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Graco 188857 Santoprene Diaphragm for Husky 1040

High‑performance Santoprene diaphragm for Graco 1040 series pumps.

  • Santoprene elastomer for long life
  • Fits Husky and SaniForce 1040 pumps
  • Improved chemical and wear resistance
  • Essential fluid barrier component

$63.69
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Reliable Santoprene Diaphragm: Graco 188857

  • Graco Husky 1040 – air‑operated diaphragm pump replacement diaphragm
  • Graco SaniForce 1040 – compatible sanitary diaphragm pump

Product Overview

The Graco 188857 Santoprene Diaphragm is a flexible, durable elastomer diaphragm designed to separate the air and fluid sections inside Graco diaphragm pumps. Its Santoprene construction improves resistance to wear, fatigue, and chemicals while maintaining smooth, reliable pumping action in demanding applications.

Key Features

Feature Detail
Part Number 188857
Material Santoprene thermoplastic elastomer
Use Replaces diaphragm in compatible 1040 pump models
Performance Improved fatigue and chemical resistance

Installation & Usage Tips

  • Always release pump air and fluid pressure before disassembly.
  • Inspect housing seals and O‑rings while replacing the diaphragm.
  • Lubricate mating surfaces lightly before installation for smoother seating.

Frequently Asked Questions

This diaphragm is made from Santoprene thermoplastic elastomer, chosen for flexibility, wear resistance, and good chemical compatibility.

Replacement depends on usage intensity and fluid abrasiveness; inspect regularly for wear or cracks and replace if pumping performance degrades.

It fits most standard 1040 series diaphragm pumps, but verify your exact model before ordering.

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