Emerson Fisher Y600A Series Instruction Manual

Instruction Manual
Form 5458
December 2008
Y600A Series Pressure Reducing Regulators

Introduction

Scope of Manual

This manual describes and provides instructions,
installation, maintenance, and parts lists for
Types Y600A, Y600AM, and Y600AR pressure
regulators. Instructions and parts lists for other
equipment used with these regulators are found in
separate manuals.

Product Description

The Y600A Series pressure reducing regulators may be
applied as switching valves, relay or pressure loading
regulators, or monitoring regulator pilots, and are
described as follows:
Type Y600A—Direct-operated regulator with internal
registration requiring no downstream control line.
Type Y600AM—Direct-operated regulator with blocked
throat, O-ring stem seal to prevent leakage around
the stem, and diaphragm casing tapped 1/2-inch NPT for
control line connection.
Type Y600AR—Type Y600A with internal relief valve.
Specifications
Ratings and specifications for the Y600A Series
regulators are given in the Specifications section on
page 2. Individual regulator data is stamped on the
closing cap as it comes from the factory.

Installation

WARnIng
!
Personal injury, property damage,
equipment damage, or leakage due to
escaping gas or bursting of pressure-
containing parts may result if this
Regulator operation within ratings does not preclude
the possibility of damage from debris in the lines or
from external sources. A regulator should be inspected
for damage periodically and after any overpressure
condition. Key numbers referenced in this section are
shown in Figures 3 through 6.
www.emersonprocess.com/regulators
Y600A Series
W7095
Figure 1. Type Y600A Pressure Regulator
regulator is over pressured or is installed
where service conditions could exceed
the limits given in the Specifications
section, or where conditions exceed
any ratings of the adjacent piping or
piping connections.
To avoid such injury or damage, provide
pressure-relieving or pressure-limiting
devices (as required by the appropriate
code, regulation, or standard) to prevent
service conditions from exceeding
those limits.
Additionally, physical damage to the
regulator could cause personal injury
or property damage due to escaping
gas. To avoid such injury or damage,
install the regulator in a safe and well
ventilated location.