304/316 Stainless Steel Investment Cast Flange Ball Valve

304/316 stainless steel investment cast body 
Full Port ANSI-CLASS 150 lb.
Suitable for full range of liquids and gas 
Pure Teflon seals and seats 
Temperature range : -60 to 450 Degrees F
Low operation torque 
100% individually tested 
Blowout-proof stem
Heavy duty stainless steel handle

Designation - Material
Body - SS 316/ CF8M
Ball - SS 316/ CF8M
Seat - RPTFE
Cap - SS 316/ CF8M
Stem - SS 304
Stem Packing - SS 304
Body Seal - PTFE
Stem Seal - PTFE
Bolt - SS 304
Gland - SS 316/ CF8M
Stopper - SS 304
Handle - SS 316/ CF8M
Snap Ring - SS 304
Nut - SS 304

Ball valves provide a simple way to turn the flow of gases or liquids through a pipe on or off with the assistance of a secure seal. The handle of one of these valves moves in a 90-degree (or "quarter turn") range of motion. The valve itself in its most basic form consists of a sturdy metal joint housing containing a spherical ball with a hole bored through the center. A slot in the top of the ball connects with the stem of a handle extending to the exterior of the pipe.

In the "open" position, the cavity running through the center of the ball aligns perfectly with the openings of the input and output pipes located on either side; it allows the contents of the input pipe to flow through the ball to reach the output pipe. However, turning the handle of the ball valve into the "closed" position will shut off the flow completely. This action turns the ball, placing its opening perpendicular to the flow of material in the pipes. A closed ball valve provides a secure way to shut off the flow of natural gas, oil, water, or other gases or liquids. It offers a more convenient type of handle than a cumbersome gate valve for most residential uses.