Oil Gas Valve Positioner Samson Control Valve 3730 Type 3730-3 3730-5 Electropneumatic 4-20MA Valve Positioner
Price:
US $950.00 - 1355.00/ Set
MOQ:
1
Delivery Time:
6~8 weeks
Brand:
Samson
Product Description
Samson Type 3730-3 Electropneumatic Valve Positioner
Product Overview
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.
Features
- Self-calibrating with automatic start-up
- Intuitive menu navigation via rotary pushbutton
- Alphanumeric LCD display readable in any position
- HART communication for configuration and diagnostics
- Tight-closing function can be activated
- Non-contact travel sensor
- Low steady-state air consumption
- Unaffected by vibration and steam hammering
Technical Specifications
| 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 |
Applications
- Pneumatic globe control valves
- Pneumatic rotary actuators
- Throttling service in process plants
- Hazardous areas with appropriate approvals
FAQ
Q: Does it auto-calibrate? A: Yes – automatic adaptation to valve and actuator.
Q: What communication protocol? A: HART (4–20 mA).
Contact Us
Email: edwardzhao@gbsxj.com
Phone/WeChat/WhatsApp: +8615000725058
Related Products
- Samson 3730-2 (PROFIBUS PA version)
- Samson 3730-4 (FOUNDATION Fieldbus)
- Samson 3277 pneumatic actuator
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Xiangjing (Shanghai) M&E Technology Co., Ltd
Location
Building 6, 98 Fulianyi Road, Yanghang Town, Baoshan District
Contact Person
Edward Zhao