allfi 919115 Manual
Operating and maintenance instruction
Shut-off valve 2.0
(4150 bar / 0,000 psi)
Operating and maintenance instruction
ALLFI AG - Riedenmatt 1 – CH- 370 Stans
Tel.: +41 41 18 05 05 - Fax: +41 41 18 05 10
E-Mail: info@allfi.com - http://www.allfi.com
November 2022
General
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Shut-off valve 2.0 (4150 bar / 0,000 psi) 09.01.2023
Scope of application
The present operating and maintenance instruction is valid for:
Shut-off valve 3/8" 2.0 (4150 bar / 0,000 psi)
919115
91911
UH-919115
General
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Shut-off valve 2.0 (4150 bar / 0,000 psi) 09.01.2023
Table of contents
1 General .......................................................................................................................................4
1.1 Information on use of the operation and maintenance instruction ......................................4
1.2 Scope of delivery .................................................................................................................4
1.3 Warranty claim ....................................................................................................................4
1.4 Disclaimer............................................................................................................................4
2 Security .......................................................................................................................................5
2.1 Declaration of symbols ........................................................................................................5
2.2 General arning notes ........................................................................................................5
2.3 Intended use .......................................................................................................................6
2.4 Inadmissible usage ..............................................................................................................7
2.5 Residual risks .......................................................................................................................7
2.6 Safety installations ..............................................................................................................8
2.7 Personal protection equipment ...........................................................................................8
2.8 Qualification of the staff ......................................................................................................8
3 Structure and function ................................................................................................................9
3.1 Structure .............................................................................................................................9
3.2 Funktion ..............................................................................................................................9
3.3 Accessories ..........................................................................................................................9
4 General technical data .............................................................................................................. 10
5 Installation and commissioning ................................................................................................. 11
5.1 Fix cutting head to the machine ......................................................................................... 12
5.2 Function check of the shut-off valve .................................................................................. 14
6 Deinstallation ............................................................................................................................ 14
7 Maintenance, Service and Repair .............................................................................................. 15
7.1 Regular maintenance ......................................................................................................... 15
7.2 Reversing (turning) the valve seat ...................................................................................... 16
7.3 Replace seal kit and valve seat ........................................................................................... 17
8 Faults and Troubleshooting ....................................................................................................... 19
8.1 Leakage of the shut-off valve: ............................................................................................ 19
8.2 Further troubleshooting .................................................................................................... 20
9 Recycling ................................................................................................................................... 20
Appendix A – Technical drawing and parts list (shipped with the product)
General
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Shut-off valve 2.0 (4150 bar / 0,000 psi) 09.01.2023
1 General
1.1 Information on use of the operation and maintenance instruction
This operation and maintenance instruction is a key part of the product. The information in this manual
is mandatory and must be read and understood by all the persons before operating with the Shut-off
valve 3/8 2.0. The manual must be stored in distance as well as always accessible to the persons,
working with the Shut-off valve 3/8 2.0.
Should you have any questions regarding the content of the manual, please contact the manufacturer
directly.
ALLFI AG - Riedenmatt 1 – CH- 370 Stans
Tel.: +41 41 18 05 05 - Fax: +41 41 18 05 10
E-Mail: info@allfi.com - http://www.allfi.com
1.2 Scope of delivery
The individual parts contained in the shipment can be gathered from the set list in the appendix A
(technical drawing and part list). Upon receipt, the shipment has to be checked of integrity. Possible
detected defectives must be reported immediately to the manufacturer.
1.3 Warranty claim
The ALLFI AG grants warranty for the shipped parts as followed:
Material and manufacturer faults of 12 months from date of delivery or
Defects within the first 2000 hours of operation
Following spare parts are excluded from the warranty:
Seal Kit (consist of Valve needle, HP-seal 2.0, spring & Pressure plate 2.0)
Valve Seat
O-Ring
Valve Case
1.4 Disclaimer
ALLFI AG refuses any claims of liability (material damages, physical injury, as well as disruption of op-
eration), that are a result of disregarding this operating and maintenance instruction.
For example, the damage as a consequence of:
Inadmissible application of the Shut-off valve
Defective maintenance
The disregard of operation instructions
Chemical and electrolytical influences
Use of parts, spare parts, or accessory from a third-party manufacturer
Arbitrary modifications
Not or insufficiently trained staff
The disregard of all these instructions happens on exclusive risk and exclusive responsibility of the cli-
ent. The ALLFI AG is not liable for any production downtimes.
Security
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Shut-off valve 2.0 (4150 bar / 0,000 psi) 09.01.2023
2 Security
2.1 Declaration of symbols
This operating and maintenance instruction manual contains important notes and symbols, which are
to be considered and followed. These include:
DA GER
Danger emphasizes operating and service procedures that if not avoided,
may lead to death or serious personal injuries.
WAR I G
Warnings emphasize operating or service procedures, or conditions that
can result in serious personal injury or death.
CAUTIO
Cautions emphasize operating or service procedures, or conditions that
can result in equipment damage or impairment of system operation. If not
avoided, light or medium body injuries could be the consequence.
NOTE
otes provide additional information that can expedite or improve operat-
ing or service procedures.
Danger symbol without key word: Additional notes
2.2 General warning notes
Using of the Shut-off valve, the following warnings are to be considered.
The specified warnings are not only restricted to the operation with the maximal
permissible operating pressure of 4150 bar / 0,000 psi. They are also valid on
work with reduced operation pressures!
Security
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Shut-off valve 2.0 (4150 bar / 0,000 psi) 09.01.2023
DA GER
Danger of cutting of extremities on contact with waterjet
The contact with the high kinetic energy performing waterjet can have the conse-
quence of cutting of extremities or lead to other injuries.
Therefore:
Operate the machine only, when nobody stands in the danger zone of the
waterjet.
Never touch the waterjet, not even with personal protective equipment.
Always sufficient safety distance during operation of the cutting head.
Never guide the Shut-off valve by hand during operation.
Any injuries in connection with the waterjet, alarm the emergency doctor imme-
diately.
CAUTIO
Danger of breathing difficulties and irritation of the skin and eyes by re-
leased solid particles or dust.
During machining of certain material, solid particles and dust may float in the air,
which could cause breathing difficulties and irritations to the skin and eyes.
Therefore:
Ensure the proper ventilation of the room surrounding the machinery.
Ensure to wear the personal protective equipment (protection glasses,
breathing mask, gloves, …)
Additionally, the rules and regulations of the working place are to be followed to
prevent injuries!
2.3 Intended use
The shut-off valve is designed for shutting off buffer bottles with the purpose of making pressure re-
duction and build-up faster. The shut-off valve must be firmly connected in the machine. Only pure wa-
ter may be used as the working fluid. The technical limits must always be observed. The specifications
for connection assignment must be observed.
Security
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Shut-off valve 2.0 (4150 bar / 0,000 psi) 09.01.2023
2.4 Inadmissible usage
Inadmissible usage of the Shut-off valve includes:
The usage of all other fluids other than water
The addition of other substances to the water
Closure of the pressure relief holes
Excessive stress on the shut-off valve
Exceeding permitted limits
Excessive stress on the shut-off valve
Operating the shut-off valve with demounted or disabled technical protection
Likewise, all other uses of the shut-off valve deviating from the intended use are not permitted. All
questions should be addressed directly to the manufacturer.
ALLFI AG - Riedenmatt 1 – CH- 370 Stans
Tel.: +41 41 18 05 05 - Fax: +41 41 18 05 10
E-Mail: info@allfi.com - http://www.allfi.com
2.5 Residual risks
The manufacturer and/or operator of the machine where the shut-off valve is built in, has taken every
precautionary measure possible to reduce residual risks, as far as possible reasonably practicably.
Operation
phase
Damage Danger Reason (possible) measures
Operation
Physical
injuries
Liquids leaking
under high pres-
sure (e.g. at
pressure relief
holes)
Ignoring the torque Follow the torque
Damaged sealing sur-
faces Regular supervision
Busted/Cracked connec-
tions and high-pressure
components as a result
of defects
Protective wall as a tech-
nical protective measure
Flying fragments
Ignoring the torque Follow the torque
Damaged sealing sur-
faces Regular supervision
Busted/Cracked connec-
tions and high-pressure
components as a result
of defects
Protective wall as a tech-
nical protective measure
High kinetic en-
ergy of water jet
Intrusion of extremities
in working area of water
jet
Wearing safety goggles and
other protective equipment
Carry out regular checks
Hearing
damage
Rapidly dis-
charging of fluid Leakage Wear ear protector
Security
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Shut-off valve 2.0 (4150 bar / 0,000 psi) 09.01.2023
2.6 Safety installations
The manufacturer or the operator of the full machine, which the shut-off valve is built in, has ensured
the following safety arrangements:
Safety devices to prevent flying fragments or liquids leaking under high pressure
Emergency stoppage to immediately shut down the operating machine
Active: Manually triggered by operator
Passive: Automatically triggered by:
o Failure of high pressure components or gross operating faults
Danger for the operator will arise if safety protections are not functionally, not
followed or evaded anytime. The operator has to ensure the functionality of the
safety protections anytime.
2.7 Personal protection equipment
The operator must offer his staff following protection equipment while he’s working:
Ear protector against:
Noise emissions
Wear protection glasses against:
Fluids and dust particles
Flying fragments
Hand guards against:
Sharp edges of components
Intrusion of micro particles into the skin
Inhalation protection against:
Dust particles, micro particles and spray mist
2.8 Qualification of the staff
The shut-off valve may only be operated and maintained by certified, trained staff.
Structure and function
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Shut-off valve 2.0 (4150 bar / 0,000 psi) 09.01.2023
3 Structure and function
3.1 Structure
1. Pneumatic Cylinder 2.0
2. Seal Kit 2.0
2.1. Valve needle
2.2. Pressure plate 2.0
2.3. HP-seal 2.0
2.4. Compression Spring
3. Coupling Ring
4. Valve Seat
5. Adapter 3/8" to Valve Case
. O-Ring
7. Reduction m/f
8. Valve case 2.0
3.2 Funktion
The shut-off valve is a high-pressure needle valve and is actuated pneumatically. It is closed by com-
pressed air and a pneumatic piston actuator and opened by spring force. The compressed air supply
is switched on and off by a controlled valve (not included in the scope of delivery). For information on
the maximum permissible operating pressure of the water, see chapter 4.
3.3 Accessories
Article: Ejector mandrel DX Paste P-Paste
Article no: 900070 051055 0510 5
Function: Replace Seal Kit and
Valve Seat
Greasing screw connections
and metallic contact areas for
standard applications
Greasing screw connec-
tions and metallic contact
areas for food safe
General technical data
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Shut-off valve 2.0 (4150 bar / 0,000 psi) 09.01.2023
All accessories for metric cutting heads are included in case set 882101
All accessories for imperial cutting heads are included in case set 882101-I
4 General technical data
Pneumatic pressure: - 7 bar / 87 psi – 102 psi
Minimum working pressure: 0 bar / 0 psi
Maximal working pressure: 4150 bar / 0,000 psi
Connection lines: Appendix A
Nominal size (DN) 1mm
Pressure loss coefficient (l/min & bar) 0.51
Maximal working temperature: 50 °C
Maximum transport and storage temperature: 0 °C
Reaction time: up to 1 switching cycles per seconds
Weight: ca. 1.5 kg
Requested water quality:
Water parameter Unit Value
Electrical Conductivity µS / cm 100 – 450
PH-value - 7.0 - 8.5
Total hardness °dH 2.0 - 10.0
Carbonate hardness
(acid capacity pH 4.3)
°dH 2.0 - 10.0
Degree of alkalinity pH 8.2 mmol / l 0 - 0.25
Chloride mg / l ≤ 50
Iron mg / l ≤ 0.2
Manganese mg / l ≤ 0.05
Copper mg / l ≤ 2.0
Silicate mg / l ≤ 5.0
(Filtrate-) solid content mg / l ≤ 350
Article: Torque wrench Open end fitting Mounting tool for
O-ring
Article no: 0004 8 AF 17 – 000339
AF 22 – 000272
AF 24 – 000280
AF 27 – 000511
040011
Function: Tightens screws with a
specific torque
O-ring assembly and dis-
assembly
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