Series 36 and 37 K-LOK® High Performance Butterfly Valves
Description
Specifications
Documentation
Series 36 (wafer) and 37 (lug) style high performance butterfly valves are ideally suited for general applications such as modulating service, airport refueling, hydrocarbon processing, chemical/petrochemical processing, purified gas, steam and vacuum services and power & utilities.
Features & Benefits:
K-LOK® polymer, elastomer, and seats provide bi-directional, drop-tight closure in vacuum as well as at full rated differential pressure. Its unique design does not rely on pressure to assist sealing therefore seals at high and low pressures, as well as dirty service. A variety of materials allows optimum seat life in all applications.
Blow-out resistant shaft is standard on all valves for increased safety.
Unique packing design allows for use in pressure as well as vacuum.
Disc taper pins are tangentially positioned half in disc and half in stem, placing them in compression rather than shear, which eliminates potential for failure.
Rocker-shaped glａnd bridge compensates for uneven adjustment of glａnd nuts reducing packing leaks.
Integrally cast disc position stop perfectly locates the disc in seat, achieving maximum seat and seal life.
Extended neck allows for two inches of pipeline insulation.
Integrally cast mounting pad provides direct mounting of actuators eliminating the need for costly brackets and couplings.
Flattened body bore at stem journal ports positions stem bearings near disc, providing maximum stem support.
Specifications
Size Range: 2" to 36"
Vacuum Rating: 4 x 10-5in Hg
Pressure Rating: Series 36 – ASME 150 Series 37 – ASME 300
Lug body is full rated for bi-directional dead end service as a standard. Fire-safe and metal seated option
Temperature rating: -40°F to 1000°F
NSF-61 trim available in 3" to 36"
Full compliance to API 609 Standard.
Metal seated and fire-safe valves are available. For more information on these trims see Figures 360/362.
