handtmann 12605 User manual

Operating manual
Pressure compensation valve (COMBI)
12605
BA_012605.04_EN
1 / 7 Albert Handtmann Armaturenfabrik GmbH & Co. KG 2017-09-14
1General.............................................................................................................................................................1
2Safety Information............................................................................................................................................2
3Delivery, Completeness, Storage ......................................................................................................................3
4Installation, Operation, Maintenance ...............................................................................................................3
1General
1.1 Manufacturer
Albert Handtmann Armaturenfabrik GmbH & Co. KG
Arthur-Handtmann-Str. 11; D-88400 Biberach
Tel.: [phone]; Fax: [phone]
E-Mail: sales.fit[email protected]
1.2 Proper application
Pressure relief valves are used in the food and beverages industry. They are used for
protection against vacuum/overpressure in tanks and other closed systems. They do not
meet the criteria for a safety valve according to the pressure equipment directive (PED.
During installation, operation and maintenance please pay attention to the generally
accepted safety regulations as well as to the operating instructions.
1.3 Misuse
Misuse is
Misuse is:
•Application in different operating conditions as intended for the specific type.
•Installation, operation and maintenance by unqualified staff.
•Any unauthorized modification of the valve or a valve component.
•On-observance of the operating instructions.
Any misuse will automatically lead to a loss of right to claim under guarantee as well as
any liability.
1.4 Duties of operator
The operator has to make sure that:
•The valve/component is operated properly and only in functional condition.
•The legal requirements are kept during operation and maintenance.
•Only sufficiently qualified and authorized staff maintain the valve/component.
•The staff responsible for operation and maintenance know and obey the
operating instructions and in particular the safety advice.
•The safety and warning signs remain on the valve/component and are
always legible.

Pressure compensation valve (COMBI)
12605
BA_012605.04_EN
2017-09-14 Albert Handtmann Armaturenfabrik GmbH & Co. KG 2 / 7
2Safety Information
Notice and Safety
The following safety advice is an addition to existing national regulations and laws for
accident prevention. Existing regulations and laws for accident prevention always have to
be adhered to. Pay attention to the specific regulations and laws in your country.
The safety advice does not take into account:
•Coincidences and events that may occur during assembly, operation and
maintenance.
•Local safety regulations in responsibility of the operator.
Basic safety advice
Requirements for a proper function of the valve/component:
•Proper transportation and storage
•Installation and setting into operation by authorized staff
•Operation according to these operating instructions – proper application
•Proper and regular maintenance
WARNING
Warning – general dangers!
To avoid danger for health and life the following safety instructions
strictly have to be obeyed.
•Assembly and setting into operation only by qualified staff.
•Instruction and supervision by the operator.
•Keeping of technical and electrical data as specified in the operating instructions.
•Guarantee the electric safety of external devices.
•Keep legal regulations.
Non-observance may lead to the following dangers:
•Malfunction of the valve/component respectively of the plant.
•Danger for persons due to electrical, mechanical and chemical affects.
•Danger for the environment due to possible leakage of dangerous media.

Pressure compensation valve (COMBI)
12605
BA_012605.04_EN
3 / 7 Albert Handtmann Armaturenfabrik GmbH & Co. KG 2017-09-14
3Delivery, Completeness, Storage
•Check the data of the delivery note for factual correctness and the material for
completeness. We regret that money cannot be refunded after purchase.
•Always check the material for transport damages. Possible damages have
to be informed immediately.
•Store the material in a dry place and if possible in its original packaging.
4Installation, Operation, Maintenance
Important notice!
•The pressure compensating valve is a combination (COMBI) of venting valve and
pressure-relief valve and has been designed for a vertical installation position
(connection DN65).
•The venting or blow-off area is separated from the spring chamber
(hygienic design). Any soiling/microbial contamination due to exiting liquid can
be cleaned easily.
•The venting valve will open at a vacuum of 3-4 mbar. Incoming ambient air leads to
a pressure compensation inside the system. The valve is closed again due to spring
action.
•The pressure relief valve will open at an increase in pressure of 7-8 mbar. Ambient
air flowing out into the environment leads to a pressure relief inside the system.
The valve is closed again due to spring action.

Pressure compensation valve (COMBI)
12605
BA_012605.04_EN
2017-09-14 Albert Handtmann Armaturenfabrik GmbH & Co. KG 4 / 7
4.1 Assembly instructions
To exclude confusion during assembly/disassembly the instructions available in the
operating instructions, the rating plate or the type identification must be observed by all
means.
• Screw the upper part (4) off the housing (1)
•Completely remove the valve insert from the housing (1)
•Loosen the nut (8)
•Completely disassemble the valve insert
•Clean the components and replace components with spare parts
•Change the O-ring (11) in the low pressure cup
•Change the O-ring (12) in the overpressure cup
•Replace wearing parts (13) and (14) as required
•Perform the assembly in reverse order
Fig. 1: Pressure compensation valve
4.2 Operation
Type 12605
•Keep the valve clean.
•Lift the valve cone from time to time.
•Exchange the O-ring (1) carefully.
•Avoid any damages at the valve seat.
•Protect vacuum valves from any force influence from outside.
•Admissible temperature: 40°C

Pressure compensation valve (COMBI)
12605
BA_012605.04_EN
5 / 7 Albert Handtmann Armaturenfabrik GmbH & Co. KG 2017-09-14
4.3 Maintenance
– The maintenance should be executed at regular intervals of min. every year.
Depending on the operating conditions of the valves, these intervals may be
shorter.
– During maintenance pay attention to the assembly and safety instructions.
– Any maintenance work may be carried out only in a depressurized system.
In case of spare parts orders please inform us the order №.
Gasket material EPDM
4.4 Seals
12605
10 O-ring
20 O-ring
30 O-ring
40 groove ring seal
4.5 Spare parts
DN 12605
50 012605.00050LE
LE - EPDM

Pressure compensation valve (COMBI)
12605
BA_012605.04_EN
2017-09-14 Albert Handtmann Armaturenfabrik GmbH & Co. KG 6 / 7
4.6 Identification of components
All pressure compensation valves (DAV) must be provided with permanent identification
oft the component
Explanation oft he identification:
Numerical
code AH DAV xxxxx xxx yyy xx / xxxxx
AH VV xxxxx xxx yyy xx / S xxxxx
Allocation 1 2 3 4 5 6
1 Manufacturer
2 pressure compensation valve
3 Valve type
4 Flow diameter do[mm]
5 Set underpressure p – underpressure / overpressure [mbar]
6 Year of manufacture with manufacturing №

Pressure compensation valve (COMBI)
12605
BA_012605.04_EN
7 / 7 Albert Handtmann Armaturenfabrik GmbH & Co. KG 2017-09-14
4.7 Performance diagram
Under pressure/Overpressure [mbar]
Under pressure - - - Overpressure
Output volume [Nm3/h]
Medium: air