Devices that regulate the flow of gases, liquids, or loose materials through piping by opening, closing, or obstructing ports or passageways.
Ball valves are quarter-turn, straight-through valves that have a round closure element with matching rounded seats that permit uniform sealing stress. The valve gets its name from the ball that rotates to open and close the valve. Ball valves are used in situations where tight shut-off is required. They are wide duty valves, able to transfer gases, liquids and liquids with suspended solids (slurries). Ball valves provide tight shut-off and characterizable control. They have high rangeability due to the design of the regulating element and few complications from side loads typical of butterfly or globe valves.
Butterfly valves control flow through a circular disc or vane by turning the valve's pivot axis at right angles to the direction of flow in the pipe. They are normally used as throttling valves to control flow.
Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves.
Diaphragm valves close by means of a flexible diaphragm attached to a compressor.
Diverter valves direct flow from one inlet to one of two or more outlets.
Drain valves are designed to automatically remove liquids from process lines as necessary.
Gas valves are used to handle and control the flow of gaseous media such as liquefied petroleum and natural gas. They are made of metal or plastic and vary in terms of valve size, pressure rating, number of ports, and flow.
Gate valves and knife valves are linear motion valves in which a flat closure element slides into the media stream to shut off flow.
Globe valves are linear motion valves with rounded bodies, from which their name is derived. They are widely used in industry to regulate fluid flow in both on/off and throttling service.
Mixing valves combine the flow of two or more inlets into a single outlet for applications such as temperature and concentration control.
Plastic valves are made from plastic materials and are used in applications that require corrosion resistance and/or chemical handling.
Quarter-turn plug valves use a cylindrical or tapered plug with a hole in the center to control straight through flow when in the open position.
Pressure relief valves are self-actuated safety valves designed to relieve excess pressure upstream from the line.
Steam valves are used to control the flow and pressure level of steam and heated water vapor.
Water valves are designed to handle and control hot water, cold water, ground water, potable water, salt water and/or wastewater. They are made from metal or plastic.