Product: Medium Speed Water Mist Spray Nozzle, DN20 (3 4 inch) Overview This metal medium speed water mist nozzle, also known as an impact nozzle, is designed for water curtain type fire spraying and water mist protection. It is built from a frame, , and splash plate with a dustproof net to maintain stable misting performance and reduce clogging. Key benefits Effective water curtain formation: Produces a fine mist and directed spray to form a protective water curtain for fire exposure control. Reliable performance: Medium speed impact design balances spray reach and droplet size for consistent suppression and cooling. Durable construction: Metal body and dustproof splash plate provide long service life in demanding industrial environments. Easy compatibility: Available sizes DN15 and DN20 corresponding to 1 2 inch and 3 4 inch fittings, supplied as single units to match common piping and sprinkler systems. Main features Function: Water mist/impact nozzle for creating a water curtain and medium speed spray. Components: Frame, , splash plate with dustproof net. Material: Metal for structural strength and corrosion resistance in typical fire protection settings. Sizes: DN15 (1 2 inch) and DN20 (3 4 inch). This listing is for DN20 (3 4 inch). Quantity: 1 piece per unit as a nozzle for water curtain type fire sprayers. Performance and suitability Designed to protect areas containing flammable liquids, gases, and solid hazards with a flash point above 68. Produces a controlled mist to reduce heat transfer and limit flame spread in protected zones. Splash plate and dustproof net help prevent debris buildup that could affect spray pattern. Typical applications Storage tank and loading bay protection for flammable liquids with a flash point above 68. Perimeter and separation lines in industrial facilities to form a water curtain between a fire source and adjacent equipment. Protection for pump rooms, transfer stations, and hazardous material handling areas where water mist suppression and cooling are required. Installation notes Select the correct size for existing piping or nozzle mounts: DN15 for 1 2 inch connections, DN20 for 3 4 inch connections. Ensure compatible water supply pressure and system design for medium speed water mist operation. Regular inspection of the splash plate and dustproof net is recommended to maintain spray performance. This nozzle is suitable for integration into water curtain type fire sprayer systems and similar water mist protection setups that require metal medium speed impact nozzles in DN15 or DN20 sizes.