Ball Valve Drafting Symbol

Used for high flow capacity. Department of veterans affairs office of acquisition logistics and construction office of construction and facilities management office of facilities planning facilities standards service subject. By sol enoid 3 16 gate valve 3 38 reducing valve adjustable 3 17 double seated changeover valve 3 39 on off valve controlled by solenoid and pilot directional valve and with spring return 3 18 suction valve chest 4.

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Buttweld y type valve.

Ball valve drafting symbol. Type of valve employed depends on nature of fluid flow control required operating pressure and temperatures as well as surround atmosphere. You can see that p id and isometric symbols are almost the same with the only change in end types. Symbol for spring or rest position of valve. These details may include the size function pressure rating and connection type of the valve.

Symbol for 2 port valve with two positions one position valve open with flow in both directions or valve closed with both ports blocked. An engineer may also include specific details below the control valve symbol. Used when a straight flow of fluid and minimum restriction is desired. No symbol symbol designation no symbol symbol designation 3 15 butterfly valve 3 37 3 2 spring return valve contr.

The spring pushes from the side that is drawn on and will return the valve back to its failsafe position. Symbol for 3. Standard detail created date. Here is a list of symbols for various types of valves used in process industry.

Buttweld three way valve. Piping symbol legend circulator w isolation flanges gate valve globe valve ball valve swing check valve flow check valve spring loaded check valve hose bib boiler drain thermostatic radiator valve trv straight circuit setter manual 3 way valve zone valve air separator backflow preventer diaphragm type expansion tank pressure reducing valve. For example the note 2 300 rf pb indicates that the p id calls for this valve to be a 2 ansi 300 raised face piston balanced valve. Table b 4 additional alternate valve symbols valves air line valve ball valve butterﬂy valve diaphragm valve gate valve gate angle valve globe valve globe angle valve plug valve.

Normally closed ball valve. Excellent to be used as a control valve due to. Many types of valves are required in a process plant for flow regulation or on off purpose. Normally closed gate valve.

For a globe valve a symbol is modified by adding a small dark circle between triangles. Symbol for pressure inlet port of valve. Appendix b symbols for drawings table b 1 air moving devices and ductwork symbols air movement fans axial ﬂow fan centrifugal fan. Withstand extreme pressure temperature and high volume flow.