KF Needle & Gauge Valves

O-Ring & Packed Stem Style

KF Needle Valves combine rugged construction, dependability and leak-free performance at high and low pressures. These valves offer exceptional regulating properties and high flow capacities in the full open position. Valves are available with metal-to-metal or a replaceable nylon seat. Materials of construction include Carbon Steel with 316 Stainless Steel Stem and is optionally available in all 316 Stainless Steel.


General Design Features

O-Ring Style

  • 1/4”-1/2” NPT, soft seat pressures up to 6000 PSI
  • At 200˚F, metal seated valves with standard Buna N Stem seal rated up to 10,000 PSI at 200˚ & optional Viton® stem seal assemblies up to 400˚F
  • NACE conformance available

Packed Stem Style

  • 1/4”-1” NPT, hard & soft seat
  • Stainless steel stem & Teflon® or Grafoil® packing
  • Standard Teflon® packing is rated up to 10,000 PSI at 200˚F, optional HT (Grafoil®) packing for temperatures up to 1000˚F
  • NACE conformance available

Special Features

  • Oversized extra heavy body resists abuse & provides protection against corrosion & erosion
  • Precision machined seat pocket & bonnet
  • Retaining threads assure perfect alignment & sealing at bonnet/body connection & stem/seat interface
  • Bonnet locking pin secures the bonnet & body against accidental disassembly
  • 316 Stainless steel stem with a precision ground conical seating tip