NSF 61 Certified Materials
Chlorazone®
Chlorazone® is Lavelle's proprietary family of elastomeric formulations that are ANSI/NSF 61 certified and specifically designed for the chemistries found in potable water. Since becoming the first chlorine resistant material introduced for plumbing applications, Chlorazone® has been rigorously tested in full chlorine, chloramine & drop-in tablets containing hydantoine for over 25 years. This unique combination makes it the best choice for toilet flappers and seals.
Advantages of Chlorazone®:
- Resists potable water disinfectants
- Resists acids (toilet bowl cleaners) and alkalis (2000 Flushes®)
- Many formulations are certified for safe drinking water applications
- ANSI/NSF 61 - 12 materials
- BS6920 - 3 materials
- LADWP SPS - 3 materials
- Available in a range of durometers from 50-90
Chlorazone® Material Performance Results:
(Testing performed in extreme chlorine concentrations of 100-1000x greater than field conditions.)
- Low volume swell
- Low extractability
- Low compression set
- Low taste and odor
- High tear strength
- High and low pressure sealing ability
Applications:
- Flow control valves
- Toilet flappers & seals
- Faucet seals
- Water softener seal
- Any potable water application

