Type CBX Cold Box Extension Valve

The U.S. Type CBX control valve is designed specifically for cryogenic cold box applications. The unique design allows ready
access to the seat ring after the body has been sealed in the cold box. A special seat extraction tool simplifies trim-changing operations. Although the standard body extension is 14 in. (355 mm), lengths up to 60 in. (1524 mm) are available on special order.
The use of a standard threaded bonnet allows the user a choice of bonnet styles, from TFE chevron ring packing to bellows seals. An
optional casing flange or weldable sleeve facilitates field mounting.

APPLICATIONS

The valve is especially suited to modulating control of liquids and vapors in the cryogenic temperature range of –450° F (–267° C). Although designed for cold service, the unit can also be used at elevated temperatures, such as sealed ovens.

SPECIFICATIONS

STANDARD FEATURES

Replaceable inner valve
316 stainless steel construction
Wide range of inner valves and characteristics
Guided inner valve
Class IV seat leakage

OPTIONAL FEATURES

Casing flange
Weldable mounting sleeve
Stellite inner valve material
Soft seated inner valves
Bellows bonnet
Wide variety of end fittings: standard NPT or socket weld, butt
weld nipples or flanges