Graco 15A148 Diaphragm Cover

Graco 15A148 Diaphragm Cover – Complete Overview

The Graco 15A148 Diaphragm Cover is a genuine OEM replacement component designed for diaphragm‑type regulator or pump modules used in high‑pressure fluid systems. Its precision manufacturing, robust construction and exact fit help protect the diaphragm housing, maintain sealing integrity, and ensure long‑term, reliable performance in demanding industrial environments.

Compatible Applications

• Graco diaphragm regulator modules and pump assemblies specified to use part number 15A148.
• High‑pressure fluid systems in coating, adhesive, sealant or dispensing setups that rely on diaphragm‑type housings.
• Industrial spray, processing and fluid‑handling equipment needing durable cover protection for diaphragm chambers under repeated cycles.

Key Features & Benefits

• Exact OEM Fit: Built to match the original Graco dimensions and mounting points for flawless alignment and sealing.
• High‑Strength Construction: Manufactured from premium materials that resist cyclic stress, corrosion and high‑pressure exposure.
• Sealing Performance: Maintains a secure barrier around the diaphragm housing to reduce risk of leaks, contamination ingress and performance loss.
• Ease of Service: Designed for straight‑forward replacement during maintenance, helping minimize downtime and simplify rebuilds.
• Long‑Term Reliability: Ensures the diaphragm housing performs as intended — avoiding the risks associated with non‑OEM substitutes that may not meet the same specifications.

Technical Specifications

Installation & Maintenance Tips

• Ensure the system is fully depressurized and isolated before removing the existing cover.
• Clean the seating surface of the diaphragm housing thoroughly to remove old sealant, debris or any damage that might compromise sealing.
• Inspect the new 15A148 cover for visual defects and ensure proper orientation during installation.
• Install the cover with correct alignment and secure fasteners to the manufacturer’s torque specification to ensure uniform sealing pressure.
• During scheduled maintenance, inspect the cover and surrounding housing for signs of wear, corrosion or fatigue, and replace when necessary to maintain optimal system performance.

Frequently Asked Questions