Mode of operation
The globe valve is adjusted by a globe valve actuator. The actuators are controlled
by a commercially available modulating or 3-point control system and move the valve
cone, which acts as a mixing device, to the opening position dictated by the positioning
signal. High closing pressures are permitted with as a result of both the partial
pressure relieving stem and the overflow channels in the valve.
Flow characteristic
An equal percentage flow characteristic is produced by the profile of the valve cone.
Installation notes
Recommended installation positions
The globe valve may be mounted upright to horizontal. It is not permissible to mount
the globe valves with the spindle pointing downwards.
90°
90°
Water quality requirements
The water quality requirements specified in VDI 2035 must be adhered to.
Belimo valves are regulating devices. For the valves to function correctly in the long
term, they must be kept free from particle debris (e.g. welding beads during installation
work).
The installation of suitable strainer is recommended.
Maintenance
Globe valves and globe valve actuators are maintenance-free.
Before any kind of service work is carried out on the actuator, it is essential to isolate
the globe valve actuator from the power supply (by disconnecting the electrical cables
if necessary). Any pumps in the part of the piping system concerned must also be
switched off and the appropriate shut-off valves closed (allow everything to cool down
first if necessary and reduce the system pressure to ambient pressure level).
The system must not be returned to service until the globe valve and the globe valve
actuator have been mounted properly in accordance with the instructions and the
pipes have been refilled in the proper manner.
Flow direction
The direction of flow, specified by an arrow on the housing, is to be complied with,
since otherwise the valve could become damaged.
A
AB
A
AB
H6..SP
Globe valve, partial pressure relief, 2-way, Flange, PN 16
Product features
www.belimo.eu
H6..SP • en-gb • 2014-11-27 • subject to changes
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