Fisher 1098-EGR User Manual

Types 1098-EGR and 1098H-EGR
D100339X012
Instruction Manual
Form 5084
December 2008
www.emersonprocess.com/regulators
Types 1098-EGR and 1098H-EGR Pressure
Reducing Regulators
!
WARNING
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,

causing property damage and personal
injury or death.
Fisher
®
regulators must be installed,
operated, and maintained in accordance
with federal, state, and local codes, rules
and regulations, and Fisher instructions.
If the regulator vents gas or a leak
develops in the system, service to the unit
may be required. Failure to correct trouble
could result in a hazardous condition.
Installation, operation, and maintenance

personnel may result in improper
adjustment and unsafe operation. Either
condition may result in equipment

personnel when installing, operating,
and maintaining the Types 1098-EGR and
1098H-EGR pressure reducing regulator.
Introduction
Scope of Manual
This manual describes and provides instructions
and parts list for Type 1098-EGR or 1098H-EGR
regulator complete with a standard P590 Series
lter and either a 6350 Series regulator, a 61 Series
pilot, or a Type Y600AM Pilot. The Type 1806 relief
valve is also covered when a 61 Series pilot is used.
Instructions and parts lists for monitoring pilots and
other equipment used with this regulator are found in
separate manuals.
Figure 1. Type 1098-EGR
W6956
Description
Types 1098-EGR and 1098H-EGR regulators provide
economical and accurate pressure control in a
wide variety of applications; natural gas distribution
systems; fuel gas supply to industrial boilers, furnaces,
ovens, and mixers; and large commercial/industrial
establishments such as shopping centers and schools.
They are also used in plant air service and in liquid
service where a slow stroking time (approximately
30 to 90 seconds) is desired on both opening and
closing the main valve.

The Specications section lists pressure limitations
and other specications for various Types 1098-EGR
and 1098H-EGR constructions. Specications for a
given regulator as it originally comes from the factory
are stamped on nameplates located on both the

Fisher 1098-EGR Specifications

General

Brand	Fisher
Model	1098-EGR
Category	Controller
Language	English

Summary

Introduction

Scope of Manual

Describes manual's scope and content for 1098-EGR/1098H-EGR regulators.

Description

Specifications

Body Sizes and End Connection Styles

Details body sizes and available end connection styles for regulators.

Outlet Pressure Ranges

Lists the various outlet pressure ranges achievable with different pilot types.

Maximum and Minimum Differential Pressures

Specifies differential pressure limits for main valve selection.

Actuator Sizes and Maximum Pressures

Details actuator sizes and their corresponding maximum pressure ratings.

Material Temperature Capabilities

Lists temperature limits for various diaphragm materials (Nitrile, FKM, EPR).

Options

Outlines available optional constructions and features for the regulators.

Supply Pressure Settings Required for the Type 95H Regulator

Table showing required supply pressure settings for the Type 95H regulator.

Installation and Startup

Standard Single-Pilot Regulator Installations

Provides instructions for installing single-pilot regulator configurations.

Prestartup Considerations

Lists essential checks and conditions before starting up the regulator.

Pilot Adjustment

Startup

Dual-Pilot Boiler Fuel Control

Details specific applications for dual-pilot boiler fuel control.

Boiler Fuel Pressure Control

Installation

Step-by-step guide for installing boiler fuel control configurations.

Working Monitor (Figure 7)

Installation

Instructions for installing the working monitor configuration.

Startup

Procedure for starting up the working monitor system.

Wide-Open Monitor (Figure 8)

Installation

Instructions for installing the wide-open monitor configuration.

Startup

Procedure for starting up the wide-open monitor system.

Shutdown

Single-Pilot, Dual-Pilot Regulator, or Wide-Open Monitor

Steps for shutting down single-pilot, dual-pilot, or wide-open monitor systems.

Working Monitor

Procedure for shutting down a working monitor installation.

Maintenance

Design Type EGR Main Valve

Replacing Quick-Change Trim Package

Procedure for replacing the entire trim package on the main valve.

Replacing Travel Indicator Assembly

Replacing Trim Parts

P590 Series Filter

Type 6351 Pilot

Types 6352 through 6354M Pilots

61 Series Pilot and Type 1806 Relief Valve

Type Y600AM Pilot

Body Area

Procedure for accessing internal parts of the Y600AM pilot body.

Diaphragm and Spring Case Area

Procedure for accessing diaphragm and spring case components of the Y600AM pilot.

Type 95H Supply Pressure Regulator

Types 1098 and 1098H Actuator and Pilot Mounting Parts

Parts Ordering

Parts List

Type EGR Main Valve (Figures 12 and 13)

Type EGR Main Valve (Figures 12 and 13) (continued)

Type EGR Main Valve (Figures 12 and 13) (continued)

Type EGR Main Valve (Figures 12 and 13) (continued)

Type EGR Main Valve (Figures 12 and 13) (continued)

Type EGR Main Valve (Figures 12 and 13) (continued)

Types 1098 and 1098H Actuators (Figure 14)

Types 1098 and 1098H Actuators (Figure 14) (continued)

Standard P590 Series Filter (Figure 15)

Type 6351 Pilot (Figure 16)

Type 6351 Pilot (Figure 16) (continued)

Types 6352, 6353, 6354L, 6354M, and 6354H Pilots (Figure 17)

Types 6352, 6353, 6354L, 6354M, and 6354H Pilots (Figure 17) (continued)

Types 6352, 6353, 6354L, 6354M, and 6354H Pilots (Figure 17) (continued)

61 Series Pilots (Figures 18, 19, and 20)

61 Series Pilots (Figures 18, 19, and 20) (continued)

61 Series Pilots (Figures 18, 19, and 20) (continued)

Types Y600A and Y600AM Parts List (Figures 21 through 23)

Types Y600A and Y600AM Parts List (Figures 21 through 23) (continued)

Type 95H Regulator (Figure 24)

Mounting Parts

6350 Series Mounting Parts (Figure 25)

Lists mounting parts for 6350 Series regulators.

Mounting Parts (continued)

61 Series Mounting Parts (Figure 26)

Lists mounting parts for 61 Series pilots and relief valves.

Auxiliary Pilot Mounting Parts

Lists mounting parts for auxiliary pilot configurations.

Working Monitor Assembly

Mounting Parts (continued)

Type 1098-EGR with Type Y600AM Mounting Parts (Figure 28)

Details mounting parts for Type 1098-EGR with Y600AM pilot.