q shut-off valves on major zoneare shut-off


Q. Shut-off valves on major zone?

Are shut-off valves on major zone branches and on the bottom and top of riser?
Are balancing valves on return branches?
Are control valves on supply branches?
Are valve trains clearly indicated or details for all terminated units, including coils, pumps, etc.?
Are drains and dirt pockets at low points and manual air vent on high points?
Are 3-way valves properly piped?

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Mechanical Engineering: q shut-off valves on major zoneare shut-off
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