The trim shall be selected carefully depending on process parameters as fluid working temperature pressure and valve type.
Api gate valve trim chart.
10 000 15 000 psi slab gate valves and gate valves with ball screw operators have unique trim charts.
Also usable for mildly corrosive fluids and gases when limited corrosion of the.
This will element the requirement of defining material grade for each component.
A valve s trim performance is determined by the disk and seat interface and the relation of the disk position to the seat.
Removable replaceable functional parts of the valve that are exposed to the flow medium such as stem closure member and seating surfaces is termed as trim valve body bonnet yoke does not include in trim the number corresponding to material used in api 600 and api 602 are termed as trim numbers.
Gate valves are on off valves to open and close the flow of the fluid in a.
This trim chart provides information on materials included in standard valves offered by array.
The installation of this type of valve creates a modest pressure drop in the pipeline lower than globe valves.
Installations requiring a through conduit valve.
Api trim number material backseat stem notes 1 410 410 410 410 410 2 304 304 304 304 304 3 f310 310 310 310 310 4 hard 410 hard 410 hard 410 410 410 seats 750 bhn min.
Valve trim chart notes.
Stainless trim for substantially the same service as t 21 but where the corrosion resistance of 13 chrome stainless steel internal parts are desirable.
Because of the trim basic motions and flow control are possible.
The temperature limitations are 0 degrees to 250 degrees f.
Trim 1 is still used for api603 gates as well as globe check valves.
This trim chart provides information on materials included in standard valves offered by array.
The api 600 norm defined standard numbers to indentify the trim in terms of combinations of materials for the replaceable parts of the valve.
In rotational motion trim designs.
Always consult current api publications to verify information and trim data.
Special materials trims and configurations are available upon customer request.
Valve trim chart notes.
Special materials trims and configurations are available upon customer request.
Api 600 602 gives the list of trim material that can be used in the valve.
Data provided in this chart is for informational purposes only.
10 000 15 000 psi slab gate valves and gate valves with ball screw operators have unique trim charts.
Gate valves have forged bodies for bore sizes below 2 inches api 602 bs 5352 and cast bodies for larger sizes api 600 api 603 api 6d.
The trim of a valve is the set of replaceable parts of a valve.
The valve body bonnet packing et cetera that also come in contact with the flow medium are not considered valve trim.
1 api lists as obsolete but still used in the valve industry.
