Double disc gate vale with replaceable spacer ring
Dual pendulum valve assembly with valve seat cover
Elastomeric molded valve stem and spring hat
Extended stroke valve and diaphragm
Fabricated gate valve structure
Faucet control mechanism
Faucet having leakproof effect
Fire-resistant gate valve
Flange seal
Flexible wedge gate valve
Flexible wedge gate valve
Floating slit valve for transfer chamber interface
Flow control device and apparatus for mounting same
Flow control device and apparatus for mounting same
Flow control valve for hot pitch or other viscous material
Flue gas shut-off valve
Fluid by-pass/seal means
Fluid control device with a non-circular flow area
Fluid controller
Fluid controller