Danfoss AVT/VGS Data sheet

TR(TW)700

Data sheet

Temperature controller for steam (PN 25)

AV T / VGS - external thread

Description

The AVT / VGS controller is a self-acting proportional temperature controller developed primarily for steam or hot water applications for temperatures up to 200 °C. Controller closes on rising temperature.

The controller has a control valve VGS, thermostatic actuator and handle for temperature setting. Thermostatic actuator consist of bellows, capillary tube and sensor.

The temperature controller is type-tested according to EN 14597 and can be used in combinations with safety temperature monitors STM and safety temperature limiters STL.

Main data:

• DN 15-25

• kVS 1.0 - 6 . 3 m3/h

• PN 25

• Setting ranges:

−10 … 40 °C / 20 … 70 °C / 40 … 90 °C / 60 … 110 °C and

10 … 45 °C / 35 … 70 °C / 60 … 100 ° C / 85 … 125 °C

• Temperature:

• Steam / circ. water / glycolic water up to 30 %:

2 … 200 °C

• Connections:

• Ext. thread (weld-on, thread and flange

tailpieces)

• Flow and return mounting.

Ordering

Example: Temperature controller for steam, DN 15; kVS 1.6; PN 25; setting range 40 … 90 °C; T

- 1× VGS DN 15 valve Code No: 065B0787

- 1× AVT thermostatic actuator, 40 … 90 °C

Code No: 065-0602

Option:

- 1× Weld-on tailpieces Code No: 0 03H6908

The valve will be delivered (assembled) together with an adapter M34 × M45.

200 °C; ext. thread

max

Picture

DN k

(mm) (m3/h)

20 4.5 G 1 A 065B0789

25 6.3 G 1¼ A 065B0790

1.0

1.6 065B0787

3.2 065B0788

Cylindrical external thread acc. to

Connection Code No.

ISO 228/1

VGS Valve

Adapter M34 × M45 fo r connection to AVT thermos tat is factory assembled on t he valve.

(info: Adapter M34 × M30 fo r connection to AMV(E) electri cal actuators is part of t he valve delivery too.)

AVT Thermostatic actuator

Picture For valves

conic male th read EN 10226 -1

without imme rsion pocket

DN 15-25

Setting range

(°C)

−10 … + 4 0

20 … 70 065-0601

40 … 90 065-0602

60 … 110 065-0603

10 … 45

35 … 70 065-0605

60 … 100 065-0606

85 … 125 065-0607

Temperature sensor with brass immersion

pocket, length, connection

210 mm, R ¾

255 mm, R ¾

1) 2)

065B0786

G ¾ A

Code No.

065-0600

065-0604

VD.JK.C5.02 | 1

Data sheet Temperature controller for steam AVT/VGS (PN 25)

Ordering (continuous)

Accessories for valves

Picture Type designation DN Connection Code No.

Weld-on tailpieces

20 003H6909

25 00 3H6910

External thread tailpieces

Conical ex t. thread acc. to

20 R ¾ 003H6903

25 R 1 003H6904

EN 10226 -1

R ½ 0 03H6902

Flange tailpieces

20 003H 6916

Flanges PN 25, acc. to EN 1092-2

25 0 03H6 917

Accessories for thermostats

Picture Type designation PN Material Code No.

Immersion pocket 25

Adapter

Stainless steel, mat. No. 1.4435 06 5-4 417

M34 × 1.5 mm / M45 × 1.5 mm 003H6927

Brass 065- 4416

Combination piece K2 003H6855

Combination piece K3 003H6856

Not for AVT th ermostatic actuator code n umbers: 065-0604, 065-0605, 065-0606, 065-0607

Adapter for VGS comb inations with thermostatic ac tuators AVT, temperature monito rs STM and temperature limite rs STL

Service kits

Picture Type designation for valves DN k

15 3.2

Valve body extension with stuf fing box

25 6.3

Housing of sensor stuffing box

for sensors Code No.

AVT R ¾ 065 -4421

003H6908

003H 6915

Code No.

003H687720 4.5

2 | VD.JK.C5.02

Data sheet Temperature controller for steam AVT/VGS (PN 25)

Technical data

Valves

Nominal diameter DN 15 20 25

kVS value m3/h 1.0 1.6 3.2 4.5 6.3

Stroke mm 3 5

Control ratio >1: 50

Control characteristic linear

Cavitation factor z ≥ 0.6 ≥ 0.55

Leakage acc. to standard IEC 534 % of k

Nominal pressure PN 25

Max. differential pressure bar 10

Media Steam / Circulat ion water / gl ycoli c water up t o 30 %

Media pH Min. 7, max. 10

Media temperature °C 2 … 20 0

Connections

Materials

Valve body Red bronze CuSn5ZnPb (Rg5)

Valve seat Stainless steel, mat. No. 1.4571

Valve cone Stainless steel, mat. No. 1.4122

Pressure relieve system Bellows

valve External thread

tailpieces Weld-on, external thread and flange

≤ 0.05

Thermostatic actuator

Setting range X

Time constant T acc. to EN 14597 s max. 50 (210 mm), max. 30 (255 mm)

Gain K

Max. adm. temperature at sensor 50 °C above maximum setpoint

Max. amb. temperature at thermostat °C 0 … 70

Nominal pressure sensor

Nominal pressure immersion pocket

Capillary tube length 5 m (210 mm), 4 m (255 mm)

Materials

Temperature sensor Cooper

Immersion pocket

Handle for temp. setting Polyamide, glass fiber-reinforced

Scale carrier Polyamide

for sensor 210 mm

Ms design Brass, nickel-plated

Stainless steel design Mat. No. 1.4435 (210 mm)

°C

mm/°K

PN 25

−10 … 4 0 / 20 … 70 / 40 … 90 / 60 … 110 10 … 45 / 35 … 70 / 60 … 100 / 85 … 125

0.3 (210 mm), 0.7 (255 mm)

Application principles

VD.JK.C5.02 | 3

Data sheet Temperature controller for steam AVT/VGS (PN 25)

Combinations

Example: Temperature controller with safety temperature monitor for steam, DN 15, kVS 1.6, PN 25, setting range 40 … 90 °C, T

- 1× VGS DN 15 valve Code No: 065B0787

- 1× AVT thermostatic actuator, 40 … 90 °C Code No: 065-0602

- 1× STM thermostat, 30 … 110 °C

Code No: 065-0608

- 1× K2 combination piece Code No: 003H6855

Products will be delivered seperatly.

Note:

For safety te mperature monitor STM / VGS data and safety temperatu re limiter STLS d ata see relevant data sheet

200 °C, ex t. thread

max

AVT / VGS

- temperature controller

AVT / AVT / VGS

- two temperature controllers

STM / AVT / VGS

- temperature controller with safety temperature monitor for steam

Temperature controllerInstallation positions

Up to media temperature of 160 °C the controllers AVT / VGS can be installed in any position.

STM / AVT / AVT / VGS

- two temperature controllers with safety temperature monitor for steam

For higher temperatures the controllers AVT / VGS have to be installed horizontal and in horizontal pipes with the actuator oriented downwards.

4 | VD.JK.C5.02

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