Brochure

F-27855-10128
2½”…6” Flanged Globe Valves with Pneumatic Actuators
Actuator
MK- 6 811 MK- 8811 MK-8911
Effective Area (stroke)
50 Sq. In.
(1 " Stroke)
100 Sq. In.
(1 " Stroke)
100 Sq. In.
(2" Stroke)
Positive Positioner
AK-42309-500
Factory Assembly with Positive Positioner
Yes Yes Yes
Actuator Code (xxx)
602
f
802
e
812
e
Spring Range (psig)
5…10 5…10 5…10
Actuator Close-Off Pressure Rating (psi)
ab
Supply Air Pressure (psig) 15/20 15 20 15/20 15 20 15/20 15 20
Stem Position
c
SU SD SD SU SD SD SU SD SD
Valve
Assembly
Valve
Body
P
Code
Size
in.
VK4-9313-xx2-5-P
d
VB-9313-0-5-P
-12 2½ 30 40 91 60 91
125
-
-13 3 20 27 62 40 62
-14 4 10 14 33 25 33 73
VK4-9313-812-5-P
d
VB-9313-0-5-P
-15 5
-
15
20 45
-16 6 10 13
30
a - Close-off ratings for mixing valves: (SU = “A”, SD = “B” port). “A” port (SU) ratings equal pressure at port “A” minus
pressure at port “B”. “B” port (SD) ratings equal pressure at port “B” minus pressure at port “A”. Close-off ratings in
the table are true only when the indicated supply air pressure is applied to the actuator. A change in air pressure at the
actuator alters the actual close-off pressure.
b - Close-off pressure ratings describe only the differential pressure which the actuator can close-off to standards with
adequate seating force. Consult valve body specifications for other limitations.
c - SU - Stem Up; SD - Stem Down. For piping information refer to the separately available Wiring, Dimensions and
Reference document F-28125 from the Exchange Download Center for flow pattern.
d - Factory valve assemblies are available only with positive positioner.
e - Includes AV-496 linkage.
f - Includes AV-495 linkage.
Optional Input Signal Interface to Pneumatic Actuator
Input Signal Type Interface Module Required
Two-Position, SPST (Electric) AL-1xx
Two-Position, SPDT Snap Acting (Electric) AL-1xx
Select Actuator or Actuator Code (xxx) having sufficient close-off for the application. If selecting compo-
nent parts, select Positive Positioner, if required. NOTE: For higher close-offs, use VB-8303 balanced valves
with common bottom port.
VB-9313 3-Way Valves with
Pneumatic SR Actuators
MK-88xx Series
MK-89xx Series
VK4-9313 with a MK-6811
Pneumatic Actuator and AK-
42309-500 Positive Positioner
6. VB-8/9000 Valve and
Actuator Assemblies
6. VB-8/9000 Valve and
Actuator Assemblies