A valve that has one seat which provides a seal, and a bleeder line and valve that are tapped into the block valve's bonnet.

block and bleed valve

tag class

A specification according to which an item is intended to be designed

the position to which the valve closure member moves when the actuating energy source fails

The name of the product in liquid or gas phase.

Valve with an unobstructed opening, not smaller than the internal bore of the end connections.

A diameter which is an expected (theoretical/as designed) diameter.

A pressure at which a functional or physical object is expected to operate normally.

A temperature at which a functional or physical object is expected to operate normally.

A specification defined by specified circumstances in which piping components may be applied.

Property	Data Type	Max Length	Required	Picklist
design specification Text Required Max Length: 40	Text	40	Required
failure action Text Required Picklist: failure action	Text		Required	failure action
fluid name Text Required Max Length: 100 Picklist: fluid	Text	100	Required	fluid
full opening valve Boolean Required Max Length: 3	Boolean	3	Required
nominal diameter Number Required	Number		Required
normal operating pressure Number Required	Number		Required
normal operating temperature Number Required	Number		Required
piping class Text Required Max Length: 40	Text	40	Required