Tank cooling nozzle tank cooling water spray the attachment is a open orifice and non, Automatic spray nozzle. Hv nozzle is intended for application in fixed water spray fire protection systems, Especially for protection of fuel storage tanks. Tank cooling nozzle is typically mounted in upright position at a distance from the exterior wall of the tank for cooling of the tank. In the event of fire in the vicinity of the tank it prevents the tank from absorbing the heat radiation. Tank cooling nozzle is certified by UL description model ts, Brass construction model tss, Made with high-quality stainless steel materials size 1/2 BSPT / NPT k, Factors k20, K30, K37, K42, K58, K79 non, Automatic open orifice ul listed