Back To Top
Keystone Figure 360/362 and 370/372 K-LOK High Performance Butterfly Valve
Figure 360/362 and 370/372 K-LOK High Performance Butterfly Valve
K-LOK Figure 360/362 unique two-piece shaft and double-offset disc/shaft design allows for high cycling and creates a lower disc profile with increased capacity.
Keystone Figure 360/362 and 370/372 K-LOK High Performance Butterfly Valve


ABS, American Bureau of Shipping Shipboard, CRN, Fire Safe, NACE, SIL capable
End Connection
Lugged, Wafer
Balance of Plant, Cogeneration, Biofuels, Blower, Clean Steam, Cleaning & Processing, Compressors , Container Ship, Cooling Water
316 Stainless Steel, Carbon Steel, Duplex, Monel, Stainless Steel, Super Duplex, Teflon, Steel
Pressure Class
Process Connection Type
CL150RF, CL300RF
Seat/Seal Type
High performance, Metal, Resilient, Soft, Soft Seal
Shutoff Class
Zero Leakage, Class IV (FCI 70-3)
API 609, ASME B16.34
Valve Size
NPS 6 / DN 150, NPS 4 / DN 100, NPS 8 / DN 200, NPS 3 / DN 80, NPS 24 / DN 600, NPS 2-1/2 / DN 65
Valve Size Standard
Valve Type
Vacuum, Water, Water Glycol, Steam, Specialty Gases, Oxygen, Liquid, Aggressive Liquids/Gases, Air, Air, Inert Gas
Adjustable packing, Live loaded


  • Integrally cast mounting pad provides direct mounting of many actuators.
  • Rocker-shaped gland bridge compensates for uneven adjustment of gland nuts.
  • Extended neck allows for two inches of pipeline insulation.
  • Flattened body bore at shaft journal ports positions shaft bearings near disc, providing maximum shaft support.
  • Disc taper pins are tangentially positioned half in disc and half in shaft, placing them in compression rather than shear, which eliminates potential for failure.
  • Integrally cast disc position stop perfectly locates the disc in seat, achieving maximum seat and seal life.
  • K-LOK polymer, elastomer, and fire-safe seats provide bi-directional, drop-tight closure in vacuum and throughout all pressure ranges, as well as at full rated differential pressure. A variety of materials allows optimum seat life in all applications.


Interesting in attending a training class?

Visit Course Listing!