Dayton Diaphragm: Santoprene, 1 in For Pump Size, 0°F to 180°F
SKU 3G-OTH-86028
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is the DAYTON 771974 diaphragm used for?
The DAYTON 771974 is a Santoprene replacement diaphragm designed for 1-inch pump sizes. It is commonly used in industrial fluid-handling systems where chemical resistance and flexibility are required within a temperature range of 0°F to 180°F.
What are the specifications of the DAYTON 771974 diaphragm?
The DAYTON 771974 diaphragm is made of Santoprene, fits a 1-inch pump size, and operates from 0°F to 180°F. The manufacturer part number is 771974. It is a replacement part for compatible Dayton pumps.
Where to buy the DAYTON 771974 diaphragm worldwide?
You can source the DAYTON 771974 diaphragm through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations, ensuring the part reaches your facility reliably.
How to install the DAYTON 771974 diaphragm?
To install the DAYTON 771974 diaphragm, first depressurize the pump and remove the pump head. Replace the old diaphragm with the new Santoprene unit, ensuring proper alignment. Reassemble the pump and test for leaks before returning to service.
Used in
Common applications for DaytonDayton Products
3G Electric supplies Dayton dayton replacement diaphragms. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















