The Keystone 60 is a resilient seated Butterfly Valve with a cartridge seat design. The Keystone Series 60 are designed to be used in many industrial applications such as food and beverage, oil & gas, mining, water treatment, power, and automotive where a heavy-duty resilient seated Butterfly Valve is required.
Features
Suitable for high pressure and full vacuum service due to the use of a cartridge seat design
Triple function cartridge seat isolates the body and stem from the media, provides positive drop tight shut-off of line media at full rated pressure and provides a flange seal, eliminating the need for flange gaskets
Full rated unidirectional dead-end service is achieved by utilizing a unique patented lip in the lug body
Strong disc-to-stem connection and elimination of exposed pins or bolts is achieved through a rectangular drive
Ability to install the valve with the disc in the closed position eliminates the risk of damage to the valve during installation
Maximum flow and range-ability is achieved with the use of a streamlined disc
Stems are blowout-proof stems as a standard
Longer seat life with low operating torques is ensured by utilizing upper and lower stem bearings
Need for costly brackets is eliminated due to the ability to direct mount actuation onto the valve top-plate.
