Danfoss ASV-PV, ASV-BD, ASV-M Data sheet

Data sheet

Automatic balancing valves

ASV DN 15-50 (4th gen.)

ASV-PV ASV-BD ASV-M DN 15-50 DN 15-50 DN 15-50

Description

ASV whiteboa rd animation

ASV valves are automatic balancing valves. Together with Danfoss presetting radiator thermostatic valves they are part of the Danfoss two-pipe solution and are perfect for creating optimal hydronic balance in residential two-pipe heating systems.

One of the major challenges in heating systems is a lack of good hydronic balancing, caused by differential pressure, which is changing constantly and unpredictably in the heating system. This results in complaints from residents about poor indoor comfort, noise and high energy bills.

Trying to solve these complaints, larger pumps are often installed to improve - especially under heated - circulation of the water. Unfortunately, this affects pressure differentials and energy consumption within the system even more. Besides, the higher pressure differential, the greater the noise from the system, particularly from radiator valves.

ASV automatic balancing valves ensure an optimal pressure differential for control valves as well as the correct flow within the individual risers at all times. This is the reason why DIN 18380 requires control of differential pressure at partial loads. The ASV automatically creates an optimal hydronic balance within the installation, whether under full or partial load. This balance is never disrupted.

The ASV valves can also be used in cooling applications (fan coil, chilled beam, etc) with variable flow, to secure an automatic hydronic balance (see general ASV datasheet for details).

Benefits

Installing an ASV combination ensures:

• Fewer complaints: ASV makes the system more reliable, with less disturbances such as noisy radiators, under heating of rooms far away from the heat source, or over-heating of rooms close to the heat source. Fewer complaints means less call-backs to installer to solve the complaints.

• Improved indoor comfort:

ASV provides stable pressure conditions to radiator or floor heating control valves resulting in more accurate room temperature control.

• Lower energy bills: Higher energy efficiency is contributed by solving overheating problem and ensuring more accurate temperature control. Proper balance prevents overflows thus resulting in low return water temperature, which improves energy efficiency of condensing boilers and district heating systems.

• Simplicity:

ASV divides the piping system in pressure independent zones, typically individual risers or apartments so complex and time consuming calculation and commissioning methods are not needed anymore. It also allows a gradual connection of zones to the main constructions without additional balancing.

• Ease of use: The new generation of ASV automatic balancing valves is even simpler to use than

before. The improved setting scale can now be set without using an allen key, saves time for the installer during commissioning and maintenance of the system while new flushing function saves time during flushing of pipe network.

VD.A9.J2.02 | 1

Data sheet Automatic balancing valves ASV

Applications ASV balancing valves are designed to guarantee

high quality of automatic balancing by:

• a pressure released cone,

• an adapted membrane for valve dimension

which provides constant quality performance for all sizes,

• linear and accurate setting scale that makes setting required ∆p easy.

• low required 10 kPa pressure drop on ASV-PV valve contributes to smaller pump head.

The Danfoss ASV solution comprises an automatic balancing valve ASV-PV and an associated partner valve (Fig. 1 and 2). The ASVPV is a differential pressure controller, fitted into the return pipe. The partner valve is fitted into the supply pipe. Both valves are connected to each other using a mpulse tube.

There are two basic configurations when using ASV partner valves:

Partner valve outside the control loop (Fi g .1). Recommended valve ASV-BD (default configuration: blue test plug needs to be open, red is in closed position) or ASV-M: It results in best performance since whole controlled pressure range is available to the riser. Flow limitation is done on each terminal unit in the riser (for example, RA-N with presetting on radiator, etc).

The pressure controller has a factory setting of 10 kPa or 30 kPa, perfect for typical radiator based heating systems. Of course it can easily be adjusted to another setting using the setting scale. If the pressure differential tends to become greater than this setting, then the ASV automatic balancing valve immediately reacts and keeps the pressure differential constant. By this the pressure in the controlled riser or loop does not increase due to any system load changes.

ASV balancing valves have integrated service functions such as: *Flushing *shutt-off *draining Shut-off function is separated from the setting mechanism.

Partner valve inside the control loop (Fig.2). Recommended valve ASV-BD (red test plug needs to be open, blue is in closed position): Offers flow limitation on the riser however part of the controlled pressure range is used by pressure drop on partner valve (∆pp). It is recommended when flow limitation on each terminal is not possible.

p

Please note tha t blue test plug on ASV-BD ne eds to be open

(default co nfiguration)

Fig. 1 Setting of ASV-PV = ∆p outside the control loop)

p

(partner valve

riser

p

Please note tha t the red test plug on ASV-BD ne eds to be

open and blu e test plug closed

Fig. 2 Setting of ASV-PV = p

p

+ p

riser

ASV-BD can be used outside or inside the control loop by choice of which measuring nipple is open. Change of configuration can be done under pressure - simply by closing/opening test plugs. Configuration inside the control loop (default position) allows flow verification, while configuration outside the control loop allows flow limitation.

2 | © Danfoss | 2016.11

VD.A9.J2.02

Data sheet Automatic balancing valves ASV

Applications (continuous)

ASV valves are to be used in radiator heating systems to control the differential pressure in risers (Fig. 3) or horizontal loops - mostly used in new installation (Fig. 4). To limit the flow for every radiator, the thermostatic radiator valve with presetting function is used together with a constant pressure provided by the ASV, thus providing balanced heat distribution.

Fig. 3 ASV in vertical riser / t ypical radiator heating

application (general example)

Fig. 4 ASV in horizontal loop / t ypical radiator heating application (general example)

ASV valves are also a perfect solution in floor heating systems (Fig. 5). To limit the flow, every manifold with integrated presetting should be used together with a constant pressure provided by an ASV-PV valve.

ASV-BD

ASV-PV

Fig. 5 ASV in manifold for floor heating system

Alternatively the flow for the whole manifold can be limited by using the setting function of the ASV-BD. Due to its small dimensions the ASV automatic balancing valves are easy to install in a wall mounted box for floor heating manifolds.

VD.A9.J2.02

Data sheet Automatic balancing valves ASV

Ordering

ASV-PV balancing valve, included in the box:

1,5 m impulse tube (G ⁄ A)

Typ e DN

(m3/h) (kPa)

15 1, 6

20 2,5 Rp ¾ 003Z5502 003Z5602

25 4,0 Rp 1 003Z5503 003Z5603

32 6,3 Rp 1¼ 003Z5504 003Z5604

40 10,0 Rp 1½ 003Z5505 003Z5605

50 16, 0 Rp 2 003Z5506 003Z56 06

15 1, 6

20 2,5 G 1 A 003Z5512 00 3Z5612

25 4,0 G 1¼ A 00 3Z5513 0 03Z5 613

32 6,3 G 1½ A 00 3Z5514 -

40 10,0 G 1¾ A 0 03Z5515 -

50 16, 0 G 2¼ A 003Z5516 -

15 1, 6

20 2,5 Rp ¾ 003Z5542

25 4,0 Rp 1 003Z5543

32 6,3 Rp 1¼ 003Z5544

40 10,0 Rp 1½ 003Z5545

50 16, 0 Rp 2 003Z5546

15 1, 6

20 2,5 G 1 A 003Z5552

25 4,0 G 1¼ A 003Z5553

32 6,3 G 1½ A 003Z5554

40 10,0 G 1¾ A 003Z5555

50 16, 0 G 2¼ A 003Z5556

Connection

Rp ½

Internal thread

IS O 7/1

G ¾ A

External thread

ISO 228/1

Rp ½

Internal thread

IS O 7/1

G ¾ A

External thread

ISO 228/1

∆p setting range Code No.

without insulation with EPP insulation

003Z 5501 003Z 5601

5-25

003 Z55 11 0 03 Z56 11

5-25

003Z5 541

20-60

003Z5551

20-60

ASV-BD shut-off valve, multifunctional partner

valve (shut-off, rotating measuring station) and EPP insulation

Typ e DN

(m3/h)

15 3,0

20 6,0 Rp ¾ 003Z4042

25 9,5 Rp 1 003Z4043

32 18 Rp 1¼ 003Z404 4

40 26 Rp 1½ 003Z4045

50 40 Rp 2 003Z4046

Connection Code No.

Rp ½ 003Z4 041

Internal

thread IS O 7/1

ASV-M shut-off valve, without test plugs and with EPS insulation

Typ e DN

(m3/h) 15 1, 6

20 2,5 Rp ¾ 0 03L7692

25 4,0 Rp 1 0 03L7693

32 6,3 Rp 1¼ 0 03L7694

40 10 Rp 1½ 0 03L7695

15 1, 6

20 2,5 G 1 A 003L7697

25 4,0 G 1¼ A 0 03L7698

32 6,3 G 1½ A 003L7699

40 10 G 1¾ A 003L7700

50 16 G 2¼ A 003L7702

Connection Code No.

Rp ½ 003L7691

Internal

thread IS O 7/1

G ¾ A 003L7696

External

thread

ISO 228/1

4 | © Danfoss | 2016.11

VD.A9.J2.02

Data sheet Automatic balancing valves ASV

Ordering (continuous)

Spare parts

Typ e Description Comments Connection/Dimension Code No.

ASV-PV handle

ASV-PV Service kit 20- 60 kPa

ASV-PV Service kit 5-25 kPa

ASV-PV Service kit 20-80 kPa

Differential pressure measuring connector For ASV-PV drain connection 003L8143

ASV-PV drain connection DN 15-50 00 3L8141

ASV-BD handle

Impulse tube, with O-rings

DN 15-25 003Z7855

DN 32-50 003Z7857

DN15 -20 003 Z7831

DN 25 003Z7832 DN 32 003Z7833 DN 40 003Z7834 DN 50 003Z7835

DN15 -20 0 03Z7841

DN 25 003Z7842 DN 32 003Z7843 DN 40 003Z7844 DN 50 003Z7845 DN 32 003Z7836 DN 40 003Z7837 DN 50 003Z7838

1,5 m 003L 8152 2,5 m 003Z0690

5 m 0 03L8153

003Z4652

O-ring for impulse tube Set of 10 pieces 2,90 × 1,7 8 003L8175

Plug for impulse tube connection ASV-BD/M Set of 10 pieces G ⁄ A 0 03L 8174

With handle

For com plete range of ASV-BD accessori es please refer to LENO™ MSV-BD datashe et.

Accessories - Fittings

Typ e Comments to pipe to valve Code No.

R / DN 15 003Z0232

R / DN 20 0 03Z0233

Tailpiece threaded (1 pcs.)

Tailpiece welding (1 pcs.)

R 1 DN 25 003Z0234

R 1 / DN 32 003Z0235

R 1/ DN 4 0 003Z0273

R 2 DN 50 (2 /”)

DN 15

DN 20

DN 25

DN 32

DN 40

DN 50 DN 50 (2 /”)

DN 15 003Z0226

DN 20 003Z0227

DN 25 003Z0228

DN 32 003Z0229

DN 40 003Z0271

00 3Z0274

003Z0272

VD.A9.J2.02

Data sheet Automatic balancing valves ASV

Accessories

Typ e Description Comments Connection/Dimension Code No.

ASV-PV flushing accessory 003Z7850

Two test plugs and one locking plate For ASV-M, rectus t ype 00 3L8145

3 mm test plugs, 2 pcs For ASV- BD

ASV-BD drain connection

Plastic impulse tube with connec tors and adapters

Commissioning label

½” hose connection 003Z4096

¾” hose connection 003Z4097

For making set of 10 pieces

Set of 10 pieces DN15 -50 003Z7860

Plug for connecting impulse tube G ⁄-R ¼ connection 00 3L8151

EPP insulation cap for ASV-PV

EPP insulation cap for ASV-BD

max. 120 °C

EPP insulation cap for ASV-M

For com plete range of ASV-BD accessori es please refer to LENO™ MSV-BD datashe et.

To be fitte d on insulation

10m of impulse tube

003Z4662

003Z0689

DN 15-20 003Z7800

DN 25 0 03Z7802

DN 32 003Z7803

DN 40-50 003Z7804

DN 15 003Z4781

DN 20 0 03Z4782

DN 25 0 03Z4783

DN 32 003Z4784

DN 40 003Z4785

DN 50 0 03Z4786

DN 15 00 3L8170

DN 20 0 03L 8171

DN 25 0 03L8172

DN 32 00 3L817 3

DN 40 0 03L8139

Technical data

Typ e ASV-P V ASV-M ASV-B D

Nominal diameter DN 15- 50 15- 50 15-50

Max. pressure (PN)

Test pressure 25 25 30

bar

Differential pressure over the valve kPa 10-250 10-150

Shut Off leakage No visible leakage

Working temperature

Storage and transport temperature –40 … 70

°C

16 16 20

10-2 50

0 … 120 –20 … 120 –20 … 120

Material of parts in contact with water

Valve body Brass Brass DZR brass

Cone DZR brass Brass

Membrane / O-rings EPDM EPDM EPDM

Spring Patent wire - -

Ball - - Brass / chromium plated

Pl ease note that the maximum adm issible differential p ressure across the valve 150 kPa should also not be excee ded at partial load.

ISO 5208

VD.A9.J2.02

+ 14 hidden pages