The R-K series MOV operated valve features a compact thermoplastic valve designed to be used with a minimum of hand, foot or knee pressure. This allows one or both hands to be free for tother tasks. This patented valve is designed so there is no metal contact with the fluid. A teflon wiper ring prevents most dirt from entering through the top of the valve. Automatic fail-safe shut-off. Direct acting full lfow and top entry for easy maintenance makes this an ideal valve for most manual applications. Suitable for most harsh chemicals. The standard valve is normally closed (push-to-open, release-to-close).