Basic Documentation

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Description
Powermite MZ Series Valve bodies work with the SSB electronic
actuator with a 7/32-inch (5.5 mm) stroke.
Features
• Direct-coupled universal bonnet/no tools required for installation
• ANSI Leakage Class IV (0.01% of Cv)
• ANSI Class 250
• Variety of actuators available
– 0 to 10 V non-spring return
– Floating control non-spring return
• Choice of end connections
• Greater than 100:1 rangeability for Cv
>
1
• Orderable as a valve only or as a complete
valve/actuator assembly
Applications
Typical applications include control of hot or chilled water, glycol
solutions up to 50%. Compatible actuators deliver a minimum of
45 lbf. (200 N) of force.
Specications
Valve Size ..............................................................1/2 to 1” (15 to 25 mm)
Body Style ........................................................................................ Globe
Seat Style ............................................................................ Metal to Metal
Action ................................................................ NO/NC/Three-Way Mixing
Valve Body Rating .............................................................. ANSI Class 250
Stem Travel (Stroke) .......................................................... 7/32” (5.5 mm)
Materials
Body ....................................Forged Brass C37700 or UNS CA 844 Bronze
Trim ............................................................................................... Brass
Stem .............................................. Stainless Steel ASTM A 582 Type 303
Packing ............................................................................. EPDM O-rings
Controlled Medium
Two-way ............................................ Water, Glycol Solutions up to 50%
Three-way .......................................... Water, Glycol Solutions up to 50%
Medium Temperature Range ............................... 35 to 250°F (2 to 120°C)
Max. Recommended Differential
Pressure for Modulating Service
Liquid 2W and 3W ....................................................... 25 psig (173 kPa)
Rangeability
Cv<1 .............................................................................................. >50:1
Cv
> 1 ............................................................................................>100:1
Close-off Ratings .............................................According to ANSI/FCI 70-2
Leakage Rate ...........................................................Class IV (0.01% of Cv)
Flow Characteristics
Two-Way NO/NC ............................................. Modied Equal Percentage
Three-Way Mixing
A→AB ........................................................ Modied Equal Percentage
B→AB ....................................................................................... Linear
Two- & Three-Way MZ Series Globe Valves
1/2 to 1"
Normally Open, Normally Closed, Mixing
ANSI Class 250