SG160S
Safety group
with interchangeable safety valve insert
Product specification sheet
Application
Safety groups of this type are used to protect pressurised water
heaters according to the requirements of DIN 4753, Part 1,
DIN 1988 and DIN EN1488.
They are compact appliances which incorporate all the necessary
safety devices such as check valve, shutoff valves, test point and
diaphragm type safety valve in one unit.
The safety valve protects the downstream cylinder, pressure
vessel etc. by automatically opening when excess pressure
occurs. The check valve prevents back pressure, backflow and
back syphonage of water from the hot water unit.
Special Features
• DIN/DVGW-approved
• Fully approved for noise level protection to class 1
• Replacement insert tested to TRD 721
• Easy venting
• Meets KTW recommendations for potable water
Construction
The safety group comprises:
• Housing with G
• Connections (versions AA, AB and AC)
• Shutoff valves
• Removable check valve
• Approved safety valve exchange insert
• Drain connector
• Connection for expansion vessel
Materials
• Dezincification resistant brass housing
• Brass threaded connections
• High grade synthetic material shutoff valves, test socket,
check valve, safety valve insert and discharge tundish
• Fibre-reinforced NBR diaphragm
• NBR seals
1
/4" test socket on both sides
Range of Application
For closed water heaters in compliance with DIN 4753, Part 1 and
DIN 1988
Tested to TRD 721 for pressure range 1.0 bar to 10.0 bar.
Medium Water
Operating pressure Maximum at least below 20 % opening
pressure of safety
Technical Data
Installation position Horizontal and vertical
Opening pressure Set by manufacturer at 6.0, 8.0 or 10.0 bar
Special settings between 1.0 bar and
10.0 bar are also available
Subsequent alteration of the setting is not
permitted and is impossible without
destroying the security cap
Operating temperature
Connection size
Max. 40 °C
1
/2" - 1"
EN0H-1346GE23 R0807 • Subject to change
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SG160S Safety group
Method of Operation
Safety groups of this type combine check valve, shutoff valves,
test point and diaphragm type safety valves in one appliance.
Flow first passes through the check valve and this flow holds the
valve disc in the open position against the force of a spring.
The downstream safety valve is a direct operating safety valve.
That is, the opening force operates against the force of a spring.
The shutoff valves enable the check valve to be checked and
serviced.
Options
SG160S- ... AA = With threaded male connections, 6.0 bar
SG160S- ... AB = With threaded male connections, 8.0 bar
SG160S- ... AC = With threaded male connections, 10.0 bar
SG160S- ... EA = Without fittings, set pressure 6.0 bar
SG160S- ... EB = Without fittings, set pressure 8.0 bar
SG160S- ... EC = Without fittings, set pressure 10.0 bar
Connection size
Connection size R
Nominal size R
Weight Option A
Option E
approx.
kg
1
/2"
3
/4"
1.64
-
3
/4"1"
3
/4"
1.70
1.40
3
/4"
1.96
1.57
Drain external -ø (mm) D 40 40 40
Dimensions (mm)
l
1l2
178
L
H
h
89
68.5
124.5
105.5
186
93
72.5
124.5
105.5
204
102
81.5
124.5
105.5
For water heaters with capacity (litres) 200 1000 1000
Safety valve
Approval numbers
TÜV · SV · ..* - 700 · (
TÜV · SV · ..* - 617 · (
1
/2",3/4", 1") · W · p (6 bar)
1
/2",3/4", 1") · W · p (8, 10 bar)
DIN/DVGW Approval No. NW-6311 BP 0068
..* valid approval No.
Accessories
MAG160S Expansion vessel without connection set
MAG160S- 12
- 18
Connection set with plug incl. draining
cock, adapter and flow controller
MAG160S-12 - volume 12 Liter
MAG160S
MAG160S-12/-18
MAG160S-18 - volume 18 Liter
M07M Pressure gauge
Housing diameter 63 mm, rear connection thread
1
G
6
4
8
2
r
ba
0
10
/4". Ranges: 0 - 4, 0 - 10, 0 - 16 or 0 - 25 bar.
Please indicate upper value of pressure range when
ordering
VSTM
12 www.honeywell.com
M07M
VST06-A VST06-B
VSTM Connection for pressure gauge
VST06-A Connection set
Threaded connections
VST06-B Connection set
Solder connections
EN0H-1346GE23 R0807 • Subject to change
Installation Example
SG160S Safety group
Arrangement of the safety
group in the same room
as the water heater
Installation Guidelines
• Safety group must be fitted in the cold water supply to the hot
water storage unit
• Installation in horizontal or vertical pipeline possible
• The installation must be carried out so that:
o There are no shutoff valves or fittings, narrowing of the
pipework or strainers between the water heater and the
safety valve
o Good access is provided for service and maintenance
o The safety valve is fitted above the top of the water heater
to avoid the need for draining down when exchanging the
safety valve insert
• If there is no drainage facility in the room where the heater is
installed, then the safety valve may be fitted in an adjacent
area. DIN 1988, part 2 is to be observed
Arrangement of the safety
group with an expansion
vessel in the same room as
the water heater
Arrangement of the safety group
"corner angle", where no drainage is
available in same room as the water
heater
Typical Applications
Safety groups of this type are installed in accordance with their
specification upstream of water heaters.
The following are some typical applications:
• Central hot water supply systems
• Hot water storage units
Instandhaltung
In accordance with DIN 1988, Part 8, the following operations should be carried out regularly. A planned maintenance scheme is
recommended.
Operation Interval Carried out by
Inspection Check valve: Check operation by opening the test point and closing the
Annually User
lower shutoff valve.
Safety valve: Check operation as follows: With the system operating,
Every six months User or specialist
open the venting device. The resulting water flow must fully drain away.
When the ventil is released,the valve must fully close.
Maintenance Safety valve: If a malfunction occurs,this may be cured by repeated
Annually Specialist
manual opening and closing of the valve. If this method does not
EN0H-1346GE23 R0807 • Subject to change
succeed, then an overhaul of the valve will be necessary.
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SG160S Safety group
Spare Parts
Safety group SG160S, from 2004 onwards
1
No. Description Dimension Part No.
1 Safety valve
exchange insert
1
Approval No. - TÜV · SV · ..* - 617 -
/2"+3/4"·W·p
Approval No. - TÜV · SV · ..* - 617 - 1" · W · p
3
Approval No. - TÜV · SV · ..* - 700 -
1
/2"+3/4"·W·p
Approval No. - TÜV · SV · ..* - 700 - 1" · W · p
6 bar
5
8 bar
1
/2" A152-1/2AA
3
/4" A152-3/4AA
1" A152-1AA
1
/2" A152-1/2AB
3
/4" A152-3/4AB
1" A152-1AB
10 bar
1
/2" A152-1/2AC
3
/4" A152-3/4AC
1" A152-1AC
..* valid approval No.
2
2
2 Blanking plug
with O-ring R
1
/4"
(5 pcs.)
3 Discharge tundish
4 Check valve disc
1
/2" - 1" TA160S
3
/4" 2110200
S06K-1/4
complete
5 Sealing ring
4
(packs of 10)
1
/2" 0901443
3
/4" 0901444
1" 0901445
Automation and Control Solutions
Honeywell GmbH
Hardhofweg
D-74821 Mosbach
Phone: (49) 6261 810
Fax: (49) 6261 81309
http://europe.hbc.honeywell.com
www.honeywell.com
Manufactured for and on behalf of the
Environmental and Combustion Controls Division
of Honeywell Technologies Sàrl, Ecublens, Route
du Bois 37, Switzerland by its Authorised Representative Honeywell GmbH
EN0H-1346GE23 R0807
Subject to change without notice
© 2007 Honeywell GmbH
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