IFAN Custom Brass Compression Fittings

Understanding Compression Fitting Sealing Principles

Brass compression fittings create seals through mechanical compression rather than chemical bonding. The compression ring (olive) deforms against the pipe and fitting body. This creates a metal-to-metal seal that prevents leaks. No additional sealants are typically needed for proper installations. The sealing effectiveness depends on proper installation technique and component quality.

Standard Installation Without Sealants

Professional plumbers usually install brass compression fittings dry. The compression mechanism provides complete sealing when properly tightened. Adding sealants can actually interfere with the compression process. The deformed olive creates a perfect seal against clean metal surfaces. This method works for water, gas, and hydraulic applications when done correctly.

When Sealants Become Necessary

Certain situations require sealant application:

• Slightly damaged pipe surfaces
• Older fittings being reused
• High-vibration environments
• Extreme temperature applications
• Where additional security is desired
  Even then, plumbers use sealants sparingly to avoid problems. The sealant should complement rather than replace proper compression.

Approved Thread Sealant Types

When needed, plumbers use these sealants:

• PTFE tape (for threaded components only)
• Pipe thread compound (non-hardening)
• Anaerobic thread sealant
• Specialty high-temperature compounds
  Never use hard-setting compounds that prevent future disassembly. Choose sealants compatible with brass compression fittings.

Proper Sealant Application Methods

Correct application ensures effectiveness:

• Apply only to male threads
• Use thin, even coatings
• Avoid contaminating compression surfaces
• Follow manufacturer directions
• Clean excess immediately
  Improper application causes more problems than it solves. The compression surfaces must remain clean and dry.

Materials to Avoid Completely

Never use these products:

• Teflon tape on compression surfaces
• Hard-setting pipe compounds
• Solvent-based adhesives
• Silicone sealants
• Any product that prevents metal-to-metal contact
  These materials can prevent proper compression and cause failures. They may also contaminate systems.

Professional Tips for Perfect Seals

Experienced plumbers recommend:

• Always use new compression rings
• Polish pipe ends to mirror finish
• Ensure perfect perpendicular cuts
• Use calibrated torque wrenches
• Pressure test before concealment
  These practices ensure reliable seals without additional sealants in most applications.

When to Consider Alternative Fittings

Sometimes other fitting types work better:

• Soldered joints for permanent connections
• Flared fittings for high vibration
• Welded connections for high pressure
• Push-fit fittings for temporary installations
  Choose the right connection method for each specific application and condition.

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