Emerson 167D Series Switching Valves User Manual

(0 Votes) | (0)
Page / 8
www. sherregulators.com
Bulletin 71.7:167D
D103235X012
June 2011
167D Series Switching Valves
P1184
TYPE 167DA THREE-WAY SWITCHING VALVETYPE 167D TWO-WAY SWITCHING VALVE
P1185
Figure 1. 167D Series Switching Valves
Introduction
The 167D Series switching valves are typically used
to deliver constant reduced pressure of gaseous
uids to pilot-operated controllers and other
pneumatic instrumentation.
The Types 167D and 167DS are two-way
switching valves.
The Types 167DA and 167DAS are three-way
switching valves.
Features
Compact—The Types 167D and 167DA
switching valves are engineered for outstanding
performance in a compact, lightweight package.
Easy, Accurate Adjustment
With a choice of
springs for optimum resolution, the switching point
is set to a speci c requirement by an adjusting
screw atop the spring case.
Sour Gas Service Capability—NACE MR0175
and MR0103 compliant construction available.
Optional Stainless Steel Construction
The Types 167DS and 167DAS provide high
resistance to corrosion especially bene cial for
offshore applications.
Ease of Maintenance—No special tools are
required to perform maintenance, and
all maintenance can be performed with the
valve in the line.
Rugged Construction—The Types 167D and
167DA switching valves are engineered for longer
service life with minimal maintenance requirements.
Corrosion Resistant Fasteners—Bolting and
adjusting screw are double zinc-chromated for
enhanced corrosion resistance. Optional stainless
steel bolting and adjusting screw are also available.