The R-K NLM series no lube manual valve features a compact thermoplastic valve designed to be used in places where no lubrication is required or permitted. Actuates with a minimum use of hand, foot, or knee pressure. This allows one or both hands to be free to handle parts. 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 flow and top entry for easy maintenance makes this an ideal valve for most manual applications. Suitable for most harsh chemicals and ideal for DI water and other high purity applications. The standard valve is normally closed (push-to-open, release-to-close).