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Irritrol R935001 3" replacement diaphragm assembly for 100P3 irrigation valve — nylon-reinforced EPDM double-beaded diaphragm.

Irritrol R935001 3" Diaphragm Assembly for 100P3 Valve

Brand: Irritrol
Save 28%
$153.59
$111.35
SKU R935001

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Replacement diaphragm assembly engineered for Irritrol 100 Series 3" (100P3) irrigation valves. Designed as a direct-fit service part, this assembly restores reliable valve operation and helps prevent leaks, sticking, and inconsistent flow caused by worn or damaged diaphragms. Manufactured to match original Irritrol specifications, it provides the durable sealing and flexible movement required for routine irrigation control and maintenance.

  • Direct compatibility: Fits Irritrol 100 Series 3" valves (model 100P3) as the OEM replacement diaphragm assembly.
  • Durable construction: Nylon-reinforced EPDM double-beaded diaphragm material for improved resistance to wear and pressure cycling.
  • Restores performance: Replaces worn diaphragms to resolve sticking, slow opening/closing, and minor leakage, returning valve timing and flow control to specification.
  • Easy serviceability: Simple field replacement—remove valve cover, swap the diaphragm assembly, reseat, and test—no special tools required for routine service.
  • Designed for irrigation: Built to perform with metering and internal-bleed configurations typical of the Century PLUS/100 Series valves.
  • Genuine Irritrol part: OEM part number R935001 ensures proper fit and function with compatible 100 Series components.

Ideal for landscape and commercial irrigation maintenance, the R935001 diaphragm assembly gives technicians and property owners a fast, reliable way to return 100P3 valves to consistent operation. Always follow valve manufacturer instructions and turn off system water before servicing. For questions about model compatibility or installation steps, consult Irritrol technical documentation or contact a qualified irrigation professional.

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Frequently Asked Questions

What valves is this diaphragm compatible with?
Compatible with Irritrol 100 Series 3" valves (model 100P3). It replaces the original R935001 diaphragm assembly.
How do I replace the diaphragm on a 100P3 valve?
Shut off water, remove the valve cover, swap in the R935001 diaphragm assembly, reseat the cover and test. Follow manufacturer instructions.
Will this diaphragm work with 102 anti-contamination models?
No. R935001 is for 100-series internal-bleed models. Use the appropriate 102-series part for anti-contamination valves.

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