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A curb box (also known as a valve box, buffalo box, b-box, or in British English stopcock chamber) is a vertical cast iron sleeve, accessible from the public way, housing the shut-off valve (curb cock or curb stop) for a property's water service line.
The first refinement in crankcase ventilation was the road draught tube. This is a pipe running from the crankcase (or the valve cover on an overhead valve engine) down to a downwards-facing open end located in the vehicle's slipstream. When the vehicle is moving, airflow across the open end of the tube creates suction (a "draught" or draft ...
The valve box of the front part serves to distribute the flows of inhaled and exhaled air. Inside the valve box, there are inhalation and two exhalation valves (main and additional). It has a standard 40/4 thread and does not initially have a corrugated tube. The filtering-absorbing box (FPK) of the GP-5 civilian gas mask has the shape of a ...
A DIN standard for gas cylinder valves for test pressures up to 300 bar (4,400 psi). EN 15202 [9] A European standard for LPG equipment and accessories, specifying LPG cylinder valve connections. [10] EN 417: European norm specification concerning non-refillable metallic cartridges for liquefied petroleum gases.
Manhole covers may be marked to indicate what sort of services exist under them and what group maintains those services, such as the local water system, telecommunications firm, subway or train services, or natural gas firm. The name "manhole" is sometimes changed to make it gender neutral.
Culvert with secure headwall in Bromsgrove, England Stone culvert in Haapsalu, Estonia Steel culvert with a plunge pool below A multiple culvert assembly in Italy Precast concrete box culvert Large box culvert on Rio Monterroso. A culvert is a structure that channels water past an obstacle or to a subterranean waterway.
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Gas cabinets may be distinguished by the types of valves used to control flow. Manual valves. Valves are manually adjusted or deployed via a control knob, lever, or other manual device. Solenoid valves. Valves are opened and closed via a solenoid magnet deployed by an electrical signal. Air pilot valves. Valves are deployed via a pneumatic signal.