Operating instructions Type INTEC / KH2F-CI
page
4
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7
Valid from 01/2018
5 Installation
5.1 Generals
With the help of a method of a pipe installation which is usual in the trade, the ball valves can be installed
at any position. Please take care that the ball valves are accessible for the operation.
The flow direction is arbitrary (with exception of the variants with relief well). The ball valves can also be
installed by changing the direction of the flow. Ball valves with specified flow direction have an indication
via a direction sign.
Valves and pipes which are operated at high (> 50°C) or deep (< 0 °C) temperatures must be protected
from touch by an insulation, or corresponding warning plates must show the danger of touch.
For melting water or danger of icing in air conditioning plants, cooling- and refrigerating plants, a special
and diffusion tight insulation of the complete valve possibly including the hand lever is necessary. If the
ball valve gets covered by ice, there is the danger that the valve can not be operated anymore. Special
types for low temperatures must be required in the inquiries.
If a ball valve is installed in the pipe as an end valve, the valve must be safeguarded with
suitable measures against unauthorized or unintended opening, as there is danger of injury
when closing the valve and damage or injury to persons shall be avoided.
During the installation no static or dynamic power may affect the ball valves. The ball valves
may not be used as a fixed point of the pipe. Harmful tie force, force of pressure of lateral power must be
kept away from the valves to avoid leakages and break of the body. The plastic caps have to be removed
shortly before the installation of the ball valves. The pipe must be washed to remove dirt, forge, wire
edges, zinc- and welding residues, since otherwise the ball or the sealing can be damaged.
5.1.1
Ball valves with flange connection
During the installation one must keep a special eye on the parallelism of the pipe flange as
well as on an exact snug fit. Only suitable screws, nuts and sealing should be used.
If necessary, current installation notes as well as media- and temperature compatibility have
to be taken into consideration when the sealings will be installed. The sealings must be well
centred. The screws must be tightened crosswise with specified torque
5.1.2
Ball valves with threaded ends
Connection according to EN 10226-1: The connection to the pipe will be achieved by a cylindrical
Whitworth-female thread according to EN 10226-1. It is a system at which the sealing is in the thread of
the pipe thread. Fittings or pipes with a tapered male thread and a suitable sealing shall be used as a
counterpart.
Connection according to EN ISO 228-1: The threaded joints have a cylindrical Whitworth-female thread
according to EN ISO 228-1. This is a system at which the sealing is not in the thread of the pipe thread.
Fittings or pipes with a cylindrical male thread and a sealing are required as counterparts. The sealing
has to be installed between the bearing surface of the flange sleeve and the plain fore part of the counter
part and must be pressed. The sealing surface must be metallically clean and dry. Suitable sealings have
to be used (please follow the media- and temperature compatibility) and the applicable installation notes
have to be taken into account.
The body of the ball valves has a mounted hexagon on both sides. Because of that, the ball
valves must be kept in the required installation position with a suitable tool and the screwing force
can be reversed laterally.
