SPSK & SPDK series

COMPACT PNEUMATIC ACTUATORS SINGLE & DOUBLE ACTING

ProControl has created the SPS-K & SPD-K series actuators based on the markets requirements for a new compact heavy duty high performance design actuator. For single acting models the cylinder assembly also contains the spring, thus the advantage of a compact design

KEY FEATURES

• 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.