BASIC OPERATION AND FUNCTION OF CONTROL VALVESExplore further
2013-6-15u2002·u2002hand jack: A manual override device, using a lever, to stroke a valve or to limit its travel. handwheel: A mechanical manual override device, using a rotary wheel, to stroke a valve or to limit its travel. hard facing: A material applied to valve internals to resist fluid erosion and/or to reduce the chance of
Get Price