Control systems > Positioners, controllers and sensors
Spirax Sarco SP7-10, SP7-11 and SP7-12 Smart Positioners
Spirax Sarco SP7-10, SP7-11 and SP7-12 smart positioners control pneumatic linear or rotary actuators and support 4-20 mA, HART, PROFIBUS PA or Foundation Fieldbus communication routes.
Quick facts
SP7 belongs in the Spirax Sarco positioners, controllers and sensors range. The product documentation groups SP7-10, SP7-11 and SP7-12 together, so this page treats them as one documented SP7-1 smart positioner model group without separating each communication version.
The SP7-1 documentation describes these smart positioners as electronically configurable devices for mounting on pneumatic linear or rotary actuators. The documentation also confirms these communication routes:
SP7-10: 4-20 mA input, with optional HART communicationSP7-11: PROFIBUS PA communicationSP7-12: Foundation Fieldbus communicationThe top specification choices follow the SP7-1 communication variants: SP7-10, SP7-11 and SP7-12. Accessory or package rows that bundle installation kits, FR20A, pressure gauges or complete control valve packages are not used as selectable SP7 positioner specifications here.
Before final specification, confirm the required communication route, hazardous-area requirement, actuator type, NAMUR mounting interface, air preparation package, pressure gauge requirement and whether the positioner is being ordered alone or as part of a complete control valve package.
The Spirax Sarco SX80 is a 1/16 DIN panel mount process controller offering universal input for RTD and thermocouple signals, universal output with VMD 3-point, 4-20 mA analog, relay and logic, PID auto-tuning, 3 setpoints and a built-in 18 VDC transmitter power supply.
The Spirax Sarco SP500 is an enhanced loop-powered electro-pneumatic smart positioner for linear and rotary pneumatic valves. Building on the SP400 platform, it adds optional HART communication, diagnostic data logging, retransmission capability and a 24V power board, while retaining the same 4-20 mA input, Hall effect non-contact feedback and piezo valve technology.
The Spirax Sarco SP400 is a loop-powered electro-pneumatic valve positioner for linear and 90 degree rotary pneumatic valves. It uses a 4-20 mA input signal, non-contact valve position feedback and automatic air output correction to help the valve reach and hold the demanded position.
The Spirax Sarco EP500 is a standard electro-pneumatic positioner for linear and rotary pneumatic control valves. It uses a 4-20 mA input signal with split-range capability, integral pressure gauges, central or offset mounting and a quick-fit electrical connection cap to deliver reliable position feedback correction without the communication and diagnostic features of the SP400 and SP500 smart positioners.
SP7 selection usually sits inside a complete valve package decision that also includes the actuator, control valve, air preparation and feedback requirements.
Return to positioners, controllers and sensors when you need to compare SP7 with adjacent Spirax Sarco feedback and control products.
Review pneumatic actuators when the immediate question is linear or rotary motion, single-acting or double-acting operation and mounting compatibility.
Use control valve pages when the project needs the valve body, actuator, positioner, FR20A and feedback accessories considered together.
