"drainage valve" is correct and usable in written English.
It is a technical term meaning a mechanism for controlling the flow and pressure of a liquid or gas through a pipe. For example: "The engineer installed a new drainage valve to ensure the water pressure from the main supply was appropriately regulated."
The truck was still moving fuel for the US Army but the bullets and shrapnel had begun to clog the reservoir's drainage valve.
The test section was placed into a PMMA tank, spray chamber, which was equipped with a pressure gauge, safety valve, and a relief drainage valve.
The leached solution was collected weekly from each lysimeter by opening the drainage valve located at the end of drainage pipe.
In cases with angle-closure glaucoma exceeding 330°, implantation of a drainage valve is recommended [ 6].
To our knowledge, no previous cases of IOL-CB complex subluxation in an eye with a glaucoma drainage valve have been reported.
Procedures for slowing vision deterioration include laser therapy for RVO, retrobulbar or intraocular injection of triamcinolone for macular edema, vitrectomy for vitreous hemorrhage, and drainage valve implantation for glaucoma.
Place a drainage pan under your radiator's drain valve to collect old coolant.
Engineering elements necessary for contingency planning include pipeline pumping and drainage characteristics, valve placements, monitoring equipment, operating procedures, and communications and control systems.
From 1985 to 1996, the village underwrote the elevation of 16 roads and installation of storm drainage check valves that prevent flooding, said Louis DiGrazia, superintendent of the department of public works.
During the follow-up period, implantations of Ahmed valve drainage device (New World Medical, Rancho Cucamonga, CA, USA) were eventually performed in these eyes (Case 9 and Case 11).
