Danfoss ESBE, VTA 572 Data sheet

Data sheet ESBE Series VTA 572

Thermostatic Diverting Valve

Applications and Features:

The VTA 572 is a 3-way thermostatic valve for
either mixing or diverting applications within
hydronic closed loop systems. This particular
non-electric thermostatic controller has a low
temperature range providing an ideal control
for a thermostatic changeover application,
while providing a cost e ective means to meet
application demands. The VTA572 is available in
two temperature ranges:

• 50 - 86°F (0 - 30°C)

• 68 - 109°F (20 - 43°C)

Technical Data:

Ordering
Information:

Flow Pattern:

Working Pressure 145 psi (10 bar)

Maximum Di erential Pressure 14.5 psi (1 bar)

Minimum  ow rate 2.4 gpm

Allowable Anti-freeze Additive Glycol ≤50% mixture

Maximum Fluid Temperature (100C)

Outlet Temperature Variation ±4.5°F (±2.5°C)

Code no. Cv Description Connection

31700100 5.2 /” Union valve body, 50-86°F (0-30°C) G1 external thread

31700200 5.2 /” Union valve body, 68-109°F (20-43°C) G1 external thread

Required Tailpieces Kit

Code no. Description

065B8892 /” Union x /” Female Solder

065B8899 /” Union x 1” Female Solder

As a mixing valve supply through the VTA572
will enter from the left, mix with return water
entering from the bottom and leave as mixed
water from the right.

Supply

Mixed

Return

In a diverting application, water will enter from
the right (Mixed) and depending on the set and
sensed temperature will exit the valve as follows:

1) Water temperature higher than set,  ow will
exit the Return port

2) Water temperature is lower than set,  ow will
exit Supply port

VD.KI.P1.22 © Danfoss 3/2013

1

Data sheet

ESBE Series VTA 572
Thermostatic Diverting Valve

Typical Piping:

Dimensions & Weight

The VTA 572 thermostatic mixing valve is well suited for use in hydronic heating
systems requiring a reduced hot water temperature such as in radiant heating
systems or automatic change over system for 2-pipe or 4-pipe hot/ chilled water
application. With the VTA 572, no electricity is required to regulate the water
temperature for changeover or the regulation of water temperature to the system.

2-Pipe Heat/ Cool Automatic
Changeover Application

Red

SUPPLY

Blue

Cooling

Heating

AB

AB

DANFOSS

KOVM

DANFOSS
RA2000

Thermostatic
Operator

RETURN

Description

/” Union valve body, 50-86°F (0-30°C)

/” Union valve body, 68-109°F (20-43°C)

Danfoss can accept no responsibility for possible errors in printed materials and reserves the right to alter its products without notice.
All trademarks in this material are property of the respective companies. Danfoss and Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

ABCDE

3.9”

(100)

Danfoss Inc.

Toronto, ON,
Tel.: [phone], Fax: [phone]
www.na.heating.danfoss.com

Dimensions, in (mm)

2.4”
(62)

2.3”

(60)

Danfoss Inc.

Baltimore, MD
Tel.: [phone], Fax: [phone]
www.na.heating.danfoss.com

2.2”
(57)

G 1”

VD.KI.P1.22 © Danfoss 3/2013

Weight
lbs (kg)

2.2

(0.99)