Emerson Fisher Baumann 26000 Instruction Manual

Instruction Manual

D103363X012

Baumann™ 26000 Corrosion Resistant
Control Valve

26000 Valve

May 2012

Contents

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

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

Safety Precautions 2...........................

Maintenance 2.................................

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

Air Piping 4...................................

Packing Adjustments 4.........................

Disassembly 4................................

Reassembly and Calibration 4...................

Parts Ordering 6................................

Dimensions and Weights 9.......................

Figure 1. Baumann 26000 Control Valve

W9766

26000 Control Valve with

Baumann 32 Actuator
andDualTravelStops

X0423-1

26000 Valve with Baumann 32

Actuator, Dual Travel Stops, and

FIELDVUEt DVC6200 Digital

Valve Controller

Introduction

The Baumann 26000 Corrosion Resistant Control Valve (figure 1) features a flangeless wafer valve body. The 316
stainless steel flangeless body and thru-hole wafer design allows for installation between plastic pipeline flanges
without risk of gasket leakage. This same valve body, fully pressurized, retains an all wetted PTFE interior resulting in a
solid mechanical structure.

Scope of Manual

This instruction manual includes installation, maintenance, and parts information for the Baumann 26000 corrosion
resistant control valve.

Do not install, operate, or maintain Baumann 26000 control valves 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.

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26000 Valve

May 2012

Instruction Manual

D103363X012

WARNING

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

Personal injury or property damage caused by sudden release of pressure or bursting of pressure retaining parts may result
if service conditions exceed those for which the product was intended. To avoid injury or damage, provide a relief valve for
over pressure protection 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 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 application specifications. Applying
different pressures and temperatures to the valve could result in parts damage, malfunction of the control valve or loss of
control of the process. Do not expose this product to service conditions or variables other than those for which the product
was intended. If you are not sure what these conditions are you should contact your Emerson Process Management sales
office for more complete specifications. Provide the product serial numbers (shown on the nameplate) and all other
pertinent information.

WARNING

If you move or work on an actuator installed on a valve with loading pressure applied, keep your hands and tools away
from the stem travel path to avoid personal injury. Be especially careful when removing the stem connector to release all
loading on the actuator stem whether it be from air pressure on the diaphragm or compression in the actuator springs.

Likewise take similar care when adjusting or removing any optional travel stop. Refer to the relevant actuator Maintenance
Instructions.

If hoisting the valve, take care to prevent people from being injured in case the hoist or rigging slips. Be sure to use
adequate sized hoists and chains or slings to handle the valve.

WARNING

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

Maintenance

WARNING

Avoid personal injury and property damage from sudden release of process pressure or bursting of parts. Before
performing any maintenance operations:

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Instruction Manual

D103363X012

D Do not remove the actuator from the valve while the valve is still pressurized.

D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations.

D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the

actuator cannot suddenly open or close the valve.

D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure

on both sides of the valve. Drain the process media from both sides of the valve.

D Depending on the actuator construction, it will be necessary to manage the pneumatic actuator spring

pre-compression. It is essential to refer to the relevant actuator instructions in this manual to perform safe removal of
the actuator from the valve.

D Use lock-out procedures to be sure the above measures stay in effect while you work on the equipment.

D The valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the

pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings, or when
loosening the packing box pipe plug.

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

media.

Note

Whenever a gasket seal is disturbed by removing or shifting gasketed parts, install a new gasket during reassembly. This provides a
good gasket seal because the used gasket may not seal properly.

26000 Valve

May 2012

WARNING

Avoid personal injury or property damage by thoroughly cleaning the line of all dirt, welding chips, scale, oil or grease, and
other foreign material. Failure to do so could result in parts damage, malfunction of the control valve or loss of control of
the process.

To avoid personal injury or property damage, do not attempt to do any work on a valve while the system is in operation,
the valve must be isolated 100% from the active system and the isolated line voided of pressure and/or hazardous fluids.

Installation

1. Before installing the valve in the pipeline, thoroughly clean the line of all dirt, welding chips, scale, oil or grease, and

other foreign material.

2. Install the valve so the controlled fluid will flow through the valve body in the direction indicated by the arrow cast

on the valve body.

3. Athree-valvebypassmustbeusedtopermitremovalofthecontrolvalvefromthelinewithoutshuttingdownthe

system.

4. In case of a heat-insulated installation, insulate the valve body only, not the bonnet.

CAUTION

The PTFE valve body insert protrudes slightly beyond both sides of the valve body (key 1); it is highly recommended that
the included PTFE encapsulatedline flange adapter gaskets (key 21) be utilized. (Refer to figures 3, 2, and 4).

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26000 Valve

May 2012

Instruction Manual

D103363X012

Air Piping

1. For an air-to-extend actuator (air-to-close action), connect the actuating air pressure line to the 1/4 NPT opening in

the upper diaphragm case. For an air-to-retract actuator (air-to-open action) connect the actuating air pressure line
to the 1/4 NPT in the lower diaphragm case.

2. Use 6.4 mm (1/4 inch) O.D. tubing or equivalent for all air lines. If air line exceeds 8 m (25 ft) in l ength, 9.5 mm (3/8

inch) tubing is preferred. Air lines must not leak. Air pressure not to exceed 2.5 bar (35 psig).

Packing Adjustments

Refer to figures 3, 2, and 4)

Should seat leakage or leakage by the bonnet (key 8) occur, try to retighten the internal packing (key 17) by
disconnecting the air line to the actuator, loosen the hex clamp nut (key 12) and turn the bonnet (key 8) clockwise into
the valve body (key 1). This rotation will compress the packing (key 17) around the plug and stem assembly (key 4) and
against the valve body interior. Retighten the hex clamp nut (key 12) and recheck for leakage.

Should the valve stem packing (key 14) need to be adjusted, turn the packing follower (key 10) clockwise to tighten or
counterclockwise to loosen.

Disassembly

Significant wear or contamination may require replacement of the plug or seals. Proceed as follows:

1. Loosen the yoke clamp nut (key 9) and disconnect the actuator (see appropriate actuator instructions).

2. Loosen the packing follower (key 10) and the hex clamp nut (key 12).

3. Unscrew and remove the bonnet (key 8) from the valve body (key 1).

4. Remove the packing (key 17) from the valve body (key 1) by flowing air into port A. This will drive the V-ring packing

seals and plug out of the top opening of the valve body.

CAUTION

The PTFE valve body insert protrudes slightly beyond both sides of the valve body (key 1); it is highly recommended that
the included PTFE encapsulatedline flange adapter gaskets (key 21) be utilized.

Reassembly and Calibration

1. Lay out all parts and clean the valve body thoroughly.

2. Hold the valve body (key 1) upside down, see figure 5.

3. Insert the lower (half round) packing ring.

Note

The flat side should rest in the bottom of the housing bore.

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