3 Way Butterfly Valves
The Series 2100 butterfly valve is available in full cut (200 PSI close off) and undercut (100 PSI close off.) VSI Series 2100 butterfly valves have proven to be the most versatile design standard in the building and process control industries. Available as a tested package with a wide range of electric and pneumatic actuators and accessories to fit any application.
Standard features include:
- Ductile iron body
- SS 304 disc
- EPDM seat
- 100/200 PSI close off
- Sizes 2″ to 30″
Siemens Damper Actuators
Siemens damper actuators are easily mounted with VSI damper linkages. These Siemens actuators are available in 24VAC, modulating or floating service as well as spring return or non-spring return.
Please contact a VSI representative for more options.
For more information on VSI’s butterfly valves, please check the Documentation tab below or send us an email. If you prefer to speak with one of our engineers, please call 770-740-0800.
Product Documentation
| Valve Size | Valve Type | VSI Part # | Download |
|---|---|---|---|
| 2" | Non-Spring Return | 3S2120SS-02/GEB131.1P | 4 downloads for all assemblies listed on the left: Submittal Document: |
| 2" | Spring Return/Fail Safe | 3S2120SS-02/GCA121.1P | |
| 2.5" | Non-Spring Return | 3S2120SS-25/GIB131.1P | |
| 2.5" | Spring Return/Fail Safe | 3S2120SS-25/GCA121.1P | |
| 3" | Non-Spring Return | 3S2120SS-03/GIB131.1P | |
| 3" | Spring Return/Fail Safe | 3S2120SS-03/GCA121.1PX2 | |
| 4" | Non-Spring Return | 3S2120SS-04/GIB131.1PX2 |
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