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上海迈倍机电设备有限公司
The SPS & SPD series PNEUMATIC ACTUATORSPNEUMATIC ACTUATORS SINGLE & DOUBLE ACTINGThe SPS & SPD series, heavy duty high performance design actuators, are for ProControl the long-standing products of the range.The reliability and firmness that distinguish them arise from a constant innovation research combined with the experience gained over the years.
CATEGORY: PNEUMATIC ACTUATOR
TYPE: QUARTER TURN
Fabricated entirely from carbon steel.
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.
Carbon steel spring cartridge (only for single acting) with safety facility which allows safe installation and removal of the whole cartridge assembly.
AISI 316SS mechanical position indicator (fully sealed IP68 to avoid ingress into the scotch yoke area) 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 and high strength alloy steel chromium plated thrust reaction bar which guides the scotch 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 12μm).
Alloy steel end travel stops allow for accurate angular stroke adjustment.
Integral manual override facilities.
Design allows 4 x 90° actuator rotation.
TECHNICAL SPECIFICATIONS
Supply pressure up to 12 bar design.
Actuator torque output up to 1.000.000 Nm for single acting and up to 2.000.000 Nm for double acting.
Spring starting torque up to 400.000 Nm.
Spring ending torque up to 250.000 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.
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