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Data Sheet
H Series Motorised Valves
Rotary-Shoe and Paddle Types
Application
Danfoss Randall H Series Motorised Valves,
working in conjunction with time controls and
thermostats, are used in domestic and
commercial central heating, hot water and chilled
water systems to control the flow of water in the
system.
They are designed and built for long term
operation under arduous conditions of high
temperatures and rapid pressure fluctuations.
Valve / Actuator
Configuration
serviceability.
Available as either rotary-shoe or paddle types,
H Series valves offer the specifier and installer
whatever he decides is appropriate for the job.
The range caters for virtually all needs, ie. 2port, 3-port diverter or mid-position, metric sizes
15mm, 22mm and 28mm with copper
compression fittings and imperial sizes 1/2", 3/4"
and 1" BSP threaded.
These valves, based on traditional designs but
improved by on-going product development,
are second to none in terms of robustness,
dependability and operating efficiency. Higherthan-usual test pressures, support bearings at
both top and bottom of the shoe and paddle
spindles and tough polycarbonate actuator
covers are some of the features which ensure
this, and yet there is no price premium for the
added quality.
Total choice of valves to suit every
installation and preference
H Series valves are normally purchased as
separate valve bodies and actuators, but are
available as sets for some of the more popular
combinations, see Product Selection Guide for
details. Actuators are fitted to the valve bodies
on site for convenience of installation and
Easy installation and wiring
Suitable for heating and cooling
applications
Proven reliability
Long working life
Actuators and valve bodies supplied
separately for convenience
Industry-standard fittings and wiring
colours
Robust construction
Low cost
BROWN
BROWN
2-PORT
VALVES
BLUE
BLUE
BROWN
BROWN
L
BLUE
3-PORT
DIVERTER
VALVES
BLUE
BROWN
BROWN
BLUE
GREY
B
AB
BROWN
L
AB
AB
3-PORT
MID-POSITION
VALVES
BLUE
N
L
GREY
A
B
AB
L
BLUE
N
L
N
L
GREY
A
B
AB
Data Sheet
H Series Motorised Valves
Ordering Codes
Order Code
Size
Max. Diff Max. Work.
Max.
Kv
Pressure Pressure Operating
(m3/hr)
(Bar)
(Bar)
Temp (C)
Description
PADDLE VALVES - 2 PORT
HPV15B
15mm Internal compression
HPV22B
22mm External compression
HPV28B
28mm External compression
HPV0.5B
BSP
1/2"
HPV0.75B
BSP
3/4"
HPV1.0B
BSP
1"
PADDLE VALVES - 3 PORT
HSV3B15
15mm Internal compression
HSV3B22
22mm External compression
HSV3B28
28mm External compression
HSV3B0.5
1/2"
BSP
HSV3B0.75
3/4"
BSP
HSV3B1.0
1"
BSP
SHOE VALVES - 2 PORT
HPV15
15mm Internal compression
HPV22
22mm External compression
HPV28
28mm Internal compression
BSP
1/2"
HPV0.5
BSP
3/4"
HPV0.75
BSP
1"
HPV1.0
SHOE VALVE - 3 PORT
HSV3
22mm
External compression
3.0
5.8
7.9
3.0
5.8
7.9
1.0
1.0
0.7
1.0
1.0
0.7
10.0
95
3.0
6.1
7.9
3.0
6.1
7.9
1.0
1.0
0.7
1.0
1.0
0.7
10.0
95
3.3
8.2
15.0
3.3
8.2
15.0
1.0
1.0
0.7
1.0
1.0
0.7
10
95
6.8
1.0
10.0
95
NOTE: All valve bodies can be used in chilled water applications using 60/40% Glycol/Water mix.
Actuator Ordering Codes
Order Code
Specifications
Aux. Sw.
Details
Description
HPA2N
HPA2
HPA2C
HSA3ND
HSA3D
HSA3CD
2 port, N.C, spring return actuator
2 port, N.C, spring return actuator
2 port, N.C, spring return actuator
3 port, diverter valve actuator
3 port, diverter valve actuator
3 port, diverter valve actuator
HSA3
3 port, mid-position valve actuator
VALVE BODY SPECIFICATIONS
Body and Trims
Top Seal Gasket
Spindle O Ring Seals
Paddle Material (Paddle type)
Shoe Material (Shoe type)
HSA3
Brown/White
(HTG call)
HSA3CD
Brown (L)
M
M
Brown (L)
Blue (N)
White
Orange
Diverter
(standard)
Brown (L)
Blue (N)
Orange
Grey
Grey (HWS sat.)
HSA3ND
Blue (N)
Orange (HWS call)
Mid-Position
(standard)
O
O
O
220/240Vac, 50/60Hz
6 watts
45C
< 35 seconds
< 20 seconds
3 (1) A, 220/240Vac, 50/60Hz
IP40
HSA3D
Blue (N)
O
O
O
Hot stamped or die cast brass
THK-Ethylene propylene
Flurobon Fluoro-elastomer
Nitrile elastomer
Carbon filled PTFE
VALVE ACTUATOR SPECIFICATIONS
Voltage Rating *
Maximum Power Consumption
Maximum Ambient Temperature
Opening Time
Closing Time
Auxiliary Switch Rating (if fitted)
Enclosure Rating
* 24V and 110V versions available on special order.
Actuator Wiring Detail
(Three-Port)
None
SPST
SPDT
None
SPST
SPDT
SPST
(int. linked)
Valve Body Compatibility
HSV...
HSV...
3 Port as
3 Port as
Diverter Mid-Positio
HPV...
2 Port
Grey
Diverter
(optional)
Diverter
(optional)
Data Sheet
Actuator Wiring Detail
(Two-Port)
H Series Motorised Valves
HPA2C
HPA2N
HPA2
Brown (L)
Blue (N)
Blue (N)
Brown (L)
Orange
Grey
Blue (N)
White
Orange
Grey
(standard)
(optional)
(optional)
Sizing
VALVE SIZING GRAPH
The pressure drop across an H Series valve can
be determined from the Kv diagram above.
The chart, which shows the Kv values of all H
Series valves as diagonal lines, can be used to
determine pressure drop when the flow rate is
known (m3/h). It can also be used to read off
pressure drop values when the heating load (kW)
is known.
A vertical axis, scaled in kW for systems working at
temperature differences of either 11C or 20C, is
included in the chart.
Alternatively, pressure drop values can be
calculated using the formula:DP =
Where:-
()
Q
Kv
Flow rate (m3/h)
Kv =
Co-efficient of Flow (m3/h)
DP =
Pressure Drop across the
valve (bar)
Examples of chart use:
1)To determine the pressure drop across a
22mm. 3-port paddle valve (Kv = 6.1), at a flow
rate of 2.0 m3/h, follow the horizontal line from the
2.0 m3/h point on the left-hand vertical axis until it
crosses the diagonal 6.1 Kv line.
By following a vertical line downwards from this
point, a pressure drop of 0.11 bar can be read off
the horizontal axis at the base of the chart.
2)To determine the pressure drop across a
22mm. 2-port paddle valve (Kv = 5.8), for a 20
kW heating load in a system working at an 11C
temperature difference, follow the horizontal line
from the 20 kW point on the appropriate righthand vertical axis until it crosses the diagonal 5.8
Kv line.
By following a vertical line downwards from this
point, a pressure drop of 0.072 bar can be read
off the horizontal axis at the base of the chart.
Kv values of each valve type and size are shown in
the table opposite.
3
Data Sheet
H Series Motorised Valves
Dimensions
3-PORT
86.6
63.0
73.4
73.4
123
123
123
123
123
123
HW
CH
OFFSET 8MM
PADDLE
VALVES
SHOE
VALVES
2-PORT
73.4
86.6
73.4
1234
1234
1234
1234
63.0
A
1234
1234
1234
1234
D
B
C
OFFSET 8MM
Valve Body
Connections
Valve Body
Connections
PADDLE VALVES
83.5
24.1
SHOE VALVES
Two-Port
Two-Port
HPV15B
15mm Int. Comp
90.6
17.5 103.0 27.6 HPV15
15mm Int. Comp
87.1
13.8
HPV22B
22mm Ext. Comp
90.6
17.5 112.5 27.6 HPV22
22mm Ext. Comp
90.4
17.5 110.0 27.4
HPV28B
28mm Ext. Comp
90.6
22.4 128.0 27.6 HPV28
28mm Int. Comp
93.6
24.3 108.0 30.6
HPV0.5B
" BSP
90.6
17.5
86.0
27.6 HPV0.5
" BSP
87.1
14.0
65.9
24.1
HPV0.75B
" BSP
90.6
19.0
94.0
27.6 HPV0.75
" BSP
90.5
17.0
77.5
27.5
HPV1.0B
1" BSP
90.6
19.0
97.0
27.6 HPV1.0
1" BSP
93.6
20.6
87.3
30.6
22mm Ext. Comp
90.7
56.0 110.0 27.7
Three-Port
Three-Port
HSV3B15
15mm Int. Comp
90.6
54.0 107.5 27.6 HSV3
HSV3B22
22mm Ext. Comp
90.6
57.0 112.5 27.6
HSV3B28
28mm Ext. Comp
90.6
71.5 128.0 27.6
HSV3B0.5
27.6 Valve bodies and Actuators may be purchased separately
for ease of installation and serviceability, or in convenient
sets. Actuators are fitted to valve bodies on site.
" BSP
90.6
45.5
HSV3B0.75 " BSP
90.6
50.0 100.0 27.6
HSV3B1.0
90.6
52.0 104.0 27.6
1" BSP
91.0
All dimensions are shown in millimetres.
Danfoss Randall can accept no responsibility for possible errors in catalogues, brochures and other printed material, and reserves the right to alter
its products without notice. This also applies to products already on order provided that such alterations can be made without subsequent changes
being necessary in specifications already agreed.
Danfoss Randall Limited,
Ampthill Road,
Bedford, MK42 9ER
Telephone: (01234) 364621 Fax: (01234) 219705
Email: danfossrandall@danfoss.com
Website: www.danfoss-randall.co.uk
4
Part No: 226
Iss.6.
12/01
