Advanced Concepts 2 min read
Butterfly Check Valves
Butterfly check valves have a seating arrangement similar to the seating arrangement of butterfly valves. Flow characteristics through these check…
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Advanced Concepts 1 min read
Piston Check Valves
A piston check valve, illustrated in Figure 25, is essentially a lift check valve. It has a dashpot consisting of…
Advanced Concepts 4 min read
Check Valves
Check valves are designed to prevent the reversal of flow in a piping system. These valves are activated by the…
Advanced Concepts 2 min read
Needle Valves
A needle valve, as shown in Figure 20, is used to make relatively fine adjustments in the amount of fluid…
Advanced Concepts 4 min read
Butterfly Valves
A butterfly valve, illustrated in Figure 19, is a rotary motion valve that is used to stop, regulate, and start…
Advanced Concepts 2 min read
Pinch Valves
The relatively inexpensive pinch valve, illustrated in Figure 18, is the simplest in any valve design. It is simply an…
Advanced Concepts 3 min read
Reducing Valves
Reducing valves automatically reduce supply pressure to a preselected pressure as long as the supply pressure is at least as…
Advanced Concepts 3 min read
Diaphragm Construction
The operating mechanism of a diaphragm valve is not exposed to the media within the pipeline. Sticky or viscous fluids…
Advanced Concepts 2 min read
Diaphragm Valves
A diaphragm valve is a linear motion valve that is used to start, regulate, and stop fluid flow. The name…
Advanced Concepts 1 min read
Plug Valve Glands
The gland of the plug valve is equivalent to the bonnet of a gate or globe valve. The gland secures…
Advanced Concepts 2 min read
Lubricated Plug Valve Design
Clearances and leakage prevention are the chief considerations in plug valves. Many plug valves are of all metal construction. In…
Advanced Concepts 2 min read
Multiport Plug Valves
Multiport valves are particularly advantageous on transfer lines and for diverting services. A single multiport valve may be installed in…
