Sight Flow Indicator, Acrylic, 4" Size, 9" Outside Diameter, 1-7/16" Width

Sight glasses offer operators reliable viewing of product flow through critical points of a plumbing system. These 4" ANSI sight flow indicators feature an all-acrylic construction designed for unimpeded viewing clarity and added durability. Compared to other sight flow indicators that feature built-on metal housings, acrylic sight glasses are an economical yet durable option for operator viewing anywhere along the plumbing system. Acrylic sight glasses fit between standard 150 lb. ANSI flanges. For use with gas, diesel, liquid fertilizer, and many other products (not for use with NH3 or LPG).

Standard Features:

• Extremely durable
  
• One inside corner is beveled for use with butterfly valves
  
• Use with standard flange gaskets
  
• Rated to 200 PSI W.P. at ambient temp
  
• Maximum temperature 180 Deg. F
  

Not for hose ends - will scratch if dragged on the ground.