Product Overview
The Swagelok SS-4R3A5 is a precision proportional relief valve engineered for accurate overpressure protection and controlled pressure regulation in demanding industrial fluid and pneumatic systems. Manufactured by Swagelok, a globally recognized authority in high-integrity fluid system components, this valve features a 1/4 in. Swagelok tube fitting end connection and a 316 stainless steel construction for superior corrosion resistance. The SS-4R3A5 operates on a direct spring-loaded, poppet-style relief principle, where the valve opens proportionally in response to increasing inlet pressure, providing smooth and repeatable pressure relief rather than abrupt cracking. This proportional actuation characteristic makes it ideal for systems requiring precise pressure control, thermal relief, and protection against overpressure events in analytical instrumentation, process sampling, and industrial hydraulic and pneumatic circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Proportional Relief Valve (Hydraulic / Process & Pneumatic Valve) |
| Model Designation | SS-4R3A5 |
| Body Material | 316 Stainless Steel |
| End Connection | 1/4 in. Swagelok Tube Fitting |
| Operating Pressure | Standard Industrial Grade (Up to rated bar, spring-dependent set pressure) |
| Actuation Principle | Direct spring-loaded, proportional poppet lift |
| Mounting & Connection | Standard Swagelok tube fitting interface, panel or inline mount |
| Seal Material | Fluorocarbon rubber (FKM) O-ring seals |
Engineering Features & Advantages
- Proportional Pressure Relief: The valve opens gradually and proportionally as inlet pressure rises above the set point, delivering smooth, controlled relief without the chatter or sudden discharge associated with conventional pop-action relief valves.
- Precision Pressure Control: Fine-threaded adjustment mechanism allows accurate and repeatable set pressure tuning, ensuring stable system pressure regulation across varying flow demands.
- 316 Stainless Steel Construction: Provides excellent resistance to corrosion, pitting, and chemical attack, making the valve suitable for aggressive media, high-purity applications, and harsh industrial environments.
- Leak-Tight Swagelok Tube Fitting: The 1/4 in. Swagelok end connection ensures a reliable, leak-free seal without the need for thread sealants or additional torque-sensitive assembly.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a robust spring and poppet design that maintains consistent performance over extended service intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, allowing drop-in replacement without system modification.
Typical Industrial Applications
The Swagelok SS-
PRODUCT IMAGES
SWAGELOK SS-4R3A5 Proportional Relief Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- 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 SWAGELOK SS-4R3A5 3-Way Ball Valve. This US-made hydraulic component features a compact design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.