APM-P male flat face coupling series is a variant of the APM series with extra sealings in the internal valve.
The “APM-P” male flat face coupling series is the Stucchi solution for the manual connection with residual pressure in the circuit. The couplings have a triple valve system: double internal pressure release valve provided with seals, and the flat face valve. This system easily allows the connection of couplings with the presence of high internal residual pressure without fluid loss. APM-P is available from size 1/4” and with Zinc-Nickel treatment (upon request).