SANDPIPER HDF3Sandpiper Replacement Diaphragms

SANDPIPER HDF3 Buna-N Diaphragm, 3 in/4 in, -10°F to 190°F, 2 PK

SANDPIPER HDF3 Sandpiper Replacement Diaphragms. Specifications: Type: 3 in_4 in For Pump Size, -10°F to 190°F, 2 PK.

SKU 3G-OTH-86353

Also listed as: 286018360 · 286 018 360 · 286-018-360

Brand

SANDPIPER HDF3

Item

Buna-N Diaphragm, 3 in/4 in, -10°F to 190°F, 2 PK

Part Number

286.018.360

Local availability & support

Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SANDPIPER HDF3

Manufacturer Part Number

286.018.360 

Type

3 in_4 in For Pump Size, -10°F to 190°F, 2 PK 

Technical Documents

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SANDPIPER HDF3 Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

SANDPIPER HDF3 Sandpiper Replacement Diaphragms. Specifications: Type: 3 in_4 in For Pump Size, -10°F to 190°F, 2 PK.

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 HDF3

Chemical processing — Neoprene diaphragms (SKU 408LL2) for HDF3 pumps handling mild chemicals within -10°F to 200°F.

Oil and gas — Buna-N diaphragms (SKU 408LK9) for HDF3 pumps transferring petroleum-based fluids up to 190°F.

Water treatment — Santoprene diaphragms (SKU 408LK7) for HDF3 pumps in abrasive slurry or wastewater applications.

General industrial maintenance — Neoprene diaphragms (SKU 408LL0) as replacement wear parts for HDF3 and HDF4 pumps.

Food and beverage — Santoprene diaphragms (SKU 408LK7) for HDF3 pumps where non-toxic, flexible elastomers are required.

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SANDPIPER 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.

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