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Overview

High-performance three-way mixing butterfly valves provide control for heating, ventilating and air conditioning (HVAC) systems. Applications include chilled water, hot water, cooling tower water, thermal storage systems and steam up to 50 psi.

Product Specifications

Application
HVAC
Includes
Position Indication ; Push Button for manual operation
Used With
MB-NSR-SWITCH Aux Switch Kit
Item Type
Product
Mounting
ASME/ANSI Class 150 Flange
Frequency
50 Hz ; 60 Hz
Approvals, Underwriters Laboratories Inc.
C/US Listed
Voltage
24 Vac ; 24 Vdc
Approvals, CE
Certified
Enclosure
NEMA 2 IP54
Ambient Temperature Range (F)
Actuator-- -22 F to 122 F
Ambient Temperature Range (C)
Actuator-- -30 C to 50 C
Connection Type
Lugged
Body Pattern
3-way (Mixing)
Pipe Size (inch)
2.5 in.
Pipe Size (DN)
DN65
Fluid Temperature (C)
-30 C to 204 C
Fluid Temperature (F)
-22 F to 400 F
Maximum Differential Pressure Ratings (Close-off) (psi)
150 psi
Maximum Differential Pressure Ratings (Close-off) (kPa)
1034 kPa
Capacity (Cv)
at 60 degrees stroke--80 Cv; at 90 degrees stroke--146 Cv
Capacity (Kv)
at 60 degrees stroke--69 kvs; at 90 degrees stroke--126 kvs
Valve Action
Normally Closed
Valve Type
Butterfly
Controlled Fluid
Chilled or hot water- up to 60% glycol ; on/off steam control up to 50 psi
Materials (Body)
Carbon steel
Materials (Seat)
RTFE
Materials (Stem)
17-4 PH stainless
Flow Characteristic
Modified Linear, Unidirectional
Actuation
MBP7LRF2/U Modulating, fail-in-place, actuator included
Static Pressure Rating (psi)
285 psi
Static Pressure Rating (kPa)
1965 kPa
Flange Bolts
4, Flange Bolt Thread--0.625 in. -11 pitch
Materials (Plug/Ball/Disc)
316 stainless steel
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