Danfoss RAVI Data sheet

Data sheet

Thermostatic actuator RAVI

- for 2-way valves RAV-/8 (PN 10), VMT-/8 (PN 10), VMA (PN 16)

Description

RAVI is self-acting thermostatic actuator
primarily for use for temperature control of
small hot water cylinders - either storage type
cylinders or instantaneous hot water heaters.

RAVI can be combined with 2-way valves:

• RAV-/8,

• VMT-/8 and

• VMA
Controller closes on rising temperature.

The temperature controller is type-tested
according to EN 14597.

Main data:

• DN 10-25

• kv 0.25 -4.0 m

3

/h

• PN 10

• Setting range: 43 … 65 °C

• Temperature:
Circ. water / glycolic water up to 30%:
2 … 120 °C with RAV-/8, VMT-/8
2 … 130 °C with VMA valves

• Return mounting

Ordering

Example:
Temperature controller, DN 15,
kv 1.6 ; PN 10; setting range
43 … 65 °C; T
with ext. thread

- 1× RAVI thermostatic actuator,

Code No: 013U 80 08

- 1× VMA DN 15 valve
Code No: 065F2034

Option:

- 1× Imm. pocket, brass
Code No: 06 5- 4 414

- 1× Weld-on tailpieces
Code No: 003H6908

130 °C; 2-way valve

max

43 … 65 °C

RAVI thermostatic actuator

Picture

1)

DIN-te sted. Type a pproval number TR 838

2)

Incl. Rp ½ senso r stuffing box

Setting range Capillary tube length Max. sensor temp.

(°C) (m) (°C)

43 … 65 2.0 70 013U8008

Code No.

1), 2)

© Danfoss | 2017.08

VD.LJ.N1.02 | 1

Data sheet Thermostatic actuator RAVI

Ordering (continuous)

Valves

Typ e Version

RAV 10/8

DN k

(mm) (m

10 1.2

1)

v

3

/h)

PN

RAV 15/8 15 1.3 R

RAV 20/8 20 2.4 R

RAV 25/8 25 2.6 R

VMT 15/8

VMT 20/8

VMT 25/8

2)

2)

2)

2-way

15 1. 3 Rp ¾ 065F0115

20 2.4 Rp 1 065F0120

25 2.6 Rp 1 ¼ 065F0125

10

0.25

0.4 065F2031

0.63 065F2032

1.0 065F2033

16 G ¾ A

1.4 065F2034

VMA 15

15

3)

2.2 065F2035

1)

The capac ity (kv) applies with a P- band of 6 °C. For other P- bands, see Technical data.

2)

For ordering of Cu f ittings, see Accessories .

3)

For ordering ext. thread taipieces, see Accessories.

Connection

inlet outlet

R

⁄ R ⁄ 013U 0012

p

½ R ½ 013U 0017

p

¾ R ¾ 013 U002 2

p

1 R 1 013U 0027

p

Accessories for thermostat

Type designations Connection Code No.

Immersion pocket Brass, R

Immersion pocket Stainless steel, R

Housing of sensor stuffing box R

1)

Code includ es housing and gasket of sensor st uffing box

½ × M14 × 1mm, rubber EPDM Ø 12.6 × 4 × 6 mm 013U8102

½ × M14 × 1mm, Ø 12 × 170 mm 06 5-4 414

p

½ × M14 × 1mm, Ø 12 × 170 mm 065 -4415

p

Code No.

065F2030

1)

Accessories for valves

Type designations For valve Dimensions Code No.

Ø 15 × 1 013G 4125

VM T 15

Compression fittings

1), 2), 5)

VMT 20

VMT 25 Ø 28 × 1 013U 0140

Weld-on tailpieces

External thread tailpieces Con. ext. thread acc. to EN 10226-1 R ½ “ 003H 6902

Valve stuffing box

1)

Compression f itting consist of compression r ing and union

2)

For copper pipe

3)

Compression f itting consist of compression r ing and nut

4)

For steel and copp er pipe

5)

The produc ts can only be ordered in mult iple packing containing 10 pieces ea ch

5)

VM A 15

Ø 16 × 1 013G 4126

Ø 18 × 1 013G 4128

Ø 18 × 1 013U 0134

Ø 22 × 1 013U 0135

- 003H6908

RAV/VMT/VMA 065F0006

2 | VD.LJ.N1.02

© Danfoss | 2017.08

Data sheet Thermostatic actuator RAVI

Technical data

Application principles

3

Typ e RAV I

RAV 10/8 0.70 1.00 1. 20

RAV/VMT 15/8 0.70 1.10 1.30

RAV/VMT 20/8 1.00 1.80 2.40

RAV/VMT 25/8 1.20 2.00 2.60

VMA 15 (k

VMA 15 (k

VMA 15 (k

VMA 15 (k

VMA 15 (k

VMA 15 (k

Materials RAV/ VMT VMA

Valve body Brass DZR

Valve cone NBR rubber EPDM

Spindle - DZR

Temperature sensor Cu

Immersion pocket Brass or stainless steel

Capillary tube Cu

1)

In installations w here quiet function is re quired, the different ial pressure across the valve should n ot exceed 1 bar.

= 0.25 ) 0.23 0.24 0.25

vs

= 0.4 ) 0. 35 0.38 0.40 5

vs

= (0.6 ) 0.53 0.63 0.63 2

vs

= 1.0 ) 0.60 0.85 1.00 2

vs

= 1.6 ) 0.64 1.20 1.40 2

vs

= 2.5 ) 1. 00 1.55 2.20 1

vs

with a P-b and in °C of

/h)

kv (m

Max. pressure

PN

(bar)

10 0.8 16 120

16

∆p

(bar)2 4 6

5

1)

Tes t

pressure

(bar)

25 130

Max. flow

temp.

(°C)

Max. ad m. temp.

at sensor

(°C)

70

The actuator RAVI must be
installed in the return pipeline
only.

Storage cylinder Instantaneous hot water heat exchanger

Installation positions Temperature controller

The valve body must be installed in the return
pipeline with flow in the direction indicated by
the cast-in arrow.

Temperature sensor

The sensor must always be placed warmer than
the bellows.
For best performance it is recommended to
install the sensor facing up.

f

r

o

e

r

m

p

t

s

e

B

a

n

c

e

© Danfoss | 2017.08

VD.LJ.N1.02 | 3