Skip to product information
Samson 3730-2100100040000000.04 Smart Valve Positioner New Original Stock - Cast Iron / VALVE PARTS

SAMSON 3730-2100100040000000.04 Smart Electropneumatic Valve Positioner Without HART

SKU: 1601039936874Model: 3730-2100100040000000.04Brand: TSA HydraulicsCategory: Valves

The SAMSON 3730-2100100040000000.04 Smart Electropneumatic Valve Positioner is designed for accurate positioning and automated control of pneumatic valve actuators in industrial process systems.

  • Single Acting; Double Acting with Reversing Amplifier Actuator Configuration
  • 1.4–7 Bar (20–105 psi) Supply Air Pressure
$6,280.12
Shipping calculated at checkout.

Need help applying this product? Our engineers can help select the right equipment and design a system around your requirements. Request a quote or discuss your application with us.

// Request a quote

SAMSON 3730-2100100040000000.04 Smart Electropneumatic Valve Positioner Without HART

Sent straight to our sales team. We usually reply within one business day.

Need help choosing? Send us the part number or your operating data — talk to an engineer or see full specifications.

Product Overview

The SAMSON 3730-2100100040000000.04 Smart Electropneumatic Valve Positioner is designed for accurate positioning and automated control of pneumatic valve actuators in industrial process systems. Part of the SAMSON Series 3730, this intelligent positioner operates using a standard 4–20 mA electrical control signal to regulate pneumatic output pressure and maintain precise valve positioning. Its microprocessor-based control technology supports responsive actuator movement, stable flow regulation, and reliable performance in industrial environments requiring consistent process control.

The SAMSON Type 3730-2 features automatic initialisation, an integrated LCD display, configurable control characteristics, and advanced diagnostic functions for convenient operation and maintenance. Its electropneumatic design combines an electronic control unit, current-to-pressure converter, and pneumatic air capacity booster to deliver accurate actuator control. Unlike the HART-enabled Type 3730-3, the Type 3730-2 uses local configuration and SAMSON's serial communication interface. Its versatile mounting options make it suitable for pneumatic linear and rotary actuators used in manufacturing, chemical processing, oil and gas facilities, power generation, and industrial fluid control applications. 

Technical Specifications

Specification

Value

Product Name

Smart Electropneumatic Valve Positioner

Brand

SAMSON

Manufacturer

SAMSON Controls

Model

3730-2100100040000000.04

Series

3730

Positioner Type

Type 3730-2

Product Type

Intelligent Electropneumatic Valve Positioner

Control Technology

Microprocessor-Based Electropneumatic

Operating Principle

Electronic Valve Position Control

Actuator Configuration

Single Acting; Double Acting with Reversing Amplifier

Actuator Compatibility

Pneumatic Linear and Rotary Actuators

Input Signal

4–20 mA DC

Communication Protocol

Without HART

Local Communication

SAMSON SSP Serial Interface

Operating Mode

Two-Wire, Loop Powered

Supply Air Pressure

1.4–7 Bar (20–105 psi)

Pneumatic Output Pressure

0 Bar up to Supply Pressure

Linear Valve Travel

3.6–200 mm, Depending on Mounting

Rotary Opening Angle

24–100°

Control Characteristic

Linear, Equal Percentage, Reverse Equal Percentage

Direction of Action

Reversible

Control Function

Automatic Valve Position Regulation

Display Type

LCD

Initialisation

Automatic

Diagnostics

Status Monitoring, Fault Alarms and Travel Diagnostics

Software Interface

SAMSON TROVIS-VIEW

Electrical Connection

M20 × 1.5

Protection Rating

IP66 / NEMA 4X

Operating Temperature

-20°C to +80°C, Standard Version

Mounting Options

Direct Attachment, NAMUR and Rotary Mounting

Mounting Standards

IEC 60534-6-1, VDI/VDE 3845

Working Medium

Clean, Dry Instrument Air

Application Scope

Industrial Pneumatic Valve Control Systems

Condition

New

Warranty

1 Year 

Key Features

  • Intelligent electropneumatic positioning for accurate industrial pneumatic control valve operation.

  • Standard 4–20 mA electrical input signal for integration into industrial automation systems.

  • Microprocessor-based control technology for responsive and consistent valve positioning.

  • Automatic initialisation for simplified installation, setup, and commissioning.

  • Integrated LCD display for convenient local parameter configuration and status monitoring.

  • SAMSON SSP serial interface for configuration using compatible TROVIS-VIEW software.

  • Adjustable linear, equal percentage, and reverse equal percentage control characteristics.

  • Supply air pressure range of 1.4–7 bar for compatible pneumatic actuator systems.

  • Supports linear and rotary pneumatic control valve applications.

  • Reversible direction of action for flexible industrial valve control.

  • Integrated pneumatic air capacity booster for responsive actuator movement.

  • Configurable software limit switches and fault alarm functions for process monitoring.

  • Advanced diagnostic capabilities for monitoring valve travel, control deviations, and instrument performance.

  • IP66 enclosure protection against dust and water ingress.

  • Flexible mounting arrangements for compatible SAMSON and other industrial control valve actuators.

  • Suitable for continuous-duty industrial process automation applications.

Typical Applications

  • Industrial process automation systems

  • Pneumatic control valve assemblies

  • Oil and gas production and processing facilities

  • Chemical and petrochemical plants

  • Power generation and utility systems

  • Water and wastewater treatment facilities

  • Industrial manufacturing equipment

  • Pneumatic linear actuator positioning

  • Rotary control valve automation

  • Industrial flow and pressure regulation systems

  • Steam and process fluid control systems

  • Industrial process instrumentation

  • Automated production and fluid handling equipment

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.