LMI Milton Roy has announced the development of a new accessory for its metering pumps that allows for the constant removal of vapors and gases in sodium hypochlorite and hydrogen peroxide applications. The pump of the new AutoPrime Valve primes automatically and functions as an air gap anti-siphon valve. Pump output is regulated by venting the discharge to atmosphere during each stroke, eliminating the need for a back-pressure device. In addition it provides a vertical discharge, traditional in pump applications. The AutoPrime Valve offers a flow range of .08 to 5.0 ml per stroke, with a maximum pump output of 8.0 gph. Stroke rates are 5 to 100 per minute, with a stroke length of 30 to 100%. Maximum operating pressure is 250 psi. LMI Milton Roy. www.lmipumps.com