Data Sheet

Bulletin 71.2:299H
3
3/4 NPT
CONTROL LINE
Figure 2. 299H Series Sectional Views
Features
• Compact in Size—Small envelope because of the
built-in pilot and internal registration.
• Unique No Bleed Monitor System—Flexible
worker/monitor system setup that allows for
bleed to be piped to the intermediate piping thus
eliminating downstream bleed which reduces lost
and unaccounted for gas. Another advantage of this
conguration is that the system lockup pressure is
that of the worker instead of the monitor.
• Not an Adaptation of Existing Regulators—
New design of integrated cases and internal
registration ports.
• Wide Variety of Applications—Natural gas
distribution systems, gas supply to industrial
boilers, furnaces, ovens, mixers, plant air service.
• Highest Quality— Designed and manufactured to
ISO 9001 standards.
• Accuracy—Keeps constant inlet pressures to
downstream equipment by accurately controlling
distribution system pressures at widely varying ow
rates and supply pressures for maximum efciency
and best operation or by eliminating the need for
pressure-compensating meters by holding a steady
pressure to the meter inlet.
• Optional Token Relief—The Types 299HR and
299HSR with an integral token relief in the pilot is
designed to relieve minor overpressure caused by
thermal expansion.
• High-Capacity Pressure Control—Actuator
diaphragm responds quickly to downstream
pressure change, causing immediate correction in
W7527-1
TYPE 299H WITH EXTERNAL REGISTRATION TYPE 299HR PILOT WITH OPTIONAL TOKEN RELIEF
W7528-1
main valve position. Pilot responds simultaneously
and controls nal positioning of main valve. This
action permits full main valve travel, resulting in
higher capacity than could be obtained without an
external pilot regulator.
• Easy Registration Conversion—Two screws and
O-rings change internal registration to external or
dual registration.
• Easy Startup—No special procedure required.
• Easy to Maintain—Main valve disk and orice can
be inspected without removing body from pipeline.
Easy access two bolt ange permits quick removal
of actuator and pilot from body.
• Economical, Labor-Saving Installation—Supply
pressure to pilot is factory-piped directly from inlet
side of main regulator body, thus requiring no
upstream pilot supply line on standard installations.
• Rugged Construction—With a two bolt connection
of the regulator to the body and no union ring, the
299H Series regulators are designed for longer
service life with minimal maintenance requirements.
• No gaskets—Reusable O-rings at all
serviceable joints.
• Startup Protection—The main valve and the pilot
are designed with reverse pressure mechanisms to
prevent damage during startup or sudden increase
in downstream pressure.
• Fewer Parts—Fewer recommended parts needed
for spare parts inventory.