Samson 3725-11 Intelligent Valve Positioner Controller New Original Stock

• Customization: Available
• Temperature: -40-80ºC
• Media: Gas, Oil, Water, Acid
• Model NO.: 3725-11
• Standard: Standard
• Connection Mode: 1/4NPT
• Power: Aerodynamic
• Material: Aluminium
• Type: Controllers
• Weights: 3kg
• Warranty: One Year
• Single- and Double-Acting: Single
• Intelligent or Not: Yes
• Transport Package: Carton Packaging
• Specification: 50*50*40
• Trademark: SAMSON
• Origin: German
• HS Code: 8481901000
• Production Capacity: 100

Product Description

Clarification

1. Product Overview
The SAMSON 3725 series is an intelligent digital electro-pneumatic valve positioner designed for pneumatic control valves, supporting HART communication protocol. It is widely used in industrial automation sectors including oil & gas, chemical, and power generation. Its microprocessor-based design enables precise valve positioning for accurate flow, pressure, and process variable control.

 
2. Key Features
High-precision control: Positioning accuracy of ±0.5%, compatible with both linear (3.75-200mm) and rotary (24°-100°) valves.
Non-contact feedback: Utilizes magneto-resistive sensors for wear-free position detection and extended service life.
Modular construction: Electronics module can be replaced without disconnecting pneumatic lines or wiring.
Multi-protocol support: Options for HART (3725-3), Profibus PA (3725-4), and Foundation Fieldbus (3725-5) communication.
Robust design:

IP66 protection against dust and water ingress
Operating temperature range: -40°C to +85°C
Explosion-proof variants: ATEX (3725-110), GOST (3725-113), 
 
3. Technical Specifications
Parameter
Specification
Input signal
4-20mA HART
Supply pressure
1.4-6 bar (20-90 psi)
Output pressure
0-6 bar (0-90 psi)
Mounting standards
VDI/VDE 3845 (rotary), NAMUR (IEC 60534-6-1)
Diagnostics
EXPERTplus diagnostics compliant with NAMUR NE 107
 
4. Typical Applications
Oil & Gas: Flow control valves in refineries
Power Generation: Boiler and turbine valve regulation
Water Treatment: Precise control of water quality valves
 
5. Key Advantages
Smart functionality: Features auto-calibration, remote monitoring and predictive maintenance capabilities
High reliability: Contactless design withstands vibration, steam exposure and harsh environments
Flexible integration: Compatible with SAMSON 3277 actuators and V2001 valve series
For detailed technical documentation, please refer to SAMSON official resources or contact authorized distributors.

Specification

Valve positioner diagnostic level
single- and double-acting	Single
Weight	3kg
Material	aluminium
With or without feedback	YES

Company Profile

Certifications

FAQ

Q: Is the product authentic?
A: All the products we sell are new and original genuine products with one year warranty.

Q: How long is the product delivery time?
A: We have our own warehouse and a large number of stock products, regular models we have in stock, special models we need to factory order and can be delivered quickly.

Q:Do you have a price advantage?
A: Some of the products we are the authorised agent in China region, the price we all have competitive advantage.