C200 SeriesDouble Check Valve Assemblies
C300 SeriesDouble Check Detector Assemblies
C400 SeriesReduced Pressure Zone Assemblies
C500 SeriesReduced Pressure Detector Assemblies
C200/C300 - In normal flowing operation, the independent Link-check remains closed until there is a water demand. Each check will then open and maintain an approximate 1 PSI differential in the direction of flow. In a nonflow or backflow condition, both checks will close until the resumption of normal flow.
C400/C500 - In normal flowing operation the independent check valves will be open and the pressure differential relief valve located between the two check valves, the area called the zone, will automatically open and close to maintain the zone pressure at least 2 PSI lower than the inlet pressure. If demand for flow stops, the differential pressure relief valve will automatically open and discharge water to maintain the zone at a pressure of 2 PSI lower than the inlet pressure. After the pressure differential is reestablished, the differential pressure relief valve will automatically close.
Double Check Valve Assemblies are used to prevent backflow of pollutants that are objectionable, but not toxic. Double checks may be installed under continus pressure service and may be subject to back pressure. Double Check Valve Assemblies may be used in fire protection systems, without chemical additives, industrial in-plant plumbing systems, and other systems requiring low-hazard protection. Local codes may vary, consult authorities for specific approved applications.
Double Check Detector Assemblies are used to prevent backflow of pollutants that are objectionable, but not toxic. Double checks may be installed under continuous pressure service and may be subject to back pressure. Double Check Detector Assemblies are used primarily on fireline sprinkler systems when it is necessary to monitor unauthorized use of water.
Reduced Pressure Zone Assemblies (RP's) provide protection to the potable water system from contamination in accordance with national plumbing codes. RP's are normally used in high-hazard applications for protection against both backsiphonage, backpressure and the fouling of either check valve.
Reduced Pressure Detector Assemblies (RPDA's) are installed on fire protection systems connected to the public water supply in a high-hazard application. In addition to the features of the C400, the C500 is used to monitor unauthorized use of water from the fire protection system.
C200/C300 - The Backflow Assembly shall consist of two independent Link-check modules within a single housing with sleeve access, required test cocks and drip tight shut-off valves. Link-checks may be removed and reinstalled in housing without any special tools. The housing shall be constructed of 300 Series stainless steel with groove end connections. Link-checks shall have reversible elastomer disks and in operation shall produce drip tight closure against the reverse flow of liquid caused by backpressure or backsiphonage. Device shall be an Ames Fire & Waterworks Colt 200 or 300 series.
C400/C500 - The Reduced Pressure Backflow Assembly shall consist of two independent Link-check modules, a differential pressure relief valve located between and below the two modules, drip tight inlet and outlet shutoff valves, and required test cocks. Both check modules and the relief valve shall be contained within a sleeve accessible single housing constructed from 300 series stainless steel with groove end connections. Link-checks shall have reversible elastomer disks and in operation shall produce drip tight closure against the reverse flow of liquid caused by backpressure or backsiphonage. Device shall be an Ames Fire & Waterworks Colt 400 or 500 series.
- 70% lighter than traditional designs
- Most compact design in the industry
- Entire valve body and quick access sleeve manufactured from 300 Series Stainless Steel
- Approved with gate valves or UL/FM butterfly valves
- Approved for horizontal, vertical or "N" patterns, C400 & C500 also availible in "Z" pattern
- Utilizes groove connections for ease of installation & pipe alignment
- Patented Link-check assemblies allow ease of serviceability
- Replacable check disc rubber
- Smallest Enclosure
Characteristics and MaterialRated Working Pressure:
- 175 PSI
- 350 PSI
- 33ºF - 110ºF
- 300 Series Stainless Steel
- Groove per AWWA C-606 (IPS)
Flange per ANSI B16.1, Class 125
C200/C300 Series Downloads
- Brochure - Colt 200/300
- Installation Sheet - Colt 200/300
- Installation Sheet - Colt 200(a)/300(a)
- Specification Sheet - Colt 200
- Specification Sheet - Colt 300
C400/C500 Series Downloads
- Brochure - Colt 400/500
- Installation Sheet - Colt 400/500
- Specification Sheet - Colt 400
- Specification Sheet - Colt 500
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