OPERATION AND MAINTENANCE MANUAL
12-2015
12
3.4 TRANSPORTATION
Cast iron flange valves TYPE 7010, TYPE 7050 and threaded TYPE 7040 should be
transported by covered means of transport.
The producer recommends using a lifting sling from DN100 to DN200.
TYPE 7010
TYPE 7050
4 ASSEMBLY AND INSTALLATION
4.1 INSTALLATION GUIDELINES
Cast iron flange valves TYPE 7010, TYPE 7050 and threaded TYPE 7040 can be built over in
underground pipelines and above ground vertical systems. Flange valves are adapted to be fitted
with pipeline stub pipe flanges with dimensions corresponding with the valve flanges. Valves
sized DN50 additionally have a terminal which enables a threaded connection. During fitting,
make sure that the installation in progress does not cause the fittings (valve) to be stressed with
bending or stretching force resulting from mass of an unsupported pipeline. It is recommended to
carry out installation works taking into account pipeline compensation for temperature and
pressure. Valves should be installed in easily accessible places which enable regular controls with
scheduled frequency. Correctly sized holes should be provided in the installation design to ensure
uninterrupted air flow in both sides. As small amounts of water may escape with the air, a method
of its drainage should be provided as well (e.g. sewage grate). Threaded G
1
output hole in the
cover enables the installation of a bend or a pipe which makes it possible to direct water spatter in
the direction of a sink. It is recommended to put a security net on the output end to prevent the
entry of contamination or small insects.
The valve, after assembly and delivery by the producer is ready to be installed in the system.
Works connected with disassembly of valve elements carried out without due care may cause it to
lose its sealability.
4.2 INSTALLATION INSTRUCTION
When attempting installation of fittings, one should check the technical and commercial
documentation, that is the compliance of installed valve with the order and its intended use for
media and the working parameters of the pipeline it is to be installed. Each change of operation
conditions requires consultation with the fittings' producer.
