Emerson Fisher D, Fisher DA Instruction Manual

Instruction Manual

D100386X012

Fisherr D and DA Valves

DandDAValves

June 2014

Contents

Introduction 1.................................

Scope of Manual 1.............................

Description 1.................................

Specifications 2...............................

Educational Services 2.........................

Ceramic Trim 3................................

Installation 3..................................

Maintenance 5.................................

Packing Lubrication 5..........................

Packing Maintenance 6.........................

Replacing Packing 6...........................

Trim Maintenance 8...........................

Disassembly 8.............................

Lapping Metal Seats 8......................

Assembly 9...............................

Parts Ordering 9................................

Parts Kits 10...................................

Parts List 10...................................

Figure 1. Fisher D Valve with 657 Actuator

W0232

Introduction

Scope of Manual

This instruction manual includes installation, maintenance, and parts information for Fisher D and DA valves. Refer to
separate manuals for instructions covering the actuator, positioner, and accessories.

Do not install, operate, or maintain a D or DA valve without being fully trained and qualified in valve, actuator, and
accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important to
carefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings. If you
have any questions about these instructions, contact your Emerson Process Management sales office before
proceeding.

Unless otherwise noted, all NACE references are to NACE MR0175-2002.

Description

The D globe-style (figure 1) and DA angle-style (figure 5) valves are single-port, metal-seated valves for high-pressure
applications.

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DandDAValves

June 2014

Table 1. Specifications

Instruction Manual

D100386X012

Maximum Inlet Pressures and Temperatures

(1)

If the valve nameplate shows an ASME
pressure-temperature class, maximum inlet pressure
and temperature is consistent with applicable ASME
class per ASME B16.34.
If the nameplate does not show an ASME class, it will
show a maximum cold working pressure at 38_C
(100_F) (for example, 3600, 6000, 9000, or 10,000
psi)

Maximum Allowable Pressure Drops

(1)

Flow up: Capable of full rated pressure drops
Flow down: See table 2 for pressure drop limits for
ceramic trim

Shutoff Classification Per ANSI/FCI 70-2
and IEC 60534-4

Standard: Class IV
Optional: Class V

1. Do not exceed thepressure or temperature limitsin this manual and any applicable standard limitations.

Maximum Service Temperature

232_C(450_F)

Flow Characteristic

Equal Percentage

Flow Direction

DValve:Flow up through the seat ring and out past
the valve plug
DA Valve: Flow in either direction

Approximate Weight

DValve:34 kg (75 lbs)
DA Valve: 46 kg (100 lbs)

Specifications

Specifications for these valves are in table 1. Some of the specifications for a given valve appear on a nameplate, which
is attached to the valve actuator or wired to the valve assembly if the valve was purchased without an actuator.

Educational Services

For information on available courses for Fisher D and DA valves, as well as a variety of other products, contact:

Emerson Process Management
Educational Services - Registration
Phone: [phone] or 1-800-338-8158
E-mail: [e-mail]
http://www.emersonprocess.com/education

Table 2. Flow Down Pressure Drop Limits - Ceramic Trim Only

VALVE SIZE

NPS

1 414 414 414 193 --- ---

2 689 689 689 462 262 165

1 6000 6000 6000 2800 --- ---

2 10,000 10,000 10,000 6700 3800 2400

6.4 (0.25) 9.5 (0.375) 12.7 (0.5) 19.1 (0.75) 25.4 (1) 31.8 (1.25)

SEAT RING DIAMETER, mm (INCHES)

Pressure Drop, bar

Pressure Drop, psi

2

Instruction Manual

D100386X012

DandDAValves

June 2014

Ceramic Trim

Some types of ceramic trim, including the VTC (very tough ceramic) variety, can create a spark under certain
circumstances. When the edge of a ceramic part is struck against a second ceramic part with enough force, a spark can
be created.

WARNING

Avoid personal injury and property damage from ignition of process fluid caused by sparks from ceramic trim.

Do not use ceramic trim where the process fluid is unstable or if it is an explosive mixture (such as ether and air).

Installation

WARNING

Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal
injury.

To avoid personal injury or property damage resulting from the sudden release of process pressure or bursting of parts, do
not install the valve assembly where service conditions could exceed the limits given in this manual or on the appropriate
nameplates. Use pressure-relieving devices as required by government or accepted industry codes and good engineering
practices.

Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.

If installing into an existing application, also refer to the WARNING a t the beginning of the Maintenance section in this
instruction manual.

CAUTION

When ordered, the valve configuration and construction materials were selected to meet particular pressure, temperature,
pressure drop, and controlled fluid conditions. Some body/trim material combinations are limited in their pressure drop
and temperature ranges. Do not apply any other conditions to the valve without first contacting your Emerson Process
Management sales office.

1. Before installing the valve, inspect it to be certain that the valve body cavity is free of foreign material. Clean out all

pipelines to remove scale, welding slag, and other foreign materials.

2. Install the valve so that flow through the valve is in the direction shown by the arrow cast on the valve body. The

control valve assembly may be installed in any position unless limited by seismic considerations. However, the
normal method is with the actuator vertical above the valve. With some valves, the actuator may need support
when it is not vertical. For more information, consult your Emerson Process Management sales office.

3. Use accepted piping and welding practices when installing the valve in the line. For flanged valve bodies, use

suitable gaskets between the body flanges and pipeline flanges.

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DandDAValves

June 2014

Instruction Manual

D100386X012

CAUTION

Depending on valve body materials used, post-weld heat treating might be needed. If so, damage to internal elastomeric
and plastic parts, as well as internal metal parts is possible. Shrink-fit pieces and threaded connections may also loosen. In
general, if post-weld heat treating is needed, remove all trim parts. Contact your Emerson Process Management sales office
for additional information.

For screwed end connections, apply pipe compound to pipeline threads.

4. To allow continuous operation during inspection or maintenance, install a three-valve bypass around the control

valve assembly.

5. If you received the actuator and valve body shipped separately, refer to the appropriate actuator instruction manual

for the actuator mounting procedure.

Figure 2. Lubricator and Lubricator/Isolating Valve (optional)

LUBRICATOR

10A9421-A
AJ5428-D
A0832-2

LUBRICATOR/ISOLATING VALVE

WARNING

Personal injury could result from packing leakage. Valve packing was tightened before shipment; however the packing
might require some readjustment to meet specific service conditions.

4