First, sprinklers must be located so they are within the hot-gas layer that develops near the ceiling during a fire because activation occurs when the sprinkler head reaches a certain temperature. NV002 UL Listed, Horizontal Sidewall, Quick Response Type Sprinkler Head. Bulkbuy Tyco Ty4151 Ty4251 Upright Pendent Sprinklers price comparison, get China Tyco Ty4151 Ty4251 Upright Pendent Sprinklers price comparison from Fire Sprinkler,UL FM Sprinkler manufacturers & suppliers on Video Channel of Made-in-China.com . The cap will fall away about 20°F prior to activation of the sprinkler. Super high amount of views. Description. Price Fire Sprinkler Head Fire Sprinkler Heads Prices Low Price Fire Sprinkler Upright Fire Sprinkler Fire Sprinkler Head. Fusible-link sprinkler heads are triggered by a soft metal alloy that melts at … View Full Details. Upright Sprinkler Head. Fire Fighting Pipes This type of sprinkler head has deflectors that are curved down to spray the water in a hemispherical pattern. // -->. 0 sold, 37 available. Upright sprinkler heads point towards the ceiling. These heads are generally used in mechanical rooms or other inaccessible rooms. Measures 3 high X 2 wide inches. For commercial upright fire sprinkler heads from Senju, Tyco, Victaulic, and Viking, order with QRFS. K115 (K8.0) SSU Upright Quick Response Sprinkler, 15mm (½”), FM approved, UL Listed, VdS, LPCB, CE. Upright sprinkler (Standard response) Upright with markings: FM(in a diamond) on top. Fire Fighting System. Brass 175F TY-FRB Quick Response Upright Sprinkler Head 5.6 K-Factor. Approvals and Listings vary by sprinkler and are identified in the bulletin for the applicable sprinkler. £7.81. installing upright or pendent sprinklers will depend on the situation and application you are using them. There are two main criteria for the location of sprinkler heads.