Spirax Sarco Spira-trol K Series, Инструкция по установке и обслуживанию

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IM-S24-42 CTLS Issue 10
40
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TRANSLATION RUN OVER
Note: Before actioning any installation, observe the 'Safety information' in Section 1.
Referring to the Installation and Maintenance Instructions, name-plate and Technical Information Sheet,
check that the product is suitable for the intended installation:
3.1
Check materials, pressure and temperature and their maximum values.
Do not exceed the
performance rating of the valve. If the maximum operating limit of the product is lower than that of
the system in which it is being fitted, ensure that a safety device is included in the system to prevent
overpressurisation.
3.2
Remove protection covers from all connections and protective film from all name-plates, where
appropriate, before installation on steam or other high temperature applications.
3.3
Determine the correct installation situation and the direction of fluid flow. The valve should preferably
be installed along a horizontal pipeline with the valve mounted above the pipe (see Figure 3). When
mounting an actuator to the valve body, the actuator Installation and Maintenance Instructions must
be followed.
3.4
Bypass arrangements - It is recommended that isolating valves be fitted upstream and downstream
of the control valve, together with a manual bypass control valve. This enables the process to be
controlled manually using the bypass valve while the pneumatic valve is isolated for maintenance.
3.5
Support pipework should be used to prevent stresses being exerted on the valve body.
Note: If a
DN125 to DN300 valve is to be installed in vertical pipework the actuator will require additional support.
3.6
Ensure adequate space is provided for the removal of the actuator from the valve body for maintenance
purposes:
3.7
Isolate connecting pipework. Ensure it is clean from dirt, scale etc. Any debris entering the valve may
damage the head seal preventing the specified shut off.
3.8
Open isolation valves slowly, until normal operating conditions are achieved.
3.9
Check for leaks and correct operation.
Fig. 3
Isolating
valve
Strainer
Bypass
Spira-trol
TM
valve
Bypass valve
(piped horizontally)
AVV*
*
Anti-vacuum valve
recommended for
steam installations.
Fig. 4
Isolating
valve
3. Installation