Angle
V305
MARS Series TRV Body
TRV BODY WITH STROKE LIMITATION, EXTERNAL THREADS
PRODUCT DATA
Application
Thermostatic radiator valve bodies (TRV bodies) are fitted on
the supply or return of radiators or heat exchangers. Together
with a radiator thermostat, for example the Thera-4, they
control the room temperature by regulating the flow of hot water
into the radiator. The temperature of different rooms is
controlled individually and energy is saved.
TRV bodies of this type have quiet operation and are fitted to
the supply or return of radiators on two-pipe systems with medium flow rates.
The valve insert can be replaced while the system is running
and without draining using the service tool (see ‘Accessories’).
TRV bodies of this type are suitable for
• Honeywell radiator thermostats with M30 x 1.5 connection
• Certain Honeywell MT4 actuators
• Honeywell Hometronic HR80 and Roomtronic HR40 actuators
Straight
The MARS series is supplied with a protection cap. To convert
the MARS series to thermostatic operation the protection cap is
replaced by a radiator thermostat, e.g. Honeywell Thera-4.
Design
The thermostatic radiator valve bodies consist of:
• Valve housing PN10, DN10 or DN15 with
• M22 x 1.5 external thread connection on inlet
• external thread connection with union-nut and radiator tailpiece on outlet
• Pre-settable valve insert
• Protection cap
Materials
• Valve housing made of nickel-plated brass
• Valve insert made of brass with EPDM O-rings and soft seals
and stainless steel spindle
• Protection cap made of plastic
• Union-nut and tailpiece made of nickel plated brass with
EPDM O-ring
Features
• Supplied with protection cap
• Bi-directional flow
• Pre-settable by stroke limitation
• For 1- and 2-pipe systems
• Standard M30 x 1.5 thermostat connection
• Connection to all types of pipework DN10 to DN15
• Quiet operation
• Tail piece with integrated O-ring
Specifications
Medium Heating water, water quality to
VDI2035
ph-value 8...9.5
Operating temperature max. 120°C (248°F)
Operating pressure PN10
Differential pressure max. 0.2 bar (2.9 psi)
recommended for quiet operation
k
(cv)-values DN10 1.70 (1.99)
vs
DN15 1.85 (2.16)
Thermostat connection M30 x 1.5
Closing dimension 11.5 mm
Stroke 2.5
Honeywell y Subject to change EN0H-2116GE25 R1106
V305 - MARS SERIES TRV BODY
Function
Thermostatic radiator valves enable individual control of room
temperature and thus save energy.
The TRV body is controlled by the radiator thermostat. Air from
the room passing over the sensor of the radiator thermostat
causes the sensor to expand when the temperature rises. The
sensor acts onto the valve spindle and this causes the TRV
body to close. When the temperature falls the sensor contracts
and the spring-loaded valve spindle is opened. The TRV opens
in proportion to the temperature of the sensor. Only the amount
Please Note:
• To avoid stone deposit and corrosion the composition of the
medium should conform with VDI-Guideline 2035
• Additives have to be suitable for EPDM sealings
• System has to be flushed thoroughly before initial operation
with all valves fully open
• Any complaints or costs resulting from non-compliance with
above rules will not be accepted by Honeywell
• Please contact us if you should have any special requirements or needs
of water required to maintain the room temperature set on the
radiator thermostat can flow into the radiator.
Setting procedure
Turn the pre-setting screw until stop. Mark position of screwdriver slot as reference point. Then turn anticlockwise according to
reference figure obtained from the pressure drop chart.
Reference figure 10 corresponds to 1 turn.
Reference figure 20 corresponds to 2 turns.
flush
Screwdriver slot for
adjustment of
presetting screw
Dimensions and Ordering Information
2.5
h
d1
l1
M22x1.5
Versions DN kvs-values
Angle (Fig. 1) 10 1.70
Straight (Fig. 2) 10 1.70
NOTE: All dimensions in mm unless stated otherwise.
l
Fig. 1. Angle Fig. 2. Straight
Table 1. Available versions and OS-Nos (OS=Ordering System)
d1 d2 I1 l h
3
/8" — 20 49 21.5 V305ESLGB10
15 1.85
15 1.85
1
/2" — 23 53 21.5 V305ESLGB15
3
/8" — 25 75 23 V305DSLGB10
1
/2" — 29 82 23 V305DSLGB15
h
Dimensions
Position of pre-setting
screw at delivery
2.5
d1
M22x1.5
l1
l
OS-No.
EN0H-2116GE25 R1106 2 Honeywell y Subject to change
Accessories
Connections
Soft connection for copper pipe
M22 x 1.5 x 10 mm VA720B1000
M22 x 1.5 x 12 mm VA72B01200
M22 x 1.5 x 14 mm VA720B1400
M22 x 1.5 x 15 mm VA720B1500
M22 x 1.5 x 16 mm VA720B1600
Connection for PE-X pipe
M22 x 1.5 x 12 x 1.1 mm VA721B1211
M22 x 1.5 x 12 x 2 mm VA721B1220
M22 x 1.5 x 14 x 2 mm VA721B1420
M22 x 1.5 x 15 x 2.5 mm VA721B1525
M22 x 1.5 x 16 x 1.5 mm VA721B1615
M22 x 1.5 x 16 x 2 mm VA721B1620
M22 x 1.5 x 16 x 2.2 mm VA721B1622
Connection for multilayer pipe
M22 x 1.5 x 14 x 2 mm VA722B1420
M22 x 1.5 x 16 x 2 mm VA722B1620
M22 x 1.5 x 16 x 2.25 mm VA722B1623
V305 - MARS SERIES TRV BODY
Service Parts
Valve insert
VS1200SLGB01
Handwheel
Pack of 10 pieces H100-1/2D
Pressure cap – for shutting off valves on radiator oulet
for valves DN10 (3/8") VA2202A010
for valves DN15 (1/2") VA2202A015
Sealing ring for pressure cap
for valves DN10 (3/8") VA5090A010
for valves DN15 (1/2") VA5090A015
Service tool to replace valve insert
for all sizes VA8200A001
Honeywell y Subject to change 3 EN0H-2116GE25 R1106
V305 - MARS SERIES TRV BODY
Flow Diagram
1K 2K 3K
Pre-setting 1 2 3 4 5 7 17.5 = open = kvs
kvs(cv)-values for DN10 0.25 (0.29) 0.50 (0.59) 0.70 (0.82) 1.00 (1.17) 1.25 (1.46) 1.50 (1.76) 1.70 (1.95)
kvs(cv)-values for DN15 0.25 (0.29) 0.50 (0.59) 0.70 (0.82) 1.00 (1.17) 1.25 (1.46) 1.50 (1.76) 1.85 (2.16)
NOTE: Pre-settings above 4 are unsuitable for operation with radiator thermostats and should only be used with actuators (open/
close operation).
Automation and Control Solutions
Honeywell GmbH
Hardhofweg
74821 Mosbach, Germany
Phone: +49 (6261) 810
Fax: +49 (6261) 81393
www.honeywell.com
EN0H-2116GE25 R1106
November 2006
© 2006 Honeywell International Inc.
Subject to change • All rights reserved
Manufactured for and on behalf of the Enviro nmental and Combustion
Controls Division of Honeywell Technologies Sàrl, Ecublens,
Route du Bois 37, Switzerland or by its Authorized Representative.
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