The 64800 is a new hydrant fueling coupler designed to supersede the 60700-1. It is used for air reference pressure control systems. Two other versions, 64801 with excess flow control and 64802 for digital pressure control systems can be reviewed in their respective bulletins. Many new features have been incorporated into the design of the 64800. Most of these features (changes) have been at the request of long time users of the 60700-1 Hydrant Fueling Coupler, the standard of the industry for over 25 years.
