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Description
Superlok Inline Relief Valve – 1/2" O.D. Tube 300 PSI, 10–250 PSI | USA Lab
The Superlok SS-RL4S8 Inline Relief Valve protects fluid and gas systems from over-pressurization with precision, reliability, and compact form factor. Built from corrosion-resistant 316 stainless steel, it is ideal for demanding industrial and laboratory environments.
Featuring a 1/2" O.D. tube connection and angle-pattern flow path, this valve enables smooth relief performance and easy integration into tight layouts. It offers a 10–250 psi adjustable set range with 300 psi maximum working pressure for versatile low-pressure protection.
Trusted across chemical processing, gas distribution, lab systems, pharmaceutical manufacturing, and research facilities, Superlok’s quality assurance and leak testing deliver dependable, long-term service.
Confirm set pressure, media compatibility, and component ratings before operation.
316 Stainless Steel 300 PSI Max 10–250 PSI Adjustable Angle Pattern, 1/2" Tube
Durable Build: 316SS construction for excellent corrosion resistance and long service life.
Adjustable Safety: Field-adjustable set range from 10–250 psi to match system requirements.
Compact Layout: Angle-pattern design with 1/2" tube ends fits tight spaces and simplifies routing.
Why buy from USA Lab
Expert Support
Engineers & technicians on staff.
Engineers & technicians on staff.
Quality First
Tested and trusted products.
Tested and trusted products.
Fast Fulfillment
Nationwide 1-2 day shipping.
Nationwide 1-2 day shipping.
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US-based service & spares.
US-based service & spares.
Resources & Downloads
Why this Superlok SS-RL4S8 inline relief valve?
- Precision protection — Adjustable 10–250 psi set point with dependable reseat performance.
- Robust 316SS build — Resists corrosion for long-term reliability in harsh media and environments.
- Compact angle pattern — Streamlined footprint simplifies integration in tight systems.
- 1/2" tube ends — Straightforward connection to standard instrumentation tubing.
- Factory leak-tested — Superlok quality assurance supports consistent, leak-tight performance.
Talk to an expert
Get selection help, set-pressure guidance, and integration tips for your line.
Technical Specifications
| Model | Superlok Inline Relief Valve – SS-RL4S8 |
|---|---|
| Part Number | SS-RL4S8 |
| Connection Type | 1/2" O.D. Tube |
| Pattern / Design | Angle-pattern inline relief valve |
| Body / Wetted Material | 316 Stainless Steel |
| Max Working Pressure | 300 psi |
| Adjustable Set Range | 10–250 psi (field adjustable) |
| Leak Test | 100% leak-tested by manufacturer |
| Flow Function | Opens to relieve when upstream exceeds set pressure; reseats upon recovery |
| Temperature Considerations | Operating limits depend on media and seal selection |
| Applications | Gas systems, process lines, labs, safety relief, fluid handling, pressure protection |
| Typical Uses | Chemical processing, gas distribution, pharmaceutical, research facilities |
| Installation Notes | Set pressure prior to service; verify tubing, ferrules, and supports |
| Maintenance | Periodically verify set point; inspect for contamination and wear |
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Tailored tanks, skids, and integration help.
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FAQ
What is the Superlok Inline Relief Valve – SS-RL4S8?
The Superlok Inline Relief Valve – 1/2" O.D. Tube, Angle Pattern, Low Pressure, 300 PSI, 10–250 PSI Adjustable Range, 316SS (Model SS-RL4S8) is a compact, angle-pattern safety valve that opens to relieve over-pressure and reseats when normal pressure is restored.
Is the set pressure adjustable on the SS-RL4S8?
Yes. The Superlok Inline Relief Valve – SS-RL4S8 provides a 10–250 psi adjustable range to match your application’s protection needs.
What is the maximum working pressure?
The Superlok Inline Relief Valve – SS-RL4S8 is rated to a maximum working pressure of 300 psi.
What connection type does this valve use?
The Superlok Inline Relief Valve – SS-RL4S8 features 1/2" O.D. tube ends for straightforward integration with standard instrumentation tubing.
Important Shipping Notice!
DISCLAIMER:
All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.
Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.
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