cocks and valves are designed to control or interrupt flow. this is done in cocks by rotating the plug, and in valves by lowering, raising or rotating a disc in relation to a seating surface or by controlling the movement of a ball. ... butterfly valves a butterfly valve consists basically of a disc...
cocks and valves are designed to control or interrupt flow. this is done in cocks by rotating the plug, and in valves by lowering, raising or rotating a disc in relation to a seating surface or by controlling the movement of a ball. ... butterfly valves a butterfly valve consists basically of a disc...
cocks and valves are designed to control or interrupt flow. this is done in cocks by rotating the plug, and in valves by lowering, raising or rotating a disc in relation to a seating surface or by controlling the movement of a ball. ... butterfly valves a butterfly valve consists basically of a disc...
cocks and valves are designed to control or interrupt flow. this is done in cocks by rotating the plug, and in valves by lowering, raising or rotating a disc in relation to a seating surface or by controlling the movement of a ball. ... butterfly valves a butterfly valve consists basically of a disc...
cocks and valves are designed to control or interrupt flow. this is done in cocks by rotating the plug, and in valves by lowering, raising or rotating a disc in relation to a seating surface or by controlling the movement of a ball. ... butterfly valves a butterfly valve consists basically of a disc...
cocks and valves are designed to control or interrupt flow. this is done in cocks by rotating the plug, and in valves by lowering, raising or rotating a disc in relation to a seating surface or by controlling the movement of a ball. ... butterfly valves a butterfly valve consists basically of a disc...
cocks and valves are designed to control or interrupt flow. this is done in cocks by rotating the plug, and in valves by lowering, raising or rotating a disc in relation to a seating surface or by controlling the movement of a ball. ... butterfly valves a butterfly valve consists basically of a disc...
cocks and valves are designed to control or interrupt flow. this is done in cocks by rotating the plug, and in valves by lowering, raising or rotating a disc in relation to a seating surface or by controlling the movement of a ball. ... butterfly valves a butterfly valve consists basically of a disc...