Data Sheet

A41 Valve
D500212X012
Product Bulletin
21.1:A41
January 2013
2
Specifications
Valve Sizes and End Connection Styles
NPS
J 2, J 3, J 4, J 6, J 8, J 10, and J 12 valve
sizes available in
J wafer or J single-flanged style
(NPS 2 only in wafer style)
Maximum Inlet Pressures
(1)
Carbon Steel and Stainless Steel Valve Bodies:
Consistent with CL150 and 300 pressure-temperature
ratings per ASME B16.34 unless limited by material
temperature capabilities. NPS 2 is also consistent with
CL600
Maximum Pressure Drops
(1)
Consistent with CL150 and 300 pressure/
temperature ratings per ASME B16.34 except for
PTFE, UHMWPE, and Phoenix III seals that are derated
at some higher pressure/temperatures values. (See
figure 3)
Shutoff Classifications
J PTFE, Reinforced PTFE, and UHMWPE Seal:
(4)
No
visible leakage for this bidirectional seal per MSS
SP-61. See figure 4
J NPS 2 Metal Seal: Bidirectional shutoff. 0.001% of
maximum valve capacity (1/10) of Class IV per
ANSI/FCI 70-2 and IEC 60534-4. Pressure Drop is 740
psigforwardand100psigreverse
J NOVEX Seal: For NPS 3 through 12. Unidirectional
shutoff is MSS SP-61 in the preferred flow direction.
Seefigure4
J Phoenix III Seal: For NPS 3 through 12. No visible
leakage for this bidirectional seal per MSS SP-61. See
figure 4. For optional Phoenix III Fire-Tested seal
(3)
,
consult your Emerson Process Management sales
office
Material Temperature Capabilities
(1)
PTFE and Reinforced PTFE Seals: -46 to 232_C(-50to
450_F)
UHMWPE Seal:
(4)
-18 to 93_C (0 to 200_F)
NPS 2 Metal Seal: -46 to 538_C(-50 to 1000_F)
NOVEX Seal: -46 to 538_C(-50to1000_F)
Phoenix III: -46 to 232_C (-50 to 450_F)
See table 3 for component temperature ranges
Construction Materials
Refer to table 3 for standard and optional material
selections
Flow Characteristic
Approximately linear
Flow Direction
Refer to figure 4
Flow Coefficients
See table 2, and Fisher Catalog 12
Noise Levels
See Catalog 12 for sound pressure level prediction
Disc Rotation
Clockwise to close (when viewing from the drive shaft
end) through 90 degrees of disc rotation
Available Actuators
J Pneumatic piston, J manual handwheel or
J handlever (handlevers are available for CL150 up to
anNPS8valve,andforCL300uptoanNPS6valve)
Actuator/Valve Action
With a pneumatic actuator, the valve action is
reversible. Refer to the information provided in the
Installation section and figure 4
Valve Classification
Face-to-face dimensions of NPS 3 through 12 in
CL150 or 300, and meets API 609 or MSS SP-68
standards for face -to-face dimensions of wafer style
and single-flange valves (see figure 6)
(continued)