Schneider Electric Butterfly Valve Assemblies Selection Guide

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.