Thermostat ic Series VTA320

The ESBE thernostatic mixing valves Series WA320 ofter a good function for universal applications, such asdonestic hot water regulation with or without Hl4/C (hot-water circulation) and smaller undertbor heating circuits.

0peration

The series WA320 is the number one choice for domestichot water systems reguiring a scald safe* function and wherefurther temperature<ontrol devices have been installed at thetaps. This series of valves is also suitable for domestic hotwater installations equipped with HWC (hot-water circulation).

The constant temperature control is another field of applica-tion for the series WA320, making it suitable to be used insmaller underfloor heating applications (up to 50m'z).Supplied with a top cover, unless otherwise stated.

Flowoattern: L-l c

* Scald safe means that in the case of a cold water failure.the hot water supply shuts off automatically.

Mater ia l

The valve housing and other metal parts with fluid contact:. . DZR brass CW 602N. resistant to dezincification

Technical Data

P r e s s u r e c l a s s : . . . . . . . . P N 1 0Max. differential pressure: ..... 3 bar(0.3 MPa)Pressure drop diagram: . . . . See page 36Max .work ing tempera tu re : . . . . . . 95oCRegulat ion accuracy: . . . .Enl ig ts tandard*Connections: . . . lnternal thread, lS0 7/1

. . . . External thread, lS0 22811* For those designs that are not comprised by any standard,the accuracy is tZoC at a minimum flow of 4 l/minutes.For the series WA320 this is valid at an unchanged pre*sure of the incoming cold and hot-water.

Art. No.31 10 27 003110 26 003t 10 39 0031 10 02 003110 01 0031 10 04 0031 10 03 0031 10 08 0031 10 07 0031 10 29 0031 10 28 003 1 1 0 0 6 0 031r0 05 0031 10 10 0031 10 09 00

ReferencewA323"wA323*WA323wA323*wA323*VTA321VTA321WA321WA32Iw4322w4322WA322WA322WA322WA322

Knob/CoverTemp.range DN/Connection

35-60"C20-43"C35-60"C35-60'C20-43"C35-60"C20-43'C35-60"C20-43'C35-60'C20-43"C35-€0"c20-43"C35-60'C20-430C

Kvs1.21.21.51 E

1 E

1 E

1.61 .61 .21 .21 5

l . o

l . o

0.490.490.660.570.570.450.450.480.480.410.410.450.450.480.48

B C50 5250 5250 5250 5250 5242 5242 5242 5242 5242 5242 5242 5242 5242 5242 52

Cover 86Cover 86Cover 86Cover BoCover 86Cover 70Cover 70Cover 70Cover 70Cover 70Cover 70Cover 70Cover 70Cover 70Cover 70

Weisht [kg]15 mm cpfl5 mm cpf18 mm cpf22 mm cpf22 mm cpf

Rp 112RP'u2Rp 3/4Rp 3/4G 112G 112G 314G 3/4G 1G 1

* A non-return valve for the cold water pipe is included. cpf = compression f i t t ing

@ Copyi$rt. Ail rtghB reserued.

44