Factory Installed, Calibrated and Tested

Continuous Monitoring Via BMS

Save Time

Select Ames backflow preventers now include as an option factory integrated supervisory switches on OS&Y gate valves for fire tamper detection. The TS-OSY supervisory switch is UL® Certified, Safety Signaling (Control No. 3L38). This feature eliminates manual field installations and any opportunity for error associated with installing aftermarket supervisory switches on existing backflow preventers.

Be More Efficient with Your Time

Stay Connected

Continuously monitor your valve for fire tampering
through your BMS system

All-in-One Purchase

Purchasing a backflow preventer with a tamper
switch already installed means one less purchase to
deal with

No More Headaches

Having fire tamper detection already installed and calibrated means less frustration in the field

How to Get Started


Choose an Ames backflow preventer and gate valve with integrated fire tamper detection
Install the backflow preventer as usual
Hand it off to the electrician with confidence

Backflow Preventers That Will Make Your Life Easier

2000SS

Stainless Steel Double Check Valve Assembly Backflow Preventers
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3000SS

Stainless Steel Double Check Detector Assembly Backflow Preventers
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C200

Stainless Steel Double Check Valve Assembly Backflow Preventers with Tri-Link Check Valves
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C300

Stainless Steel Double Check Detector Assembly Backflow Preventers with Tri-Link Check Valves
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LFC300

Lead Free* Double Check Detector Assembly Backflow Preventers
Learn More

C400

Stainless Steel Reduced Pressure Zone Assembly Backflow Preventers with Flood Sensor - 2 1/2 - 10 Inch Sizes
Learn More

C500

Stainless Steel Reduced Pressure Detector Assembly Backflow Preventers with Flood Sensor - 2 1/2 - 10 Inch Sizes
Learn More

LFC500

Lead Free* Stainless Steel Reduced Pressure Detector Assembly Backflow Preventers with Flood Sensor - 2 1/2 - 10 Inch Sizes
Learn More

Additional Accessories

Gate Valve TS-OSY

OSY Gate Valve with Tamper Switch
Learn More

TS-OSY

Tamper Switch Replacement for OSY-TS Models
Learn More

Want to learn more about how the Ames Fire Tamper Switch will save you time and labor?