Brochure

3-Way Mixing and Diverting Butterfly Valves, Flangeless (2 to 24 in.) with
Electric Gear Train and Pneumatic Actuators
108
© Copyright 2006 TAC. All Rights Reserved. F-27414-1
TABLE 1. Select Valve Assembly with correct Input
Signal (refer to Table 3, Table 3A, and Table 3B
also) less Actuator Code (XXX) including the
P Code (Size, Cv Rating, Port Code). (Refer to
Pages 172 to 179 for Valve Sizing.)
Application
Chilled or Hot Water
Flangeless Wafer
a
a
Two flangeless wafers with 125/150 lb ASA flanges mounted on 125 lb cast iron tee. Refer to dimensional drawings.
2 in. - 6 in. Lug
8 in. - 12 in. Wafer
Size 2 to 24 in. 2 to 12 in.
Actuator Normal Position Input Signal Valve Assemblies
MC-431
None SPDT VC-6664-113-2-P VC-6764-113-2-P
MK4-7121
Normal Position;
Specify When Ordered
Pneumatic VK-6664-221-2-P VK-6764-221-2-P
MK4-7121 and MK-7121
Pneumatic VK-6664-321-2-P VK-6764-321-2-P
MP-485
None
Electric
(Refer to Table 3B)
VP-6664-103-2-P VP-6764-103-2-P
MP-9750
None VP-6665-906-2-P
VP-6765-906-2-P
M
P-9810
None VP-6665-908-2-P VP-6765-908-2-P
MP-4851
None (Refer to Table 3B)
VP-6664-442-2-P
VP-6665-442-2-P
VP-6764-442-2-P
VP-6765-442-2-P
NOTE: These charts are color
coded as shown below to
assist valve selection. Note it
is possible to select a valve
assembly.
ORDERING EXAMPLES:
1. Valve Assembly:
VK-6764-221-2-12
 Valve Assembly less Actuator
Code (XXX) and less P Code
(Size, Cv Rating, Port Code)
 P Code (Size, Cv Rating, Port
Code)
 Actuator Code (XXX) for
Valve Assemblies
Flow Type Mixing or Diverting; Specify When Ordered
Material
Body
Iron Iron
Seat
1.5 to 3% Leakage
EPDM (EPT)
Rubber Liner
Stem
Stainless Steel Stainless Steel
Packing
Graphited Teflon “O” Ring
Disc
Iron Aluminum Bronze
WATER
Pressure psig (kPa)
Static
125 (862) 125 (862)
Recommended Differential
Refer to Table 2
Fluid Temp. °F (°C)
Minimum
-10 (-23) -10 (-23)
Maximum
350 (177) 250 (121)
TO SELECT A PORT CODE (P).
P Code
Valve Size
b
(in.)
b
CAUTION: Fittings and/or pipe schedules must meet or exceed working static pressure requirements.
Cv
c
c
Based on 60° opening for optimum control characteristics.
-11 2 54 47
-12
2-1/2
95 80
-13
3
155 136
-14 4 275 249
-15 5 435 404
-16
6
630 597
-17 8 1115 1200
-18 10 1740 1890
-19
12
2515 2860
-20 14 3013 —
-21 16 4000 —
-22
18
5125 —
-23 20 6390 —
-24 24 9350 —
3-Way
Mixing
and
Divertin
g
Butterfly
Valves,
Flangele
ss (2 to
24 in.)
with
Electric
Gear
Train
and
Pneumat
ic
Actuator
s