Typical service life is 20-30 years
Brass Press Fittings have rubber seals that last 20-30 years. This is the standard for EPDM O-rings. Rubber ages and loses elasticity over time. Example: seals need replacement after 20+ years.
Seal material is EPDM
EPDM rubber resists hot water and chemicals. Its service life reaches 25 years. Seal quality determines longevity. Brass Press Fittings use EPDM for seals.
Temperature effect on seal life
At 20°C, seals last 30+ years. At 70°C, life drops to 20 years. At 90°C, it drops to 10-15 years. Brass Press Fittings temperature affects rubber life.
Water chemistry effect
Aggressive water degrades rubber faster. Chlorine and acids accelerate aging. Neutral water extends seal life. Brass Press Fittings water quality matters.

Seals for drinking water
EPDM is approved for contact with water. It does not release harmful substances. Brass Press Fittings with EPDM are safe.
Seals for gas systems
HNBR seals are used for gas applications. Their service life is also 20-25 years. Brass Press Fittings with HNBR for gas.
Example: heating system
A heating system runs at 60°C. Seals last approximately 20 years. Rubber maintains its elasticity. Brass Press Fittings with EPDM work long.
Example: cold water supply
In cold water (10-20°C), seals last 30+ years. Rubber ages more slowly. Brass Press Fittings for cold water are most durable.
Example: hot water supply
At 65°C, service life drops to 20 years. Seals should be checked periodically. Brass Press Fittings for hot water need monitoring.
Signs of seal wear
Leaks appearing around the fitting. Loss of rubber elasticity. Cracks on the seal surface. Brass Press Fittings should be inspected visually.
Seal replacement
When a leak occurs, the fitting is replaced. Seals are not replaced separately. Brass Press Fittings are not repairable.
Final service life summary
Brass Press Fittings have seals that last 20-30 years. Temperature and water chemistry affect this life. EPDM seals are most common. At 20°C, life reaches 30+ years. At 70°C, it is about 20 years. For drinking water, EPDM is safe. When leaks occur, the fitting is replaced. Brass Press Fittings are reliable for decades. Example: proper material selection ensures long seal life.