Plt4 1/2" BSP ISO12.5 ISO16028 Probe - PLT4.2013.113 ISO 16028 Occlusion: flat face Locking: radial balls Material: steel Finishing: Zn-Fe (Cr III) and Zn-Ni Available Threads: BSP, NPT, SAE, metric Standard Seals: NBR and PU Optional Seals: FKM, EPDM Connection Under Pressure: not allowed High working pressures to 7.350 psi /500 bar, Sleeve lock device, Locking radial balls, Connection under pressure not allowed. PLT 4 series is ideal for non-Spill High pressure and High impulse applications.