Size (mm)
 
 
   
 
150mm (6”)
 
 
  
 
  
 
   
 
Standard
 
 
   
 
UL 193 Alarm Valves for Fire Protection Service
 
 
  
 
  
 
   
 
Material
 
 
   
 
Cast Iron ASTM A48 Class No. 35
 
 
  
 
  
 
   
 
Rated Pressure
 
 
   
 
175 psi
 
 
  
 
  
 
   
 
Test Pressure
 
 
   
 
350 psi
 
 
  
 
  
 
   
 
Marking
 
 
   
 
UL Listed 3558 Co A 175 psi 4/6 Alarm Check Valve
 
 
  
 
  
 
   
 
Flange Dimension
 
 
   
 
ANSI B16.1 Class 125 / ANSI B 16.5 Class 150
 
 
  
 
  
 
   
 
Installation
 
 
   
 
Vertical 1/2” NPT (PT) Thread Female Inlet 3/4”
 
NPT (PT) Thread Female Outlet 1/2” NPT (PT)
 
Thread Female Drain