorman-Rupp 2 inch replacement diaphragm part number?
The 2 inch Gorman-Rupp pump models listed above use replacement diaphragm part number 26812-711. Confirm the required material and complete pump model before ordering.
Which Gorman-Rupp diaphragm material should I choose?
The material depends on the fluid and operating environment. Rubber is commonly used for water and general dewatering, neoprene for construction and outdoor applications where additional abrasion and weather resistance are useful, and Buna/nitrile for applications involving petroleum oils, fuels, or hydrocarbon contamination.
When should I replace a Gorman-Rupp diaphragm?
Inspect the diaphragm when pump performance changes or when visible cracking, hardening, deformation, leakage, or surface damage appears. Service life varies according to operating hours, material, fluid conditions, abrasion, and maintenance practices.
Is bulk pricing available for Gorman-Rupp replacement diaphragms?
Yes. Ken’s Distributing offers bulk discounts beginning at 15 diaphragms or more for qualifying orders. Contact Ken’s Distributing with your pump model, diaphragm requirements, and quantity for pricing information.
Do you ship Gorman-Rupp replacement diaphragms to Canada?
Yes. Ken’s Distributing ships replacement diaphragms throughout the United States and Canada. Contact Ken’s Distributing for shipping information on larger or recurring orders.