Data Sheet

Globe Valve Selection Guide
Product Flier
PF51.1:010
July 2008
2
Low-Flow Valves
BAUMANN 26000 SERIES
BAUMANN 24000SB SERIES
BAUMANN 51000 SERIES
E0987 E0985 E0988
Figure 2. Low-Flow Valves
BAUMANN 26000 SERIES BAUMANN 24000SB SERIES BAUMANN 51000 SERIES
Applications
Suited for demanding pH control of acid or
caustic solutions in paper mills, chemical, and
life science facilities
Throttling control of high-pressure, low flow
rates in industrial control applications.
Throttling control of high-pressure low flow
rates in applications often found in laboratories
and pilot plants.
Style
Single-seated, stem-guided globe valve
PTFE lined
Unbalanced
Single-seated, stem-guided globe valve
Unbalanced
Screwed-in seat ring
Metal or soft seats
Single-seated, stem-guided globe valve
Unbalanced
Metal or soft seat
Sizes
DN 25 NPS 1
DN 15, 20, 25
NPS 1/2, 3/4, 1
NPS 1/4 and 1/2
Ratings
10.3 Bar CWP (150 psig CWP) 207 Bar CWP (3000 psig CWP) 207 Bar CWP (3000 psig CWP)
End Connections
Wafer (flangeless design) installs between PN
10 PN through 25 or CL150, CL300 line flanges
NPT internal (standard), buttweld. ASME or EN
Flanged
Threaded G (Metric) or NPT internal
Valve Body Materials
S31600/S31603 Annealed (ASTM A479) with
PTFE core
S31600/S31603 Dual Certified (ASTM A479
Barstock)
Alloys available
CF8M
N10276 Nickel Alloy
Valve Plug and Seat Ring (Trim) Materials
R05200 Tantalum (ASTM B365 cold worked) or
N10276 Nickel Alloy (ASTM B574 , 35 HRC
Max) plug
PTFE seating material
S31600/S21800; alloys available
Soft seat is S31600 with PTFE insert
S21800 Annealed (ASTM A479)
N10276
PTFE soft seat
Flow Characteristics and Maximum Flow Coefficients
Modified equal percentage
Maximum C
v
from 0.001 to 4.2
Equal Percentage or Linear
Maximum Cv from 0.0005 to 6.8
Modified equal percentage
Maximum C
v
from 0.00013 to 2.5
Shutoff Class (IEC 60534-4 and ANSI/FCI 70-2)
Class IV (Cv 2.5 and 4.2)
Class VI (Cv 0.001 through 1.0)
Class IV (standard with metal seats)
Class VI (with optional soft seats)
Class VI (standard with soft seat)
Class IV (available)
Available Actuators (refer to pages 11 and 12)
Baumann 32 sliding-stem
spring-and-diaphragm actuator
Electric actuators available
Baumann 32, 54, or 70 sliding-stem
spring-and-diaphragm actuators
Electric actuators available
Baumann 16 pneumatic actuator
Electric actuators available