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Samson 3730 Valve Positioner 3730-2 3730-4 3730-1 Samson Positioner 3730-31000000400000 - Casting / Low Pressure / 1/4 in

SAMSON 3730-31000000400000 HART Digital Valve Positioner

SKU: 1600981600575Model: 3730-31000000400000Brand: TSA HydraulicsCategory: Pneumatic

The SAMSON 3730-31000000400000 Intelligent Digital Valve Positioner is designed for precise positioning and automated control of pneumatic valve actuators in industrial process systems.

  • Two-Wire Wiring Configuration
  • 1.4–7 Bar Pneumatic Supply Pressure
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SAMSON 3730-31000000400000 HART Digital Valve Positioner

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Product Overview

The SAMSON 3730-31000000400000 Intelligent Digital Valve Positioner is designed for precise positioning and automated control of pneumatic valve actuators in industrial process systems. Manufactured by SAMSON, this Type 3730-3 positioner uses a 4–20 mA electrical control signal with HART communication to regulate pneumatic output pressure and maintain accurate valve positioning. Its microprocessor-based control technology supports responsive actuator operation, stable flow regulation, and reliable process control.

Part of the SAMSON Type 3730 series, the positioner features automatic initialization, an integrated LCD display, a rotary pushbutton, and EXPERTplus diagnostic functions. It supports installation on compatible linear and rotary pneumatic actuators using suitable mounting accessories. Its IP66-rated housing and digital communication capabilities make it suitable for oil and gas processing, chemical manufacturing, power generation, water treatment, and industrial automation. 

Technical Specifications

Specification

Value

Product Name

Intelligent Digital Valve Positioner

Manufacturer / Brand

SAMSON

Model Number

3730-31000000400000

Series

Type 3730-3

Product Type

Digital Electropneumatic Valve Positioner

Input Signal

4–20 mA DC

Communication Protocol

HART

Wiring Configuration

Two-Wire

Actuator Compatibility

Pneumatic Linear and Rotary Actuators

Pneumatic Supply Pressure

1.4–7 Bar

Pneumatic Output Pressure

0 Bar up to Supply Pressure

Direct Attachment Travel

3.6–30 mm

NAMUR Attachment Travel

3.6–300 mm

Rotary Operating Angle

24–100°

Calibration

Automatic Initialization

Local Display

LCD with Rotary Pushbutton

Diagnostics

EXPERTplus

Configuration Software

SAMSON TROVIS-VIEW

Enclosure Protection

IP66 / NEMA 4X

Standard Housing Material

Aluminium

Electrical Connection

M20 × 1.5

Operating Medium

Clean, Dry Instrument Air

Related Models

3730-1, 3730-2, 3730-4

Condition

New

Warranty

1 Year 

Key Features

Intelligent digital valve positioning with HART communication

Standard 4–20 mA electrical control input

Automatic initialization for simplified commissioning

Integrated LCD display and rotary pushbutton

EXPERTplus diagnostics for valve performance monitoring

Microprocessor-based control for accurate positioning

Adjustable pneumatic output pressure limits

IP66/NEMA 4X enclosure protection

Compatible with linear and rotary pneumatic actuators

Supports configuration through SAMSON TROVIS-VIEW software

Typical Applications

Industrial pneumatic control valve positioning

Oil and gas production and processing facilities

Chemical and petrochemical manufacturing plants

Power generation and utility systems

Water and wastewater treatment facilities

Industrial manufacturing and automation

Linear globe valve positioning

Rotary ball and butterfly valve control

Industrial flow and pressure regulation

HART-compatible process control systems

Shipping & Support

Fast dispatch – Australia & Worldwide Shipping

Technical assistance available

1-year warranty

// FAQs

Questions about this part?

Our engineers can confirm fit before you order. Contact support.

How do I find the right part for my system?

Three options. Search by part number if you have the OEM code from Parker, Danfoss, Linde, Kawasaki, Kayaba or Grundfos — our search recognises both manufacturer codes and aftermarket cross-references. Browse by category if you know the component type (pumps, valves, cylinders, etc.). Or send a spec sheet to our engineering desk and we'll cross-reference against our 3,000+ SKU catalogue within one business day.

Can you help me size a pump or valve for my application?

Yes — sizing support is included with every order. Send us your operating pressure, flow rate, viscosity, drive speed and duty cycle, and our engineers will recommend a suitable component from our catalogue with full datasheets. We don't custom-build parts ourselves, but we can spec the right OEM component for almost any standard industrial application.

Can you cross-reference a discontinued part?

Yes — cross-referencing is one of the things we do most. Send us the original part number (even if the manufacturer has dropped it) and our engineering desk will identify a current equivalent or compatible alternative. Cross-reference lookups are free and typically come back within 4 business hours.