Emerson Baumann 24000 Little Scotty User manual

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Baumann™24000 Little Scotty™Bronze
Control Valve
Contents
Introduction 1...................................
Scope of Manual 1.............................
Safety Precautions 2...........................
Maintenance 2.................................
Installation 3..................................
Air Piping 3...................................
Disassembly 4................................
Actuator Removal 4........................
Valve Body Disassembly 5...................
Lapping the Valve Seat 5.......................
Replacing Packing 5...........................
Actuator and Valve Body Reassembly 5...........
Parts Ordering 6................................
Dimensions and Weights 11......................
Figure 1. 24000 Little Scotty Control Valve with
Baumann 32 Actuator and FIELDVUE™ DVC2000
Digital Valve Controller
W9753
Introduction
Baumann Little Scotty industrial control valves (figure 1) are intended for general utility service in pressure, flow, and
temperature control applications.
Industrial grade control valves exhibit low hysteresis and deadband, good control characteristics, tight shutoff, rugged
construction, high performance packing, and easy maintainability. This translates into reduced maintenance costs,
reduced process variability, and increased process availability.
Scope of Manual
This instruction manual includes installation, maintenance, and parts information for the Baumann 24000 bronze
control valve.
Do not install, operate, or maintain Baumann 24000 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 sales office or Local Business
Partner before proceeding.
Instruction Manual
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24000 Valve
June 2017

Instruction Manual
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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 Automation Solutions 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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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.
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 damage to the seating and sealing surfaces of the valve and result in
damage to the valve and release of process materials.
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. A three-valve bypass must be used to permit removal of the control valve from the line without shutting down the
system.
4. In case of a heat-insulated installation, insulate the valve body only, not the bonnet.
WARNING
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.
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 to the lower diaphragm case.

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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 length, 9.5 mm (3/8
inch) tubing is preferred. Air pressure not to exceed 2.41 barg (35 psig).
Disassembly
WARNING
If there is evidence of process fluid under pressure leaking from the joint, retighten the valve body/joint nuts and return to
the Warning at the beginning of the Maintenance section. This Warning provides proper steps to isolate the valve and
relieve process pressure.
CAUTION
When assembling or disassembling the valve, do not turn the valve stem while the plug is in contact with the valve seat.
This can damage the seating surface very quickly.
CAUTION
When adjusting the valve stem do not grip the stem directly with pliers or a wrench. This will damage the surface of the
stem, and cause damage to the packing in the valve. Instead, counter-tighten the two locknuts (key 27) on the stem (key 5)
together. This will allow you to turn the stem by turning the locknuts (key 27) with a wrench.
When placing the valve in a vise, clamp the flat end faces of the valve. Do not try to clamp the rounded sides of the valve.
This will ruin the valve.
Actuator Removal
Access to the internal components of the valve body can be accomplished with the actuator removed. For actuator
maintenance see the following instruction manual (Baumann Actuator Instructions, D103352X012).
Air-to-Close Actuators
1. Disconnect air supply to the actuator and remove air tubing.
2. Loosen drive nut (key 9) and then remove plug and stem (keys 4 and 5) assembly by holding actuator stem still
while unthreading plug and stem assembly counterclockwise.
3. Remove stem locknuts (key 27), travel indicator (key 58), and yoke drive nut (key 9).
4. Remove actuator from valve.
5. Disconnect air supply to actuator and remove air tubing.
Air-to-Open Actuators
1. Using flexible tubing, apply sufficient air pressure to the actuator to lift the plug off the seat.
2. Loosen drive nut (key 9) and then remove plug and stem (keys 4 and 5) assembly by holding actuator stem still
while unthreading plug and stem assembly counterclockwise.
3. Remove stem locknuts (key 27), travel indicator (key 58), and yoke drive nut (key 9).

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4. Remove actuator from valve.
5. Disconnect air supply to actuator and remove air tubing.
Valve Body Disassembly
1. After removing the actuator, unscrew bonnet (key 8), and plug and stem (keys 4 and 5) from valve body (key 1). A
new body gasket (key 49) should be installed each time the valve is disassembled.
2. Loosen packing spring load by removing the packing follower (key 10).
3. Remove the plug and stem assembly by pulling it out through the bottom of the bonnet (key 8) while rotating the
stem (key 5). This will help prevent damage to the packing components.
Note
Handle the parts carefully to avoid damaging the seating and guiding surfaces. Wipe the parts with a clean soft cloth and examine
for signs of wear or damage.
Lapping the Valve Seat
If valve seat leakage becomes excessive, it may be necessary to lap the valve seat.
Lapping is the process of mating the valve plug to the seat ring, with an abrasive to produce a close fit. When valve seat
leakage becomes excessive, lapping becomes necessary. The plug and seat ring seating surfaces should be free of
large scratches or dents and the contact surface of the seats should be as narrow as possible.
1. Use a good quality lapping compound with a mixture that contains 280 to 600 grit. Apply at several spots around
the plug seating surface. Replace the plug (key 4) in the bonnet (key 8).
2. Screw the bonnet (key 8) loosely into the valve body (key 1) to serve as a guide during the lapping operation.
3. Lap the valve by applying a slight pressure on the stem and rotate the stem in short oscillating strokes
approximately 8 to 10 times or until you see an even and complete lap line. The plug should be intermittently lifted
and turned 90 degrees while lapping to keep the plug and seat ring concentric.
4. Clean the valve seat (key 2) and plug (key 4) thoroughly when the lapping is complete, removing all traces of
lapping compound.
Replacing Packing
Refer to the standard and optional packing constructions (figures 3 and 4) to determine the packing that has been
preinstalled in your valve.
1. Disassemble the valve as directed earlier. Remove the locknuts (key 27) and indicator disk (key 58), and turn the
plug stem (key 5) out through the packing box. Remove the packing box and packing. Push out the old packing by
working from the underside of the bonnet (key 8).
2. For Standard Spring Loaded PTFE V-Ring Packing (figure 3): Carefully insert each piece in exact order shown in
figure 3. Tighten the follower (key 10) until it shoulders on the bonnet (key 8). This will compress the packing spring
(key 6) to enable constant stem sealing throughout packing life.
3. For Optional Molded Graphite Ribbon Packing (figure 4): Carefully insert each piece in exact order shown in figure 4.
Hand tighten packing follower
(key 10). Use a wrench to increase tightness by turning the nut an additional 60 degrees.
Actuator and Valve Body Reassembly
Insert a new valve body gasket (key 49) and install bonnet assembly (key 8). Place the actuator yoke over stem (key 5).
While tilting actuator back, drop yoke drive nut (key 9) over stem (key 5). Run lock nuts (key 27), and travel indicator
(key 58) down as far as possible and counter tighten locknuts (key 27) to lock.

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Carefully position actuator over stem (key 5), lift plug stem and turn plug stem (key 5) into actuator stem as far as it
will go before adjusting bench range. See the following instruction manual (Baumann Actuator Instructions,
D103352X012).
CAUTION
When assembling or disassembling the valve, do not turn the valve stem while the plug is in contact with the valve seat.
This can damage the seating surface very quickly.
Figure 2. Baumann 24000 Valve Body Assembly with Standard Bonnet and Standard PTFE Spring Loaded Packing
E1259
WARNING
To avoid personal injury or equipment damage due to possible sudden shifting or falling of the valve assembly, do not lift
the valve by the handwheel.
Parts Ordering
When corresponding with your Emerson sales office or Local Business Partner about this equipment, always mention
the valve serial number. When ordering replacement parts, also specify the key number, part name, and desired
material using the following parts tables.

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WARNING
Use only genuine Fisher™replacement parts. Components that are not supplied by Emerson Automation Solutions should
not, under any circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the
performance of the valve, and could cause personal injury and property damage.
Table 1. Baumann 24000 Common Parts
KEY NO. QTY DESCRIPTION DN 15 (NPS 1/2) DN 20 (NPS 3/4) DN 25 (NPS 1) DN 40 (NPS 1-1/2) DN 50 (NPS 2)
1 1 Valve Body 24000-800 24000-801 24000-802 24000-803 24000-804
6* 1 V-Ring Packing Set (Std) 24494T001 (See figures 3 and 4 for additional packing options)
8 1 Bonnet, Standard 24000-805-1 24000-805-1 24000-806-1 24000-807-1 24000-808-1
9 1 Drive Nut (Yoke) 011757-003-153
10 1 Packing Follower 24490-1
27 2 Locknuts 971514-002-250
49* 1 Valve Body Gasket 009191-702-426 009191-702-426 009191-674-426 009191-704-426 009191-705-426
58 1 Travel Indicator 24299
Table 2. Plug and Seat Ring for NPS 1/2, 3/4, and 1 Valves
KEY
NO. DESCRIPTION PLUG TYPE PLUG NO.
ORIFICE
DIAMETER
mm (Inch)
CvKv
VALVE SIZE
DN 15 (NPS 1/2) DN 20 (NPS 3/4) DN 25 (NPS 1)
4* Plug / Stem
Metal Seat,
Micro Trim
(Linear)
102 6.3 (0.25) 0.2(1) 0.17(1) GE46388X012 GE46388X092
PTFE Seat
(Equal %) 577
9.5 (0.375)
1.0 0.86 24893-101-577
1.5 1.29 24796-101-577
2.5 2.15 24609-101-577
20.6 (0.8125)
4 3.44 24010-2-101-577
6 5.16 24010-101-577 --- ---
7.5 6.45 --- 24010-101-577 ---
8.5 7.31 --- --- 24010-101-577
26.9 (1.0625) 13 11.18 --- --- 24011-101-577
Metal Seat
(Equal %)
548
(S41600)
6.3 (0.25)
0.2(1) 0.17(1) GE46393X092 GE46393X052
0.5(1) 0.43(1) GE46394X092 GE46394X052
1.0 0.86 GE46392X092 GE46392X052
9.5 (0.375) 1.5 1.29 24634-6-101-548
2.5 2.15 24171-12-101-548
20.6 (0.8125)
4 3.4 24185-6-101-548
6 5.16 24061-5-101-548 --- ---
8 6.88 --- 24061-5-101-548 ---
9 7.74 --- --- 24061-5-101-548
26.9 (1.0625) 13 11.18 --- --- 24062-1-101-548
‐continued‐
*Recommended spare parts

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Table 2. Plug and Seat Ring for NPS 1/2, 3/4, and 1 Valves (continued)
KEY
NO. DESCRIPTION PLUG TYPE PLUG NO.
ORIFICE
DIAMETER
mm (Inch)
CvKv
VALVE SIZE
DN 15 (NPS 1/2) DN 20 (NPS 3/4) DN 25 (NPS 1)
4* Plug / Stem
Metal Seat
(Equal %) 588
6.3 (0.25)
0.2(1) 0.17(1) GE46390X052 GE46390X092
0.5(1) 0.43(1) GE46391X052 GE46391X092
1.0 0.86 GE46389X052 GE46389X092
9.5 (0.375) 1.5 1.29 24634-101-588
2.5 2.15 24171-101-588
20.6 (0.8125)
4 3.4 24185-101-588
6 5.16 24061-101-588 --- ---
8 6.88 --- 24061-101-588 ---
9 7.74 --- --- 24061-101-588
26.9 (1.0625) 13 11.18 --- --- 24062-101-588
PTFE Seat
(Linear) 677 9.5 (0.375)
0.1 0.086 24660-101-677
0.2 0.172 24625-101-677
0.5 0.43 24617-101-677
1.0 0.86 24631-101-677
2.5 2.15 24656-101-677
20.6 (0.8125) 5 4.3 24010-1-101-677
Metal Seat
(Linear)
648
(S41600)
6.3 (0.25) 0.5 0.43 GE46398X052 GE46398X092
1.0 0.86 GE46397X052 GE46397X092
9.5 (0.375) 1.5 1.29 24669-1-101-648
2.5 2.15 24671-2-101-648
20.6 (0.8125)
4 3.4 24757-5-101-648
6 5.16 24717-3-101-648 --- ---
8 6.88 --- 24717-3-101-648 ---
9 7.74 --- --- 24717-3-101-648
26.9 (1.0625) 13 11.18 --- --- 24791-1-101-648
Metal Seat
(Linear) 688
6.3 (0.25) 0.5 0.43 GE46396X052 GE46396X092
1.0 0.86 GE46395X062 GE46395X102
9.5 (0.375) 1.5 1.29 24669-101-688
2.5 2.15 24671-101-688
20.6 (0.8125)
4 3.4 24757-101-688
6 5.16 24717-101-688 --- ---
8 6.88 --- 24717-101-688 ---
9 7.74 --- --- 24717-101-688
26.9 (1.0625) 13 11.18 --- --- 24791-101-688
2* Seat Ring
6.3 mm (0.25 inch) Orifice Diameter, S31600 007635-001-163 24000-341
9.5 mm (0.375 inch) Orifice Diameter, S31600 007635-002-163 24000-342
20.6 mm (0.8125 inch) Orifice Diameter, S31600 007635-005-163 24000-343
26.9 mm (1.0625 inch) Orifice Diameter, S31600 --- --- 24000-344
6.3 mm (0.25 inch) Orifice Diameter, S41600 007635-002-416 24000-341-1
9.5 mm (0.375 inch) Orifice Diameter, S41600 007635-003-416 24000-342-1
20.6 mm (0.8125 inch) Orifice Diameter, S41600 007635-005-416 24000-343-1
26.9 mm (1.0625 inch) Orifice Diameter, S41600 --- --- 24000-344-1
1. A matching seat ring (key 2) must be furnished with replacement plug orders for Micro Trim plug number 102 and plug number 548 and 588, Cv's 0.2 and 0.5.
*Recommended spare parts

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Table 3. Plug and Seat Ring for NPS 1-1/2 and 2 Valves
KEY
NO. DESCRIPTION PLUG TYPE PLUG NO.
ORIFICE DIAMETER
mm (Inch) CvKv
VALVE SIZE
DN 40 (NPS 1-1/2) DN 50 (NPS 2)
4* Plug/Stem
PTFE Seat (Equal %) 577
31.8 (1.25) 20 17.2 24411-102-577 ---
38.1 (1.50)
10 8.6 24884-102-577
17 14.62 24774-102-577
28 24.08 24254-102-577
50.8 (2.0) 30 25.8 --- 24882-102-577
PTFE Seat (Linear) 677
38.1 (1.50) 10 8.6 24799-102-677
17 14.62 24798-102-677
50.8 (2.0) 30 25.8 --- 24891-102-677
50 43 --- 24070-102-677
Metal Seat (Equal %) 548
(S41600)
31.8 (1.25) 10 8.6 24421-2-102-548 ---
20 17.2 24401-2-102-548 ---
38.1 (1.50)
10 8.6 24635-2-102-548
17 14.62 24710-2-102-548
28 24.08 24038-2-102-548
50.8 (2.0) 30 25.8 --- 24905-3-102-548
50 43 --- 24039-1-102-548
Metal Seat (Equal %) 588
31.8 (1.25) 10 8.6 24421-102-588 ---
20 17.2 24401-102-588 ---
38.1 (1.50)
10 8.6 24635-102-588
17 14.62 24710-102-588
28 24.08 24038-102-588
50.8 (2.0) 30 25.8 --- 24905-102-588
50 43 --- 24039-102-588
Metal Seat (Linear) 648
(S41600)
31.8 (1.25) 20 17.2 24424-1-102-648 ---
38.1 (1.50)
10 8.6 24761-2-102-648
17 14.62 24899-2-102-648
28 24.08 24760-1-102-648
50.8 (2.0) 30 25.8 --- 24887-1-102-648
50 43 --- 24762-1-102-648
Metal Seat (Linear) 688
31.8 (1.25) 20 17.2 24424-102-688 ---
38.1 (1.50)
10 8.6 24761-102-688
17 14.62 24899-102-688
28 24.08 24760-102-688
50.8 (2.0) 30 25.8 --- 24887-102-688
50 43 --- 24762-102-688
2* Seat Ring
38.1 mm (1.25 inch) Orifice Diameter, S31600 24000-542 ---
38.1 mm (1.50 inch) Orifice Diameter, S31600 24000-541 24000-642
50.8 mm (2.0 inch) Orifice Diameter, S31600 --- 24000-641
38.1 mm (1.25 inch) Orifice Diameter, S41600 24000-542-1 ---
38.1 mm (1.50 inch) Orifice Diameter, S41600 24000-541-1 24000-642-1
50.8 mm (2.0 inch) Orifice Diameter, S41600 --- 24000-641-1
*Recommended spare parts

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Figure 3. Spring Loaded PTFE V-Ring Packing Kit, P/N 24494T001
E1240
Table 4. Spring Loaded PTFE V-Ring Packing Kit, P/N 24494T001
KEY NO. DESCRIPTION MATERIAL
6 Spring ASTM A313 S30200
14 Packing Set PTFE/ carbon filled PTFE
16 Washer ASTM A240 S31600
20 Spacer J-2000 (filled (Polytetrafluoroethylene)
Figure 4. Molded Graphite (Flexible Graphite) Packing Kit, P/N 24492T001
E1241
Table 5. Molded Graphite (Flexible Graphite) Packing Kit, P/N 24492T001
KEY NO. DESCRIPTION MATERIAL
13 Bushing, qty 2 Carbon-Graphite
14A Packing Rings, qty 3 Graphite
14B Packing Ring Graphite