Product Categories

• Model 5500: Pilot Operated Pressure Relief Vent (Pipe‐Away)
• Model 6K00: Pressure/Vacuum Relief Vent with Flame Arrestor
• Model 1078: Pilot Operated Blanketing & Relief Valve

Shared Key Features

• Set Point Accuracy: Each unit ships with certified test certificates; Model 5500 offers ±2% accuracy; Model 6K00 likewise guarantees verified seat pressure.
• Tight Shutoff: Bubble-tight seals reduce product loss and emissions under zero pressure differential.
• Modular, Top Entry Design: Pilots, diaphragms, and seats maintainable without removing the unit from the tank.
• Compliance Standards: All models conform to API 2000 and ISO 28300; 6K00 meets ATEX & ISO 16852 flame arrestor criteria.
• Material Options: Carbon steel, stainless, aluminum bodies; 316SS or Hastelloy trim; elastomers include FKM, EPDM.
• Pressure Range: From very low (inches WC) to 15 psig set points across models.

Individual Model Features

Applications

• Petrochemical & Oil & Gas: Vapor control, emergency pressure relief, flame protection.
• Storage Tanks: Both inerted (1078) and atmospheric (6K00, 5500).
• Chemical Process Vessels: Precision relief and fugitive emissions control.
• Environmental & Safety: Tight-shutoff to reduce VOC emissions and protect personnel/equipment.

Notable & Unique Features

• Pressure tolerance: Models regulate from inches of water column to 15 psi.
• Certifications: ATEX compliance for flame protection; API and ISO for venting and leak control.
• Bubble-tight sealing: Standard prevents evaporation or gas loss.
• Self-draining 5500 body: Prevents condensate in cold climates.
• Modular cartridges and pilots: Simplify maintenance across models.
• Pilot verification without flow: Saves blanketing gas—especially critical for Model 1078.

Why Choose Controlled Safety Relief Systems

• Reliable, certified protection matching industrial safety standards.
• Bubble-tight shutoff reduces emissions and operating cost.
• Wide pressure range caters to both blanketing and high-pressure systems.
• Modular, top-entry design ensures minimal downtime during service.
• Versatile material options allow use with corrosive or cryogenic media.
• YGEN Engineering & YGEN Automation provide expert sizing, installation, and support as authorized partners.

Conclusion

Cashco’s Controlled Safety Relief Systems—Models 5500, 6K00, and 1078—offer a robust, precise, and code-compliant solution for vapor control and overpressure protection. Their broad applicability, tight sealing, ease of maintenance, and accredited certification make them ideal for industries seeking safety, reliability, and operational efficiency.