Products/Services for Double Detector Check Valve

  • Check Valves-Image
    Check Valves - (1930 companies)
    ...the valve, while backflow forces the valve closed. The mechanics of check valve operation are relatively simple. Most check valves contain a ball that sits freely above the seat, which has only one through-hole. The ball has a slightly larger diameter than... Search by Specification | Learn More
  • Backflow Preventers-Image
    Backflow Preventers - (129 companies)
    ...into the close position when the flow is reversed. Double disc or wafer check valves are comprised of two half-circle discs that fold together when the flow is positive and retract when the flow is reversed. Lift check valves have a free-floating closure... Search by Specification | Learn More
  • No Image Available
    Fire Protection Services - (223 companies)
    Fire protection services install, maintain and monitor safety equipment such as flame and smoke detectors, sprinkler systems, fire alarms and annunciators. Flame detectors are used by fire protection services to determine whether a fuel is burning... Learn More
  • Fire Sprinkler Heads-Image
    Fire Sprinkler Heads - (90 companies)
    ...valves are attached to the fire alerting system (e.g., smoke detector or smoke alarm) so that water is not dispersed to areas that are free of fire. Control valves, heat-activated sprinkler heads, and regulators are important components... Learn More
  • Diodes-Image
    Diodes - (760 companies)
    ...to a pressure rating on a check valve. Image Credit: AMB Laboratories. Light emitting diodes (LEDs) are PN junction devices that give off light radiation through electroluminescence when forward biased. They are used as various indicators in aviation... Search by Specification | Learn More

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