Pressure Testing; Adjustments For Stroke Limiter (Option) - GF 604 Bedienungsanleitung

Instruction manual
8.1

Pressure testing

Before initial operation of the system perform a pressure test of the product.
Make sure that the test pressure may not exceed the PN of the diaphragm valve. During
the pressure test check the diaphragm valve and connections for leaks.
NOTICE
Diaphragm Valve pressure testing has to follow the same regulations as the piping system!
8.2

Adjustments for stroke limiter (option)

As an option there are stroke limiters available for the function FC, FO and DA.
All valves equipped with a stroke limiter are delivered without any adjustments of
the stroke limiter and correlate with the described function FC, FO or DA.
To adjust the stroke limiter use the following control pressure [bar]
F F unction FC: Control pressure max. 6 bar (see Chapter 6.3, Control pressure &
control volume).
Function FO: Control pressure max. 6 bar (see Chapter 6.3, Control pressure &
control volume).
Function DA: No control pressure during the adjustment process.
Reduce the valve stroke: Turn piston (1) clockwise with a screwdriver
(360 ° = ~ 1mm valve stroke)
Increase the valve stroke: Turn Piston (1) counterclockwise with a screwdriver
(360 ° = ~ 1mm valve stroke)
*
* Maximum valve stroke
DN Actuator
Size Variant
15 1 604/605
Valve stroke Max. Actuating torque
Target (mm) Newton Meter [NM]
6.0 4.0
Initial operation
37