Data Sheet

Bulletin 71.1:CS200
2
Introduction
The CS200 Series direct-operated, spring-loaded
regulators have been engineered to t a multitude of
pressure-reducing applications including commercial
and industrial installations. This exibility is provided
by the numerous body sizes, outlet pressure settings,
and orice sizes. Ease of maintenance and installation
is also a strength of the CS200 Series, which offers a
full 360-degree of rotation of the actuator via the union
ring connection between the body and casing. The
combination of 360-degree rotatable union ring along with
a rotatable upper casing provide simplied vent position,
especially in tight spaces or awkward installations.
The CS200 Series also offers Overpressure
Protection in the form of Internal Relief and
Secondary Seat™ Protection.
Figure 2. Typical CS200 Series Pressure Reducing Regulator Cut-Away View
RELIEF VALVE STEM
LEVER
SPRING SEAT
RELIEF VALVE
SPRING
STABILIZER
VALVE DISK
ORIFICE
DIAPHRAGM HEAD
RELIEF VALVE
SEAT
ADJUSTING SCREW
BODY
STEM
PUSHER POST
ASSEMBLY
PRESSURE
RETAINING PLUG
(DO NOT REMOVE)
Overpressure Protection
Options Available:
• Internal Relief – Relieves gas across the main
diaphragm assembly to minimize downstream
pressure buildup.
• Secondary Seat™ Protection – provides lockup
via a secondary seating and disk surface in the
event that damage to the primary disk or orice
seating surface, or debris in the ow path, inhibit
primary lockup. Secondary Seat Protection does
not provide additional overpressure protection in
the event the secondary seat or disk is damaged
by debris or contamination in the pipeline or from
conditions that would cause the regulator to go
wide open. See page 6 for additional information.