The drainage function during testing keeps the sprinkler piping dry without filling it with water! Due to the electric three-way valve, connecting it to the water supply prevents stagnant water!
It operates based on signals from the electric valve control panel SBK-25Z of the specific facility water supply connection type sprinkler system (dry type).
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basic information
■ Electric Valve Storage Box SBK-25K Specifications External Dimensions: W=600mm H=400mm D=200mm Body Material: Steel Plate t=1.6 Color: Approximate color 2.5Y9/1 with 5% gloss Weight: Approximately 23kg Internal Piping: Lead-free ball valve, electric three-way valve, manual three-way valve (for testing and drainage), manual release valve (for emergency), manual release valve (for electric three-way valve shaft) (for emergency) *All are certified products by the Japan Water Works Association, Nominal Diameter 25A * A water supply pipe with a nominal diameter of 25A or larger is required. * Please install it at least 800mm above the ground. * To prevent stagnant water, please install it close to the branch point of the water supply piping or connect it to a water supply faucet or sprinkler faucet. * Please take measures against freezing for the primary side piping inside the storage box. * Please apply caulking treatment to the installation surfaces with the wall on the top and sides. * For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Examples of Use】 ■Hospital ■Inpatient Clinic ■Group Home ■Single-family House ■Apartment Building ■Small-scale Facility *For more details, please refer to the PDF document or feel free to contact us.
Detailed information
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[Normal valve position and water flow] Water enters from A and flows to the right (primary side) via B (electric three-way valve). When a signal is received from the control panel (during a fire), B (electric three-way valve) operates and changes the water flow to the left (secondary side), filling the fire extinguishing pipe. *Please set the handle at A vertically, the handle at C vertically, and the handle at D vertically.
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[Position of the valve and water flow during testing] If you are testing whether B (electric three-way valve) operates normally without filling the fire protection pipe, please position the handle C horizontally. *After the test is completed, please return the handle C to the vertical position.
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[Position of the valve and water flow during drainage] When draining the water filled in the fire protection pipe, please turn the handle C to the right at a 45° angle to drain the water. After the drainage is complete, please return the handle C to the vertical position.
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[Position of the valve and water flow in an emergency] If for some reason B (electric three-way valve) does not operate, you can fill the fire extinguishing pipe by turning the handle D horizontally. *Note: D should never be opened (handle horizontal) during normal conditions.
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Company information
Toho Electric Co., Ltd. deeply recognizes the importance of quality assurance and environmental conservation, and as a company that provides current limiters, related components, and electromagnetic products that are trusted and satisfying to our customers, we contribute to society while each individual engaged in our business actively works towards further improving quality, conserving the environment, and preventing pollution.
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