Valves
![Rollover 5308 5309 Ball Valve](https://s3.us-east-2.amazonaws.com/csi-imgix/products/rollover-5308-5309-Ball-Valve.png)
Ball Valves
One-way valves opened and closed through pressure on a ball which fits into a cup-shaped opening.
![Valve Alfa Butterfly](https://s3.us-east-2.amazonaws.com/csi-imgix/products/valve-alfa-butterfly.jpg)
Butterfly Valves
Valves that isolate or regulate the flow of a fluid.
![Valve Alfa Spring Check](https://s3.us-east-2.amazonaws.com/csi-imgix/products/valve-alfa-spring-check.jpg)
Check Valves
Designed to ensure process integrity and reliable service in one direction.
![Gemu 2 Way](https://s3.us-east-2.amazonaws.com/csi-imgix/products/Gemu_2-Way.png)
Diaphragm Valves
Two independent plug seals separate the two lines, allowing the product to flow from one line to the other without spillage.
![Valve Unique Mixproof To](https://s3.us-east-2.amazonaws.com/csi-imgix/products/valve-unique-mixproof-TO.jpg)
Mixproof Valves
Unmatched flexibility, while maintaining simplicity.
![Valve Alfa Plug](https://s3.us-east-2.amazonaws.com/csi-imgix/products/valve-alfa-plug.jpg)
Plug Valves
Designed with cylindrical or conically tapered "plugs" which can be rotated inside the valve body to control flow through the valve.
![Valve Alfa Cpmi](https://s3.us-east-2.amazonaws.com/csi-imgix/products/valve-alfa-cpmi.jpg)
Pressure Modulating Valves
Sanitary constant-pressure valves for use in stainless steel pipe systems.
![Valve Alfa Relief](https://s3.us-east-2.amazonaws.com/csi-imgix/products/valve-alfa-relief.jpg)
Pressure Relief Valves
Central States Industrial (CSI) offers the Tri-Clover® D60RTHMP relief valve from Alfa Laval.
![Valve Alfa 660](https://s3.us-east-2.amazonaws.com/csi-imgix/products/valve-alfa-660.jpg)
Sample Valves
Convenient manual operation allowing you to take a sample from the process line. Can be easily mounted.
![Rollover Unique 7000 Small Single Seat](https://s3.us-east-2.amazonaws.com/csi-imgix/products/rollover-Unique-7000-Small-Single-Seat.png)
Seat Valves
Alfa Laval deliver years of reliable seat valve performance in a wide variety of temperature ranges and working conditions.
![Valve Laufer Shutter](https://s3.us-east-2.amazonaws.com/csi-imgix/products/valve-laufer-shutter.jpg)
Shutter Valves
The hygienic alternative to full-port ball valves.
![Valve Alfa Unique Vacuum Breaker](https://s3.us-east-2.amazonaws.com/csi-imgix/products/valve-alfa-unique-vacuum-breaker.jpg)
Vacuum Breaker & Air Vents
Guard against the contamination risks presented by air and vacuum conditions.
![Dry Link Open No Bkgnd](https://s3.us-east-2.amazonaws.com/csi-imgix/products/Dry-Link-Open-No-Bkgnd.png)
Dry Disconnect Couplings
When product loss and product spills are unacceptable, dry-disconnect valves may be the ideal solution.
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