Jandy Valve Actuators - Valves and Valve Actuators Jandy Valve Actuators JVA and NeverLube Valves ...the Perfect Match JVAs are the perfect complement to Jandy NeverLube Valves. Industry Standard, Jandy NeverLube Valves have diverter seals that are guaranteed for the life of the valve, making the JVA/NeverLube combination a durable automation solution. Perfect for O.E.M. Applications Original Equipment Manufacturers have found JVAs perfect for many of their automations applications, like solar heating. If you're an OEM. JVAs can stop or start diverters in any rotation position, the danger of deadheading the pump is eliminated.