Flat Face Screw Couplings/Steel Italy Part #: PST4 Interchange: Stucchi VEP Occlusion: flat face Locking: screw Material: steel Finishing: Zn-Fe (Cr III) and Zn-Ni Threads: BSP-NPT-SAE-METRICS Standard seals: NBR and PU Working temperature: -13°F+212°F Optional seals: FKM, EPDM or more Working pressure: 4,350-6,525 PSI Connection under residual pressure: allowed (both male or female side) Sizes Offered: 1/4”-1-1/2” Accessories offered: FSI-ADP/ADC and FSI-PDC/PDP THESE ARE SOLD AS INDIVIDUALS NOT SETS C= COUPLER/FEMALE N= NIPPLE/MALE