167D Series Switching Valves0 pages
Bulletin 71.7:167D
nnnnJune 2011
nnnn167D Series Switching Valves
nnnnTYPE 167D TWO-WAY SWITCHING VALVE
nnnnTYPE 167DA THREE-WAY SWITCHING VALVE
nnnnFigure 1. 167D Series Switching Valves
nnnnIntroduction
nnnnThe 167D Series switching valves are typically used
nnnnto deliver constant reduced pressure of gaseous
nnnnfluids to pilot-operated controllers and other
nnnnpneumatic instrumentation.
nnnn• The Types 167D and 167DS are two-way
nnnnswitching valves.
nnnn• The Types 167DA and 167DAS are three-way
nnnnswitching valves.
nnnnFeatures
nnnn• Compact—The Types 167D and 167DA
nnnnswitching valves are engineered for outstanding
nnnnperformance in a compact, lightweight package.
nnnn• Easy, Accurate Adjustment—With a choice of
nnnnsprings for optimum resolution, the switching point
nnnnis set to a specific requirement by an adjusting
nnnnscrew atop the spring case.
nnnn• Sour Gas Service Capability—NACE MR0175
nnnnand MR0103 compliant construction available.
nnnn• Optional Stainless Steel Construction—
nnnnThe Types 167DS and 167DAS provide high
nnnnresistance to corrosion especially beneficial for
nnnnoffshore applications.
nnnn• Ease of Maintenance—No special tools are
nnnnrequired to perform maintenance, and
nnnnall maintenance can be performed with the
nnnnvalve in the line.
nnnn• Rugged Construction—The Types 167D and
nnnn167DA switching valves are engineered for longer
nnnnservice life with minimal maintenance requirements.
nnnn• Corrosion Resistant Fasteners—Bolting and
nnnnadjusting screw are double zinc-chromated for
nnnnenhanced corrosion resistance. Optional stainless
nnnnsteel bolting and adjusting screw are also available.
nnnnwww.fisherregulators.com
nnnnEMERSON
nnnnProcess Management
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