Brochure

3-Way Mixing and Diverting Globe Valves, Screwed End (15 to 80 mm) with
Pneumatic Actuators
148
© Copyright 2006 TAC. All Rights Reserved. F-27414-1
TABLE 2A. 15 to 80 mm Valves, select
Actuator or having sufficient close-off for the
application. Select and
Positive Positioner if required.
Effective Area
71 cm
2
323 cm
2
Valve Linkage
AV-430 AV-495
Positive Positioner
AK-42309-500 AK-42309-500
Actuator
MK-6601 MK-6611 MK-6621 MK-6801 MK-6811 MK-6821
Spring Range (kPa)
21 to 55 34 to 69 55 to 90 21 to 55 34 to 69 55 to 90
ACTUATOR CLOSE-OFF PRESSURE RATING (kPa)
a b
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
the limitations.
Supply Air Pressure (kPa)
103/
138
103 138
103/
138
103 138
103/
138
103 138
103/
138
103 138
103/
138
103 138
103/
138
103 138
Stem Position
c
c
SU — stem up; SD — stem down. Refer to Table 5 for flow pattern, port designations, and normal position.
SU SD SD SU SD SD SU SD SD SU SD SD SU SD SD SU SD SD
Valve Body P Code
Size
mm (R
p
)
VB-7315-0-4-P
-2, -4 15 (1/2) ——————————————————
-6 20 (3/4) ——————————————————
-8 25 (1) ——————————————————
-9 32 (1-1/4) 1720 ——— ——————
-10 40 (1-1/2) 270 1170 1720 550 750 1580 1170 200 1100 — — — — — — — — —
-11 50 (2) 130 620 1100 340 410 820 620 100 620 — — — — — — — — —
VB-9315-0-4-P
-12 65 (2-1/2) — — — — — — — — — 60 410 750 200 270 620 410 60 410
-13 80 (3) — — — — — — — — — 34 280 510 130 180 420 275 34 280
TABLE 2B. 65 and 80 mm Valves, select
Actuator having sufficient close-off for the
application. Select and
Positive Positioner if required.
Effective Area
645 cm
2
Valve Linkage
AV-496
Positive Positioner
AK-42309-500
Actuator Code (XXX) ⎯⎯⎯
Actuator
MK-8801 MK-8811 MK-8821
Spring Range (kPa)
21 to 55 34 to 69 55 to 90
CLOSE-OFF PRESSURE RATING (kPa)
a b
a
Close-off ratings for mixing or sequencing 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
the limitations.
Supply Air Pressure (kPa)
103/138 103 138 103/138 103 138 103/138 103 138
Stem Position
c
c
SU — stem up; SD — stem down. Refer to Table 5 for flow pattern, port designations, and normal position.
SU SD SD SU SD SD SU SD SD
Valve Body
P
Code
Size
mm (R
p
)
VB-9315-0-4-P
-12 65 (2-1/2) 200 860
860
410 620
860
860 200 860
-13 80 (3) 130 620 275 420 620 130 620
Valve
Linkage
Valve
Linkage