Valves + Systems
Total Hydronic Balancing
Comfort and Energy Savings for Heating and Cooling Systems
Valves + Systems
German Engineered
Quality and Value
Application Guides
Electrothermal Actuators
Non Electric Actuators
Distribution
Pressure Activated Bypass
Stations
Zone Valves
Balancing Valves
Thermostatic
Radiator Valves
Diverting and
Mixing Valves
Products and Applications
Energy Saving Integrated Packages
Mechanical Systems for the 21st Century
Energy Efficient Hydronic Heating & Cooling
Balancing Energy
Solar Energy
Award Winning Quality and Value
Administration Building
in Melbourne, Australia
European Parliament
In Strasbourg, France
Oventrop‘s Profile
Founded in 1851
Owned by the same family today
Quality engineering and manufacturing
Products distributed all over the world
Main factory in Olsberg, Germany
8 Sub Corporations
Oventrop Corporation US Since 2004
East Granby, CT USA
Production Facility in Brilon
Design Awards
Awards for Excellence
Good design means
excellent quality and good value
North Rhine Westfalia
Industrial Forum Design
Hannover
Design Centre Essen
German Institute for Copper
Berlin
Pragotherm Prague
Design Laboratory Hamburg
Design Museum London
Oventrop Radiator Valves and
Thermostatic Operators
Unique and Quality Components
Oventrop Radiator Valves and
Thermostatic Operators
Liquid Filled Diaphram
Thermostatic Operator
Radiator Valve
Valve Insert
Liquid filled diaphram
• hand calibrated
Oventrop Radiator Valves and
Thermostatic Operators
Expand- Close
Contract- Open
Thermostat
Radiator
Valve
Connection
connection
M30 x 1.5
Connection
M30 x 1.5
Closed- no flow
Open- modulating flow
Oventrop Radiator Valves and
Thermostatic Operators
Thermostatic Operators
• Standard model
Uni XH and Uni XD
• Appearance
Uni LH
• Compact
Vindo
• Slow Reaction
Uni DH
• Exclusive
Uni SH
• Lockshield
Uni LBH
• Electronic
R-Tronic
• Remote Control
Uni FH and Uni FD
Radiator Valve Thermostats
Modulating Thermostat Control
with liquid sensor
Thermostat Uni XH
threaded model
For Oventrop radiator valves
M 30 x 1.5 threaded valves
M 30 x 1.0 threaded valves
Thermostat Uni XD
squeeze on model
for Danfoss valves
and Buderus panel radiators
Series RA squeeze connections
Temperature setting may be limited or
locked
with remote
sensor
6 1/2 ft. or
16 ft.
0 setting = positive off
X setting = freeze protection
Temperature range 42 - 84ºF
#3 setting = 68º ºF
Thermostats
High/Low Temp Guides
Collar nut
Settings Base
Numbers
represents 8ºF
each increment
Minor Graduations
represents 1.8ºF
Setting 3, 68ºF
Memory Disc
1 = 53ºF
2 = 60ºF
3 = 68ºF 0 = complete shut off found on thermostats with symbol
4 = 75ºF
 = Frost protection symbol, valve opens automatically
5 = 82ºF
when room reaches 44
Radiator Valve Thermostats
Modulating Thermostat Control
with liquid sensor
Thermostat Uni LH
For Oventrop radiator valves
M 30 x 1.5 threaded valves
M 30 x 1.0 threaded valves
Sleek appearance
Hidden Locks for min/max settings
adjustable only by removing ring
requires ring removal tool to set locks
Powder White
or Chrome
for Series E
Radiator Valves
Radiator Valve Thermostats
Modulating Thermostat Control
with liquid sensor
Thermostat
Vindo
M 30 x 1.5 threaded
or
Squeeze connection
Sleek appearance
Economical
Benefits
• Compact
• lockable
• limitable
Radiator Valve Thermostats
Thermostat with wax Sensor
Thermostat Uni DH
M 30 x 1.5 threaded valve
Best for slow reaction time
Great for steam applications
Temperature
setting may be
limited or locked.
Wax filled sensor reacts slower
than liquid filled sensors
Good Match for Steam Systems
with remote sensor
6 1/2 ft.
Radiator Valve Thermostats
Modulating Thermostat Control
with liquid sensor
Thermostat Uni SH
M 30 x 1.5 threaded valve
Match with Series E Radiator Valves
• Perfect thermostat for towel bars
• Sleek appearance
Chrome or
White Ring
Radiator Valve Thermostats
Modulating Thermostat Control
with liquid sensor
Thermostat Uni LHB
For Oventrop radiator valves
M 30 x 1.5 threaded valves
M 30 x 1.0 threaded valve
Lockshield Configuration
Integrated anti-theft Device
Increased Flextional Strength
Accessory: Setting Key
to set the nominal temperature value at the thermostat
Radiator Valve Thermostats
Electronic Radiator Control
R-Tronic
Programmable electronic
controller for individual room
For Oventrop radiator valves
M 30 x 1.5 threaded valves
Adjustable Timed program
Battery operated
Child-proof lock, frost protection
Auto-off with open window function
Temperature range: 41 - 86 °F
Radiator Valve Thermostats
Thermostats with Remote Control
Thermostat Uni FH
white model
For Oventrop radiator valves
M 30 x 1.5 threaded valves
6 1/2 ft. capillary
16 ft. capillary
33 ft capillary
Thermostat Uni FD
white model
Wall thermostats are
better for control of comfort
and ease of adjustment
Radiators that are placed within
enclosures need a remote thermostat
to eliminate undue cycling
squeeze on connection
for Danfoss valves
and Buderus panel radiators
Series RA squeeze connections
6 1/2 ft. capillary
Radiator Valve Thermostats
Thermostats with Remote Control
and remote sensor
Thermostat Uni LH
white model with remote sensor
M 30 x 1.5 threaded valves
6 1/2 ft. capillary
16 ft. capillary
Wall thermostats are
better for control of comfort
and ease of adjustment
Radiators that are placed within
enclosures need a remote thermostat
to eliminate undue cycling
Remote sensor allows for
average temperature reading
at sensor and wall thermostat
Valves for Thermostats
Series AZ
Hot Water Radiator Valve
• M 30 x 1.5 threaded
30mm diameter
1.5 thread pitch
• brass, nickel plated
• highest Cv at 1.28
These valves can be used with 4 types of actuators
1. Manual adjuster (included)
2. Thermostatic (non-electric)
3. Thermostatic remote capillary (non-electric)
4. 24 V electric for on/off control
Valves for Thermostats
Series AZ
Manual adjuster
Valve Patterns
Angle Pattern Valve
Sizes: 1/2, 3/4, 1, 1-1/4 inch
Straight Pattern Valve
Sizes: 1/2, 3/4, 1, 1-1/4 inch
Reverse Angle Pattern Angle
Sizes: 1/2, 3/4 inch
Valves for Thermostats
Series AZ
Valve Patterns
Double Angle Pattern:
Thermostat extends from
valve forward horizontally
Double Angle Pattern Left
1/2 inch
Double Angle Pattern Right
1/2 inch
Valves for Thermostats
Service Valves for Return Side of Radiator
Combi 2
Combi 2
Balancing and shut off
Combi 4
NPT x NPT
SWT x SWT
Sizes in 1/2 and 3/4 inch
Combi 4
Balancing with memory,
filling, draining, and shut off
Nickel Plated
Angle and Straight Pattern
NPT x NPT
Sizes in 1/2 and 3/4 inch
Thermostatic operator
with wall thermostat
and remote sensor
Valves for Thermostats
Exclusive Designer Series E
Perfect for towel bar warmers
Radiator Valve
Series E
• M 30 x 1.5 threaded
• angle or straight pattern
• chrome or white
Include return side
Service valve
Combi E
for radiator or towel rack
matching appearance
Available in 1/2 inch
isolating, balancing
fill and drain
Valves for Thermostats
Thermostat location
Series E
Valve Patterns
1/2 inch valves
Angle Pattern Valve
Double Angle Pattern Right
Straight Pattern Valve
Double Angle Pattern Left
Valves for Thermostats
Return Side Service Valve
Combi E
Valve Patterns
1/2 inch valves
Angle Pattern Valve
Straight Pattern Valve
Valves for Thermostats
Series S
for low pressure steam
max. 15 psi
Steam Radiator Valve
Includes
Stainless Steel Cartridge
long service life
• Competitors such as Danfoss use EPDM valve seats for both
hot water and steam radiators valves.
• Steam and high temperatures corrode EPDM over time.
• A Stainless Steel valve insert should be used in steam systems.
Valves for Thermostats
Series S (Steam)
Valve Patterns
Angle Pattern Valve
Sizes: 1/2, 3/4, 1, 1-1/4 inch
Straight Pattern Valve
Sizes: 1/2, 3/4, 1, 1-1/4 inch
Reverse Angle Pattern Angle
Sizes: 1/2, 3/4 inch
Valves for Thermostats
airvent port
One-pipe Steam
Steam Radiator Valve
Includes
Stainless Steel Cartridge
long service life
Room Thermostat Control for a one pipe steam radiator systems
The 1/8 inch air vent on a one pipe steam radiator can be removed
and replaced with a one pipe steam radiator valve
The air vent is reinstalled vertically into the one pipe radiator valve.
Oventrop Radiator Valves
One Pipe Steam Radiator
Valve and Thermostat
Air vent
1/8 inch NPT
into radiator vent
Oventrop
One-pipe Steam
with wax sensor
Thermostat UNI DH
Valves for Thermostats
Convert One Pipe Steam to Hot Water
One Pipe Radiator
Injection Valves
1/2 inch to radiator
1/2 copper or pex
Verticle insertion tube
Horizontal insertion tube
most popular
• Extend injection water tube into radiator with copper or pex tubing
• Cut in an airvent at top of radiator when converting radiator
Oventrop Radiator Valves
One Pipe Radiator Injection Valve
with constant bypass and shut off
Cut in radiator vent
Convert steam radiator to
two pipe hot water
Panel Radiator Valves
Muliflex Fittings
for integrated panel radiators
Uni XH
with trim piece
Designed for
Buderus panel radiators
DiaNorm panel radiators
Multiflex
Vindo
R 20 connections
Multiflex fitting
Panel Radiator Valves
Multiflex fittings
Diverter Valves for one pipe systems
for series loop systems
radiators piped in series
Connection 1/2 x 3/4 inch thread
90 degree angle
straight pass
Panel Radiator Valves
2- pipe systems
isolating valves
pipe radiators in parallel
90 degree angle
Multiflex fittings
Connection
1/2 x 3/4 inch thread
straight pass
Compression Fittings for Multiflex
Transition to Pex or Copper
Assessories
Vandal Guard
Protects from
thermostat removal
Right Angle Adapter
for threaded and squeeze
connection
Valve Inserts
Insert Type "AZ"
• Function:
– Standard valve insert with hot water valves.
This valve insert has the highest Cv of all
inserts.
• Cv value :
– 1.28
• Application:
– Standard for most radiator valve applications
Valve Inserts
Insert Type "AV 6"
• Function:
Key
for flow rate setting
AV 6 inserts
– Adjustable Cv value insert, allows technician
to balance flow rate with six different settings.
• Cv value :
– 0.75
• Application:
– This insert is used where radiator return
balancing can not be used.
Valve Inserts
Insert Type "ADV 6"
Landlord model
• Function:
Key
for flow rate setting
AV 6 inserts
– Adjustable Cv value insert with six settings.
– If thermostat is removed from the valve the flow will
be restricted to 5% of normal flow.
• Cv value :
– 0.75
• Application:
– This insert is used where radiator return balancing
can not be used and vandalism is an issue.
Valve Inserts
Insert Type "Stainless Steel Seat"
• Function:
– This insert has a stainless steel valve seat for
steam applications.
• Cv value :
– 0.70
• Application:
– This insert is used for steam applications.
Valve Inserts
Insert Type "Special"
• Function:
– This insert has a low Cv value.
• Cv value :
– 0.52
• Application:
– The low Cv value is used to correct reversed
supply and return hookup.
Valve Inserts
Insert Type "TM"
• Function:
– This insert is has a maximum pressure
differential of up to 40 psi.
• Cv value:
1/2 inch- 1.1
1 inch- 1.3
3/4 inch- 1.2
1-1/4 inch- 1.6
• Application:
– Used for commercial baseboard applications.
Demo-Bloc
Demo-Bloc
Radiator
valve
Special tool for
replacing Oventrop
valve inserts under
working conditions
drain port
Step 1: screw demo-bloc into
radiator valve
Step 2: remove valve insert with
demo-bloc stem handle, open drain
port for stem handle retraction
Step 3: close demo-bloc ball
valve, remove stem with attached
valve insert, remove valve insert
Valve insert
Step 4: Install new valve stem back into radiator valve, remove demo-bloc
Valves for Thermostats
Custom to US market
Application
Non electric
Baseboard
control
Zone / Radiator Valves
1/2” and 3/4”
SWT x SWT
• Angle Pattern
• Straight Pattern
• Reverse angle pattern
#1 selling non electric valve
for baseboard control
Valves for Thermostats
Valve Patterns
Zone / Radiator Valves
Angle Pattern Valve
Sizes: 1/2, 3/4 inch
Straight Pattern Valve
Sizes: 1/2, 3/4 inch
Reverse Angle Pattern Angle
Sizes: 1/2, 3/4 inch
Non Electric Wall Thermostats
Thermostat Uni LH
6 1/2 ft. capillary
Application
Non electric
baseboard
control
16 ft. capillary
33 ft capillary
Wall Thermostat
For ease and
convenient control
Oventrop Actuators
24VAC zone valve model
2 models
• with normally open actuator
• with normally closed actuator
Application
zone valves
baseboards
Proportional
Temperature Control
0 - 10 v proportional signal actuator
Better temperature control
Comes separately
Electrothermal Actuators
24VAC on/off
Models:
1 - Normally closed, with end switch
2 - Normally closed
3 - Normally open
M30x1.5 threads standard
Slow acting to prevent water hammer
Low profile, compact design
24V, 2 watt
Adapter for M30x1.0 threads
For use with:
Diverting valve
Radiator valves
Manifolds
Electromotive Actuators
Proportional Actuator
24 VAC
Proportional actuator
for temperature mixing and flow control
For use with:
• Three-way mixing valve
• Radiator valves
• Manifolds
0 – 10v input signal
Valve Thermostats
Non-electric actuator
Proportional Regulator
Non-electric actuator with strap on sensor
and transfer unit.
For use with two- and three-way valves.
The control range may be limited and locked.
Connection thread M 30 x 1.5
Handwheel
scale
1
2
3
4
5
6
7
Temperature
setting in F
86
95
104
113
122
131
140
Oventrop Zone Valve
24 VAC Zone Valve
24 VAC to open
2 wire actuator
with manual lever
3.3 CV value
Zone valve motor can be
attached to M30 x 1.5
Oventrop radiator valve
Great Hydronic Balancing
Energy Savings and Indoor Comfort
Oventrop Balancing Valves
Maximize energy savings and attain a comfortable indoor climate
with a comprehensive approach to balanced water flow.
The flow of energy through a hydronic system must be balanced
to optimize comfort and increase the efficiency of the HVAC system.
Oventrop high quality balancing valves
are an essential element of the
total hydronic heating or cooling system.