NSF 61 - Drinking Water System Components - is the nationally recognized health effects standard for all devices, components and materials which contact drinking water. Parkers O-Ring Division has developed several materials that are certified to NSF 61. Many of these materials are approved for use in the United Kingdom (WRAS), and Germany (KTW) as well as North America.
NSF International - is an industry regulating agency that was established in 1944. Recognized by ANSI (American National Standards Institute), NSF maintains qualification standards and criteria for a wide range of products, including potable water components and delivery systems.
* NSF 61 listed materials given a commercial hot water rating are also certified for cold water
** Commercial Hot = Tested at 82 C (180 F) (Commercial Hot)
*** Cold Water = Tested at 23 C (73.4 F)
PARKER COMPOUND
POLYMER
HARDNESS
WATER CONTACT TEMP
SERVICE
E1583-70(63017)
EPDM
70
Commercial
Hot **
NSF 61 Internally lubricated,
ideal for high volume
applications
E1561-60(63446)
EPDM
60
Commercial
Hot ** NSF 61, WRAS, KTW, ideal for
high volume applications
E1549-70(63447)
EPDM
70
Commercial
Hot ** NSF 61, WRAS, KTW, excellent
compression set resistance,
ideal for high volume
applications
E1570- 70
EPDM
70
Commercial
Hot ** NSF 61 Internally lubricated
E1571- 70
EPDM
70
Commercial
Hot ** NSF 61
E1244- 70
EPDM
70
Commercial
Hot ** NSF 61 Internally lubricated
E1257- 70
EPDM
70
Commercial
Hot ** NSF 61 Chloramine Resistant
E3609- 70
EPDM
70
Commercial
Hot **
NSF 61, WRAS,
KTW,excellent compression
set resistance
EJ151-80(3958)
EPDM
80
Commercial
Hot ** NSF 61, WRAS, KTW
N1517- 70
Nitrile
70
Commercial
Hot ** NSF 61
N1510-70(67997)
Nitrile
70
Commercial
Hot ** NSF 61
N0757-70
Nitrile
70
Commercial
Hot ** NSF 61
