These Leslie control valves are rugged, reliable units specially
designed for use in steam, water, gas, vapor and non-corrosive
liquid service. The balanced cage-throttling design permits these
valves to be operated with small, compact and economical actuators
against fluid pressure drops up to 1480 psig and 800°F., (subject
to body pressure/temperature ratings and actuator limits).
hung-cage throttling design eliminates gasket damage and bonnet or
seat leaks due to thermal expansion. Anti-cavitation (Les-Cav)
and low-noise (Les-Sonic) cages are available for special
situations. Cages and trim material are 400 series stainless steel
with optional Stellite® hardfacing available.
Standard valve packing is braided Teflon® graphite. Teflon®
chevron and graphite type II is optional for higher temperature service.
The cage trim is easy to remove for inspection or replacement.
There are no welded, screwed-in or press-fit parts. Capacity changes are
achieved simply by replacing the cage. There's no need to replace
any other parts or add any adapters.