Butterfly Valve
Assemblies
Make the most of your energy
2
AT A GLANCE
• 2 to 18” two-way assemblies and 2 to 16” three-
way assemblies
• Chilled/hot water/glycol applications
• EPDM resilient seats with tongue and groove
design and build in O-ring seal
• Stainless steel double D stem, requires no pins or
screws to connect the disc and stem
• Extended neck design for temperature isolation
and ease of insulation installation
• Nylon 11 coated ductile iron disc
• Wide choice of pneumatic and electric actuators
and control signals
• Cast iron lug bodies mate with ANSI class 125/150
flanges
• Bubble tight shut off
• Bidirectional flow
• Series S70 NEMA4 actuators available in 24 or
120 Vac
Schneider Electric’s 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.
All assemblies include industry leading butterfly valve
features, stainless steel double “D” shafts, nylon 11
coated ductile iron disc machined to provide bub-
ble tight shut off, minimum torque, and longer seat
life. The tongue and groove resilient seat design with
molded in O-ring eliminates the use of flange gaskets
and allows for ease of maintenance or replacement
of the resilient seat. These features provide years of
optimum performance and reliability.
Applications
Typical applications include data centers, cooling
towers, central system shutoff and bypass pip-
ing control, thermal storage, and chiller and boiler
control.
Valve Body Specifications
Service
Hot and chilled water, up to 60% glycol.
EN-205 Water System Guidelines,
See
Fluid Temperature Limits
–40 to 250 °F ( –40 to 120 °C).
Sizes
2 to 18” two-way models.
2 to 16” three-way models.
Neck
2” extended neck.
Flow
Bi-directional.
Leakage
Bubble tight shutoff
F-26080.
Applicable Documentation
For more technical information, refer to Butterfly
Valve Assemblies Selection Guide, F-27440
Materials
Body
Polyester coated cast Iron ASTM A126 Class B lug.
Mates with ANSI Class 125/150 flanges.
Stem
2 to 8”: 416 stainless steel double D stem.
10” and 12”: 316 stainless steel double D stem.
14” and up: 316 Stainless Steel round shaft woodruff
key slot.
Disc
Ductile iron nylon 11 coated disc
Seat
EPDM tongue and groove seat and molded O-ring
flange seal.
Butterfly Valve Numbering System
Rubber Lined
Part Numbering System – Rubber Lined
V x xx – 6 x xx – x x xx – x – xx
3
Control Signal Type
A = 2-Position
B = Body only
F = Floating (SPDT, center off)
K = Pneumatic
S = Proprotional (Vdc, mAdc)
Disc
F = Full 175 psi close to 12"
U = Undercut 50 psi close
Accessory
4 = Positive positioner
S = Auxilary switch
Leave the digit blank for no accessories
Pattern
0 = 2-Way – – –
1 = 3-Way
2 = 3-Way
7 = 3-Way
8 = 3-Way
9 = Special – – –
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 r
d. Spring r
Main
Valve
b
A NC C
b
B NC C
b
B NO C
b
A NO C
epresented is looking down on the stem side of the valve.
eturn models position on loss of power
Type
6 = Butterfly
Style
2 = 2-Way
3 = 3-Way
Power Loss
Action
0 = NSR
1 = NO
2 = NC
Flow Pattern
a
Main
Valve
Position
d
Linked
Valve
Actuator Code
See Table 1
If actuator code is
only three digits,
leave the fourth
digit blank.
Body Style
L = Nylon coated disc and lug body
M = AlumBronze Disc*
SS = Stainless Steel Disc*
*Note: (Consult Factory)
c
A B
C
Port Code
11 = 2”
12 = 2.5”
13 = 3”
14 = 4”
15 = 5”
16 = 6”
17 = 8”
18 = 10”
19 = 12”
20 = 14“
21 = 16”
22 = 18”
* Note:
Larger Sizes
(Consult
Factory)
4
Actuator Codes
Table 1: Actuator Codes and Part Numbers
a
Refer to the part numbering system illustration on the previous page.
Actuator
b
Code
556 MA41-7153 (VAx) (On/Off) 556 MS41-7153 (VSx)
556D 2 MA41-7153 (VAx) (On/Off) 556D 2 MS41-7153 (VSx) (Modulating)
556 MF41-7153 (VFx) (Floating) – –
556D 2 MF41-7153 (VFx) (Floating)
Actuator
b
Code
On/Off or Floating SR Actuator
b
Code
On/Off or Floating SR with Two
SPDT Auxiliary Switches
Actuator
b
Code
Modulating (2 to 10 Vdc, 4 to 20mA) SR with
the addition of a 500 ohm resistor
Modulating (2 to 10 Vdc, 4 to 20 mA) SR
with the addition of a 500 ohm resistor with Two
Auxiliary Switches
556 1 MA41-7153-502 (VAxS) (On/Off) 556 MS41-7153-502 (VSxS) (Modulated)
556D 1 MA41-7153 & 1 MA41-7153-502
(VAxS) (On/Off)
556 1 MF41-7153-502 (VFxS) (Floating) – –
556D 1 MF41-7153 & 1 MF41-7153-502
(VFxS) (Floating)
Actuator
b
Code
E24 NR-2216-521 (VFx) E24 NR-2216-541 (VSx)
E25 NR-2224-521 (VFx) E25 NR-2224-541 (VSx)
E25D 2 NR-2224-521 (VFx) E25D 2 NR-2224-541 (VSx)
Actuator
b
Code
E24 NR-2216-522 (VFxS) E24 NR-2216-542 (VSxS)
E25 NR-2224-522 (VFxS) E25 NR-2224-542 (VSxS)
E25D 1 NR-2224-521 & 1 NR-2224-522
Actuator
Code
907 MP-9810-129 (VAxS) 909 MP-9810-129 with CP-8391-456 (VSxS)
Actuator
c
Code
E10 S70-120-0061-H (VAxS) E12 S70-120-0061-SV (VAxS)
E20 S70-120-0121-H (VAxS) E22 S70-120-0121-SV (VSxS)
E30 S70-120-0201-H (VAxS) E32 S70-120-0201-SV (VSxS)
E40 S70-120-0301-H (VAxS) E42 S70-120-0301-SV (VSxS)
E50 S70-120-0501-H (VAxS) E52 S70-120-0501-SV (VSxS)
E60
(120 Vac only)
Actuator
b
Code
221 MK-7121 (VKx) 221 MK4-7121 (VKx4)
251 M556-51 (VKx) 251 M556-14 (VKx4)
251D 2 - M556-51(VKx) 251D 1 - M556-51 & 1- M556-14 (VKx4)
On/Off or Floating NSR Actuator
On/Off or Floating NSR with Two
SPDT Auxiliary Switches
(VFxS)
On/Off or Floating NSR with One
SPDT Auxiliary Switch
On/Off NSR with Two SPDT
Auxiliary Switches and Heater
S70-120-0651-H (VAxS) E62
Pneumatic Base Model SR Actuator
556D 1 MS41-7153 & 1 MS41-7153-502 (VSxS) (Modulated)
Modulating (0 to 10 Vdc, 4 to 20 mA) NSR
b
Code
Actuator
b
Code
E25D 1 NR-2224-541 & 1 NR-2224-542 (VSxS)
Actuator
Code
Actuator
c
Code
(120 Vac only)
Modulating (0 to 10 Vdc, 4 to 20 mA) NSR
with Two SPDT Auxiliary Switches
Modulating (0 to 10 Vdc) NSR
with One SPDT Auxiliary Switch
Modulating (0 to 10 Vdc, 4 to 20 mA) NSR
with Two SPDT Auxiliary Switches and Heater
S70-120-0651-SV (VSxS)
Pneumatic Modulating (Positive Positioner) SR
b
Code
a. See Table 2 to verify the correct actuator application for the valve selected.
b. D = Dual actuators
c. For 24 Vac powered change actuator code E to F (F10 = S70-24-0061-H example)
Table 2: Two-Way and Three-Way Valve Assemblies
5
Size Close
Off
Two-Way Butterfly Valve Assemblies
SmartX
b
SR
Direct
Coupled
c
NSR
High
Torque
c
NSR
a
NEMA
4 with
Hand
Wheel
c
NSR
2” 175 S S – S S
2.5” 175 S S – S S
3” 175 D S – S S
4” 50 D S – – S
175 – D – S S
5” 50 – S – S S
175 – – – S S
6” 50 – D – – –
175 – – S S S
8” 50 – – S S S
175 – – S S D
10” 50 – – S S D
175 – – S S –
12” 50 – – S S –
175 – – S S –
14” 50 – – – S –
150 – – – S –
16” 50 – – – S –
18” 50 – – – S –
20 PSI
Pneu.
b
SR
Three-Way Butterfly Valve Assemblies
SmartX
b
SR
Direct
Coupled
c
NSR
High
Torque
c
NSR
NEMA
4 with
Hand
Wheel
NSR
S
S
D
D
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
S –
S –
S –
S –
D –
D –
– –
D –
– S
– S
– S
– S
– S
– S
– S
– –
– –
– –
– –
S S
S S
S S
S –
S S
S S
S S
S S
S D
S D
S –
S –
S –
S –
S –
S –
– –
S –
– –
a
20 PSI
Pneu.
b
SR
c
a. S = Single actuator, D = Dual actuators, – = Assembly combination not available.
b. SR = Spring return actuator available as configured for normally open and normally closed two-way butterfly valves.
c. NSR = Non spring return actuator.
Table 3: Actuators
Actuator Family MX41-7153
SmartX SR
Spring Return
Available Input
Signals
Available Options
a. Requires a CP-8391-456 drive for proportional control.
Yes No No
24 Vac. Two Position,
Floating, 2 to 10 Vdc.
Proportional, 4 to 20
mA with the addition
of a 500 ohm resistor
Auxiliary Switch Auxiliary Switch Auxiliary Switch
NR-22xx
Direct Coupled
NSR
24 Vac. Three
Wire Two Position,
Floating, 0 to 10 Vdc
Proportional, 4 to
20 mA
MP-9810-129
High Torque NSR
120 Vac. Three
Wire Two Position,
Floating, 0 to 10 Vdc
Proportional
(standard)
a
S70-xxxNEMA 4 with Manual Operator with
Disconnect NSR
No
120 Vac. or 24 Vac.
Three Wire Two
Position, Floating, 0 to
10 Vdc, 4 to 20 mA.
Proportional
Auxiliary Switch
(standard) and
Heater (standard)
MK-7121/M566
20 PSI Pneumatic
Yes
8 to 13 psi Nominal
Operating Pressure
Range
Positive Positioner
Schneider Electric
F-27435-4
© 2014 Schneider Electric. All rights re served.
December 2014
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