Clark Reliance Boiler Trim Water Column Parts
All Clark-Reliance water columns and components are designed and manufactured in total compliance with ASME Boiler Code provisions. Of special importance, all steel water columns are welded according to specific ASME code provisions and procedures, Water columns and components such as gages and valves are hydrostatically tested to 150% of design pressure. Today, Clark-Reliance continues as the foremost name in water column technology and manufacture. Current, advanced products are modern-day versions of columns and trim pioneered by the Reliance Gauge Column Co., America’s oldest and most respected exclusive boiler trim manufacturer.
These Clark Reliance valves are designed and manufactured for demanding applications. Designated as high-grade valves, all models feature valve bodies and packing nuts of ASME Code Bronze. Additional design features include an 18-position gage lever, integral seats and choice of screwed or flanged connections. Valve control is speeded by quadruple stem threads that allow full open/closed with only one-quarter turn.
Specification Data ..... Chains and handles that indicate open/closed positions are provided, as required by the ASME Boiler Code. Lower valves employ a 3/8" pipe tapfor blowdown. A complete valve set includes upper and lower valve, Pyrex tubular glass and guard rods (if mounting centers are specified) and two 5-foot chain lengths. Valve model numbers are stamped on the top of upper valve. *Note: Clark Reliance and Northeast Controls do not recommend tubular glass for use above 250 WSP.