Siemens VGG10.654U Технические инструкции - Страница 2
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Technical Instructions
Document Number CC1N7636us
February 09, 2016
UL listed, FM approved, CSA certified, IRI approvable, ISO 9001 and 14000 certified.
Features
¼" NPT pressure taps on the inlet and outlet (see Table 2 for details)
Stainless steel mesh inlet filter protects the valve seat as well as downstream components
Dual stem guides ensure precise disc alignment and tight shut-off
Valves in connection with SKPxx.xxxUx actuators open slowly and close rapidly
Contoured valve disc provides smooth release of gas and stable regulating control
Application
All VGG10.xxxU valves can be combined with any SKPxx.xxxUx series actuator. The actuator
can be mounted while the valve is installed and under pressure.
SKPxx.xxxUx regulating actuators are applicable for both low and high supply gas pressure
applications, eliminating excessive regulator inventories. Maximum pressure ratings vary
with valve size (see Table 2).
All VGG10.xxxU valves perform these functions in combination with each of the following
actuators:
SKP15.xxxUx Safety shut-off
SKP25.xxxUx Safety shut-off and constant pressure regulation or zero governor
SKP55.xxxUx Safety shut-off, pressure regulation and differential pressure air-gas ratio
SKP75.xxxUx Safety shut-off, pressure regulation and adjustable air/gas ratio control
Since more than one function can be performed by a single valve, fewer components and
fittings are required, significantly reducing both the size and weight of the gas train. In
addition, smaller diameter gas valves can be used. For details on valve sizing refer to the flow
charts (figures 2 and 3).
Page 2
CE, Australian and Japanese approved versions available
control
CAUTION:
Do not oversize valves equipped with a regulating SKP25.xxxUx / SKP55.xxxUx /
SKP75.xxxUx actuator. Oversizing may limit turndown and could cause oscillations.
VGG Series Valves
Siemens AG Building Technologies Division