NEOTECHA NEOSEAL BUTTERFLY VALVE
INSTALLATION AND MAINTENANCE INSTRUCTIONS
Before installation these instructions must be fully read and understood
2 SAFETY
Please also read through these notes carefully.
2.1 General potential danger due to:
a. Failure to observe the instructions
b. Improper use
c. Insufficiently qualified personnel
2.2 Correct use
2.2.1 Area of application
Neoseal valves are fittings that are used for the
isolation, throttling and regulation of corrosive
and non-abrasive liquids, together with gases,
pastes and powdery products in pipelines,
vessels, apparatus etc.
The area of application of the fitting is the
responsibility of the system designer. Special
characteristics of the fitting must be taken
1 GENERAL INFORMATION ON THE
INSTALLATION AND MAINTENANCE
INSTRUCTIONS
These installation and maintenance
instructions contain the information necessary
for safe and correct installation and operation
of the fitting. If any difficulties are encountered
during installation or operation which cannot
be solved with the aid of the installation and
maintenance instructions, please contact the
supplier/manufacturer for more information.
These installation and maintenance
instructions comply with the relevant
applicableEN safety standards.
When installing the fitting, the operator or
the person responsible for the design of
the installation must ensure that applicable
national regulations are complied with.
The manufacturer reserves all rights to
make technical changes and improvements
atanytime.
The use of these installation and maintenance
instructions assumes that the user is qualified
to ‘Qualified Personnel’ level.
Operating staff must be given appropriate
training in the operating and maintenance
instructions.
intoaccount.
A very wide selection of product-wetted
components parts is available which allows
suitable combination for the optimal solution
toyour specific application.
Always consult the manufacturer when the
fitting is to be used with media that require
orpreclude the use of certain materials.
2.2.2 Method of operation
The valve is opened or closed by turning
theflap spindle. The angle of rotation is 90°.
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NEOTECHA NEOSEAL BUTTERFLY VALVE
INSTALLATION AND MAINTENANCE INSTRUCTIONS
2.2.3 Performance data
Pressure (bar) Liner DN 40-150 DN 200-600 DN 700/800-900 DN 750
10 PTFE/TFM -40 +180 °C -40 +160 °C
Butyl -30 +120 °C -30 +120 °C
Carboxyl nitril -20 +120 °C -20 +120 °C
EPDM -30 +140 °C -30 +140 °C
Hypalon -20 +140 °C -20 +140 °C
Silicone -30 +180 °C -30 +120 °C
FKM -20 +160 °C -20 +160 °C
UHMWPE -40 +80 °C -40 +80 °C
6 PTFE/TFM -40 +200 °C -40 +180 °C -20 +100 °C
Silicone -30 +200 °C -30 +180 °C
4 PTFE/TFM -40 +200 °C -40 +200 °C -20 +150 °C
Silicone -30 +200 °C -30 +200 °C
2.5 PTFE/TFM -40 +200 °C -40 +200 °C -20 +150 °C -20 +100 °C
1.5 PTFE/TFM -40 +200 °C -40 +200 °C -20 +150 °C -20 +150 °C
2.2.4 Usage restrictions
The product-wetted components must be
classified as resistant to the product to be
conveyed. Refer to appropriate literature or
consult the manufacturer or distributor for
advice on this.
2.2.5 Modification prohibition
Mechanical modifications to the valves or the
use of other manufacturers’ parts for repair
purposes is not permissible. Safety is not
guaranteed if this requirement is disregarded.
Repair work must only be carried out by the
manufacturer’s trained personnel.
2.2.6 Warning about foreseeable misuse
Valves and their accessories (e.g. operating
elements) must not be misused as
climbingaids.
2.2.7 Duty to comply with the instructions for
operation, maintenance and servicing
These instructions form part of the delivery
package and must be kept clean and made
accessible to the user.
2.3 Sources of danger
2.3.1 Chemical external
The valve body has a 2-part polyester coating.
The coating can be attacked externally by
strong solvents, leading to corrosion of
the body. If damage of this nature occurs,
the effects of the environment should be
investigated and the damage to the coating
made good.
2.3.2 Mechanical
When using the hand lever, it should be
ensured that there is still sufficient clearance
for the hands at the end position of the handle,
so that there is no risk of trapping.
Excessive oscillation and vibration should be
avoided, to prevent the bolts loosening.
2.3.3 Electrical
If static charges can lead to explosions, the
valve must be earthed by means of the earthing
accessory and mount it to the valve by using the
screw on the valve body neck. In addition, we
recommend the use of valves with electrically
conductive linings. Please contact your
supplier!
2.3.4 Thermal
Due to the range of operating temperatures
between -40°C and +200°C, surface
temperatures from -20°C to over +85°C can be
present on the valve body. Suitable precautions
should be taken to protect against burns due
to high or freezing temperatures. In particular,
insulated gloves should be worn when using
the hand lever, for example.
In case of fire, the mechanical strength of the
PTFE ring bellows is no longer guaranteed
above 200°C.
2.4 Requirements for the operator
This means people who are familiar with the
erection, installation, commissioning, operation
and maintenance of the product and have
appropriate qualifications relating to their
activities and functions, such as e.g.:
- Instruction in and duty to comply with all
installation-related, regional and internal
works regulations and requirements.
- Training or instruction in accordance with the
Safety Standards for personal care and use of
appropriate safety equipment and protective
workgear, like e.g. personal protection
equipment (e.g. insulated gloves), suitable
forthe operating conditions.
Furthermore, these people must have
readandunderstood these instructions.
3 TRANSPORT/STORAGE
The valve is supplied with protective covers.
Do not remove the protective covers until
immediately prior to installation. They protect
the PTFE surface from dust and mechanical
influences.
3.1 Transport
- Transport temperature -20°C to +65°C.
- Protect against external force(impact,
shock,vibration).
- Do not damage the coating.
3.2 Storage
- Storage temperature -20°C to +65°C,
dryanddust-free.
- A drying agent or heating is required in
damp storage areas to protect against
condensation.
- Keep the valve disc in a slightly open
position(5-10°).
3.3 Handling prior to installation
- With versions with protective covers, only
remove the covers immediately prior to
installation!
- Protect against the effects of weather,
e.g.dampness (or else use a drying agent).
- Proper treatment prevents damage.
2