OPERATING MANUAL
07-2022
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4.
STORAGE AND TRANSPORT
The products are packed on EURO pallets (
1200x800
) or in dedicated packaging. The valves should be stored in
clean rooms, free from bacteriological and chemical contamination, at temperatures from -20°C to 70°C. The paint
coating and rubber elements must be protected against long-term exposure to UV radiation. The stored valves are
protected against mechanical damage.
Do not compress any rubber parts. The valve flap should be left in an intermediate position - so that the flap does
not exceed the installation length of the valve (
this position is shown in Figs. 6 and 7
). Secure the products against
shifting during shipping and handling. Heavy valves (DN500 and larger) shall be handled with dedicated eye bolts;
valve sizes from DN200 to DN400 shall be handled on slings and secured from rotating. Do not handle by the
lever, the gearbox handwheel, or the operator/gearbox housing.
Table 3 below lists the transport holes on the flange projections for the range DN500 - DN900 - Fig. 3. For DN1000
and DN1200, the transport holes are located on the cylindrical surface of the body (
between the connection flanges
to the pipeline
) - Fig. 4.
DN500
DN600
DN700
DN800
DN900
DN1000
DN1200
PN10
4𝑥𝜙28
4𝑥𝜙31
4𝑥𝜙31
4𝑥𝜙34
4𝑥𝜙34
4xM27
4xM36
PN16
4𝑥𝜙34
4𝑥𝜙37
4𝑥𝜙37
4𝑥𝜙41
Table 3. Sizes of transport holes
Fig. 6. Butterfly valve part no. 4493SA DN800
Fig.7. Butterfly valve part no. 4493 DN1200
5.
INSTALLATION
5.1.
GENERAL REQUIREMENTS
Flanged butterfly valves: TYPE 4493, TYPE 4493SQ and TYPE 4493SA can be installed in underground or
overground pipelines on horizontal or vertical installations. The listed products are suitable for joining with the
flanged ends of pipelines with the size equal to that of the valve flanges. The valves are bi-directional tight. The
valves are to be installed in the pipeline so that the flow direction of the medium is in accordance with the flow
direction indicated on the body. This is due to the increased service life of the sealing elements and the reliability
of operation in such a configuration. At the moment of valve opening the stream coming out through the slit in the
lower part of the body has the maximum speed, which consequently results in tearing off the embedded
contamination (this applies to the situation when solid contaminants get with the medium and they settle at the
bottom of the pipeline and in the body of the butterfly valve). It is possible to mount the valve in the opposite
direction to the arrow on the body, bearing in mind the increased wear and tear of the sealing elements compared
to the standard configuration described above.