Product Name: Medium Speed Water Mist Nozzle Model NO.: ZSTW Nozzle Flow Coefficient: 16/21/27/34/42/53/68 L/Min Dry Alarm Valve Type: Enclosed Type Closed Fire Sprinkler System: Dry Fire Sprinkler System Open Fire Sprinkler System Type: Deluge System Automatically Opened and Closed Repeatedly: Can't Automatically Opened and Closed Alarm Valve Type: Deluge Valve Sprinkler Head Type: Open Sprinkler Installation: Upright/Pendent Norminal Diameter: 15mm/20mm/25mm Material: Brass/Stainless Steel Surface Finish: Chrome/Natural Brass Working Pressure: 0.35MPa Flow Coefficient: 16/21/27/34/42/53/68/86 L/Min Spray Angle: 90 Degree to 180 Degree Application: Open Spray Fire Sprinkler System Trademark: SINCO/OEM Transport Package: Standard Export Carton Specification: 1/2"/3/4"/1" Origin: Quanzhou, Fujian HS Code: 84249090 Product Description Medium Speed Water Mist NozzleDescriptionWater mist nozzle, as the main part of the water mist system, is commonly used in the industrial places with flammable gas, liquid processing and storage. When acting, the water driven by pressure knocks around, revolves and stirs then ejects tiny water drops, shows good performance of cooling, smothering and electrical insulation, showing good performance of cooling, smothering and electrical insulation. Technical parametersModelFlow coefficient(K)Spraying angleConnect threadTypeZSTWB-16-901690°R1/2Centrifugal(High speed)ZSTWB-16-12016120°R1/2ZSTWB-21-902190°R1/2ZSTWB-21-12021120°R1/2ZSTWB-27-902790°R3/4ZSTWB-27-12027120°R3/4ZSTWB-34-903490°R3/4ZSTWB-34-12034120°R3/4ZSTWB-42-904290°R3/4ZSTWB-42-12042120°R3/4ZSTWB-53-905390°R1ZSTWB-53-12053120°R1ZSTWB-68-906890°R1ZSTWB-68-12068120°R1Model specificationFlow coefficientSpraying angleConnect threadTypeZSTWC-63-(90-180)3490°-180°R1/2 or R3/4ImpactZSTWC-80-(90-180)4390°-180°R1/2 or R3/4ImpactZSTWC-100-(90-180)5390°-180°R1/2 or R3/4ImpactZSTWC-160-(90-180)8690°-180°R1/2 or R3/4ImpactPhotoesOther Fire fighting Equipment