TLV A-COS-10, Инструкция по эксплуатации

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172-65254MA-04 (A-COS-10) 22 Apr 2020
6
4. Precautions for the Installation of Additional Fittings Before or After the product
In order to ensure stable air flow, the piping upstream and downstream of the
product must be straight runs. If the product is installed either directly before or
after an elbow or control valve, unevenness in air flow may result in chattering
and unstable pressure.
To ensure stable air flow, it is recommended that the product be installed on
straight runs of piping, as illustrated below.
①
Inlet (primary side) of the product
NOTE: d = pipe diameter
Maintain a straight piping run
of
10 d or more when a
manual valve, a strainer or
an elbow, etc. is installed.
(Example: if nominal size is
25 mm (1 in), have 250 mm
(10 in) or more)
Valve, Strainer,
Elbow, etc.
A-COS
10 d or more
Valve, Strainer,
Elbow, etc.
A-COS
Less
than
10 d
Maintain a straight piping run
of
30 d or more when an
automated valve (on-off
valve) is installed.
(Example: if nominal size is
25 mm (1 in), have 750 mm
(30 in) or more)
Automated
Valve
A-COS
30 d or more
Automated
Valve
A-COS
Less than
30 d
Maintain a straight piping run
of
30 d or more when
another pressure reducing
valve is installed. (Two-stage
pressure reduction)
(Example: if nominal size is
25 mm (1 in), have 750 mm
(30 in) or more)
30 d or more
A-COS
Second
Reducing
Valve
Less
than
30 d
A-COS
Second
Reducing
Valve
②
Outlet (secondary side) of the
product
Maintain a straight piping run
of
15 d or more when a
manual valve, a strainer or
an elbow, etc. is installed.
(Example: if nominal size is
25 mm (1 in), have 375 mm
(15 in) or more)
A-COS
15 d or more
Valve, Strainer,
Elbow, etc.
A-COS
Less than
15 d
Valve, Strainer,
Elbow, etc.
Maintain a straight piping run
of
30 d or more when a
safety valve is installed.
(Example: if nominal size is
25 mm (1 in), have 750 mm
(30 in) or more)
30 d or more
A-COS
Safety
Valve
Less than
30 d
A-COS
Safety
Valve
Maintain a straight piping run
of
30 d or more when a
control valve or an
automated valve (on-off
valve) is installed.
(Example: if nominal size is
25 mm (1 in), have 750 mm
(30 in) or more)
30 d or more
A-COS
Control or
Automated
Valve
Less than
30 d
A-COS
Control or
Automated
Valve