TAC’s new butterfly valve line offers a wide range of two- and three-way sizes, along with low pressure pneumatic spring return, electric non-spring return, and spring return actuator models that operate with on/off, floating, or proportional control signals.
FEATURES
• 2 to 18” two-way assemblies and 2 to 16” three-way assemblies
• Chilled/hot water/glycol applications
• EPDM resilient seats with tongue and grove design and build in O-ring seal
BUILD A PART NUMBER Table 1
X
Table 1 A B F K S
Table 2 F
U
Table 3 4
S
Table 4 6
Table 5 2 3
Table 6 0 1 2
Table 7 Pattern L
0 1 2 7 8 9
2-Way
3-Wayb 3-Wayb 3-Wayb 3-Wayb Special
–
A B B A
–
a. The letter indicates the main valve and where the actuator is mounted. b. Refer to the flow diagram to the right. c. The view represented is looking down on the stem side of the valve.
Table 2 X
Table 3 X
Table 4 X
Control Signal Type 2-Position Body only
Floating (SPDT, center off) Pneumatic
Proprotional (Vdc, mAdc) Disc
Full 175 psi close to 12” Undercut 50 psi close Accessory
Positive positioner Auxilary switch Type
Butterfly Style
2-Way 3-Way
Power Loss Action NSR NO NC
Flow Pattern
Main Valveª Main Valve Position
–
NC NC NO NO –
Linked Valve –
C C C C –
Neck Flow
Leakage
Materials Body
Stem
Disc Seat
1058
Table 5 Table 6 X
X Table 8
Table 9 L
Table 10 11 12 13 14 15 16 17 18 19 21 22
Specifications Service
Port Code 2”
2.5” 3” 4” 5” 6” 8”
10” 12” 16” 18”
Table 7 X
Table 8 X
Table 9 X
Actuator Code Please Call Body Style
Nylon disc and lug body
Table 10 XX
Hot and chilled water, up to 60% glycol. See EN-205 Water System Guidelines, F-26080.
Fluid Temperature limits –40 to 250 °F ( –40 to 120 °C). Sizes
2 to 18” two-way models. 2 to 16 “ three-way models. 2” extended neck. Bi-directional.
ANSI Class VI seat leakage (bubble tight).
Polyester coated cast Iron ASTM A126 Class B lug. Mates with ANSI Class 125/150 flanges.
2 to 8”: 416 stainless steel double D stem. 10 “ and larger: 316 stainless steel double D stem. Ductile iron nylon 11 coated disc
EPDM tongue and groove seat and molded O-ring flange seal.
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