Assertion: valve's trim | /r/MadeOf | deposited weld
Facets:
value: excluding the pin
type: OTHER
value: for the backseat
type: PURPOSE
Source sentences:
text: According to API Standards 600, "Steel Gate Valve-Flanged and Butt-welding Ends, Bolted Bonnets", the trim consists of stem, seating surface in the body, gate seating surface, bushing or a deposited weld for the backseat and stem hole guide, and small internal parts that normally contact the service fluid, excluding the pin that is used to make a stem-to-gate connection (this pin shall be made of an austenitic stainless steel material).