Idiomas disponibles
Idiomas disponibles
6
The operating pressure of the plant is to be at least 5 % lower than the closing
pressure of the valve if it is used as a pressure limiting valve. In this way, the valve
can satisfactorily close again after blowing off.
In the event of minor leaks, the valves can be made to respond by lifting the lever
for version 615/616 (the lever is not used for adjusting the valve!), or by applying
overpressure for the remaining model series. If this does not remove the leak the valve
has to be overhauled.
For the valves of the types 418 (fig. 1) and 610 (fig. 2) there is a replacement cartridge
which can be changed when the installation is pressureless. For the type 418 the
cartridge can be delivered as a replacement part which was preset and sealed at
the factory.
7
Every valve is tested prior to leaving the factory. We grant a warranty for our products
which entails the repair, free of charge, of any parts that are returned and verified
as being prematurely unsuitable for use due to defective material or manufacturing.
We shall not assume liability for any damage or other such obligations. If the factory
seal is damaged (in the case of pressure limiting valves), in the event of any incorrect
handling or installation, contamination or normal wear, warranty claims shall be null
and void.
8
Valves adjusted at the factory have the set pressure marked in a permanent manner
on the nameplate (type 418) or on a brass label that is attached to the valve.
For valves that are not adjusted at the factory the range of adjustment for the installed
spring is specified on it.
Operating and Maintenance
Fig. 1
Warranty
Identification
Fig. 2
