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Is installation of the retaining flange (Viking part number 10599) a UL Listing requirement for Viking Institutional Sprinklers?

April 26, 2017flange installation institutional listing requirement retaining UL Viking

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Is installation of the retaining flange (Viking part number 10599) a UL Listing requirement for Viking Institutional Sprinklers?

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No, installation of the retaining flange is not a UL Listing requirement. However, the installing contractor is responsible for ensuring tamper resistance of the final installation. For maximum tamper resistance, it is absolutely necessary to secure the nipple on which the sprinkler is installed to prevent the sprinkler and escutcheon assembly from being pulled away from the ceiling or wall in which it is installed.