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Graco 198778 Airside Diaphragm Plate

The Graco 198778 Plate Diaphragm Airside supports diaphragm stability on the air side.

  • OEM diaphragm airside support plate
  • Ensures balanced air pressure operation
  • Durable machined metal construction
  • Reduces diaphragm wear during cycles

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Compatible Machines

  • Graco diaphragm pump air chambers
  • Graco industrial pumping equipment
  • Graco professional fluid transfer systems
  • Graco coating and spraying machines

Product Overview

The Graco 198778 Plate Diaphragm Airside is a genuine OEM support plate. It stabilizes the diaphragm on the air side of the pump. Designed for balanced pressure and reliable diaphragm operation.

Specifications

Product Name Graco 198778 Plate Diaphragm Airside
Brand Graco
Part Type Diaphragm Support Plate
Material Machined metal alloy
Function Supports diaphragm air side
OEM Status Genuine Graco Replacement

Key Features

  • OEM airside plate ensures diaphragm stability
  • Machined metal for precise fitment
  • Balances air pressure across diaphragm
  • Reduces diaphragm wear during cycles
  • Supports consistent pump operation

Installation

Position plate on air side of diaphragm. Align with diaphragm center hole. Secure during housing reassembly.

Frequently Asked Questions

It supports and stabilizes the diaphragm air side.

Yes, it is a genuine OEM Graco component.

Replace if bent, worn, or damaged.

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