Gate Valve - OS&Y & NRS TYPE (FM & UL)

KBL is India’s first and only valve manufacturer to achieve the Certificate of Compliance from Factory Mutual for its fire service water control valves, which cover Outside Screw & Yoke and Non - Rising Stem Gate Valves (Metal Seated). Kirloskar NRS and OS&Y type FM Approved Gate valves are tested as per IS: 14846 standards.

Primary Usage

  • Water Supply
  • Fire service water control valves
  • Metal to metal seating for longer service life
  • Accurate interchangeability of components
  • Accurate parallelism between side flanges
  • Perfect machining and press fitting of body and wedge rings
  • Excellent finish on spindle threads, resulting in low friction and smooth operation of valves
  • Leak-tightness
  • Pressure (Kg/Cm^2) Minimum: (OS & Y) SERIES 21F/ NRS Series 21 E – Body - 35.15; Seat - 17.57