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Stölzel valve, the air enters through the bottom of the valve casing, up through the hollow bottom end of the piston, and through a port to the valve loop...

instrument maker, has improved the axial flow valve design by fabricating both the rotor and the valve casing from single pieces of solid brass with no soldered...

A rotary valve (also called rotary-motion valve) is a type of valve in which the rotation of a passage or passages in a transverse plug regulates the flow...

associated hardware such as packers, gas lift mandrels and subsurface safety valves. Casing design for each size of designed pipes is done by calculating the worst...

from the sides of the taller valve casing, rather than the top. Very few instruments were built and sold with these valves, and both patents have now expired...

oil also completes the seal between the valve casing and the piston or rotor. Although a clean and unoiled valve of a well maintained instrument should...

natural gas extraction, a Christmas tree, or tree, is an assembly of valves, casing spools, and fittings used to regulate the flow of pipes in an oil well...

that holds the fluid going through the valve. The valve's body is the outer casing of most or all of the valve that contains the internal parts or trim...

are all inside the casing). When the rods at the pump end are travelling up, the traveling valve is closed and the standing valve is open (due to the...

A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. This enables the...

on how the pieces of the valve—especially the casing that contains the ball itself—are manufactured and assembled. The valve operation is the same in...

extra parts or reconfigured bear an X on the serial number on the second valve casing, others had a digit added to the original serial number. In some cases...

A safety valve is a valve that acts as a fail-safe. An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance...

the well where casing strings are suspended and the blowout preventer or Christmas tree is connected. This is the main assembly of valves that controls...

basement. European domestic gas boilers often include such a valve within the boiler casing itself. A working system should not generate further trapped...

control valve ICV – integrated cement volume (of borehole) ICW – incomplete work ID – inner or internal diameter (of a tubular component such as a casing) IDC...

(float valves) prevent backflow after the cement has been pumped into place. Devices fitted with hinged collars and bow springs help keep the casing or liner...

deflect the diaphragm to open the valve and cause air to flow into the casing. This is usually used to purge the casing or full-face mask of water if it...

for a more open-blowing valve register than a regular rotary valve. Conn produce a line of instruments built with this valve, which they market as the...

valve of the pressure regulator by a low-pressure hose, puts the demand valve at the diver's mouth, and releases exhaled gas through the demand valve...