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
| Part Number | 01012B |
| Product Type | U-Cup Packing Seal |
| Material | Buna (Nitrile Rubber) |
| Outer Diameter (OD) | 3 inches |
| Inner Diameter (ID) | 2.25 inches |
| Application | Sealing pistons and rods in fluid handling systems |
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
It acts as a sealing component that prevents fluid leaks and maintains pressure in pumps and fluid handling systems.
It is made from Buna (Nitrile rubber), known for its durability and resistance to oils and chemicals.
Check that your equipment requires a U-cup seal with 3" outer diameter and 2.25" inner diameter along with Buna material.
Yes, it is commonly used across diaphragm pumps, transfer pumps, and other fluid handling equipment that match its size and material specifications.
