Emerson Fisher Type 99 User Manual

Type 99
D100260X012
Instruction Manual
Form 589
February 2016
www.fisherregulators.com
Type 99 Pressure Reducing Regulator
Introduction
Scope of the Manual
This manual describes and provides instructions for
installation, startup, adjustment and parts ordering
information of Type 99 pressure reducing regulator
complete with standard P590 Series integral  lter.
Information on other equipment used with this
regulator can be found in separate manuals.
Figure 1. Type 99 Regulator with Type 61H (High Pressure) Pilot
W2676
!
WARNING
Since a pilot-operated regulator is
constructed of both a pilot and a main
valve, care should be used not to exceed
the maximum inlet pressure shown on
the nameplate of either unit. When inlet
pressure exceeds the pilot limitation, a
pilot supply reducing regulator and/or
relief valve is required.
!
WARNING
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or  re 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 Emerson Process
Management Regulator Technologies,
Inc. 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.
Call a gas service person to service the
unit. Only a quali ed person must install
or service the regulator.

Emerson Fisher Type 99 Specifications

General

Action	Direct or Reverse
Control Mode	Proportional
Input Signal	3 to 15 psig (0.2 to 1.0 bar) or 6 to 30 psig (0.4 to 2.1 bar)
Output Signal	3 to 15 psig (0.2 to 1.0 bar) or 6 to 30 psig (0.4 to 2.1 bar)
Temperature Range	180°F (-29 to 82°C)
Ambient Temperature Range	180°F (-29 to 82°C)
Accuracy	±1% of span
Repeatability	±0.5% of span
Materials	Aluminum, Stainless Steel

Summary

Introduction

Scope of the Manual

Details the manual's content for installation, startup, adjustment, and parts ordering.

Specifications

Available Constructions

Lists different Type 99 regulator models based on pilot type and pressure range.

Maximum Allowable Inlet Pressure

Outlines the maximum inlet pressure ratings for various pilot types.

Temperature Capabilities

Lists the temperature limits for regulators using different seal materials.

Principle of Operation

Yoked Double-Diaphragm Pilot Function

Explains the pilot's role in achieving fast response and accurate pressure control.

Installation and Monitoring

General Installation Guidelines

Provides essential safety warnings and general instructions for regulator installation.

Working Monitor Installation

Describes the installation of a monitoring pilot downstream of a working regulator.

Wide-Open Monitor Installation

Details the setup where an upstream regulator monitors a working regulator.

Operation and Maintenance

Startup Procedure

Step-by-step guide for safely bringing the regulator into operation.

Adjustment Procedure

Instructions on how to set the desired outlet pressure using the pilot control spring.

Shutdown Procedure

Steps for safely isolating and depressurizing the regulator system.

Maintenance Procedures

Covers general maintenance and specific procedures for actuators, filters, and pilots.

Parts Information

Parts Ordering and List

Reference for ordering specific regulator components and repair kits by part number.

Actuator and Main Body Assembly

Component Descriptions

Detailed list of parts for the actuator and main body assembly with key numbers.

Pilot and Tubing Parts

Low or High-Pressure Pilot Parts

Lists parts for low/high-pressure pilot and tubing, with corresponding part numbers.

Type 61HP Pilot Parts

Details parts specific to the Type 61HP extra high-pressure pilot.