Baumannt 51000 High-Pressure,
Low-Flow Control Valve
The Baumann 51000 control valve is optimally
designed for demanding low-flow, high-pressure
control applications often found in laboratories and
pilot plants. NPS 1/4 or 1/2 valve assemblies are
standard as either investment cast stainless steel or
N10276 nickel alloy. Constructions with other high
nickel alloys are available.
With a small footprint, less than 10 inches tall, and
multiple trim capacity reductions available to meet
changing process requirements, the 51000 is a perfect
fit where space is at a premium and flexibility is a must.
The valve is suited for demanding control of gases,
chemical/dye injection and acid/caustic solutions in
paper production, textiles, specialty chemicals, and
many other industries.
W9733
Baumann 51000 NPS 1/2 Control Valve
with TA6000 Electropneumatic Transducer (I/P)
Product Bulletin
52.1:51LF
October 2014
Features
Compact Size.
Suitable for sticky fluids and corrosive atmospheres.
Quick Trim Change Out - Matched trims not
required.
Investment cast stainless steel body in NPS 1/4 and
1/2, or barstock N10276 Nickel Alloy. Other alloys
available.
Class VI shutoff with soft seat available.
Up to 207 barg (3000 psig) at 37_C(100_F).
Rugged bolted bonnet design.
Wide flow capacity range. Maximum rated Cv
ranges from 0.00013 to 2.5 (0.00011 to 2.16 Kv).
Corrosion-resistant actuator.
Available without positioner for fail-open or
fail-close applications.
W9734
51000 NPS 1/4 Control Valve with Baumann 16 Actuator,
and Fisherr 3660 Pneumatic Positioner
W9066
51000 NPS 1/2 Control Valve with Baumann 16 Actuator,
and FIELDVUEt DVC2000 Digital Valve Controller
www.Fisher.com
Product Bulletin
52.1:51LF
October 2014
51000 Valve
D103339X012
Figure 1. NPS 1/4 and 1/2 (6.35 and 12.7 mm) Soft
SeatCageDesignforCv=0.00013to0.45ClassVI
Shutoff (N10276 Nickel Alloy Construction Available)
FLOW
DOWN
E1230
Soft Seat
Figure 3. NPS 1/2 (12.7 mm) Integral (Metal) Seating
for Cv = 1.0, 1.5, and 2.5 Class IV Shutoff
58
27
31
28
32
33
FLOW
UP
E1232
26
Metal Seat
Figure 2. Soft Seat Cage Assembly
The PTFE ring (key 3B) surrounds the valve plug (key 4)
to help eliminate clearance flow typical of lapped-in
metal-to-metal close clearance micro trims. Flow is
directed over the valve plugandforcedthrougha
single V-notch path as the plug moves above the PTFE
ring, providing precise and predictable control over its
entire travel range. When the V-notch moves below
the PTFE ring, Class VI primary shutoff is achieved.
A live-loaded metal seat collar (key 3C) fully retains the
PTFE ring (key 3B). The valve plug (key 4) seats against
the metal collar providing Class IV secondary shutoff.
V-NOTCH
GROOVE
E1231
In addition, the fluid process pressure combines with
the actuator seating force to form a hydraulic seal
within the fully retained PTFE ring (key 3B). Therefore,
thehighertheprocesspressurethetightertheshutoff.
Table 1. Baumann 51000 Soft Seat Cage Assembly
Key NumberPartsMaterial
3ACageASTM A276S31600 ConditionA or ASTM B574 N10276,35 HRC Max
3BRingPTFE (Polytetrafluoroethylene)
3CCollarASTM A276S31600 ConditionA or ASTM B574 N10276,35 HRC Max
3DRetainer
3ESpring
2
51000 Valve
D103339X012
Product Bulletin
52.1:51LF
October 2014
Figure 4. V-Ring Packing Kit
E1233
Table 2. Baumann 51000 V-Ring Packing Kit 51607
Key NumberQuantityDescription
91Packing Set
292Flat Washer
34Disc Spring
Table 3. Materials of Construction
Key NumberPartsMaterial
1Valve Body, NPS 1/4 and NPS 1/2ASTM A351CF8M or ASTM B575 N10276, 35 HRC Max
2Seat Cage GasketReinforced Graphite
Soft Seat Cage Assy, (Cv's 0.00013 to 0.45),
3
4Plug/Stem (Cv's 0.00013 - 0.45); (Kv's0.00011 to 0.39)ASTM A479 S21800 Annealed orASTM B574 N10276, 35 HRC Max
5Bonnet GasketFlexible Graphite and Polymer Composite
6BonnetASTM A351CF8M or ASTM B574 N10276, 35 HRC Max
Table 6. Valve Body S/A Pressure-Temperature Ratings
WORKING PRESSURE (barg)WORKING PRESSURE (psig)
Temperature (_C)ASTM A351 CF8M
-195 to37.8207207-320 to 10030003000
93.317820720025803000
14916120730023303000
17615420735022353000
ASTM B575 N10276,
35 HRC Max
Temperature (_F)ASTM A351 CF8M
X
ASTM B575 N10276,
35 HRC Max
K
T
C
4
51000 Valve
D103339X012
Product Bulletin
52.1:51LF
October 2014
Baumann 16 Actuator
Figure 5. Baumann 16 Actuator Sectional
The Baumann 16 actuator is single acting, pneumatic
with spring-return action. It is a compact, multi-spring
actuator with low operating friction. It can be reversed
in the field (air-to-open or air-to-close) without special
tools or additional parts.
Multiple springs determine the bench set; there is no
need for a bench set adjustment.
1/4 NPT
OPENING
It can be mounted with the TA6000 transducer, Fisher
3660 pneumatic or 3661 electropneumatic valve
E1234
positioners, or FIELDVUE digital valve controllers.
Neither Emerson, Emerson Process Management,nor any of their affiliated entitiesassumes responsibility for the selection, use or maintenance
of anyproduct. Responsibility for proper selection, use, and maintenance ofany product remains solely with the purchaser and enduser.
Baumann, Fisher, and FIELDVUE are marks owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co.
Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property
of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they arenot
to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
governed by our terms and conditions, which are available upon request.We reservethe rightto modifyor improvethe designs or specifications ofsuch
products at any time without notice.
Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
E 2009, 2014 Fisher ControlsInternational LLC. All rights reserved.
12
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