Spirax Sarco ABV21i, Инструкция по установке и обслуживанию

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IM-P405-46 EMM Issue 5 10
3. Installation
Note: Before actioning any installation read the 'Safety information' in Section 1.
Although the valve has great structural integrity, severe misalignment and / or the pulling
effect of incorrect pipe length will have a detrimental effect on the valve and must be avoided.
Particular attention should be paid to correct pipe alignment such that the inlet pipework and
valve are all on the same axis.
Wherever practicable, valves should be installed where there is adequate space available so
that they can be conveniently operated and maintained.
Before installing a valve, check to ensure that size, pressure rating, materials of construction,
end connections, etc. are suitable for the service conditions of the particular application.
Care must be taken to ensure that all dirt which may have accumulated in the valve during
storage is removed before installation, maintain cleanliness during installation since the
introduction of dirt can result in damage to the valve seats and operating mechanism. To
minimise the danger of abrasive particles damaging the seats, pipeline strainers should be
fitted upstream of the valves.
Install the valve with the actuator uppermost. The preferred position is with the stem vertical.
The air supply to the solenoid valve/actuator must be in 10 mm ( ") minimum diameter pipe.
The air inlet connection is ¼ " BSP (G).
Table 1 Maximum air pressure
Valve size
Actuator Maximum air pressure
DN25 BVA315S /14 8 bar g (116 psi g)
DN32 BVA320S /14 8 bar g (116 psi g)
DN40 and DN50
BVA325S /14 8 bar g (116 psi g)
DN65 BVA330S /14 8 bar g (116 psi g)
3.1 To fit an MV type solenoid assembly to the valve actuator:
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Turn the spring loaded solenoid override screw anticlockwise to release it for normal
working.
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Fit the screwed location pin from the MV kit in the top centre position above the actuator
ports (see Figure 3). Ensure the pin is screwed far enough into the actuator to allow a
good seal to be made i.e. that it is not holding the solenoid away from the actuator.
-
Use the '3/2' adapter plate supplied with the solenoid assembly. Discard the '5/2' plate.
Note: Earlier versions used a double-sided plate. For this type, align the arrow on the
plate with the '3/2' on the valve assembly.
-
Fit the solenoid assembly to the actuator using the 2 screws provided in the kit. Do not
overtighten the screws as this could distort the plastic body and prevent proper working.
-
Connect the air supply to port 1 ( ¼ " BSP). Note that port 3 is blanked for this application.
The unmarked port near the override screw is not connected in this application.
The solenoid override is operated by using a screwdriver to push the spring loaded plastic
screw inwards and turning it clockwise to lock it in the 'override' position. This bypasses
the solenoid and allows the ABV to be operated without an electricity supply. The screw is
released by turning it anticlockwise.