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627 Series

eFisher Controls International, Inc. 1986, 1989; All Rights Reserved

U.S. PATENT 4,782,850

Fisher Controls Instruction Manual

627 Series Self-OperatedPressure Reducing Regulators

July 1989 Form 5252R

Introduction

Scope of ManualThis manual provides instructions for the installation,adjustment, maintenance, and parts ordering for the 627Series regulators. These regulators usually are shippedseparate for line installation, although sometimes they areshipped installed on other equipment. Refer to theinstruction manual for the other equipment for installationand operating instructions.

Figure 1. Typical 627 Series Self-OperatedPressure Reducing Regulator

W4793

DescriptionThe 627 Series self-operated pressure reducing regulators(figure 1) are for high and low pressure systems. Theseregulators can be used with natural gas, air, or a variety ofother gases. Performance characteristics vary according toconstruction (see the AVAILABLE CONFIGURATIONSspecification in table 1).

SpecificationsTable 1 gives some general specifications for the 627Series regulators. The nameplates (figure 2) gives detailedinformation for a particular regulator as it comes from thefactory.

Figure 2. Nameplates

10B3679-D