Product Overview
The SAMSON 3241 / 3730-4 is a pneumatically actuated globe control valve assembly engineered for precise throttling and shut-off service in industrial process control loops. The Type 3241 globe valve body is combined with the Type 3730-4 electropneumatic valve positioner, forming a complete closed-loop control package. The valve operates on a linear globe plug principle, where a pneumatically driven actuator strokes the plug against a seat to modulate flow with high accuracy. The integrated Type 3730-4 positioner receives a standard electrical control signal and adjusts the pneumatic output to the actuator, ensuring the valve stem position corresponds exactly to the commanded setpoint. This assembly is widely deployed in chemical, petrochemical, and general process industries where reliable flow regulation, tight shut-off, and fast dynamic response are essential.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Globe Control Valve with Electropneumatic Positioner |
| Model Designation | SAMSON Type 3241 / 3730-4 |
| Valve Body Type | Straight-through globe valve, single-seat or double-seat configuration |
| Actuator Type | Pneumatic diaphragm actuator (spring-return, air-to-open or air-to-close) |
| Positioner Type | Type 3730-4 electropneumatic positioner with HART communication |
| Control Signal Input | 4–20 mA standard analog signal (HART compatible) |
| Supply Air Pressure | Typically 1.4–6 bar (20–90 psi), depending on actuator sizing |
| Operating Pressure | Standard Industrial Grade (up to rated bar per body rating) |
| Nominal Sizes | DN 15 to DN 300 (½” to 12″) |
| Pressure Ratings | PN 10 / PN 16 / PN 25 / PN 40, or ANSI Class 150 / 300 |
| Characteristic | Linear or equal-percentage plug characteristic |
Engineering Features & Advantages
- Precision Performance: The pneumatic globe control valve with electropneumatic positioner delivers precise, repeatable performance with low hysteresis and stable control across the full working range.
- Industrial Reliability: Constructed for continuous duty with durable, corrosion-resistant materials and proven engineering for maximum system uptime.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original SAMSON OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Rated Capability: Rated for pressure ratings of typically 1.4–6 bar (20–90 psi), depending on actuator sizing, supporting stable operation across the full working range.
Typical Industrial Applications
This assembly is widely deployed in chemical, petrochemical, and general process industries where reliable flow regulation, tight shut-off, and fast dynamic response are essential.
PRODUCT IMAGES
SAMSON 3241 / 3730-4 Pneumatic Globe Control Valve with Positioner
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine SAMSON 3241 / 3730-4 Pneumatic Control Valve. This Germany-made 24 VDC hydraulic component features a globe valve design with integrated positioner, delivering leak-free, reliable fluid control for heavy-duty industrial systems.