上海正阀机电有限公司
上海正阀机电有限公司
英国SpiraxSarcoSPIRA-TROL控制阀
SPIRA-TROL控制阀
Pneumatically actuated
SPIRA-TROL
For critical process control, which may be subject to high capacities
or poor steam conditions or where integration with supervisory
control systems is a requirement then a pneumatically actuated
valve should be used.
Pneumatic control valves are ideal for pressure control applications
where rapid changes in system conditions occur.
The SPIRA-TROL valve is modular in design offering many options
within one body envelope, this provides a comprehensive selection
of control valve, allowing for pressure control of steam, water, oils
and other industrial fluids.
The SPIRA-TROL valve is complemented by the availability of a full
range of controllers and transmitters.
It is this highly flexible system which allows one valve to satisfy
the needs of numerous industrial requirements.
Technical specification
Screwed ½" to 2"
Sizes Socket weld ½" to 2"
Flanged DN15 to DN200
Screwed BSP and NPT
Socket weld
End connections PN16, PN25 and PN40
Flanged ASME （ANSI） 125, 150 and 300
JIS / KS 10 and JIS / KS 20
Cast iron
SG iron
Body materials Carbon steel
Stainless steel
NACE
Maximum temperature 400°C
Maximum body
PN40 and ASME （ANSI） 300
design rating
Control pressure range 0 to 40 bar
Equal percentage
Flow Linear
characteristics Fast opening
Reduced flow including microflute characteristics
Low noise
Special trims Soft seal
Hard facing
Options
Spring loaded chevron and 'O' ring
Stem seals Graphite
Bellows
Bonnet extension
Pneumatic
Actuation Electric
Modulating
On / Off
For further technical information,
search our website using product designation SPIRA-TROL
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