Superlok Relief Valves from Superlok South are built to deliver the same performance you’d expect from Swagelok®—with better availability, faster delivery, and pricing that makes sense. Designed to protect pressure systems in tough industrial settings, our valves are a smart alternative for fluid processors who don’t want to wait weeks or overpay for dependable protection.

Reliable Pressure Control Where It Matters

Superlok Relief Valves help prevent overpressure events by releasing excess pressure exactly when it’s needed. These valves are tuned for accurate performance in high-demand setups while offering better value and shorter lead times than Swagelok®.

Proven Across Industries

Engineered for critical systems, Superlok Relief Valves are used in the same applications Swagelok® supports, including:

• Oil and Gas
• Chemical Processing
• Water Treatment
• Pharmaceuticals
• Food and Beverage
• Power Generation

Material Options and Temp Ranges

Superlok offers a wide range of sealing materials to match your application needs:
Viton (FKM): -23°C to 191°C
NBR (Buna): -40°C to 121°C
EPDM: -57°C to 121°C
Kalrez: -26°C to 260°C
These choices allow you to match exact specs without being boxed into long lead times or limited stock.

Comprehensive Product Range:

Superlok® provides a full range of relief valve options, including:

• SRVL Low Pressure Relief Valves (300 PSI)
• SRVH High Pressure Relief Valves (6000 PSI)

These options match Swagelok’s® offerings while potentially providing better cost-effectiveness and faster delivery times.

Full Range of Valve Types

We carry both low and high pressure models to cover more ground, including:

• SRVL Relief Valves – 300 PSI
• SRVH Relief Valves – 6000 PSI

Everything is designed for compatibility and built with corrosion-resistant alloys and sanitary stainless steel fittings.

What Sets Superlok South Apart

• Fast-acting pressure protection to keep your systems safe
• Material options that work across a range of industries and conditions
• Built to last using high-quality components
• Available in multiple configurations to fit your exact system specs
• Interchangeable with Swagelok® but easier to get