FOX VRX-HD

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SKU: APSS-ITEM-00013244

TECHNICAL SPECIFICATION SHEET: FOX VRX-HD NITROGEN CHARGING VALVE

PRODUCT OVERVIEW
Manufacturer: FOX S.r.l. (Italy)
Model Series: VRX-HD
Product Type: Heavy-Duty Nitrogen Charging Valve
Application: High-pressure fluid power systems, specifically designed for pre-charging, isolation, and pressure monitoring of hydropneumatic accumulators (bladder, diaphragm, and piston types).
MATERIAL SPECIFICATIONS
Body Material: Stainless Steel AISI 316L (designated by "VRX")
Internal Components: Stainless steel / high-strength alloy
Sealing Materials: FKM (Viton) / NBR / PTFE (depending on medium compatibility)
Corrosion Resistance: High resistance to marine environments, chemical exposure, and aggressive hydraulic fluids.
MECHANICAL & OPERATIONAL SPECIFICATIONS
Maximum Working Pressure: 350 bar (5076 PSI) to 400 bar (5800 PSI) standard rating
Design Duty Class: Heavy-Duty (designated by "HD") for severe operational cycles and vibration resistance
Gas Port Connection (Top): 5/8" UNF male thread (compatible with standard universal nitrogen charging kits)
Accumulator Connection (Bottom): M28x1.5 or specific manufacturer thread configurations (model variant dependent)
Operating Temperature Range: -20°C to +80°C (standard) / up to +150°C (high-temperature seal variants)
COMPATIBILITY & MEDIA
Primary Medium: Nitrogen Gas (N2) only
Secondary Compatibility: Suitable for integration with systems utilizing mineral oils, water-glycol emulsions, and synthetic fluids.
KEY FEATURES & DESIGN BENEFITS

Integrated Non-Return Feature: Prevents accidental pressure loss during connection and disconnection of charging equipment.
Solid Hexagonal Body: Engineered for high-torque tightening and robust installation.
Protective Cap: Heavy-duty metal safety cap included to protect the gas thread from mechanical damage and contamination.
Zero-Leakage Poppet Design: Ensures long-term pre-charge pressure retention in demanding industrial, oil & gas, and maritime applications.