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KBL - Model OS&Y & NRS TYPE (FM & UL) -Gate Valve
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.
- 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
(OS & Y) SERIES 21F
Size Range: 50 mm (2) to 250 mm (10)
Operational Mode: Manual Hand Wheel
Rated Working Pressure: 250 PSI (1725 Kpa)
(OS & Y) SERIES 21H
Size Range: 50 mm (2) to 400 mm (16)
Operational Mode: Manual Hand Wheel
Rated Working Pressure: 175 PSI (1207 Kpa); 150 PSI (1034 Kpa)
NRS Series 21 E
Size Range: 50 mm (2) to 250 mm (10)
Operational Mode: Car Top (Operating Nut)
Rated Working Pressure: 250 PSI (1725 KPa)
NRS Series 21 G
Size Range: 65 mm (2 1/2) to 400 mm (16)
Operational Mode: Manual Hand Wheel
Rated Working Pressure: 175 PSI (1207 Kpa); 150 PSI (1034 Kpa)
- Fire service water control valves