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Fabricated
entirely from low temperature carbon steel according to ASTM A352 gr. LCB and
ASTM A350 LF2.
Totally
enclosed weatherproof housing.
Scotch
yoke mechanism to suit valve torque requirements.
Relief
vent to expel undesired overpressure.
Low
pressure pneumatic cylinder for supply pressures up to 12 bar design suitable
for instrument air or sweet / inert gas applications or special application
with material according to NACE requirements for sour gas supply medium.
Carbon
steel piston with dynamic floating O-ring seals coupled with lubricating piston
guide rings.
Alloy
steel spring (only for single acting).
17.4
PH shaft and mechanical position indicator (fully sealed IP68 to avoid ingress
into the scotch yoke area) and square male output shaft complete with VDI/VDE
3845 NAMUR drive slot for monitoring devices.
Bronze
sliding blocks which ensure minimum friction, allowing for a long service life
and reducing maintenance costs.
Bronze
thrust bearings which guides the actuators shaft & yoke throughout its
stroke and supports all transverse loads generated.
ASTM
A 320 L7 alloy steel tie rods, with standard electrolytic zinc coating
according to ASTM B633 FeZn 12 (thickness 12 μm).
AISI
316 stainless steel end travel stops allow for accurate angular stroke
adjustment.
Integral
manual override facilities.
Design
allows 4 x 90° actuator rotation.
AISI
316 stainless steel external bolting.
TECHNICAL SPECIFICATIONS
Supply
pressure up to 12 bar design.
Actuator
torque output up to 1.000 Nm.
Standard
operating temperature range -30°C / +100°C.
Special
low temperature application up to -60°C.
Special
high temperature application up to +200°C.
All
ProControl pressure containing parts are designed according to ASME VIII div.1
and EN 13445.
All
ProControl actuators are designed for 30 years’ service life.
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