Pregled posta

NON RETURN VALVE DRAINAGE - VALVE DRAINAGE

Non return valve drainage - Symbol for check valve

Non Return Valve Drainage

drainage


The means of removing surplus water or liquid waste; a system of drains


drain: emptying something accomplished by allowing liquid to run out of it


(drained) knackered: very tired


The action or process of draining something


(drained) emptied or exhausted of (as by drawing off e.g. water or other liquid); "a drained marsh"; "a drained tank"; "a drained and apathetic old mannot caring any longer about anything"

return


tax return: document giving the tax collector information about the taxpayer's tax liability; "his gross income was enough that he had to file a tax return"


Come or go back to a place or person


Go back to (a particular state or activity)


a coming to or returning home; "on his return from Australia we gave him a welcoming party"


Turn one's attention back to (something)


go or come back to place, condition, or activity where one has been before; "return to your native land"; "the professor returned to his teaching position after serving as Dean"

valve


A device for controlling the passage of fluid through a pipe or duct, esp. an automatic device allowing movement in one direction only


control consisting of a mechanical device for controlling the flow of a fluid


a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it


device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone


A cylindrical mechanism in a brass instrument that, when depressed or turned, admits air into different sections of tubing and so extends the range of available notes


A membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, that maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow