Graco 01012B U-Cup Packing 3" OD x 2.25" ID Buna

Compatible Machines & Applications

The Graco 01012B U-Cup Packing is a size-based sealing component, meaning it is used across multiple machines that require the same dimensions and material specifications.

• Graco diaphragm pumps
• Graco fluid transfer pumps
• Graco industrial coating systems
• Graco dispensing equipment
• Graco oil and lubrication pumps
• Graco chemical handling pumps
• Displacement pumps requiring 3" OD × 2.25" ID seals

Product Overview

The Graco 01012B U-Cup Packing is a high-performance sealing solution designed for maintaining pressure and preventing leaks in fluid handling systems. Manufactured from Buna (Nitrile rubber), it offers excellent resistance to oils, fuels, and common industrial fluids.

Its U-shaped lip design allows the seal to expand under pressure, ensuring a tighter seal during operation. This makes it ideal for use in reciprocating components such as pistons and rods within pumps and dispensing systems.

Key Features

Performance Benefits

• Helps prevent fluid leakage and maintain system pressure
• Durable Buna material provides strong chemical and oil resistance
• Self-energising lip design improves sealing under pressure
• Reduces wear on internal components
• Suitable for demanding industrial environments

Installation & Compatibility Notes

• Ensure seal dimensions match your equipment requirements
• Verify compatibility with fluid type before installation
• Inspect sealing surfaces for wear or damage
• Install with proper orientation of the U-cup lip

Frequently Asked Questions