Fisher D2T FloPro Instruction Manual

Instruction Manual

D104138X012

D2T FloPro Valve

June 2017

Fisher

™

D2T FloPro Control Valve

Contents

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

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

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

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

Specifications 3...............................

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

Setting Valve FloPro Flow Adjuster 4..............

Changing Actuator Action from

(Air‐to‐Open) to (Air‐to‐Close) 4...............

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

Valve Trim Maintenance 6......................

Packing, Valve Trim, and

Actuator Maintenance 7.....................

NPT Port Location 13............................

Parts Kits 16...................................

Parts List 16...................................

Figure 1. Fisher D2T FloPro Control Valve

Introduction

Scope of Manual

This instruction manual provides installation, maintenance, and parts information for the NPS 1 Fisher D2T FloPro
control valve and actuator.

Do not install, operate, or maintain a D2T FloPro control 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 sales office
Partner before proceeding.

Description

The D2T FloPro control valve (figure 1) is a compact, rugged valve designed for on/off control of a variety of fluids at
pressures up to 155 bar (2250 psig). This valve is ideal for use as a dump valve on gas separators and scrubbers. It is
also well suited for other high pressure applications in natural gas production, compression, and processing. The D2T
FloPro valve has threaded end connections and is available in an NPS 1 globe style valve body.

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www.Fisher.com

D2T FloPro Valve

June 2017

Table 1. Specifications

Instruction Manual

D104138X012

Valve Assembly Pressure Class

ASME B16.34 CL900

Maximum Inlet Pressure and Temperature

155 bar from -46 to 93°C, and 150 bar at 149°C.
(2250 psig from –50 to 200°F, and 2185 psig at
300°F)

Maximum Allowable Pressure Drop

Flow Down

(2)

(1)

Maximum Inlet Pressure: 155 bar (2250 psig)
Maximum Outlet Pressure: 103 bar (1500 psig)

Flow Up

Maximum Inlet Pressure: 103 bar (1500 psig)
Maximum Outlet Pressure: 103 bar (1500 psig)

Shutoff Classification

Class IV ANSI/FCI 70‐2 and IEC 60534‐4

Construction Materials

Valve Body and Bonnet: ASME SA 352 LCC
Valve Plug and Seat:

J S17400 double H1150

J R30006 (Alloy 6) or

Valve Stem: S31600
O‐Rings: HNBR (Hydrogenated Nitrile)
Packing: PTFE/Carbon PTFE
Packing Springs: N07718
Stem Bushing: PPS (polyphenylene sulfide)
Actuator Diaphragm: Nitrile/Polyester
Actuator Springs: Zinc‐plated steel

(1)

Port Diameter

13 mm (0.5 inch)

Maximum Travel

13 mm (0.5 inch)

Approximate Weight

7.7 kg (17 lb)

Material Temperature Capabilities

Valve Body Assembly: -46 to 149°C (-50 to 300°F)
Actuator Assembly: -46 to 93°C (-50 to 200°F)

Bonnet/Body Connection

Threaded with leakoff bleed

Standard Actuator Configuration

The D2T FloPro actuator is an on/off
spring‐and‐diaphragm.

Globe Valve Body: Supplied as either Air‐to‐Open or
Air‐to‐Close.

Maximum Actuator Casing Pressure

2.8 bar (40 psig)

Minimum Required Actuator Casing Pressure

2.1 to 2.4 bar (30 to 35 psig)

Actuator Diaphragm Effective Area

194 cm

2

(30 square inches)

Flow Characteristic

FloPro Characterized

1. The pressure or temperature limits in the referenced tables and any applicable ASME code limitations should not be exceeded.

2. Standard flow direction.

Educational Services

For information on available courses for Fisher D2T valves, as well as a variety of other products, contact:

Emerson Automation Solutions
Educational Services - Registration
Phone: [phone] or 1-800-338-8158
E-mail: [e-mail]
emerson.com/fishervalvetraining

2

Actuator Pressure Connections

1/4 NPT internal

Instruction Manual

D104138X012

D2T FloPro Valve

June 2017

Specifications

Table 1 lists specifications for the D2T FloPro control valve. Some of the specifications for a given control valve as it
originally comes from the factory are stamped on a nameplate located on the upper diaphragm casing flange.

Installation

WARNING

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

Personal injury or equipment damage caused by sudden release of pressure may result if the valve assembly is installed
where service conditions could exceed the limits given in table 1 or on the appropriate nameplates. To avoid such injury or
damage, provide a relief valve for overpressure protection as required by accepted industry or local, state, and Federal
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 at the beginning of the Maintenance section in this
instruction manual.

CAUTION

This valve is intended for a specific range of pressures, temperatures, and other service conditions (see table 1). Applying
different pressure, temperature, and other conditions to the valve could result in parts damage, malfunction of the valve,
or loss of control of the process. Do not expose this valve to service conditions or variables other than those for which this valve
is intended. If you are not sure what these conditions are, you should contact your Emerson sales office
Partner for more complete specifications.

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. The control valve assembly may be installed in any orientation unless limited by seismic criteria.

The standard flow direction is indicated by the arrow on the valve body.

3. Use accepted piping practices when installing the valve in the pipeline.

4. If continuous operation is required during inspection or maintenance, install a three‐valve bypass around the

control valve assembly.

Note

™

The NPS 1 D2T FloPro valve is equipped with ENVIRO‐SEAL

D2T packing.

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The actuator is available from the factory as either air‐to‐open or air‐to‐close.

Additionally, the actuator as shipped from the factory, has the FloPro flow adjuster set at a 0.375 inch port flow rate
position. If some other flow rate is desired, see the Setting Valve FloPro Flow Adjuster section in this manual.

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D2T FloPro Valve

June 2017

Figure 2. Flow Rate Adjustments

Instruction Manual

D104138X012

3

FloPro TRAVEL
INDICATOR

FLOW ADJUSTER

GE15452

1

0.5 INCH FLOW RATE
Cv = 6

Fl = 0.77

Xt = 0.476

1

SAFETY
VENT

2

0.375 INCH FLOW RATE
Cv = 4

Fl = 0.706

Xt = 0.319

2

3

0.25 INCH FLOW RATE
Cv = 2

Fl = 0.65

Xt = 0.245

Setting Valve FloPro Flow Adjuster

Air‐to‐Open Actuator Action

1. To change the valve flow rate, loosen the flow adjuster socket head cap screws (key 29), and reposition the flow
adjuster halves (key 14 and 15) to the desired flow rate position. See figure 2 for flow rate settings.

Air‐to‐Close Actuator Action

1. Attach a pressure line to the actuator. Supply pressure to the actuator to seat the plug in the seat ring.

2. To change the valve flow rate, loosen the flow adjuster socket head cap screws (key 29), and reposition the flow
adjuster halves (key 14 and 15) to the desired flow rate position. See figure 2 for flow rate settings.

Changing Actuator Action from (Air‐to‐Open) to (Air‐to‐Close)

Key numbers are referenced in figures 6 and 7.

WARNING

To prevent possible personal injury or property damage from removing the casing cap screws in the wrong sequence,
follow the procedure as outlined below for removing the upper casing.

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Instruction Manual

D104138X012

D2T FloPro Valve

June 2017

1. Remove the six short actuator casing cap screws (key 22) first. Once these have been removed from the actuator
assembly, remove the two long actuator cap screws (key 30) by alternating between them as you loosen them, to
keep the upper casing (key 21) level during this procedure.

Note

Be aware as you loosen and remove the actuator cap screws that the actuator springs are under compression.

2. Remove the upper casing (key 21) and the springs (key 27).

3. Do not turn the valve stem (key 4) while removing the diaphragm hex nut (key 26). Keep the stem from turning by
using an open end wrench on the machined flats located on the valve stem above the flow adjuster for this
procedure. Continue the actuator disassembly by removing the washer (key 24) diaphragm plate (key 25),
diaphragm (key 19), washer (key 36), and O‐ring (key 37). Inspect the diaphragm for any wear or damage. Replace
with a new one if necessary.

4. Unscrew the socket head cap screws (key 29), and remove the flow adjuster halves (key 14 and 15). Position the
stem (key 4) to its most upward position.

5. Place 2 of the springs (key 27) from the actuator into the bottom casing (key 20), equally spaced, 180 degrees
apart. Place the washer (key 36) over the valve stem, as shown in view A of figure 7. Then place the O‐ring (key 37)
over the valve stem. Next install the diaphragm plate (key 25) and, using the diaphragm plate, correctly position the
actuator springs.

6. Place the diaphragm (key 19) over the stem, along with washer (key 24). Position the diaphragm so the holes in the
diaphragm align with the holes in the bottom casing.

7. Insert a 1/8 inch diameter drift punch, or other suitable device through the 5/32 inch diameter hole in the valve
stem located below the bottom of the previously removed flow adjuster. Install hex nut (key 26) and tighten to 10
NSm (90 lbfSin). Use the 1/8 inch drift punch or other holding device to turn the stem to align the holes of the
diaphragm (key 19) to the lower casing (key 20).

8. Position the upper casing and install the two long cap screws (key 30) opposite one another. Install the six shorter
cap screws (key 22) and the hex nuts, tightening the actuator casing cap screws evenly using a cross‐tightening
procedure. Torque to 10 NSm (8 lbfSft).

9. Connect a pressure line to the top actuator pressure connection, and apply pressure to the actuator. Stroke the
actuator until the valve plug is seated on the seat ring. Install the flow adjuster, positioning it to the desired travel.
Tighten the flow adjuster socket head cap screws to 3 NSm (26 lbfSin).

10. Release the actuator pressure, and install the vent plug (key 28) into the bottom casing pressure connection.

Maintenance

Valve parts are subject to normal wear and must be inspected and replaced as necessary. Inspection and maintenance
frequency depends on the severity of service conditions. This section includes instructions for packing and trim
maintenance, and replacing actuator parts.

All maintenance operations can be performed with the valve in the line.

Note

Whenever a gasket seal or O‐ring is disturbed by removing or shifting gasketed parts, a new gasket should be installed upon
reassembly. This is necessary to ensure a good gasket seal, since the used gasket or O‐ring will not seal properly.

5