Designed specifically for burner-boiler applications, the new ASCO™ Series 158 Gas Valve offers a higher close-off pressure of 75 psi (5.2 Bar) that ensures a safe shutoff in the event of a fuel train system failure and eliminates the need for additional safety components. Ability to deal with varying gas inlet pressures — without a reduction in burner performance and operation. Installation is also made easier with end connectors that eliminate the need for piping unions and a ventless compatible monoblock design that not only does away with the need for additional vent piping, but also limits greenhouse gas and vent emissions.