Flotronic F 500 series, Инструкция по установке, эксплуатации и обслуживанию

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Section 14 - F Series Slim Style Metallic Pumps
All previous maintenance and other instructions up to and including Section 10 given earlier apply to
F Series Slim Style Metallic Pumps. In addition the following procedures apply.
After disconnecting the process pipework, access to the delivery and suction valve balls for inspection
and replacement may be achieved as follows.
NON SEATED VERSIONS
Remove the two bolts attaching the delivery manifold to the pump body. Detach the manifold exposing
the balls and also the ‘O’ ring seals which remain contained in their manifold grooves.
For access to the suction valve balls, the following procedure should be adopted for which it will be
found easier to work with the pump inverted although this is not essential.
On pumps up to 1” fitted with 7” or 10” diameter diaphragms, there are two central attachment bolts which
pass through the footplate and manifold into the body. Once these are removed the manifold can be
detached complete with the footplate exposing the suction balls and ‘O’ rings. Again the ‘O’ rings will
be contained in their manifold grooves.
On 1
1
/
2
” and 2” pumps with 10” diameter diaphragms, the attachment bolts are positioned through
protruding lugs on the ends of the manifold. On 2” pumps with 12” diameter diaphragms, there are
four outer bolts that pass through the footplate.
SEATED VERSIONS
After unscrewing the bolts referred to, the delivery chamber can be removed, exposing the two seats
and allowing the delivery balls to be seen, which will be mounted on the body. For access to the suction
valve balls and seats it will be found easier to work with the pump inverted although this is not essential.
New balls and seats should be fitted when necessary and each seat has two ‘O’ rings fitted which should
be changed as required. To reassemble, the reverse procedure is adopted making sure the chambers are
clean and free from obstruction.
Re-assemble the pump in reverse order tightening the bolts to the torque specified in Section 8.
To replace the divider seal, follow the instructions given for the F Series 500 Style pump in Section 11.
36
F Series
Slim Style Metallic Pumps