Tyco Concealed Sprinklers in Bhopal

A concealed sprinkler sits behind a flat cover plate that lies almost level with the ceiling or wall, so only the plate is seen. The plate has its own, lower temperature rating than the sprinkler (for example a 68°C sprinkler with a 59°C plate on the Royal Flush II), so in a fire the plate comes away first and the sprinkler can then operate. Each Tyco model here is offered in two pairs of sprinkler and plate ratings.

Choose by position and water need. For ceilings, the RFII (Royal Flush II) and RFII-MRI pendents have a K-factor of 5.6, and the ILLUSION pendent has an extra large K11.2 orifice for areas where water pressure is limited but a higher water density is needed. For walls, the RFII horizontal sidewall fits along a wall or the side of a beam below a smooth, level ceiling, where pipes across the ceiling are not wanted. For MRI suites, the RFII-MRI is non-magnetic and is meant for the MR system room, mounted at the ceiling and not inside the scanner bore.

Check the response and approval you need. The Royal Flush II comes with a 3 mm bulb (TY3531, quick response) or a 5 mm bulb (TY3551, standard response). Tyco notes that FM does not approve concealed sprinklers as quick response, and that LPCB approvals under EN 12259 do not use response categories for concealed sprinklers, so the approval path can decide the model.

All four use a two-piece design: the sprinkler goes in first and the system can be pressure tested before the ceiling or wall is finished, and the cover plate is fitted last. A protective cap guards the sprinkler during building work and helps mark the centre of the ceiling or wall hole. FPS supplies, installs and maintains Tyco concealed sprinklers in Bhopal and across MP.