HEROSE 0681 Series User manual

HEROSE GMBH ARMATUREN UND METALLE
Operating instructions
Angle type safety valve
Type 0681X/06820/0685X

Operating instructions
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READ CAREFULLY BEFORE USE! RETAIN FOR FUTURE REFERENCE!
© 2019 HEROSE GMBH
ARMATUREN UND METALLE
Elly-Heuss-Knapp-Straße 12
23843 Bad Oldesloe
Germany
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Web: www.herose.com
2nd issue 10/2019
The transmission or duplication of this document and the use or communication of its
content are forbidden unless expressly permitted. Any violations shall result in liability for
damages. All rights in the event of patent, utility model or registered design are
reserved.

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Table of contents
1About these instructions ................................................................................................1
2Safety............................................................................................................................1
3Transport and storage ...................................................................................................4
4Description of the safety valve.......................................................................................4
5Assembly.......................................................................................................................7
6Operation ......................................................................................................................8
7Maintenance and service...............................................................................................9
8Disassembly and disposal ...........................................................................................11

Operating instructions
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1 About these instructions
1.1 Principles
The operating instructions are part of the safety valve named on the front page.
1.2 Applicable documents
Document
Contents
Catalogue page
Description of the safety valve
For accessories, refer to the respective manufacturer's documentation.
1.3 Hazard levels
The warning notes are marked and classified according to the following hazard levels:
Symbol
Explanation
DANGER
Identifies a hazard with a high risk level that will result in death
or serious injury.
WARNING
Identifies a hazard with a moderate risk level that will result in
death or serious injury.
CAUTION
Identifies a hazard with a low risk level that will result in a minor
or moderate injury.
NOTICE
Identifies a risk to property. Damage to property may occur if
this notice is ignored.
2 Safety
2.1 Intended use
The safety valve protects the vessel and pipework systems against impermissible excessive pressure.
The permissible operating conditions are specified in these operating instructions.
The valve is suitable for the media listed in these operating instructions; see section 4.5 “Media”.
Operating conditions and applications deviating from these require the approval of the manufacturer.
Only media may be employed to which the materials used for the valve body and seals are resistant.
Contaminated media or usage outside of the pressure and temperature specifications can lead to damage
to the valve body and seals.
Avoidance of foreseeable incorrect use
Never exceed the permissible usage limits specified in the data sheet or in the documentation
with regard to pressure, temperature, etc.
Follow all safety instructions and operating procedures in these operating instructions.
Warranty claims against HEROSE GMBH will be rejected if the HEROSE seal is broken by
unauthorised companies.
2.2 Meaning of the operating instructions
The operating instructions are to be read and followed by the responsible technical personnel before
mounting and start-up. As part of the safety valve the operating instructions must be available in their
vicinity. People could be seriously injured or killed if the operating instructions are not followed.
Read and observe the operating instructions before using the safety valve.
Retain the operating instructions and make sure they are available.
Pass on the operating instructions to subsequent users.

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2.3 Requirements for persons who work with the safety valve
Persons could be seriously injured or killed if the safety valve is used improperly. In order to avoid
accidents, all persons who work with the safety valve must meet the following minimum requirements:
They must be physically able to control the safety valve.
They are able to safely carry out the work with the safety valve within the scope of these operating
instructions.
They understand the operating principles of the safety valve works within the scope of their work and
can recognise and avoid the hazards associated with the work.
They have understood the operating instructions and are able to implement the information of the
operating instructions accordingly.
2.4 Personal protective equipment
Missing or unsuitable personal protective equipment increases the risk of damage to health and injuries to
people.
The following protective equipment is to be provided and worn during work:
Protective clothing
Safety shoes
Define and use additional protective equipment depending on the application and the media:
Safety gloves
Eye protection
Ear protection
Wear the specified personal protective equipment for all work on the safety valve.
2.5 Additional equipment and spare parts
Additional equipment and spare parts not conforming to the manufacturer's requirements can negatively
affect the operational safety of the safety valve and cause accidents.
In order to ensure operational safety, use original parts or parts that conform to the
manufacturer's requirements. If in doubt, have these confirmed by the dealer or manufacturer.
2.6 Adhere to the technical thresholds
If the technical thresholds for the safety valve are not adhered to, the safety valve may sustain damage,
accidents may be caused and people may be seriously injured or killed.
Adhere to the thresholds. See chapter “4 Description of the safety valve".
2.7 Safety instructions
DANGER
Hazardous medium.
Escaping operating medium can lead to poisoning, burns and caustic burns!
Wear the prescribed protective equipment.
Provide suitable collecting containers.
Stand to the side of or behind the valve during lifting.
The outlet must be free.
Flammable media and dusts
Risk of sustaining burns!
Avoid potential sources of ignition in the immediate vicinity of the safety valve.
Attach warning signs.
Risk of injury due to pressure
Injury due to the valve being flung away!
Depressurise and empty all supply lines before dismounting the valve.
Make sure that the system is depressurised.
Secure against being pressurised again.
Do not bend over the valve when dismounting.

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WARNING
Harmful and/or hot/cold conveyed media, lubricants and fuels
Hazardous for persons and the environment!
Collect and dispose of rinsing medium and any residual media.
Wear protective clothing and a protective mask.
Observe legal regulations regarding the disposal of harmful media.
Risk of injury if maintenance work is done incorrectly!
Incorrect maintenance can lead to serious injury and considerable material damage.
Before the start of work, ensure there is sufficient room for doing the work.
Ensure the space around the work is tidy and clean! Parts and tools in loose piles or lying around
are hazard sources.
If parts have been removed, take care to assemble correctly and re-install all attachment items.
Before putting back into service, ensure:
All maintenance work has been carried out and completed.
There are no persons in the hazard area.
All covers and safety devices are installed and operating correctly.
CAUTION
Cold/hot pipelines and/or safety valves.
Risk of injury due to thermal influences!
Insulate the safety valve.
Attach warning signs.
Medium escaping at high speed and high/low temperature.
Risk of injury!
Wear the prescribed protective equipment
NOTICE
Impermissible stresses arising from operating conditions and extensions / added structures.
Angle valve body leaking or broken!
Provide suitable support.
Additional loads, such as traffic, wind or earthquakes, are not explicitly taken into account by
default and require separate sizing.
Condensation in air conditioning, cooling and refrigeration plants.
Icing!
Blocking of the actuation mechanism!
Damage due to corrosion!
Insulate the safety valve diffusion-tight
Improper mounting.
Damage to the safety valve!
Remove cover caps before mounting.
Clean the sealing surfaces.
Protect the body against hammering.
Painting of safety valves and pipelines.
Impairment of the function of the safety valve / loss of information!
Protect stem, synthetic material parts and type plate against the application of paint.
Exceeding the maximum permissible operating conditions.
Damage to the safety valve!
The maximum permissible operating pressure must not be exceeded, and the minimum and
maximum allowable working temperatures must be observed.

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3 Transport and storage
3.1 Inspection of condition on delivery
Inspect the safety valve for damage upon receipt.
In case of transport damage, determine and document the precise extent of the damage, and
report it immediately to the supplying dealer/carrier and the insurer.
3.2 Transportation
Transport the safety valve in the packaging supplied.
The safety valve is delivered in a ready-to-operate state with the connections protected by caps.
Protect the safety valve against shocks, hammering, vibrations and dirt.
Adhere to a transport temperature range of -20 °C to +65 °C.
3.3 Storage
Store the safety valve in a clean and dry place.
Make use of a desiccant or heating in damp storerooms to prevent the formation of
condensation.
Adhere to a storage temperature range of -20 °C to +65 °C.
4 Description of the safety valve
Refer to the respective catalogue page for further detailed information.
4.1 Structure
Design
Directly acting angle type safety valve, spring-loaded.
4.2 Valve marking
The safety valve is equipped with a marking for identification.
Explanation
Type
06810/ 06815/ 06820/ 06850/ 06855
TAG-no.
Specified by the customer
S/N:
Serial number
Date
MM.YY, month and year of manufacture
TÜV SV
Component identification number
S/G
Coefficient of discharge for vapours (S) and
gases (G)
L
Coefficient of discharge for liquids (L)
p0
Opening pressure
d0
Narrowest flow diameter in mm
A0
Narrowest flow area in mm²
cap
Capacity of the valve
Lift
Valve lift
Temp
Temperature range min/max
pset
Test pressure
O2
Valving marking suitability for use with oxygen
0045
CE-mark, ID of notified body

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4.3 Intended use
Safety valves protect vessels and pipework systems against impermissible excess pressure. Safety
valves represent the last line of safety for a vessel or pipework system. They should be capable of
preventing impermissible excess pressure when all other upstream regulating, control and monitoring
devices have failed. In order to ensure this operability, safety valves require special attention during their
mounting and maintenance.
A safety valve is a piece of equipment with a safety function for protecting pressure equipment when the
permissible limits are exceeded and is thus subject to Directive 2014/68/EU (Pressure equipment
directive) of the European Parliament and of the Council, article 2, section 4.
4.4 Operational data
Type
d0
[mm]
Pressure
range*
[bar]
Max. back
pressure
[%]
Temperature
[°C]**
Medium
0681x
6
30 to 550
10
-270 to
+400
See section
"4.5 Media"
10
0.5 to 180
15
06820
6
30 to 550
10
0685x
10
0.5 to 250
15
14
0.2 to 200
18
0.5 to 110
*When the valve disc is implemented with a sealing plate, the sealing plate material (soft
material seal) must be considered in relation to the pressure and temperature (see details on
the technical data sheet). Further details are to be taken from the VdTÜV bulletin.
**When the safety valve 06820 is made of material 1.4462, the temperature range is from -40
to +250 °C.
4.5 Media
Gases, cryogenic liquefied gases and their gas mixtures, such as:
Name
Argon,
Nitrous oxide,
Ethane,
Ethylene,
Helium,
Carbon dioxide,
Krypton,
LNG
LPG,
Air,
Methane,
Neon,
Oxygen,
Nitrogen,
Trifluoromethane,
Hydrogen,
Xenon,

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4.6 Materials
Part
no.
Name
Material
1
Cap, lifting cap
1.4408; 1.4404; 1.4462
2
Stem
1.4404; 1.4462
3
Spring cap
1.4408; 1.4404; 1.4462
4
Spring
1.4571; 2.4469
5
Body
1.4408; 1.4404; 1.4462
6
Obturator
1.4571;NBR;FKM;VESPEL; 1.4462
7
Seat insert
1.4571; 1.4462
4.7 Scope of delivery
Safety valve
Operating instructions
4.8 Dimensions and weights
See catalogue page.
4.9 Lifetime
The user is obligated to use Herose products only for their intended purpose.
In this case, a technical service life may be assumed in accordance with the underlying product standards
(e.g. EN1626 for shut-off valves and EN ISO 4126-1 for safety valves).
The technical service life can be restarted several times through the exchange of wearing parts within the
context of the maintenance intervals, and lifetimes of more than 10 years can be achieved.
If products are stored for a period exceeding 3 years, then the synthetic material components and
elastomer sealing elements fitted to the product should be replaced as a precautionary measure before
mounting and use.
1
2
3
4
5
6
7

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5 Assembly
Other assembly steps may be necessary depending on the plant and type of safety valve. In the following
instructions only the major assembly steps are summarised. The instructions are intended only for coarse
orientation. The gasket manufacturer's data must be observed. Safety valves that are subject to special
cleaning regulations may only be unpacked shortly before assembly. When unpacking, it must be ensured
that the packaging is intact up to this point and that the safety valve is not contaminated. In addition, it
must be ensured that the cleanliness requirements are also met during the assembly and that the safety
valve is not contaminated.
5.1 Installation position
Vertical
From 20 to 300 bar in the horizontal installation position, with the outlet facing downwards.
5.2 Notices regarding the mounting
Use suitable tools.
Open-ended spanners
Torque wrench
Clean tools before the mounting.
Open the packaging only directly before the mounting. Freedom from oil and grease for oxygen
(O2)
Safety valves for oxygen are permanently marked with "O2".
Install the safety valve if the maximum operating pressure and operating conditions correspond
to the marking on the safety valve. Take note of the p-t-curve of the safety valve on the
catalogue page and the resulting areas of application
Remove protective caps or covers before mounting.
Check the safety valve for dirt and damage.
DO NOT install damaged or dirty safety valves.
Remove any dirt and residues from the pipeline in order to avoid leaks.
Use the entire usable thread length for mounting; at least four thread pitches.
Avoid damaging the connections.
The sealing surfaces must remain clean and intact.
Seal the safety valve using suitable seals.
No sealant (sealing tape, liquid sealing tape) may enter the safety valve.
Respect the suitability for use with O2.
Connect pipelines in a force-free and torque-free manner.
Stress-free mounting.
In order to ensure trouble-free operation, no impermissible static, thermal or dynamic stresses
may be transmitted to the safety valve. Observe reaction forces.
The safety valve is supported by the pipework system.
The safety valve must be protected against dirt and damage during construction work.
Check leak-tightness after completion of mounting.
Tightening torques
The tightening torques specified by the manufacturer are maximum permissible values at room
temperature and with uniform thread mating. The real torque to be used depends on the screw-in
conditions in the plant and must be specified by the plant operating company.
Thread
3/8‘‘
1/2‘‘
3/4‘‘
1‘‘
1 1/4‘‘
1 1/2‘'
2‘‘
M40x2
Inlet
MA [Nm] –max. perm. tightening torque
G
50
120
220
250
1200
1400
-
-
R / Rc
70
140
250
440
860
1000
-
-
NPT
80
170
280
520
890
1100
-
-
Metric
-
-
-
-
-
-
-
180
Outlet
MA [Nm] –max. perm. tightening torque
G
-
60
90
200
320
400
590
-
R / Rc
-
130
210
420
780
810
1800
-
NPT
-
160
210
490
800
800
1600
-

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6 Operation
The maximum permissible pressure drop in the supply lines to the safety valves may not exceed
the 3% pressure difference between the response pressure and superimposed back pressure on
the safety valve.
Vibrations are to be avoided.
Check the following points prior to start-up:
All mounting and installation work are completed.
Compare the material, pressure, temperature and installation position with the layout plan for
the pipework system.
Dirt and residues have been removed from the pipeline and safety valve in order to prevent
leaks.
6.1 Liftability (manual actuation for testing)
Liftable safety valves are equipped with an appropriate device above the spring cap.
Liftable safety valves can be made to open at ≥85 % of the set pressure without aids.
Typical lifting cases are initial commissioning, after breaks in operation and functional testing; the
procedure is as follows:
1. Release the lifting lever again.
2. Pull the lifting lever away from the spring cover
until blow-off of the operating medium is clearly
audible.

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7 Maintenance and service
7.1 Safety during cleaning
Take note of the specifications in the safety data sheet and the general occupational health and
safety rules if degreasers are used for process-related reasons for the cleaning of bearing parts,
unions and other precision parts.
7.2 Maintenance
The maintenance intervals must be defined by the user according to the operating conditions.
The recommendations for the functional checking of the safety valve are to be taken from section 7.2.1
"Inspection and maintenance intervals" in these operating instructions.
7.2.1 Inspection and maintenance intervals
Recommended intervals
Inspection
Interval
Scope
Inspection
During start-up
Visual inspection
of the angle valve for
damage;
of the valving marking for
legibility;
for absence of damage to
the sealing
Leak-tightness
Union of the valve seat;
If existent, actuation of the lifting
device.
Functional testing
Annually
If present, test of lifting device
including visual inspection.
External inspection
Every 2 years
Function and tightness test
including visual check.
Internal inspection
Every 5 years
Replacement of all sealing
elements by the manufacturer
including functional, tightness
test and visual check.
Hydraulic test
Every 10 years
Replacement of all sealing
elements by the manufacturer
including functional, leak-
tightness, pressure test and
inspection.

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7.3 Fault table
Fault
Cause
Remedial action
Safety valve does
not respond
Covers have not been
removed;
Remove covers.
Test pressure too high;
Replace the safety valve.
Back pressure not taken into
account;
Replace the safety valve.
Not liftable
Pressure below 85% of the set
pressure;
Lifting in the range ≥85 % of the set
pressure without aids.
Leak in the
seating
Foreign bodies between cone
and seating, contaminated
medium;
Remove foreign bodies by briefly
lifting / flush the system or replace
the safety valve.
Seating damaged;
Replace the safety valve.
Cone seal damaged;
Replace the safety valve.
Safety valve has chattered;
See "Chattering".
Damage to the
inlet/outlet
Transport damage;
Replace the safety valve.
Wrong connecting thread /
tightening torque too high;
Replace the safety valve.
Impermissible forces such as
bending or torsional forces are
being transmitted;
Install stress-free.
Shock waves
Safety valve not mounted at
the highest point;
Install the safety valve at the
highest point.
water not drained correctly or
at all;
Attach water drain according to
regulations.
Constantly
blowing off
Spring corroded by
impermissible medium and
broken;
Replace the safety valve.
System pressure too high
Replace the safety valve.
Seal damaged;
Replace the safety valve.
Chattering
Pressure drop in the inlet line
>3%;
Reduce resistance through chamfer
or radius in the connecting socket;
choose a larger one if necessary.
Shorter inlet line.
Incorrect safety valve; exchange it.
Seals for inlet and outlet
connector too small or not
installed centrally;
Change conditions.
Safety valves are too powerful;
choose smaller safety valves.
Outlet line too long or diameter
too small;
Use a larger nominal diameter or a
back-pressure-compensating
stainless steel bellows. The max.
height is to be specified by the
manufacturer.
Inlet or outlet connector too
small;
Dimensions must be larger than the
nominal inlet or outlet diameter.
Back pressure higher than 3%;
Use back-pressure-compensating
stainless steel bellows. The max.
height is to be specified by the
manufacturer.
Inadequate
capacity
Safety valves dimensioned
incorrectly for the plant
conditions;
Re-dimension and replace the
safety valve.
Safety valves not being used in
accordance with the applicable
regulations;
Change conditions.

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7.4 Spare parts
Repairs to the safety valves may be carried out only by HEROSE or by specialist workshops authorised
by HEROSE and monitored by the regulatory authorities, using only original spare parts.
7.5 Returns / complaints
Use the Service form in case of returns/complaints.
Contact in case of service:
Herose.com › Service › Product service › Complaints
E-mail: [email protected]
Fax: [phone]
8 Disassembly and disposal
8.1 Notices regarding the disassembly
Take note of all national and local safety requirements.
The pipework system must be depressurised.
The medium and the safety valve must be at ambient temperature.
Aerate / flush the pipework system in the case of corrosive and aggressive media.
8.2 Disposal
1. Dismantle the safety valve.
Collect greases and lubricating fluids during dismantling.
2. Separate the materials:
Metal
Synthetic material
Electronic scrap
Greases and lubricating fluids
3. Carry out a sorted disposal of the materials.

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