Xiangjing (Shanghai) M&E Technology Co., Ltd
| Delivery Time | 5~8 weeks |
| Application | General,industrial |
| Standard | DIN,ANSI,BS,ASTM |
| Payment Terms | T/T |
| Material | Aluminum Alloy |
| Type | Control,pneumatic |
| Power | Pneumatic,electric |
| Supply Ability | 2,750 units per year |
| Standard or nonstandard | Standard |
| Packaging Details | carton or wooden crate, 30 × 30 × 30 cm |
| Structure | Control,Angle stroke |
| Model Number | 4763 |
| Brand Name | Samson 4763 |
View Detail Information
Explore similar products
Foxboro SRD991 Series Smart Digital Valve Positioner HART 4-20mA for Control
Advanced Self-Diagnostics and IP66 Ingress Protection Control Valve Positioner
Original Masoneilan SVI2 Smart Valve Positioner China Pressure Balanced Single
Pressure Reducing Valve KOSO PRF300 PRF400 And EPA 801 Valve Positioner With
Product Specification
| Delivery Time | 5~8 weeks | Application | General,industrial |
| Standard | DIN,ANSI,BS,ASTM | Payment Terms | T/T |
| Material | Aluminum Alloy | Type | Control,pneumatic |
| Power | Pneumatic,electric | Supply Ability | 2,750 units per year |
| Standard or nonstandard | Standard | Packaging Details | carton or wooden crate, 30 × 30 × 30 cm |
| Structure | Control,Angle stroke | Model Number | 4763 |
| Brand Name | Samson 4763 | ||
| High Light | 4-20mA Electropneumatic Positioner ，Die-cast Aluminum Valve Positioner ，Compact Design Pneumatic Positioner | ||
Product Overview
The Samson 4763 is a compact electropneumatic positioner intended for mounting on pneumatic control valves. It is a single-acting instrument that compares the control system's input signal with the actual valve stem position and then sends a corresponding pneumatic pressure to the actuator. The housing is die-cast aluminum, and the unit can be mounted in any orientation without being affected by mechanical vibration. The operating direction can be reversed in the field. Adjustable proportional band and air output capacity allow fine-tuning for specific applications. The 4763 accepts a 4-20mA or 1-5mA electrical input. It uses a force-balance flapper-nozzle system. Optional pressure gauges allow monitoring of supply air and signal pressure.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Samson |
| Communication Protocol | HART (optional) |
| Input Signal | 4(0) to 20 mA; 1 to 5 mA |
| Data Interface | Wired |
| Diagnostics | Without valve diagnostics (standard) |
| Supply Pressure | 1.4 to 6 bar (20 to 90 psi) |
| Mounting Type | Linear actuator, single acting; Rotary (via attachment) |
| Rated Travel | 7.5 to 90 mm |
| Opening Angle | Up to 90° |
| Operating Temperature | -20 to +80°C |
| Enclosure Protection | IP 54 |
| Housing Material | Die-cast aluminum |
| Air Connections | G 1/4 |
| Sensitivity | <0.1% |
| Hysteresis | <0.5% |
| Explosion Protection | Type 4763-0: Without; Type 4763-1: ATEX Ex ia IIC T6; Type 4763-8: EEx nA |
| Certifications | ATEX, IECEx (depending on version) |
| Communication Software | Not applicable |
Application Industry
The Samson 4763 is used in chemical and petrochemical processing, power generation, pulp and paper, and general industrial automation. It is suitable for throttling service and applications requiring precise valve positioning. The compact design and vibration resistance make it suitable for demanding process environments.
Common Problems
Positioner does not respond to input signal: Check supply pressure is within 1.4~6 bar. Verify pneumatic connections are secure. Check that the nozzle assembly is not clogged.
Valve position does not match input signal: Check the proportional band (P-band) setting. Verify that the operating direction (direct or reverse) is correctly set. Recalibrate the zero point.
Erratic operation or oscillation: Inspect for air leaks in tubing and fittings. Check for excessive friction in valve packing or actuator. Verify that the air output capacity setting is appropriate.
Zero point calibration error: The zero point is out of range. Check mounting and re-adjust the zero point.
Low supply pressure: Verify that supply pressure meets the minimum requirement of 1.4 bar. Check the air supply regulator.
Replacement Models
The Samson 4763 will be discontinued in the near future. The direct replacement is the TROVIS 3730-1, which is the next-generation smart positioner with HART communication and enhanced features. The Type 3767 is also available as an alternative. The 4763 is a predecessor to the 3730 series and shares similar mounting compatibility. For cross-vendor alternatives, verify actuator mounting, travel range, and communication protocol before ordering.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2015
Total Annual:
30,000,000-50,000,000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
Xiangjing (Shanghai) - Leading Distributor of Pneumatic and Electric Control Valves Established in Shanghai, China, Xiangjing(Shanghai) Mechanical and Electrical Tech Co.,Ltd has been a trusted distributor of high-quality pneumatic and electric control valves for many years. With extensive industr... Xiangjing (Shanghai) - Leading Distributor of Pneumatic and Electric Control Valves Established in Shanghai, China, Xiangjing(Shanghai) Mechanical and Electrical Tech Co.,Ltd has been a trusted distributor of high-quality pneumatic and electric control valves for many years. With extensive industr...
Get in touch with us
Leave a Message, we will call you back quickly!