PEP-Series End Plug PRDs and Industrial Plug
Essential Safety and Operational Integrity for Gas Storage
Essential Safety and Operational Integrity for Gas Storage
The PEP-series represents a specialized line of compact, high-flow end plugs equipped with integrated Thermal Pressure Relief Devices (PRDs). Engineered by H2 Manufacturing for gaseous Hydrogen (GH2) and high-pressure industrial gases, these components provide a critical layer of defense for multi-tank storage and transport systems.
Designed for sustained performance in the field, the PEP-series utilizes a precision-engineered, fluid-filled glass thermobulb as its trigger element. This mechanical system is built to provide fail-safe venting in the event of thermal exposure, ensuring that the structural integrity of the gas system is maintained through controlled discharge. Whether your application involves CNG, Nitrogen, Helium, or Air, the PEP-series delivers the unyielding reliability required for 350 bar and 520 bar operations.
PEP-Series Features
The PEP-series is manufactured to meet the highest industrial safety standards, offering a 20-year service life and precision thermal activation.
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Uses a high-strength, fluid-filled glass bulb designed for superior axial compression. At the trigger temperature of 102°C (216°F), the fluid expands to shatter the bulb, instantly releasing the piston to its full-flow venting position.
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PEP-352: Rated for a Nominal Working Pressure (NWP) of 350 bar (5,075 psi) with a 1⅛”-12 UNF neck thread.
PEP-522: Rated for a Nominal Working Pressure (NWP) of 520 bar (7,540 psi) with a 1½”-12 UNF neck thread.
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Provides an exceptional strength-to-weight ratio (mass as low as 118g), reducing the load on cylinder manifolds while maintaining heavy-duty performance.
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Engineered to maintain a leakage rate of ≤ 10 Ncc/hr, ensuring gas inventory is preserved during standard operations.
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Fully operational in extreme environmental temperatures ranging from -40°C to +85°C.
Benefits of the PEP-Series End Plugs
H2 Manufacturing provides the PEP-series to ensure that every high-pressure cylinder in your fleet or facility is fortified against thermal over-pressurization.
Optimized Venting Capacity: With an ideal flow capacity (Cv) of up to 2.95, these end plugs ensure rapid and safe evacuation of the cylinder during a thermal event.
Fail-Safe Mechanical Reliability: The glass bulb trigger is designed with a crush safety factor of ≥2.5:1 at NWP, preventing accidental discharge while ensuring a definitive response to high-heat conditions.
Versatile Gas Compatibility: While optimized for Hydrogen (ISO 14687), these plugs are suitable for a wide range of industrial gases, providing a standardized safety solution for varied distribution networks.
Seamless Integration: Featuring standard -8 ORB (¾”-16) vent ports, the PEP-series integrates easily into existing vent lines and manifold architectures.
Dive Deeper
Get the exact specifications for your safety infrastructure. Download our comprehensive PEP-Series data sheet to view performance curves, detailed dimensional drawings, and optional trigger temperature configurations (110°C).
Contact Us to Learn More
Ready to enhance the safety of your high-pressure gas systems? Contact H2 Manufacturing today to discuss technical compatibility, custom PRD settings, and bulk procurement for your transport or storage project. Let our engineering team help you secure your infrastructure with the industry’s most reliable end plug solutions!