SAMSON 4763-01100121 Electropneumatic Valve Positioner
The SAMSON 4763-01100121 Electropneumatic Valve Positioner is designed for accurate positioning and automatic control of single-acting pneumatic valve actuators in industrial process systems.
- Single Acting Actuator Configuration
- Proportional Pneumatic Output Control Positioner Operation
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.
Need help choosing? Send us the part number or your operating data — talk to an engineer or see full specifications.
- Fast dispatchAustralia & worldwide
- Technical supportTalk to an engineer
- 1 Year Warranty
Product Overview
The SAMSON 4763-01100121 Electropneumatic Valve Positioner is designed for accurate positioning and automatic control of single-acting pneumatic valve actuators in industrial process systems. Manufactured by SAMSON, this positioner converts an electrical control signal into a proportional pneumatic output, enabling the control valve to respond to commands from a process controller. Its mechanical feedback system continuously compares the required valve position with the actual valve stem travel, supporting responsive actuator movement, stable flow regulation, and reliable industrial operation.
Part of the SAMSON Type 4763 series, the 4763-01100121 combines an integrated I/P converter, nozzle-and-flapper mechanism, pneumatic amplifier, and adjustable measuring spring in a compact instrument housing. The positioner supports adjustable proportional response, reversible operating action, and installation on compatible linear control valve actuators. It is suitable for applications in chemical processing, oil and gas facilities, power generation, water treatment, and industrial manufacturing where dependable electropneumatic valve control is required.
Technical Specifications
|
Specification |
Value |
|---|---|
|
Product Name |
Electropneumatic Valve Positioner |
|
Manufacturer / Brand |
SAMSON |
|
Main Model |
4763-01100121 |
|
Series |
Type 4763 |
|
Product Type |
Analogue Electropneumatic Valve Positioner |
|
Control Technology |
Electropneumatic Force-Balance Control |
|
Actuator Configuration |
Single Acting |
|
Actuator Compatibility |
Linear Pneumatic Control Valve Actuators |
|
Electrical Input |
4–20 mA DC |
|
Communication Technology |
Analogue, Non-HART |
|
Operating Principle |
Current-to-Pressure Conversion with Mechanical Feedback |
|
I/P Converter Family |
SAMSON Type 6109 / 6112, Configuration Dependent |
|
Pneumatic Control Mechanism |
Nozzle-and-Flapper with Pneumatic Amplifier |
|
Valve Travel Range, Series |
7.5–60 mm |
|
Extended Travel Capability |
Up to 90 mm with Suitable Lever Extension |
|
Maximum Instrument Air Supply |
6 Bar (90 psi) |
|
Pneumatic Supply Medium |
Clean, Dry Instrument Air |
|
Position Feedback |
Mechanical Lever and Measuring Spring |
|
Positioner Operation |
Proportional Pneumatic Output Control |
|
Operating Action |
Direct or Reverse, Field Adjustable |
|
Proportional Band |
Adjustable |
|
Air Output Capacity |
Adjustable |
|
Split-Range Operation |
Supported by Suitable Configuration |
|
Housing Material |
Die-Cast Aluminium |
|
Housing Finish |
Protective Plastic Coating |
|
External Metal Components |
Stainless Steel |
|
Mounting Standard |
IEC 60534-6 / NAMUR |
|
Installation |
Compatible Cast-Yoke or Rod-Type-Yoke Control Valves |
|
Pressure Gauges |
Available According to Ordering Configuration |
|
Related Positioner Models |
4763-01200121, 4763-01200321, 4763-11300311 |
|
Related Component |
SAMSON Type 6109 I/P Converter |
|
Condition |
New |
|
Warranty |
1 Year |
Key Features
-
Electropneumatic valve positioner for precise control of single-acting pneumatic actuators.
-
Standard 4–20 mA electrical control input for compatible industrial automation systems.
-
Integrated I/P conversion mechanism for generating proportional pneumatic signals.
-
Mechanical valve travel feedback for continuous comparison of actual and required valve position.
-
Nozzle-and-flapper control mechanism for responsive pneumatic pressure adjustment.
-
Pneumatic amplifier designed to deliver suitable output pressure to the actuator.
-
Adjustable proportional band for optimising valve positioning response.
-
Field-reversible operating direction for compatible process control arrangements.
-
Supports normal-range and split-range control applications.
-
Compact die-cast aluminium housing with a protective coating.
-
Mechanical lever and measuring spring arrangement for linear valve travel measurement.
-
Supports valve travel up to 60 mm in standard configurations, with suitable extensions available for longer travel.
-
Compatible with NAMUR mounting arrangements using appropriate installation hardware.
-
Adjustable pneumatic output restriction for matching actuator response characteristics.
-
Suitable for replacement, maintenance, and refurbishment of industrial valve instrumentation.
Typical Applications
-
Industrial process control valve positioning
-
Single-acting pneumatic actuator systems
-
Oil and gas production and processing facilities
-
Chemical and petrochemical plants
-
Petroleum refining facilities
-
Power generation and utility systems
-
Water and wastewater treatment plants
-
Industrial manufacturing machinery
-
Linear globe valve automation
-
Industrial flow and pressure regulation
-
Process temperature control systems
-
Industrial valve maintenance and replacement
Shipping & Support
-
Fast dispatch – Australia & Worldwide Shipping
-
Technical assistance available
-
1-year warranty
// Your history
Recently viewed
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.