Danfoss VHS Data sheet

Data Sheet

VHS Valve with Integrated Pre-Setting
and Shut-o/Drain

Application

VHS straight VHS angle

The VHS is the ideal control valve for modern
base-connection radiators, as well as for universal
or bathroom radiators with connection distances
of 50mm between ow and return. Quick and
easy to install, it will accept standard Danfoss
snap-lock sensor elements.

System layout

The VHS incorporates an integral presetting
mechanism, for quick and accurate system
balancing, and a combined shut-o/drain device.
Connection to copper, soft steel, alupex and PEX
plastic pipes can be carried out with Danfoss
clamping joints. An optional ll-and-drain tting
is available.

To avoid the occurrence of scale and corrosion in
the system, the composition of the heating water
should comply with VDI guidelines 2035.

1. Co ver 2. Enclosure for
towel driers

To ensure an appealing nish dierent types of
valve covers are available:

1. In white ABS material (RAL 9010) which is suit­able for wet lacquering or in black PPO suitable
for electrostatic powder lacquering.

2. Enclosure designed for towel dryers with
angled valves.

VD53D502 © Danfoss 10/2014

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Data Sheet VHS Valve with Integrated Pre-Setting and Shut-o/Drain

Ordering and data

Connection Settings

VHS- UN 15

Angle

Straight 013G 4742

Angle

Straight 013G4744

1) The kV-values represent the ow volume (Q) in
m³/h at a pressure drop (Δp) through the valve
of 1 bar;

At setting N, the kV-values are given for Xp = 2 K.
At lower presettings, Xp is reduced for the
kV-values stated to 0.5 K at preset value 1.
The kV-values state Q at full ow, i.e. for a fully
opened valve.

2) If sensors RAW/RAS/RAE/Remote Setting Unit is
used, the P-band increases by a factor of 1.6.
Manufacturer’s value is at “N” setting.

VH S-UN 15 0.39 0.57

(ISO 228 -1)

Radiator System 1 2 3 4 5 6 7 N N

R½

G¾A 0.02 0.04 0.07 0.12 0.19 0.27 0.33 0.48 0.57

G¾

kV-values

Temperature and pressure*

Max. water temperature 120 °C

kV=

Q

√Δp

Recommended
dierential pressure

Max. technical
dierential pressure

Testing pressure 16 bar
Max. operating pressure 10 bar

*The stated max. technical dierential pressure indicates
the limit for maintaining optimum control. For low-noise
operation, system dierential pressures should be held
within the recommended range. Pumps should never be

kV at Xp = 2 k

VS

oversized; select those that generate just sucient pressure
to circulate the required volume of water. From experience,
a dierential pressureof 0.05-0.2 bar across the valve is
adequate in most systems.In systems where it is too high,
a Danfoss dierential pressure regulator can be used to
reduce it.

1) 2)

k

VS

0.05-0.2 bar

Code no.

013G 4741

013G 4743

0.6 bar

Presetting

Danfoss pre-settable valve bodies incorporate
easy setting adjustment collars with clearly
engraved setting markers from 1 - 7 and N.
Setting can be made quickly and precisely,
without the need for tools, as follows:

• Remove protective cap or sensor element.

• Lift setting collar.

• Turn anti-clockwise to the desired engraved

setting value. The setting mark always points
directly to the radiator connection point.

• Allow setting collar to fall back to its original

position.

Preset levels can be selected in 0.5 increments
between 1 and 7 (see chart for ow rates).
At setting N the valve is fully open ushing
option).

Settings in the hatched areas should be avoided.

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VD53D502 © Danfoss 10/2014

Data Sheet VHS Valve with Integrated Pre-Setting and Shut-o/Drain

Accessories

Product Code no.

Cover* for VHS valve for panel radiators, straight pattern, white RAL 9016,
suitable for wet lacquering (see product carton)

Cover* for VHS valve for panel radiators, angle pattern, white RAL 9016,
suitable for wet lacquering (see product carton)

Cover* for VHS valve for towel rail radiators, straight pattern, white RAL 9010,
suitable for wet lacquering (see product carton)

Cover* for VHS valve for towel rail radiators, straight pattern, white RAL 9016,
suitable for wet lacquering (see product carton)

Cover* for VHS valve for towel rail radiators, angle pattern, white RAL 9010,
suitable for wet lacquering (see product carton)

Cover* for VHS valve for towel rail radiators, angle pattern, white RAL 9016,
suitable for wet lacquering (see product carton)

Cover for VHS valve, straight pattern, chrome
Cover for VHS valve, angle pattern, chrome
Enclosure* for VHS valve for towel rail radiators, angle pattern, white RAL

9010, suitable for wet lacquering (see product carton)
Enclosure* for VHS valve for towel rail radiators, angle pattern, white RAL

9016, suitable for wet lacquering (see product carton)

013G 4774

013G4775

013G 4672

013G 4674

013G 4671

013G4673

013G 4780

013G 4779

013G4751

013G4755

Sealing cone incl. seal for valve radiator with 3/4” ext. thread (20 pcs.) 003L0294

Self-sealing connection nipple for valve radiator with G½ int. thread (20 pcs.) 003L0295

Double rosette (PVC) for pipe diameter Ø 12-24 mm (min. distance 50 mm) 192H0161

Manual handwheel for all RA type valves (valve di. pressure max. 0.6 bar)

Fill-and-drain tting, not nickel-plated, with 3/4” ext. thread and hose nozzle 003L0152

Connection bracket for sensors without snap-lock connection (10 pcs.)

Cover for VHS, nickel-plated 003L0153

*Requires a sensor with snap-lock.

013G5002

013G 4925

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