Graco 113032 Adapter Overview
The Graco 113032 1/4″ × 1/2″ NPT Adapter is a precision component designed to provide a secure, leak‑proof connection in high-pressure fluid systems. By converting between 1/4″ and 1/2″ NPT threads, it adapts hoses, valves, or manifolds with different port sizes. It is ideal for integration in airless sprayers, ram systems, and other industrial coating applications.
Key Features
- Durable construction: made from brass (or OEM‑grade metal) for corrosion resistance and long life
- Precision threads: 1/4″ NPT to 1/2″ NPT — ensures a tight, leak-resistant seal
- High-pressure rated: designed for demanding fluid delivery in commercial and industrial spray systems
- Compact size: easy to install and remove; minimizes downtime
Applications
This adapter is used in fluid delivery systems where a smaller (1/4″) line must connect to a larger (1/2″) NPT port, without losing pressure performance. Typical use‑cases include:
- Airless sprayer setups
- Ram (air-powered) pump bases
- High-pressure coating systems (e.g., urethane, latex, industrial coatings)
- Maintenance or retrofit work on legacy Graco equipment
Technical Specifications
| Specification |
Detail |
| Thread Sizes |
1/4″ NPT ↔ 1/2″ NPT |
| Material |
Brass (OEM grade) :contentReference[oaicite:0]{index=0} |
| Typical Pressure Rating |
High-pressure (fits in Graco ram and sprayer systems) :contentReference[oaicite:1]{index=1} |
Compatible / Known Machines
The Graco 113032 adapter is referenced in Graco ram and air-control system parts diagrams. Below are some of the **known machine contexts** where it is used:
- Graco Air‑Powered Ram Base & Air Cylinder (see parts list, manual 306934) :contentReference[oaicite:2]{index=2}
- Graco systems using the 237999 Air Control Conversion Kit (the adapter is used to connect control-valve ports) :contentReference[oaicite:3]{index=3}
- Ram units in Graco general‑industry supply systems (as shown in Graco parts/instruction manuals) :contentReference[oaicite:4]{index=4}
Installation & Maintenance Guidelines
- Use a **PTFE thread sealant** or compatible tape on the NPT threads to ensure a leak-free installation.
- Tighten using a torque wrench; avoid over-tightening to prevent thread damage.
- Inspect regularly for wear or corrosion, especially in high-cycle or high-pressure systems.
- When disassembling, clean threads and re-apply sealant before reassembly to maintain seal integrity.
Frequently Asked Questions
Graco does not publish a specific “PSI max” for the 113032 adapter in all sources, but it is used in **ram systems** and **high-pressure sprayers**, indicating it is rated for significant pressures. Always refer to your machine’s manual and part‑specifications for safe operating limits.
While the primary use is for fluid (coatings, paint) lines, the 113032 has also been referenced in **air control assemblies** (e.g., in the 237999 conversion kit), so it may serve in both contexts depending on your setup. :contentReference[oaicite:5]{index=5}
Technically, a generic 1/4″ × 1/2″ NPT adapter might work, but **using the genuine Graco 113032** ensures better thread-fit, material compatibility, and preserves OEM tolerances—especially important in high-pressure systems. Using non‑OEM parts could risk leaks, wear, or even void warranty in some systems.
