A spring device which maintains the spool of a directional control valve in position.
what doesnt it do?! hmmmmmm
dfrere
A ball valve.
no
The ball ceramic valve evolved from the plug valve, in which there is a plug initially. The ball valves also can be divided into floating ball valve and fixed ball valve. The differences between floating ball valve and fixed ball valve are as follows. For the fixed ball valve, the ball is fixed and will not move even under pressure. There are floating valve seat to press the sing real tightly on the ball when suffering the media's pressure. Besides, the axletree is equipped with the stem connecting with the ball. The floating ball valve contains the ball floating inside. The structure is simple and has good tightness. When the media goes through, the pressure is passed into the seal rings, therefore the material of the seat rings should be well considered in design.
A ball valve is a contrivance by which a ball, placed in a circular cup with a hole in a bottom, operates as a valve.
On my 1998 Buick the valve was located near the battery. Mine was damaged during a hurried winter battery change.
A ball valve is used to turn water , gas or oil on and off.
Ball valves are quarter-turn on/off devices. A pivoting ball in the center of the valve controls the flow of liquid or gas media. The pivoting ball is known as a rotary ball, and it is designed with a hole (a bore) in the center. A stem on the top of the ball rotates the ball to open or close the valve. D Chel Valves are the Top Ball Valve Manufacturer in India.
EXACTLY
in open condition the valve handle lever indicates the upstream end of a ball valveANS 2 - Most ball valves where that matters will have an arrow embossed on the valve body. In the case of many ball valve flow direction is immaterial.