Graco 15B501 FDA Viton 1590 Diaphragm

Graco 15B501 FDA Viton 1590 Diaphragm – Product Details & Compatibility

Compatible Machines

The Graco 15B501 FDA Viton 1590 Diaphragm is engineered for use in the fluid chamber of the Graco Husky 1590 (and equivalent 1590‑series sanitary/food‑grade variants) air‑operated double‑diaphragm (AODD) pumps, where a high‑performance Viton elastomer is required. Suitable applications include:

• Graco Husky 1590 AODD pumps in metal or FDA‑rated sanitary configurations
• Pump systems in food & beverage, pharmaceutical, chemical transfer or sanitary fluid‑handling applications specifying the 1590 series
• Replacement or maintenance kits targeting high‑cycle service life in demanding environments

Product Overview

The Graco 15B501 FDA Viton 1590 Diaphragm is a genuine OEM diaphragm manufactured from FDA‑compliant Viton (fluoroelastomer) for the 1590 series. It delivers exceptional chemical resistance, elastic durability and consistent chamber motion under frequent cycling conditions. With this part installed you restore the pump’s designed stroke, ensure proper fluid/air separation, and maintain reliable sealing and performance even in harsh or sanitary service conditions.

Key Features

• Viton (fluoroelastomer), FDA‑rated for high chemical resistance and longevity
• Manufactured to OEM tolerances for the 1590 series to ensure correct fit and performance
• Designed to withstand high‑cycle usage common in industrial and sanitary pump systems
• Provides reliable chamber displacement, fluid isolation and prevents air intrusion or fluid cross‑contamination
• Ideal for sanitary or food‑grade systems requiring fluid‑contact compliance and robust performance

Technical Specifications

Usage Notes

• Before removal or installation, ensure the pump is fully depressurized and disconnected from fluid supply to avoid injury or damage.
• Inspect diaphragm chambers, seating surfaces and mating components for signs of wear, corrosion or debris prior to installing the new diaphragm.
• Clean all surfaces, align the diaphragm correctly and install per OEM guidance to ensure proper stroke, sealing and reliability.
• After installation, run a system test cycle under normal operating conditions to verify chamber movement, flow performance and absence of leaks.
• Replace the diaphragm if you notice any cracking, extrusion, permanent deformation, air intrusion on the fluid side, reduced flow or pressure performance — delayed replacement may lead to more extensive pump repair.

Frequently Asked Questions