Body in brass.
Plate in stainless steel.
Washer in NBR.
Spring in stainless steel.
Minimum and maximum working temperatures: -20°C, 100°C.
Threads: ISO228 (equivalent to DIN EN ISO 228 and BE EN ISO 228).
Pressure: 25bar/362.5psi
Check valve EUROPA 3/4" (DN 20) is uni-directional; in the sense that valve manage the flow in one direction only, which is indicated by the arrow on the body.