SANDPIPER HDF3 & HDF4 3" Buna Diaphragm: Buna-N, 3 in_4 in For Pump Size
SKU 3G-OTH-86353
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Frequently Asked Questions
What is the SANDPIPER HDF3 diaphragm used for?
The SANDPIPER HDF3 Buna-N diaphragm is a replacement part for Sandpiper HDF3 and HDF4 air-operated double-diaphragm pumps. It is used in industrial fluid-handling applications requiring chemical resistance and flexibility, such as transferring abrasive slurries, viscous liquids, or corrosive fluids in chemical, mining, and wastewater plants.
What are the specifications of the SANDPIPER HDF3 diaphragm?
This diaphragm is made of Buna-N (Nitrile) material, fits 3-inch and 4-inch pump sizes, and operates in a temperature range of -10°F to 190°F. The manufacturer part number is 286.018.360, and it comes in a pack of 2. It is designed as a direct replacement for Sandpiper HDF3 and HDF4 pumps.
Where to buy SANDPIPER HDF3 diaphragms worldwide?
You can source SANDPIPER HDF3 Buna-N diaphragms worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this replacement part.
How to install SANDPIPER HDF3 diaphragms?
To install, first depressurize the pump and remove the outer chamber. Align the new Buna-N diaphragm with the piston rod, ensuring the bolt holes match. Tighten the fasteners evenly in a cross pattern to the manufacturer's torque spec. Reassemble the chamber and test for leaks before returning to service.
Used in
Common applications for SANDPIPER HDF3SANDPIPER HDF3 Products
3G Electric supplies SANDPIPER HDF3 sandpiper replacement diaphragms. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
