Siemens Building Technologies Powermite 656 Series Globe Catalog Page
Three-Way Water Mixing Valves
1/2" Flared Type
Mixing
Powermite
656 Series Globe
656 Powermite
Three-Way Water Mixing Valve.
Description
Designed for water mixing applications, the 656 Powermite
Three-way Mixing Valve is a high-grade bronze body
forged with connections for 1/2-inch OD SAE are ttings.
Features
• Enclosed actuator protects spring, diaphragm
• Compact size
• Actuator can be rotated to facilitate air connection
• Modied equal percentage NO port characteristic
• Dual valve stem packing allows upper packing ring
replacement without system shutdown
Applications
The 656 Powermite Three-way Water Mix Valve are
recommended for mixing of hot or chilled water for
convectors, fan coil units, radiation, reheat coils and
similar terminal units which require water mixing. The
dual sealing packed design is excellent for applications
for higher-pressure systems encountered in high rise
buildings. The compact size is excellent for use when
space is limited.
A-237
Valves
www.usa.siemens.com/hvac
656 Powermite Three-Way Specifications
A-238
Valve Size .............................................................................1/2" (15 mm)
Valve Body Style .....................................................................Flared End
Valve Action ............................................Upper Seat NC/Lower Seat NO
Stem Travel ..........................................................................3/8" (10 mm)
Valve Body Material ...................................................................... Bronze
Valve Body Rating ..........................................................ANSI Class 250
Standard Spring Ranges with 10 psi (69 kPa)
Differential Pressure ......................................... 3 to 8 psi (21 to 55 kPa)
10 to 15 psi (69 to 103 kPa)
Nominal Spring Span ........................................................ 5 psi (35 kPa)
Effective Diaphragm Area .............................................. 3.4 in.2 (22 cm2)
Max. Diaphragm Pressure ............................................ 30 psi (207 kPa)
Air Connection ........................................................................... 1/8" NPT
Controlled Medium ............................................... Water, Glycol Solution
Max. Medium Temperature .............................................. 250°F (121°C)
Max. Differential Pressure for Modulating Service
Between Inlets .............................................................. 25 psi (172 kPa)
Between Inlet & Outlet.................................................. 25 psi (172 kPa)
Shipping Weight ................................................................2.0 lb. (0.9 kg)
656 Powermite Three-Way Product Ordering
Valve Size Cv Spring Range Part No.
1/2" (15 mm) 2.5 10 to 15 lb. (69 to 103 kPa) 656-0009
1/2" (15 mm) 2.5 3 to 8 lb. (21 to 55 kPa) 656-0010
1/2" (15 mm) 1.5 3 to 8 lb. (21 to 55 kPa) 656-0011
Dimensions and Weights
Valves
Dimensions shown in inches (mm).
Accessories & Service Kits
www.usa.siemens.com/hvac
A-257
Loading...