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Graco 112959 Viton Ball

The Graco 112959 Viton Ball is a durable FKM check-valve ball used in Graco AODD pumps for reliable chemical-resistant flow control.

  • OEM-grade Viton material
  • Designed for diaphragm pump check-valve assemblies
  • Supports one-way fluid flow
  • Fits Graco pumps listing part 112959 in their manuals

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Graco 112959 Viton Ball – Detailed Specifications & Compatibility

Compatible Machines

The Graco 112959 Viton Ball is used in Graco air-operated double diaphragm (AODD) pump models that specify this valve ball in their parts diagrams. Confirm compatibility by checking your machine’s parts manual.

  • Graco AODD diaphragm pumps requiring a Viton valve ball
  • Graco pumps listing part 112959 in their check-valve assembly
  • Aftermarket AODD pumps designed to accept OEM-equivalent 112959 Viton balls

Product Overview

The 112959 Viton Ball is a check-valve ball constructed from durable FKM/Viton, offering excellent chemical resistance for fluid-handling and pumping applications. It is commonly used in Graco diaphragm-pump valve assemblies to ensure proper one-way flow control.

Key Features

  • Constructed from high-quality Viton (FKM) material
  • Designed for chemical-resistant pumping environments
  • Used in internal pump check-valve assemblies
  • Fits select Graco AODD pump models (model-specific confirmation required)

Technical Information

Part Number 112959
Material Viton / FKM
Function Check-valve / one-way pumping ball
Common Use Graco AODD diaphragm pumps

Frequently Asked Questions

It functions as the check-valve ball inside Graco diaphragm pumps, maintaining proper one-directional flow during pump operation.

Check your machine’s parts manual or exploded-view diagram. If part 112959 appears in the valve-ball section, it is compatible.

Only if the pump is designed for Viton/FKM. Some pumps require EPDM, PTFE, or stainless-steel balls. Always follow the manufacturer’s specification.

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