Xiangjing (Shanghai) M&E Technology Co., Ltd
| Analog Input Signal | 4-20 mA DC |
| Payment Terms | T/T |
| Valve type | Ball Valve, Butterfly Valve, Check Valve, Gate Valve, globe valve, plug valve |
| Packaging Details | Cardboard box/Wooden crate |
| Communication Protocol | HART 5 or HART 7 |
| Electrical Connection | 1 /2 NPT internal or M20 |
| Delivery Time | 6~8 weeks |
| Available Mounting | Sliding-stem Linear; Quarter-turn Rotary Applications |
| Supply Ability | 1000 sets per year |
| Place of Origin | Germany |
| Brand Name | Samson |
| Model Number | 3730-3 |
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Product Specification
| Analog Input Signal | 4-20 mA DC | Payment Terms | T/T |
| Valve type | Ball Valve, Butterfly Valve, Check Valve, Gate Valve, globe valve, plug valve | Packaging Details | Cardboard box/Wooden crate |
| Communication Protocol | HART 5 or HART 7 | Electrical Connection | 1 /2 NPT internal or M20 |
| Delivery Time | 6~8 weeks | Available Mounting | Sliding-stem Linear; Quarter-turn Rotary Applications |
| Supply Ability | 1000 sets per year | Place of Origin | Germany |
| Brand Name | Samson | Model Number | 3730-3 |
| High Light | Samson electropneumatic valve positioner ，Control valve positioner 4-20MA ，Gas valve positioner with warranty | ||
The Samson 3730-3 is a single-acting electropneumatic positioner for linear and rotary pneumatic actuators. It converts a 4–20 mA control signal into precise pneumatic output pressure and features HART communication. It is widely used in process plants for reliable throttling control with simple local operation and automatic adaptation to the valve.
| Parameter | Value |
|---|---|
| Input Signal | 4–20 mA DC, two-wire, reverse polarity protection |
| Minimum Current | 3.6 mA (display), 3.8 mA (operation) |
| Supply Air | 1.4–7 bar (20–105 psi) |
| Air Quality | ISO 8573-1 Class 4 (particles), Class 3 (oil), dew point 10 K below ambient |
| Hysteresis | ≤0.3 % |
| Sensitivity | ≤0.1 % |
| Ambient Temperature | –20 to +80 °C (–4 to +176 °F); –45 to +80 °C with metal cable gland |
| Degree of Protection | IP66 |
| Housing Material | Aluminum or stainless steel 1.4581 |
| Weight | Approx. 1.0 kg |
Q: Does it auto-calibrate? A: Yes – automatic adaptation to valve and actuator.
Q: What communication protocol? A: HART (4–20 mA).
Email: edwardzhao@gbsxj.com
Phone/WeChat/WhatsApp: +8615000725058
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
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