Emerson Fisher 167DA - User Manual

167D Series
Instruction Manual
Form 5859
June 2011
D103234X012
www.sherregulators.com
167D Series Switching Valves
TYPE 167D TWO-WAY SWITCHING VALVE TYPE 167DA THREE-WAY SWITCHING VALVE
Figure 1. 167D Series Switching Valves
!
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
®
switching valves 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 switching valve 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 167D Series
switching valves.
Introduction
Scope of the Manual
This manual provides instructions for the installation,
maintenance, and parts ordering for the 167D Series
Switching Valves. Instructions and parts lists for other
equipment mentioned in this instruction manual, as
well as for other switching valves are found in
separate manuals.
P1184P1185

Emerson Fisher 167DA Specifications

General

Brand	Emerson
Model	Fisher 167DA
Category	Control Unit
Language	English

Summary

Introduction

Scope of the Manual

Outlines the manual's instructions for installation, maintenance, and parts ordering for 167D Series valves.

Specifications

Available Configurations

Lists the different types of 167D Series switching valves available.

Body Size and Connection Style

Details body sizes and connection types for ports.

Maximum Operating Inlet Pressure

Specifies the maximum allowable inlet pressure for different valve types.

Set Pressure Ranges

Refers to tables for set pressure range information.

Maximum Diaphragm Pressure

Defines the maximum pressure the diaphragm can withstand.

Flow and Sizing Coefficients

Refers to tables for flow and sizing coefficient data.

Spring Case Vent Location

Describes the standard and optional vent locations for the spring case.

Temperature Capabilities

Lists temperature limits for Nitrile and Fluorocarbon seals.

Approximate Weights

Provides the weights for different valve types.

Available Options

Details various optional features and configurations for the valves.

Product Description

Principle of Operation

Overpressure Protection

Installation

Startup and Adjustment

Maintenance

Trim Maintenance

Diaphragm Maintenance

Parts Ordering

Parts List

Lists all available parts with their corresponding keys and part numbers.