A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. In the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also valve, stop-check and valve, stop-lift-check.
NSN 5835-01-160-7282
NSN 5990-01-378-7349
NSN 5999-01-477-5922
NSN 6150-01-366-0733
NSN 6685-00-663-9000
NSN 6150-01-463-5883
NSN 5905-01-452-5669
NSN 6610-00-851-8727
NSN 4140-01-103-3377
NSN 6645-00-276-7544
NSN 6130-01-082-4187
NSN 5920-01-290-3771