Check the listing for details. Univer Be-4000 Electrovalve Mono Iso2 - Mixed System Iso2 Valve. Condition: New, Made in Italy. Listed at 146.49 USD. MIXED SYSTEM ISO2 SOLENOID/SPRING VALVE DOUBLE ELECTRIC IMPULSE univer BE-4000 THE PRICE DOES NOT INCLUDE COILS AND CONNECTORS - SOLENOIDS AND CONNECTORS NOT INCLUDED The ISO regulations regarding pneumatic valves are now a consolidated reality and accepted by all users and the major manufacturers of pneumatic components. Choosing ISO standard valves today means being technically advanced and guaranteeing the user interchangeability of both the valve body and the electromagnetic part. The ISO standard for pneumatic valves is accepted by industry and the major pneumatic valve manufactures throughout the world. The choice of valves according to ISO standard means to be at the technical forefront and to guarantee the user the interchangeability of both the valve body and electromagnetic part.