Product Info
Literature

Overview

Two-way, high pressure,Fan Coil zone valves (VU52 and VU523), are used to control flow of hot/chilled water in commercial HVAC equipment such as fan coil units, terminal reheat coils and convectors. IMPORTANT: Not for use in systems containing dissolved oxygen

Features

Compact construction for easy installation.
Fits under the cover of most baseboard convectors with actuator fitted to valve body.
VU52 and VU53 provide 2-way, straight-through control of water.
Available in normally closed (VU53) or normally open (VU52) configurations.
300 psi (2,000 kPa, PN20) operating pressure rating.
Patented ball seal provides long service life, soft close off.
Triple O-ring seal provides three lines of defense against corrosion and water leakage around drive shaft.
Quick opening flow curve.
Available with NPT end connections for iron or steel piping.

Product Specifications

Dimensions (in.): A to B ports End to End--2 5/8 in.; Center Line of A&B ports to end of AB port--1 5/16 in.
Dimensions (mm): A to B ports End to End--66 mm; Center Line of A&B ports to end of AB port--33 mm
Maximum Safe Operating Pressure (psi): 300 psig
Maximum Safe Operating Pressure (kPa): 2068 kPa
Used With: VU444 Actuator, VU844 Actuator
Approvals, Canadian Standards Association: CSA C/US
Ambient Temperature Range (C): 1 to 52 C @ 94 C Fluid
Ambient Temperature Range (F): 34 F to 125 F at 200 F Fluid
Connection Type: Sweat
Body Pattern: Two-way, Straight-through
Pipe Size (inch): 1/2 in.
Pipe Size (DN): DN15
Maximum Differential Pressure Ratings (Close-off) (psi): 50 psi
Maximum Differential Pressure Ratings (Close-off) (kPa): 345 kPa
Capacity (Cv): 1.0 Cv
Capacity (Kv): 0.9 kvs
Valve Action: Normally Open
Valve Type: Fan Coil Valve
Controlled Fluid: Chilled or hot water with up to 60% Glycol
Materials (Body): Brass
Materials (Seat): Brass
Materials (Stem): Brass
Flow Characteristic: Quick Opening
Actuation: Must be purchased separately
Materials (Plug/Ball/Disc): Buna-N rubber
Materials (Packing): EPDM rubber