Key Features
- Flareless design eliminates need for tube flaring – faster installation
- High-quality brass construction for durability and corrosion resistance
- Precision PF 1/8 threads for secure, leak-proof connections
- Compatible with 4mm OD tubing (copper, steel, nylon)
- Ideal for marine hydraulic, pneumatic, fuel, and cooling systems
Technical Specifications
| Specification | Value |
|---|---|
| Type | Flareless Union (Straight Connector) |
| Tube Outer Diameter | 4 mm |
| Thread | PF 1/8 (BSPP) |
| Material | Brass |
| Connection Style | Flareless (compression type) |
| IMPA Code | 734021 |
Frequently Asked Questions
What does flareless mean?
A flareless fitting does not require the tube end to be flared before assembly. A compression ring (ferrule) grips the tube to create a leak-tight seal.
Is this fitting suitable for high-pressure systems?
Yes, brass flareless unions are commonly used in medium-pressure marine hydraulic and pneumatic systems. Always check the manufacturer's pressure rating for your specific application.
What type of tubing can be used?
This fitting works with 4mm OD tubing, including copper, brass, steel, and nylon. Ensure the tube wall thickness is appropriate for the system pressure.
Is the thread PF 1/8 compatible with NPT?
PF (BSPP) threads are parallel and not directly interchangeable with NPT (tapered). Use appropriate adapters if connecting to NPT ports.
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