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Overview

On-off and diverting low voltage valves consist of an actuator and valve assembly for controlling the flow of hot water.

Features

  • Manual opener (on all models, except straight-through, normally open valves) for valve operation on power failure; valve returns to automatic position when power is restored.
  • All models may be installed without disassembling the valve.
  • Compact construction for easy installation.
  • Complete powerhead may be removed or replaced without breaking plumbing line connections or draining the system.
  • Actuator motor may be replaced without removing the valve body or draining the system.

Product Specifications

Application
Hydronic Control
Dimensions (in.)
4 7/8 in. high x 3 23/32 in. wide x 2 3/8 in. deep
Dimensions (mm)
124 mm high x 94 mm wide x 60 mm deep
Comments
Use this valve in closed loop hydronic systems that do not contain dissolved oxygen in system water, such as fresh water from frequent source of makeup water. Valve designed for cycling (not constantly powered on) applications.
Frequency
50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.
UL Listed: File MH11826
Approvals, Canadian Standards Association
CSA Certified: File 1322
Operating Humidity Range (% RH)
5 to 95% relative humidity, non-condensing.
Voltage
24 Vac; Power Consumption--7.7 VA
Ambient Temperature Range (C)
52 C Maximum
Ambient Temperature Range (F)
125 F Maximum
Connection Type
NPT
Electrical Connections (in.)
18 in. leads
Electrical Connections (mm)
457 mm leads
Timing
Nominal Open--30 sec
Body Pattern
Three-way, Diverting
Pipe Size (inch)
1/2 in.
Pipe Size (DN)
DN15
Current Draw
0.32A
Fluid Temperature (C)
5 C to 93 C
Fluid Temperature (F)
40 F to 200 F
Maximum Differential Pressure Ratings (Close-off) (psi)
20 psi
Maximum Differential Pressure Ratings (Close-off) (kPa)
138 kPa
Capacity (Cv)
4 Cv
Capacity (Kv)
3.4 Kv
Valve Action
Spring Return
Valve Type
Zone Valve
Materials (Body)
Brass
Materials (Seat)
Brass
Materials (Stem)
Stainless Steel
Actuation
Two position
De-energized Position
Port A Normally Closed
Static Pressure Rating (psi)
125 psi
Static Pressure Rating (kPa)
862 kPa
Materials (Plug/Ball/Disc)
Buna-N (NBR) Rubber Ball
Materials (Packing)
EPDM rubber
Manual Opener
Yes
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