Keystone Butterfly Valve, F360

Keystone K-LOK® High Performance Butterfly Valve Sizes 50mm–900mm ANSI Class 150 and 300

Features & Benefits:

• Integrally cast mounting pad provides direct mounting of Keystone F79U pneumatic actuators.
• Rocker-shaped gland bridge compensates for uneven adjustment of gland nuts.
• Extended neck allows for 50mm of pipeline insulation.
• Flattened body bore positions stem bearings near disc, providing maximum stem support.
• Disc taper pins are tangentially positioned half in disc and half in stem, placing them in compression rather than shear, which eliminate potential for failure.
• Integrally cast disc position stop perfectly locates the disc in seat, achieving maximum seat and seal life.
• Uninterrupted flange face retaining ring allows use of standard spiral wound gaskets.
• K-LOK polymer seats incorporate a true interference seat design that does not rely on line pressure to assist sealing. This design provides 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.

The Keystone K-LOK valve is designed for a wide range of applications such as:
Process Control
Food Processing
Chlorine
Sour Gas
Oxygen Service
Reverse Osmosis
Category ‘M’ Fluids
Vacuum
Light Slurries
Pharmaceutical

Technical Data

Size Range: 50 to 900mm
Pressure Rating: ASME Class 150 and 300
Temperature Rating: ASME Class 150 and 300
Fire-Safe Option
NSF-61 trim available in 80 to 900mm