1.   The pumps are available together with a complete range of new steam and air fittings and control valves.

2.   The stoves either fit directly on to the cartridge or are fed through a short hose with a control valve.

3.   Unscrewing the control valve opens the cap and allows the contents to flow out.

4.   When you open the control valve the liquid is released into the stove burner as a gas.

5.   In most cases, that is under the sink, although with some fixtures it may be necessary to close the main control valve for the entire house.

6.   Second, check the one-handle control valve and the tub spigot.

7.   This March, the aviation administration ordered airlines to inspect the rudder power control valve periodically.

8.   Whittaker also makes commercial aerospace products such as control valves and safety systems.

9.   Tyco, which is based in Bermuda but does business out of New Hampshire, makes electrical and electronic parts, flow control valves and medical devices.