LWNS Series Medium Body Monitor Nozzles

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WILLIAMS FIRE & HAZARD CONTROL® (WILLIAMS) LWNS Series monitor nozzles are patented water-powered nozzle systems that deliver either water or foam to the hazard area. The discharge pattern is fully adjustable from straight stream to full fog. 

Each nozzle is supplied with interchangeable orifice plates for proportioning at 0.5%, 1%, and 3%. Foam concentrate is proportioned directly from an atmospheric storage tank using the self-eduction function or from a remote foam concentrate supply in conjunction with a matched Jet Ratio Controller at 1% or 3% only. 

LWNS nozzles feature a brass construction with stainless steel trim. These nozzles have a 2 1/2 in. (F)NH swivel inlet and a 1 1/2 in. (M)NPT foam concentrate inlet. These three models are available with standard flows rates of 350 gpm (1,325 Lpm), 500 gpm (1,893 Lpm), or 750 gpm (2,839 Lpm) at 100 psi (6.9 bar), respectively 


  • Delivers water or foam stream to hazardous areas n Non-corrosive materials 
  • Adjustable discharge pattern from straight stream to full fog 
  • Two large, composite-rubber covered brass handles 
  • Interchangeable orifice plates for foam concentrate proportioning adjustment 

Ordering Information

Contact WILLIAMS customer service at Johnson Controls with specific application requirements for custom configuration as well as additional information.


Part Number Model Approximate Shipping Weight
16285 LWNS350 28 lb (12.7 kg)
16286 LWNS500 28 lb (12.7 kg)
16287 LWNS700 28 lb (12.7 kg)

Company Brands

Rapid Response
Sabo Foam