2.5 C500-OSY-C-FS
Item Number: F0191306
1
/
of
1
Regular price
$7,593.17
Special Order
When Will it Ship:
Contact for Lead Time
Estimated transit time: 2 to 5 Business Days
Brand - Ames
Couldn't load pickup availability
- 2 1/2 inch Reduced Pressure Detector Assembly
- Weight: 192.0 lb
- Body Material: 304 Stainless Steel (Schedule 40)
- Maximum Working Pressure: 175 psi
- Temperature Range: 33°F - 140°F
- Flood Sensor: SentryPlus Alert® technology included
- Bypass Meter: Cubic Feet Meter included
- Shutoff Valves: OSY Resilient Seated Gate Valves
- Approvals: ASSE 1047, CSA B64.4, UL Classified, FM Approved
Description
Description
The Ames Fire & Waterworks Colt™ C500 2 1/2 inch Reduced Pressure Detector Backflow Preventer Assembly offers critical protection for drinking water supplies. This unit prevents dangerous cross-connections from non-potable sources like fire sprinkler systems, irrigation, and industrial processing. Constructed with a durable 304 stainless steel body, it features a flood sensor with SentryPlus Alert® technology to detect excessive relief valve discharge and a metered bypass for leak detection. OSY resilient seated gate valves ensure reliable shutoff. It is designed for easy serviceability and minimal pressure loss, providing robust performance and compliance for commercial and industrial applications. Item F0191306.
Help Me Connect
Help Me Connect
Connecting the Flood Sensor
- The integrated flood sensor requires an add-on connection kit to enable its multi-channel alert capabilities (call, email, text) and integrate with Building Automation Systems (BAS) via RS-485 Modbus or the Nexa® platform through Wi-Fi.
Installation
- This assembly utilizes groove fittings, designed for straightforward installation and integral pipeline alignment.
- The OS&Y model offers an option for an integrated supervisory switch on each gate valve, which may require specific wiring for activation.

Collapsible content
Additional Details
This Colt™ C500 2 1/2 inch reduced pressure detector backflow preventer assembly protects drinking water supplies from dangerous cross-connections. It is designed for health-hazard non-potable service applications such as fire sprinkler systems, irrigation, or industrial processing.
A WARNING: It is illegal to use this product in a plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Before installing standard material product, consult your local water authority, building and plumbing codes.
Construction & Design
- Features an extremely compact design, 70% lighter than traditional models
- Housing and sleeve are constructed from 304 (Schedule 40) stainless steel
- Includes groove fittings for integral pipeline adjustment and easier installation
- Patented link check for lowest pressure loss
- Equipped with UL Classified and FM Approved outside stem and yoke (OSY) resilient seated gate valves
- Bottom-mounted cast stainless steel relief valve
Monitoring & Detection
- Integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve
- Requires an add-on sensor connection kit to activate multi-channel alerts (call, email, text) for potential flooding
- Includes a metered bypass (cubic feet meter) to detect leakage or unauthorized water use from the fire sprinkler system
- OSY model offers an option for an integrated supervisory switch on each gate valve
Maintenance & Performance
- Offers unmatched ease of serviceability
- Features replaceable check disc rubber for extended lifespan
Specifications
- Assembly Type: Reduced Pressure Detector Backflow Preventer
- Nominal Size: 2 1/2 inch
- Housing & Sleeve Material: 304 (Schedule 40) Stainless Steel
- Shutoff Valves: OSY Resilient Seated Gate Valves
- Bypass Meter: Cubic Feet Meter
- Relief Valve: Bottom-Mounted Cast Stainless Steel
- Elastomer Material: EPDM, Silicone, Buna 'N'
- Link Check Material: Noryl®, Stainless Steel
- Check Disc Material: Reversible Silicone or EPDM
- Test Cock Material: Lead Free* Bronze
- Pins & Fasteners Material: 300 Series Stainless Steel
- Spring Material: Stainless Steel
- Temperature Range: 33°F - 140°F (0.5°C - 60°C)
- Maximum Working Pressure: 175 psi (12.1 bar)
- Configurations: Horizontal, Z-Pattern Horizontal, N-Pattern Horizontal
Certificates & Approvals
- Approved By: Foundation for Cross-Connection Control and Hydraulic Research at USC (FCCCHR-USC)
- Certification: AWWA C511-97
- Certification: ASSE 1047
- Certification: CSA B64.4
- Certification: UL Classified
- Certification: FM Approved
FAQs
What is the primary use of the Colt™ C500 2 1/2 inch RPDA?
The primary use is to protect drinking water supplies from dangerous cross-connections with non-potable sources in health-hazard applications such as fire sprinkler systems, irrigation, or industrial processing.
Does this backflow preventer come with a flood sensor?
Yes, it includes a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. An add-on connection kit is required to activate its full alert functionality.
What material is the body of the backflow preventer made from?
The housing and sleeve are constructed from 304 (Schedule 40) stainless steel, offering durability and corrosion resistance.
What is the maximum operating pressure and temperature range?
The maximum operating pressure is 175 psi. It is designed to operate within a temperature range of 33°F to 140°F (0.5°C to 60°C).
Are the shutoff valves included with this assembly?
Yes, this C500-OSY model includes UL Classified and FM Approved outside stem and yoke (OSY) resilient seated gate valves.