Specifications: Response: Standard/quick Coverage: Produce a hemispherical water distribution pattern below the deflector. Installation: Pendent installed in accordance with the standard installation rules recognized by the applicable listing or approval agency(ref. Nfpa 13). Orifice size:1/2" Thread size: Npt1/2" Temp. Rating:57,68,79,93 degrees centigrade. Maximum service pressure:175 psig/1.2mpa(12 bar) Listing and approvals: UL/CUL LISTED