消防(防火)阀门 • 槽状机械结构 • 尼龙涂敷球墨铸铁 • 加长轴颈 • 合成橡胶包胶阀杆 • 可配置内置或外置监控开关 Fire Protection Valve • Grooved Mechanical Style • Nylon Coated Ductile Iron • Extended Neck • Elastomer Encapsulated Disc • Accepts Internal and External Supervisory Switches 300 PSI / 20.7 Bar非冲击性冷水DN65 - DN200 175 PSI / 12.1 Bar非冲击性冷水DN250 300 PSI/20.7 Bar Non-Shock Cold Water 21/2" - 8" 175 PSI/12.1 Bar Non-Shock Cold Water 10" UL / ULC认证 • FMRC认证 • DN65 - DN250阀门UL认证适用于室内和室外环境 • 加州消防局7770-1243:101认证 • 纽约市MEA 9-97-E认证 UL/ULC LISTED • FMRC APPROVED • 21/2" - 10" UL LISTED FOR INDOOR AND OUTDOOR SERVICE • CALIFORNIA STATE FIRE MARSHALL APPROVAL NO. 7770-1243:101 • APPROVED BY THE NEW YORK CITY MEA 9-97-E |