Danfoss VHS-E Data sheet
Data Sheet
VHS-E Valves for One-Pipe Parallel and BaseConnection Radiators
Application
VHS-E straight |
VHS-E angle |
The VHS-E is the ideal control valve for modern base-connection radiators, as well as for universal or bathroom radiators with connection distances of 50 mm between flow and return.
VHS-E for one-pipe systems has a fixed radiator share of 40% volume and can be used with all Danfoss sensors and thermal actuators with RA2000 connection.
To avoid back flow in one-pipe systems, installation of a back flow restrictor (003L0296) is recommended.
To avoid the occurrence of scale and corrosion in the system, the composition of the heating water should comply with VDI guidelines 2035.
To ensure an appealing finish different types of valve covers are available.
In white ABS material (RAL 9010), suitable for wet lacquering or in black PPO, suitable for electrostatic powder lacquering. Enclosure designed for towel dryers with angled valves.
System Layout
Danfoss Heating Solutions |
VD53E302 |
© Danfoss |
10/2011 |
1 |
Data Sheet |
VHS-E Valves for One-Pipe Parallel and Base-Connection Radiators |
|
|
||||
|
|
|
|
|
|
|
|
Data and Ordering |
|
|
|
|
|
|
|
Type |
|
Connection (ISO 228-1) |
kvs1) |
|
Code no. |
||
|
|
|
|
|
|||
|
|
Radiator |
System |
||||
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
Angular Straight |
|
G½ |
|
|
|
013G4692 |
|
|
|
|
|
|
|
|
|
|
G¾A |
G 3/4 A |
1.2 |
|
013G4694 |
|
|
|
|
|
||||
|
|
|
|
|
|
||
|
Angular Straight |
|
G½ |
|
013G4691 |
||
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
G¾A |
|
|
|
013G4693 |
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
Technical data 2) |
|
|
|
|
|
|
|
Max. water temperature |
|
|
|
|
120 °C |
|
|
|
|
|
|
|
|
|
|
Recommended differential pressure |
|
|
|
|
0.05-0.2 bar |
|
|
|
|
|
|
|
|
|
|
Max. technical differential pressure |
|
|
|
|
0.6 bar |
|
|
|
|
|
|
|
|
|
|
Testing pressure |
|
|
|
|
16 bar |
|
|
|
|
|
|
|
|
|
|
Max. operating pressure |
|
|
|
|
10 bar |
|
|
|
|
|
|
|
|
|
1)The kv-value represent the flow volume (Q) in m³/h at a pressure drop (Δp) through the valve of 1 bar. 
Max. flow volume (Q) through the radiator is approx. 40 %.
2)The stated maximum technical differential pressure indicates the limit for maintaining optimum control. For low-noise operation, system differential pressures should be held within the recommended range. Pumps should never be oversized; select those that generate just sufficient pressure to circulate the required volume of water.
From experience, a differential pressure of 0.05-0.2 bar across the valve is adequate in most systems. In systems where it is too high, a Danfoss differential pressure regulator can be used to reduce it.
3)If sensors of the types RAW, RAS or RAE with remote setting unit is used, the P-band increases by a factor of 1.6. Manufacturer's value ia at "N" setting.
Accessories |
Product |
Code no. |
|
Cover* for VHS valve for panel radiators, straight pattern |
013G4774 |
|
White RAL 9016, suitable for wet lacquering** |
|
|
|
|
|
Cover* for VHS avlve for panel radiators, angle pattern |
013G4775 |
|
White RAL 9016, suitable for wet lacquering** |
|
|
|
|
|
Cover* for VHS valve for towel rail radiators, straight pattern |
013G4672 |
|
White RAL 9010, suitable for wet lacquering** |
|
|
|
|
|
Cover* for VHS valve for towel rail radiators, straight pattern |
013G4674 |
|
White RAL 9016, suitable for wet lacquering** |
|
|
|
|
|
Cover* for VHS valve for towel rail radiators, angle pattern |
013G4671 |
|
White RAL 9010, suitable for wet lacquering** |
|
|
|
|
|
Cover* for VHS valve for towel rail radiators, angle pattern |
013G4673 |
|
White RAL 9016, suitable for wet lacquering** |
|
|
|
|
|
Cover for VHS valve, straight pattern, chrome |
013G4780 |
|
Cover for VHS valve, angle pattern, chrome |
013G4779 |
|
Enclosure* for VHS valve for towel rail radiators, angle pattern |
013G4751 |
|
White RAL 9010, suitable for wet lacquering** |
|
|
|
|
|
Enclosure* for VHS valve for towel rail radiators, angle pattern |
013G4755 |
|
White RAL 9016, suitable for wet lacquering** |
|
|
|
|
|
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 |
003L0295 |
|
pcs.) |
|
|
|
2 |
VD53E302 |
© Danfoss |
10/2011 |
Danfoss Heating Solutions |
Data Sheet |
VHS-E Valves for One-Pipe Parallel and Base-Connection Radiators |
|
|
Double rosette (PVC) for pipe diameter Ø 12-24 mm (min. distance 50 mm) |
192H0161 |
|
Manual handwheel for all RA type valves (valve diff. pressure max. 0.6 bar) |
013G5002 |
|
Fill-and-drain fitting, not nickel-plated, with 3/4" ext. thread and hose |
003L0152 |
|
nozzle |
|
|
|
|
|
Connection bracket for sensors without snap-lock connection (10 pcs.) |
013G4925 |
|
Cover for VHS, nickel-plated |
003L0153 |
*Requires a sensor with snap-lock. **Guidelines for lacquering are enclosed in the product carton.
VHS is suited for connection of copper, soft steel, PE-X plastic and aluminium alloys. Connection is made with the help of Danfoss clamping joints.
Draining the Radiators |
If the sensor element is removed temporarily |
A |
|
|
B |
||||
|
while the system is under pressure, it should be |
|
|
|
|
|
|
|
|
|
replaced by an appropriate handwheel – |
|
|
|
|
|
|
|
|
|
available from Danfoss - to ensure positive and |
|
|
|
|
|
|
|
|
|
safe shut-off. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
To drain the radiator, first unscrew and remove the valve’s metal cover. Then firmly shut off the return with an Allen key (see A).
Fix the drain fitting in position. Drain by turning the square headed drain screw to the left (see B).
Design |
1. Radiator |
|
2. Sealing cone
3. Valve insert, presettable, type RA-UN
4. Stuffing box
5. Draining screw for rising pipe
6. Block-off/drain of return
7. Connection nipple (self-sealing)
8. Flat packing
Materials used for parts in water contact
Danfoss Heating Solutions |
VD53E302 |
© Danfoss |
10/2011 |
3 |
Loading...