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Keystone-k-lok series 36 37 butterfly valve

Keystone K-LOK® Series 36/37 High Performance Butterfly Valve

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Product Description

The Keystone K-LOK® Series 36/37 is a high-performance butterfly valve rated to ASME Class 150 and 300, available in wafer, lugged and flanged style. The unique design has bi-directional sealing for various pressures, as well as dirty services. It ensures safety, minimal leakage, and extended life.

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k-lok series 36 37 butterfly valve
Manual Actuator
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k-lok series 36 37 butterfly valve
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F89
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Features

  • K-LOK polymer and elastomer seats provide bi-directional, drop-tight shut-off in vacuum as well as at full rated differential pressure.
  • Blow-out resistant shaft is standard on all valves for increased safety.
  • Unique packing design allows for use in pressure as well as vacuum without modification or special assembly.
  • 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.
  • 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 50 mm (2") of pipeline insulation.
  • Integrally cast mounting pad provides direct mounting of actuators eliminating the need for costly brackets and couplings.
  • Flattened body bore at shaft journal ports positions shaft bearings near disc, providing maximum shaft support resulting in reduced wear and longer life.

Specifications

Size Range
NPS 2 - 36 (DN 50 - 900)
Temperature Rating
-40°F to 1000°F (-40°C to 538°C)
Pressure Rating
ASME Class 150 - 300
Material
316 Stainless Steel, 316L Stainless Steel, Carbon Steel, Duplex, Stainless Steel, Super Duplex
Pressure Class
ASME
Process Connection Type
150RF, 300RF
Seat/Seal Type
High performance
Shutoff Class
Zero Leakage
Standards
API 609, ASME B16.34
Valve Size
PS 10 / DN 250, NPS 12 / DN 300, NPS 14 / DN 350, NPS 16 / DN 400, NPS 18 / DN 450, NPS 2 / DN 50, NPS 20 / DN 500, NPS 2-1/2 / DN 65, NPS 24 / DN 600, NPS 3 / DN 80, NPS 4 / DN 100, NPS 6 / DN 150
Valve Size Standard
NPS
Valve Type
Butterfly, High performance Butterfly Valve

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