ASCO Solenoid Valves and Samson 3730-5 Electropneumatic Valve Positioner with FOUNDATION Fieldbus Communication

The SAMSON Type 3730-5 FOUNDATION™ Fieldbus positioner combines simple mounting with powerful digital control. It attaches directly to SAMSON actuators or via NAMUR interface and initializes automatically after setting travel and fail-safe position. The positioner is ready for operation within minutes, making it ideal for fast retrofits and new installations.

• Direct attachment to Type 3277 actuator or IEC 60534-6 (NAMUR) mounting.
• One-button initialization (MAX, NOM, MAN, or SUB modes).
• Volume restriction Q for quick adaptation to actuator size.
• Binary inputs and optional limit switch for flexible I/O.
• Local display and rotary pushbutton for intuitive operation.
• Reversing amplifier option for double-acting rotary actuators.

• Travel range: Adjustable 1:5 ratio within nominal 3.6–200 mm or 24°–100°
• Supply air: 1.4–6 bar, quality ISO 8573-1 Class 3
• Bus interface: EN 61158-2, 31.25 kbit/s
• Air delivery: ≥8.5 m³/h (pressurized), ≤14 m³/h (vented) at 6 bar
• Ambient temperature: –40 to +80 °C
• Protection: IP 65, optional explosionproof versions
• Weight: Approx. 1.0 kg

• Quick retrofits on existing control valves.
• Modular skids in chemical plants.
• Food & beverage automation requiring fast commissioning.
• Water treatment valves with simple NAMUR mounting.
• Compact installations in confined spaces.

• How fast can I start up? Press INIT key after setting travel and fail-safe position.
• Do I need special tools? Only a standard tool for the INIT key.
• Is it compatible with my actuator? Yes, direct or NAMUR for linear/rotary types.
• What if I change the volume restriction? Re-initialize for optimal performance.
• Can I mount it on rotary actuators? Yes, with coupling wheel and optional reversing amplifier.

Phone/WeChat/WhatsApp: +8613916209596

Email: svetama@gbsxj.com

• SAMSON Type 3277-5 actuator
• Type 3510 micro-flow valve
• Type 3730-1 analog positioner
• SAMSON mounting kits
• Type 3278 rotary actuator