Emerson Fisher Baumann Little Scotty 24000C User manual

www.Fisher.com
Baumann™24000C Carbon Steel
Little Scotty™Control Valve
Contents
Introduction 1...................................
Scope of Manual 1.............................
Safety Precautions 2...........................
Maintenance 3.................................
Installation 3..................................
Air Piping 4...................................
Disassembly 4................................
Lapping the Metal Seat 6.......................
Replacing Packing 6...........................
Actuator and Valve Body Reassembly 6...........
Parts Ordering 8................................
Dimensions and Weights 14......................
Figure 1. 24000C Control Valve with Baumann 32
Actuator and Fisher™3661 I/P Positioner
W9744
Introduction
Baumann 24000C carbon steel Little Scotty industrial control valves (figure 1) are intended for general utility service in
pressure, flow, and temperature control applications.
Scope of Manual
This instruction manual includes installation, maintenance, and parts information for the Baumann 24000C control
valve.
Do not install, operate, or maintain Baumann 24000C 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 before proceeding.
Instruction Manual
D103356X012
24000C Valve
February 2019

Instruction Manual
D103356X012
24000C Valve
February 2019
2
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 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.
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.

Instruction Manual
D103356X012
24000C Valve
February 2019
3
Maintenance
WARNING
Avoid personal injury and property damage from sudden release of process pressure or bursting of parts. Before performing
any maintenance operations:
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
Refer to key numbers in figure 3 unless otherwise specified.
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 would 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.

Instruction Manual
D103356X012
24000C Valve
February 2019
4
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 opening 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 length, 9.5 mm (3/8
inch) tubing is preferred. Air pressure should not exceed 2.5 barg (35 psig).
CAUTION
D When assembling or disassembling the valve, do not turn the valve stem while the plug is touching the valve seat. This
will damage the valve's seating surfaces.
D 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). This will allow you to turn the stem by turning the locknuts (key 27) with a wrench.
D When placing valve in a vise, clamp the flat end faces of the valve. Do not clamp the rounded sides of the valve. This will
distort the shape of the casting, and will ruin the valve.
Disassembly
1. Mount the valve in a vise by clamping flat end faces of the valve (figure 3). Caution must be taken not to damage
the serrated flange faces.
2. Remove the actuator, stem locknuts (key 27), travel indicator (key 58))and yoke drive nut (key 9).
3. Turn the bonnet (key 8) in a counter-clockwise direction from the valve body (key 1). Remove the O-ring (key 12)
and remove and discard the valve body gasket (key 49). A new gasket should be installed each time the valve is
disassembled.
4. Pull the plug and stem assembly (keys 4 and 5) out through the bottom of the bonnet. Rotate the assembly to
prevent damage to the packing. Wipe the parts with a clean soft cloth and examine for signs of wear.
CAUTION
Handle the parts carefully to avoid damaging the seating and guiding surfaces.
5. Use a seat ring tool made according to the dimensions in figure 2 and table 1 to remove the seat ring (key 2) as
follows:
a. Insert the tool into the valve body. Be certain the tool lugs are engaged in the corresponding recesses in the seat
ring.
b. Use a 1/2 inch drive breaker bar or impact wrench having sufficient torque capability to remove the seat ring.
Seat ring installation torque is provided in table 2 for reference. Connect the breaker bar or impact wrench, and if
needed, a impact-rated extension bar, to the square drive of the seat ring tool.
c. Remove the seat ring (key 2) from the valve body. Make sure the seat ring tool is held at a right angle to the seat
ring during removal to prevent the tool from disengaging from the lugs of the seat ring.
d. Inspect parts for wear or damage that would prevent proper operation of the valve body.

Instruction Manual
D103356X012
24000C Valve
February 2019
5
Figure 2. Seat Ring Tool Dimensions
MAX ALLOWABLE CENTER DRILL  0.532
NPS 1 1/2 NPS 2
NPS 1/2, 3/4, 1
C
D
F
B
E
.502−.508
SQUARE DRIVE
AA
A
.502−.508
SQUARE DRIVE
D
B
CC
C
D
B
1
11
Table 1. Seat Ring Tool Dimensions (see figure 2)
Part Number DN NPS A B C D E F
Inch
GE96219X012 15
20
1/2
3/4 1.32 2.0 0.38 0.26 0.29 0.19
GE96219X022 25 1 1.52 2.3 0.40 0.25 0.35 0.20
GE96219X032 40 1-1/2 2.06 0.9 0.55 0.30 - - - - - -
GE96219X042 50 2 2.74 1.0 0.55 0.44 - - - - - -

Instruction Manual
D103356X012
24000C Valve
February 2019
6
Table 2. Seat Ring Assembly and Torque Tool
24000C
VALVE SIZE
NPS (Inch)
(DN)
1/2
(15)
3/4
(20)
1
(25)
1-1/2
(40)
2
(50)
Port Diameter
0.25(1) GE96219X012 GE96219X012 GE96219X022 - - - - - -
0.375(1) GE96219X012 GE96219X012 GE96219X022 - - - - - -
0.8125(2) GE96219X012 GE96219X012 GE96219X022 - - - - - -
1.0625(2) - - - - - - GE96219X022 - - - - - -
1.25 - - - - - - - - - GE96219X032 - - -
1.5 - - - - - - - - - GE96219X032 GE96219X042
2- - - - - - - - - - - - GE96219X042
Installation Torque (lbwft) 60 60 80 100 130
1. Male end used for trim 151.177, and port diameters .25 and .375
2. Female end used for port diameters .8125 and 1.0625
Lapping the Metal 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. Place 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 and plug (key 4) thoroughly when the lapping is complete, removing all traces of lapping
compound.
Replacing Packing
Refer to the standard packing construction and the optional packing shown in figures 3, 4, and 5 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 and stem (keys 4 and 5) out through the packing box. Remove the packing follower (key 10). Push out the old
packing (key 14) by working from the underside of the bonnet (key 8).
2. Standard spring loaded PTFE V-ring packing (figures 3 and 4): Insert each piece in exact order shown in figures 3 and
4. Hand tighten the packing 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 the packing life.
3. Molded graphite (flexible graphite) packing (figure 5): Insert each piece in exact order shown in the figure 5. Hand
tighten the packing follower (key 10). Use a wrench to increase tightness by turning the nut an additional 60
degrees.
Actuator and Valve Body Reassembly
1. Before installing seat ring in valve body, thoroughly clean the threads in the valve body port. Apply suitable
lubricate to the threads and tighten to torque specified in table 2. Remove all excess lubricant after tightening.

Instruction Manual
D103356X012
24000C Valve
February 2019
7
2. Insert a new valve body gasket (key 49) and install the bonnet assembly (key 8) with the plug and stem assembly in
the valve. The O-ring (key 12) must be reinstalled by gently stretching over the bonnet and snapping into the gap
between the top of the valve body (key 1) and the bonnet (key 8). This O-ring acts as a dust/moisture seat.
3. Place the actuator yoke over the stem (key 5). While tilting the actuator back, drop the yoke drive nut (key 9) over
the stem (key 5). Run the locknuts (key 27), and travel indicator (key 58) down as far as possible and counter
tighten the locknuts (key 27) to lock.
See the Baumann Pneumatic Actuator Instruction Manual (D103352X012) for reassembly and bench range
adjustment.
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.

Instruction Manual
D103356X012
24000C Valve
February 2019
8
Parts Ordering
When corresponding with your Emerson sales office 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.
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.

Instruction Manual
D103356X012
24000C Valve
February 2019
9
Figure 3. Baumann 24000C Valve Body Assembly with Standard PTFE Spring-Loaded Packing
E1239
Table 3. Baumann 24000C Common Parts
KEY
NO. DESCRIPTION
VALVE SIZE
DN15
(NPS 1/2)
DN20
(NPS 3/4)
DN25
(NPS 1)
DN40
(NPS1-1/2)
DN50
(NPS 2)
1Valve Body, Carbon Steel, EN PN10-40 24000-111W 24000-211W 24000-311W 24000-511W 24000-611W
Valve Body, Carbon Steel, ASME CL150 RF 24000-113W 24000-213W 24000-313W 24000-513W 24000-613W
8 Bonnet 24000-121 24000-121 24000-321 24000-521 24000-621
8A Bonnet Bushing 24000-124
9Drive Nut (Yoke) 011757-003-153
10 Packing Follower 24490-1
12 O-Ring 24000-151 24000-151 24000-351 24000-551 24000-651
14*
Packing Kit, Spring Loaded PTFE V-Ring
(standard) 24494T001
Packing Kit, Molded Graphite (optional) 24492T001
27 Locknuts, qty 2 971514-002-250
49*
Valve Body Gasket, Copper (standard) 24000-131 24000-131 24000-331 24000-531 24000-631
Valve Body Gasket, S31600 reinforced
Graphite (optional) 24000-132 24000-132 24000-332 24000-532 24000-632
58 Travel Indicator 24299
*Recommended spare parts

Instruction Manual
D103356X012
24000C Valve
February 2019
10
Table 4. Plug for NPS 1/2, 3/4, and 1 Valves - Metal Seat
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
Assy
Metal Seat,
Micro Trim
(Linear)
102 6.3 (0.25) 0.2(1) 0.17(1
)GE46388X012 GE46388X092
Metal Seat
(Equal %)
548
(S41600)
6.3 (0.25)
0.2A 0.17A GE46393X092 GE46393X052
0.5(1) 0.43(1
)GE46394X092 GE46394X052
1.0(1) 0.86(1
)GE46392X092 GE46392X052
9.5 (0.375)
1.5(1) 1.29(1
)24634-6-101-548
2.5(1) 2.15(1
)24171-12-101-548
20.6 (0.8125)
4 3.4 24185-6-101-548
7.7 6.6 24061-5-101-548 --- ---
10.1 8.7 --- 24061-5-101-548
26.9 (1.0625) 13.6 11.7 --- --- 24062-1-101-548
Metal Seat
(Equal %)
588
(S41600)
6.3 (0.25)
0.2 0.17 GE46390X052 GE46390X092
0.5 0.43 GE46391X052 GE46391X092
1.0 0.86 GE46389X052 GE46389X092
9.5 (0.375)
1.5(1) 1.29(1
)24634-101-588
2.5(1) 2.15(1
)24171-101-588
20.6 (0.8125)
4 3.4 24185-101-588
7.7 6.6 24061-101-588 --- ---
10.1 8.7 --- 24061-101-588
26.9 (1.0625) 13.6 11.7 --- --- 24062-101-588
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
1. A matching seat ring (table 5, key 2) must be furnished with replacement plug orders.
*Recommended spare parts