Tabla de contenido
Publicidad
2
General Notes
Safety valves are high-quality fittings which require a particularly careful handling.
The sealing surfaces on the seal and ball are micro-finished in order to achieve the
necessary tightness. Always avoid the penetration of foreign particles into the valve
during assembly and during the operation. The tightness of a safety valve can be
impaired when using hemp, Teflon tape, as well as through welding beads, among
other things. Rough handling of the finished valve during storage, transport and
assembly can result in a valve leaking. If the valves are painted, make sure that the
sliding parts do not come into contact with the paint.
3
Range of Application
For details on the range of application of the individual versions please refer to the
datasheets of the manufacturer.
The durability of the sealing materials indicated shall be tested by the operator for
the used flow medium and/or cleaning agent in each case.
4
Installation and Assembly
Spring-loaded safety valves are to be installed with the spring bonnet pointing
vertically upward. Deviations from this installation position are possible in specific
cases, however, they shall always be discussed with the manufacturing company.
To guarantee perfect function of the valves, they must be mounted so that no
unauthorized static, dynamic or thermal loads can take effect. Suitable protective
measures must be taken if escaping medium can result in direct or indirect risk to
persons or the environment if the body responds. Always pay attention to possible
fumes discharging from the relief bores in the spring bonnet.
Supply line
Supply line supports for safety valves should be as short as possible and are to be
designed so that no higher pressure losses than max. 3% of the response pressure
can occur at full valve load. The connection is to be designed as short as possible to
minimize the dead space.
Condensation drainage line
In the event of possible condensate formation the pipes or the valves themselves
must be fitted at their lowest point with a continuously operating condensate
discharge device. Please make sure that the condensation or escaping media
is safely drained away. The body, lines and sound absorbers must be protected
against freezing.
Blow off line / counterpressure
The safety valves blow off line is to be designed so that the necessary mass flow
can be discharged depressurized when blowing off. The blow off line must be kept
as short as possible for simple cleaning or must be designed to be removable or
alternatively with an inclination of at least 3° in the drainage direction. For assembly
of the supply line and blow off line, only the right standardized counter-connections
and sealing rings are to be used for connections available on the valve and ones
suitable for contact with food and other delicate goods.
Assembly and maintenance instructions - 4000
www.goetze-armaturen.de
Publicidad
Tabla de contenido
