By using a spring return or fail-safe lever becomes a ball valve either normally open (NO) or normally closed (NC).

1/4’’ up to 3/4’’ – Square 9mm - F03/F04 -15 NM
1’’ up to 1 1/4’’ - Square 11mm - F04 - 22 NM
1 1/2’’ up to 2’’ – Square 14mm - F05 – 35 NM
Datasheet