About the Graco 112348 Regulator Diaphragm
Compatible Machines / Regulators
- • Graco Regulator Model 238159 (Series A)
- • Graco Regulator Model 236281 (Series A)
- • Other compatible Fluid Pressure Regulators covered under Graco Manual 308325
Product Overview
The Graco 112348 Regulator Diaphragm is a high-quality replacement part designed for use in Graco’s Fluid Pressure Regulators and Back-Pressure Regulators. This diaphragm plays a critical role in maintaining consistent pressure control within low-pressure fluid systems. Manufactured from nylon-fabric reinforced Buna-N material, it ensures excellent flexibility, chemical resistance, and long-lasting durability in industrial spray and fluid applications.
Technical Specifications
| Part Number | 112348 |
| Part Type | Regulator Diaphragm |
| Material | Nylon Fabric / Buna-N Base |
| Used With | Fluid & Back-Pressure Regulators |
| Pressure Range | 3 – 100 psi (0.02 – 0.7 MPa / 0.2 – 7 bar) |
| Included In | Repair Kit 236589 |
| Typical Applications | Paint Sprayers, Sealant Pumps, Industrial Coating Systems |
Key Features & Benefits
- • Precision-engineered for optimal pressure regulation in Graco systems.
- • Durable Buna-N / nylon-fabric construction provides excellent wear and chemical resistance.
- • Maintains consistent fluid flow and output pressure in demanding applications.
- • Easy to install as a direct replacement part for supported regulator models.
- • Helps reduce system downtime and extend overall equipment life.
Frequently Asked Questions
It acts as a flexible barrier inside the pressure regulator, allowing the regulator to maintain and control consistent output pressure for fluid or air systems.
The diaphragm fits Graco Regulator Models 238159 (Series A), 236281 (Series A), and other regulators specified in Graco Manual 308325 for low-pressure fluid control systems.
The Buna-N (Nitrile) base offers good compatibility with oils and many fluids, but it may not be ideal for highly aggressive solvents or acids. Always check chemical compatibility before installation.
Yes. It can be replaced by following the steps in the corresponding Graco service manual. Make sure the system is depressurized before performing any maintenance.
Note: Always verify your regulator’s exact model and series before ordering replacement parts to ensure compatibility.
