INDUSTRY COMPONENT

Fitting Body

A compression fitting body that connects tubing to systems in industrial machinery.

Component Specifications

Definition
The fitting body is the main structural component of a compression fitting, designed to securely join tubing or pipes in fluid and pneumatic systems. It provides a leak-proof connection by compressing a ferrule against the tubing when tightened, creating a permanent mechanical seal without requiring welding or threading.
Working Principle
The fitting body works by housing a ferrule and nut assembly. When the nut is tightened onto the body, it forces the ferrule to compress radially onto the tubing, creating a tight seal between the tubing outer surface and the fitting body's internal taper. This compression creates both a mechanical grip and a fluid seal.
Materials
Typically made from brass, stainless steel (304/316), carbon steel, or plastic (PTFE, nylon). Material selection depends on application requirements including pressure, temperature, and fluid compatibility.
Technical Parameters
  • Tube Sizes 1/8" to 2" (3mm to 50mm)
  • Thread Types NPT, BSPP, BSPT, SAE
  • Surface Finish Ra 32 µin (0.8 µm) or better
  • Pressure Rating Up to 10,000 psi (690 bar)
  • Temperature Range -65°F to 450°F (-54°C to 232°C)
Standards
ISO 8434-1, DIN 2353, SAE J514

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Fitting Body.

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Over-tightening can damage tubing
  • Improper tube preparation causes leaks
  • Material incompatibility with fluids
  • Vibration-induced loosening
FMEA Triads
Trigger: Improper installation torque
Failure: Leakage or tubing damage
Mitigation: Use torque wrenches and follow manufacturer specifications
Trigger: Vibration in system
Failure: Connection loosening over time
Mitigation: Use vibration-resistant designs with locking features
Trigger: Material fatigue
Failure: Cracking or fracture under cyclic loading
Mitigation: Regular inspection and replacement schedules

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.005 inches (±0.127mm) on critical dimensions
Test Method
Pressure testing per ISO 19879, helium leak testing, torque-to-failure testing

Buyer Feedback

★★★★☆ 4.6 / 5.0 (34 reviews)

"Testing the Fitting Body now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Fitting Body meets all ISO standards."

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Frequently Asked Questions

What is the difference between single ferrule and double ferrule compression fittings?

Single ferrule fittings use one ferrule that both seals and grips the tubing. Double ferrule fittings use two ferrules - the front ferrule creates the seal while the back ferrule provides the grip, offering better vibration resistance and reusability.

Can compression fitting bodies be reused?

The fitting body itself can typically be reused if undamaged, but ferrules should be replaced with each installation as they deform during compression to create the seal.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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