Term
| Oxygen fitting does not need... |
|
Definition
|
|
Term
|
Definition
|
|
Term
| List JIC Components that make up a tubing assembly: |
|
Definition
| fitting, flare nut, and sleeve. As with other flared connection systems, the seal is achieved through metal-to-metal contact between the finished surface of the fitting nose and the inside diameter of the flared tubing. The sleeve is used to evenly distribute the compressive forces of the flare nut to the flared end of the tube. |
|
|
Term
| Compression fittings are sealed by... |
|
Definition
Force, pressure.
note** Parts are not interchangeable. |
|
|
Term
|
Definition
-fast opening
-can proportion easily from 0 to 100% |
|
|
Term
|
Definition
-slow opening
-often used so that high pressure cannot be opened quickly |
|
|
Term
|
Definition
-used when adjusting flow isn't needed.
-if the valve is partially open the gate will damage the valve.
-Are designed for all open or all closed use. |
|
|
Term
|
Definition
-easily repaired by replacing the rubber diaphragm
-the rubber diaphragm is not suitable for sharp contents, high pressure, or steam. |
|
|
Term
|
Definition
-swing-check valves
-spring and poppet |
|
|
Term
|
Definition
-is a non-return valve fitted in a drain, at the hull, that discharges overboard.
-it prevents sea water from backing up into the drain system.
-A storm valve is a type of swing check valve. |
|
|
Term
|
Definition
-is a non-return valve fitted in an oil-fuel tank vent.
-is fitted to the ship's side above the water line.
- A ball inside the valve will permit air to flow to and from the tank, but will prevent sea water from entering the vent. |
|
|
Term
|
Definition
-Relativly New
-Lightweight
-Takes up less space than a Gate or Globe Valve
-Easy to overhaul
-Quick Acting |
|
|
Term
|
Definition
-Fitted to protect equipment, machinery, and piping, from damage due to excessive pressure.
-Sufficient to prevent a pressure increase greater than 10%
-Adjustable based on the amount of spring tension.
-Must be checked and calibrated by a competent person.
-Locked with tie wire, and a tamper proof seal. |
|
|
Term
|
Definition
Electric
Pneumatic
Hydraulic
explosive Actuating |
|
|
Term
|
Definition
-More powerful
-Faster than handtools |
|
|
Term
|
Definition
-Have to be specifically designed and altered for underwater us.
-Danger of Electric Shock
-Not as power as pneumatic or hydraulic
-Very Expensive
-Power Supply |
|
|
Term
|
Definition
-Readily Available
-Relatively Inexpensive
-Require no or little modification for underwater use.
-Power source readily available and portable
-Rugged and powerful |
|
|
Term
|
Definition
-Require strict maintenance and lubrication
-Exhausted air - uncomfortable - poor visibility
-Noisy
-Heavy and awkward
-Affected by depth, and Temperature |
|
|
Term
|
Definition
-extremely powerful
-smaller and lighter than pneumatic
-no bubbles
-Little noise
-self lubricating (little maintenance -last longer.)
-Depth has no effect
-Stalling does not harm
-Portable power supply |
|
|
Term
|
Definition
-Very expensive
-Note readily available |
|
|
Term
| Three types of motors used in power tools: |
|
Definition
-Reciprocating
-Rotary
-Combination - a combination of reciprocating and rotary. |
|
|
