Keystone K-LOK® Series 36/37 high-performance butterfly valves comply with ASME Class 150 and 300 pressure classes, with wafer, lugged and flanged body types available. The distinctive sealing structure requires no fluid pressure for sealing assistance, realizing reliable tight sealing under both high and low pressure conditions as well as service with contaminated dirty media.
Technical Data
- Model series
- 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
- Temperature range
- -40°F to 1000°F
- Pressure rating
- ASME Class 150 - 300
- Body material
- 316 Stainless Steel, 316L Stainless Steel, Carbon Steel, Duplex, Stainless Steel, Super Duplex

