Danfoss RAV 10/8, RAV 15/8, RAV 25/8, RAV 20/8, VMT 15/8 Data sheet

Data sheet

Thermostatic actuator RAVV

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

Description

RAVV is self-acting thermostatic actuator primarily for use for temperature control in small hot water cylinders and to control flow temperatures in central heating systems.

RAVV can be combined with 2-way valves RAV-/8, VMT-/8 or VMA 15. Controller closes on rising temperature.

There is a special version with a section of the capillary tube coiled up to function as minimum temperature sensor. This version can be used to control air heating coils.

Main data:

•DN 10-25

•kv 0,4-1,6 m3/h

•PN 10 with RAV-/8 and VMT-/8 valves PN 16 with VMA valves

•Setting ranges:

10 … 38 °C / 27 … 57 °C / 40 … 70 °C

•Temperature:

- Circ. water / glycolic water up to 30 %:

2 … 120 °C with RAV-/8 and VMT-/8 valves 2 … 130 °C with VMA valves

•Connections:

- Internal and external thread

•Flow mounting

Ordering

Example:

Temperature controller, DN 15,

kv 1,6; PN 16; setting range 27 … 57 °C;

Tmax 130 °C; 2-way valve with ext. thread;

-1× RAVV thermostatic actuator, 27-57 °C

Code No: 013U1252

-1× VMA DN 15 valve

Code No: 065F2034

Option:

-1× Imm. pocket, brass Code No: 017-4370

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

RAVV thermostatic actuator

	Picture	Setting range	Capillary tube lenght	Max. sensor temperature	Code No.1)
		(°C)	(m)	(°C)
		10 … 38	1,5		013U1255
		10 … 38	5,02)	120	013U1253
		27 … 57	1,5		013U1252
		40 … 70	1,5		013U1251

1)Incl. Rp ½ sensor stuffing box

2)Effective lenght including minimum temperature sensor

Valves

	Picture	Type	DN	kv1)	PN	Connection		Code No.
			(mm)	(m3/h)		inlet	outlet
		RAV 10/8	10	1,1		Rp 3/83)	R 3/83)	013U0012
		RAV 15/8	15	1,2		Rp 1/23)	R 1/23)	013U0017
		RAV 20/8	20	1,5		Rp 3/43)	R 3/43)	013U0022
		RAV 25/8	25	1,6	10	Rp 13)	R 13)	013U0027
		VMT 15/82)	15	1,2		G 3/4 A4)	G 3/4 A4)	065F0115
		VMT 20/82)	20	1,5		G 1 A4)	G 1 A4)	065F0120
		VMT 25/82)	25	1,6		G 1 1/4 A4)	G 1 1/4 A4)	065F0125
				0,4				065F2031
				0,6				065F2032
		VMA 155)	15	0,8	16	G 3/4 A4)	G 3/4 A4)	065F2033
				1,1				065F2034
				1,7				065F2035

1)The capacity (kv ) applies to a P-band of 6 °C. Other P-band, see “Technical data”.

2)For ordering of Cu fittings, see Accessories.

3)According to ISO 7/1

4)According to ISO 228/1

5)For ordering ext. thread tailpieces, see Accessories.

DEN-SMT/SI

VD.52.O7.02 © Danfoss 03/2014

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Data sheet	Thermostatic actuator RAVV
Ordering (continuous)	Accessories for thermostat
	Picture	Type designations			Connection			Code No.
		Immersion pocket	Rp ½ × M14 × 1mm, brass, Ø 11 × 112 mm					017-4370
			Rp ½ × M18 × 1,5mm; stainlees steel Ø 11 × 112 mm					017-4369
		Sensor stuffing box	R ½ × M14 × 1 mm; rubber EPDM Ø 12,6 × 2,5 × 6 mm					013U02921)
	1) Code includes housing, gasket, 4 washers and sealing bolt
	Accessories for valves
	Picture	Type designations		For valve	Dimensions			Code No.
					Ø 15 × 1			013G4125
				VMT 15	Ø 16 × 1			013G4126
		Compression fittings1),2),3)			Ø 18 × 1			013G4128
				VMT 20	Ø 18 × 1			013U0134
					Ø 22 × 1			013U0135
				VMT 25	Ø 28 × 1			013U0140
		Weld-on tailpieces			-			003H6908
		External thread tailpieces		VMA 15	Con. ext. thread acc. to EN		R ½ “	003H6902
					10226-1
		Valve stuffing box3)		RAV/VMT/VMA				065F0006

1)Compression fitting consist of compression ring and union

2)For copper pipe

3)The products can only be ordered in multiple packing containing 10 pieces each

Technical data
									Max.		Max.		Max.	Max.
	Type RAVV-	kV (m3/h) for a P-band in °C of							working		diff.		test	flow
									pressure		pressure		pressure	temp.
		2	4	6		8	10	12	(bar)		(bar)		(bar)	(°C)
	RAV 10/8	0,6	0,8	1,1		1,2	1,3	1,4
	RAV or VMT 15/8	0,6	0,9	1,2		1,3	1,5	1,6	10		0,8		16	120
	RAV or VMT 20/8	0,7	1,2	1,5		1,8	2,1	2,3
	RAV or VMT 25/8	0,7	1,2	1,6		2,0	2,3	2,6
	VMA 15 (kVS = 0,4)	0,2	0,3	0,4							51)
	VMA 15 (kVS = 0,63)	0,3	0,5	0,6
	VMA 15 (kVS = 1,0)	0,4	0,7	0,8					16		21)		25	130
	VMA 15 (kVS = 1,6)	0,4	0,8	1,1
	VMA 15 (kVS = 2,5)	0,7	1,2	1,7							11)
	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 requiring a low-noise function the differential pressure is not to exceed 1 bar.

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VD.52.O7.02 ©©Danfosss06/201503/2014

DEN-SMT/SI

Data sheet	Thermostatic actuator RAVV

Application principles

The actuator RAVV must be installed in the flow pipeline only.

Hot water cylinder

Air heating coil

Installation positions	Temperature controller
	The valve body must be installed in the flow
	pipeline with the flow in the direction indicated
	by the cast-in arrow.
	The flow temperature must be min. 15 °C higher
	than the set closing temperature.

Temperature sensor

The sensor must be installed in position from horizontal to vercally down.

The sensor must always be placed in a pocket when the temperature is to be measured directly in a medium.

DEN-SMT/SI

VD.52.O7.02 © Danfoss 03/2014

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