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Graco 157944 Fluid Piston Valve Housing

The Graco 157944 Fluid Piston Valve Housing provides secure housing for piston and valve assemblies in fluid-handling and spray systems, ensuring reliable operation and precise fluid control.

  • Part Number: 157944
  • Type: Fluid Piston Valve Housing
  • Compatible Machines: Reactor H-25, H-40, H-XP2, Piston Transfer Pump, Industrial Fluid Modules
  • Application: Spray foam, adhesive, and industrial fluid systems

$195.48
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Graco 157944 Fluid Piston Valve Housing – Overview & Compatible Machines

The Graco 157944 Fluid Piston Valve Housing is a precision replacement housing designed for piston-valve assemblies in high-performance fluid and spray systems. It houses the piston and valve components, ensuring correct alignment and structural integrity in your equipment.

Compatible Machines

Below is a list of Graco machines that typically use this piston valve housing. Verify your model and serial number before installation.

Machine Model Category Application
Graco Reactor H-25 Spray Foam / Adhesive Fluid Handling & Dispensing
Graco Reactor H-40 Spray Foam / Adhesive Fluid Handling & Dispensing
Graco Reactor H-XP2 Spray Foam / Adhesive Fluid Handling & Dispensing
Graco Piston Transfer Pump Industrial Pump Fluid Transfer / Coatings
Graco Fluid Section Modules Industrial Pump Piston-Valve Assembly

Key Features & Application

  • Part Number: 157944
  • Type: Fluid Piston Valve Housing
  • Function: Structural housing for piston and valve assembly
  • Application: Spray foam, adhesive, industrial fluid pumps
  • Note: Verify compatibility via machine parts breakdown

Installation & Notes

  • Isolate and relieve all system pressure before servicing.
  • Refer to the equipment parts manual to locate the piston valve housing and ensure correct orientation.
  • Inspect seals, O-rings, and mounting bolts; replace if worn.
  • Perform a test run after installation to confirm correct fluid flow and valve operation.

Technical Specifications

Specification Details
Part Number 157944
Component Type Fluid Piston Valve Housing
Intended Use Housing for piston/valve assembly in fluid section or pump
Compatible Machine Types Spray foam/adhesive rigs, piston transfer pumps, industrial fluid modules
Fit-Check Recommendation Verify via machine parts list & serial number

Frequently Asked Questions

No — compatibility depends on geometry, mounting, and seal interface. Always check your machine’s parts breakdown and serial number to confirm part 157944 is correct.

Ensure the existing housing is correct, remove fluid and pressure, verify mounting surfaces and seals, and perform a post-installation test for proper flow and operation.

Only if your machine’s parts breakdown shows identical housing dimensions, bolt pattern, and interface. Using it without confirmation may cause leaks or damage. Contact a Graco distributor for verification.

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