Graco 15A835 Packing Nut

Graco 15A835 Packing Nut – Product Overview

Compatible Systems

Product Description

The Graco 15A835 Packing Nut is a critical maintenance component that secures the packing stack and gland assembly in precision‑valve and pump equipment. By properly clamping the packing elements, the nut maintains a fluid‑tight seal around moving rods or stems, preventing leakage while allowing motion under high pressure.

Built to meet exacting standards, the 15A835 nut ensures consistent sealing performance, supports reliable operation in demanding systems, and makes servicing faster and more effective. Proper torqueing of the nut is essential to achieving the correct compression of the packing stack and maintaining long‑term integrity of the valve or pump unit.

Key Features

• Designed to clamp packing‑stack assemblies precisely for reliable sealing.
• Durable construction to withstand repeated maintenance cycles and high‑pressure environments.
• Specifically engineered for ease of removal and replacement during service.
• Ensures correct alignment of internal packing and gland components to prevent leakage or rod damage.
• Compatible with repair kits for extending service life of valve or pump modules.

Technical Specifications

Installation & Maintenance Tips

• Always depressurize and isolate the system before loosening or tightening the packing nut.
• Remove the existing nut and inspect the packing stack for wear, contamination or damage.
• Install the 15A835 nut after correctly placing the packing elements, then torque it to the manufacturer’s recommended value to ensure proper compression.
• During maintenance checks, monitor for packing leakage around the nut; if leakage occurs, verify proper torque and inspect internal components for wear.
• Replace the packing nut if threads are worn, damaged or the nut cannot securely clamp the packing stack to maintain seal performance.

Frequently Asked Questions