加长阀杆 操作部件 接口端形式 防火
VALBART TRUNNION-MOUNTED
EXTENDED STEM
Valves installed underground
or in remote locations can be
operated with an optional
extended stem.
All the drain, vent, and emer-
gency sealant connections can
be operated using extended
connecting pipes firmly attached
to the stem protective cover.
ACTUATION
Hand-operated valves are supplied
either with a lever or gear operator.
The use of a wrench is limited to
valves equal to or smaller than:
e4” —Class 150 4" —Class 300
©3” —Class 600 *3” —Class 900
®2” —Class 1500
e 1” — Class 2500
Actuated valves can be
supplied with:
e Electric actuators
e Pneumatic actuators
e Hydraulic actuators
e Gas over oil actuators
for ESDV, SDV, BDV, MOV,
GOV, and HIPPS services
MOUNTING OPERATORS
VALVE AUTOMATION CENTER
Operator mounting should be
made at the Valbart Srl Valve
Automation Center before
shipment. If the operators will be
assembled on site, the mounting
will be made before installing the
valves in line, following Valbart
Srl instructions.
Mounting of operators on valves
already installed in line is not
recommended and will be
performed only under the
supervision of Valbart Srl.
Operator mounting flanges are
in accordance with ISO 5211-FF
/2" NPT
vent valve
bleeder
Un
7V27 NPT
vent/drain
plug
VENT VALVE AND DRAIN PLUG
Each valve 6” and larger is
supplied complete with a /2" NPT
vent valve located in the upper
part of the body and complete
with a drain plug located in the
lower part of the body.
Each valve 6 x 4” and smaller
is supplied complete with a /2"
NPT vent/drain valve located in
the lower part of the body.
ENDS
Valve ends can be manufactured
to several configurations to
comply with customer requests,
such as:
Flanged RF or RTJ to ASME B16.5
up to 24" (MSS SP-44 for 22")
and B16.47A for 26” and larger.
Other type of flanges are
available upon request.
Butt-weld ends to ASME B16.25.
Others types of weld ends
are available upon request.
Hub ends for clamped connect-
ions are available as per
customer specification.
FIRE SAFE
Valbart trunnion-mounted ball
valves are designed and certified
Fire Safe to API 6FA, API 607 and
1ISO 10497.