First Stage F40 - Viton

Ultra-compact balanced diaphragm regulator, with asymmetric tangle-free ports, ideal for twin-sets and diving in cold or contaminated water.

The Scubatec F40 First Stage, available on DIR-STORE, is an authentic Best Seller for advanced technical configurations, particularly for twin-set systems. Entirely designed and manufactured in Italy, this regulator combines extraordinarily small dimensions with total reliability. Its special asymmetric geometry has been designed to ensure natural and clean hose routing on both sides of the cylinder, reducing bulk behind the neck and maximizing diver freedom of movement.

Key Features and Benefits:

• Balanced Diaphragm Technology: Ensures constant intermediate pressure (calibrated between 9.5 and 10 Bar) and extraordinarily smooth and uniform air flow distribution, guaranteeing light and effortless breathing even at maximum depths.
• Asymmetric Port Layout (4 LP / 2 HP): The low-pressure (LP) and high-pressure (HP 7/16" 20 UNF) ports are arranged asymmetrically. This engineering configuration allows hoses to run parallel to the wing and cylinder profile, eliminating forced bends, mouth tension, and dangerous crossovers.
• Designed for Extreme Environments: The internal structure is isolated and specifically designed to operate safely even in cold or contaminated water. It features an integrated metal radiator on the head to improve heat exchange and, for even more severe contexts, it is designed for the optional installation of the Anti-Freeze Kit.
• Ultra-compact Design and Made in Italy: Entirely made with the highest quality metals and materials in Italy, it boasts a lightweight and manageable body that resists mechanical stress and salt corrosion in the most demanding underwater environments.

Why buy the Scubatec F40 first stage?

• The benchmark for Twin-sets: Thanks to the asymmetric port arrangement, it is one of the most appreciated first stages by technical divers for configuring a twin-set in a geometrically perfect, hydrodynamic, and clean way.
• Natively prepared for Nitrox/O2: This version comes standard with Viton O-rings and lubricated with high-quality oxygen-compatible grease. It is fully compatible with enriched breathing gas mixtures (EAN/Nitrox).
• Reliability and ease of management: Being a Scubatec product, it benefits from excellent spare part availability and ease of maintenance, making it a lasting investment.

Technical Details and Configuration Compatibility:

• Brand: Scubatec
• Model: F40 DIN
• Mechanism: Balanced diaphragm with head radiator
• Production: 100% Made in Italy
• Available Ports: 2 HP (7/16") / 4 LP (3/8") asymmetric
• Intermediate Pressure: 9.5 – 10 Bar
• Gas Compatibility: Air / Nitrox Mixtures (Viton O-rings and compatible grease)
• Twin Cylinder Configuration (Twin-set): Excellent (Best Seller Choice)
• Single Cylinder / Octopus Configuration: Excellent
• Cold / Contaminated Water Configuration: Excellent (Prepared for optional Anti-Freeze Kit)

• Manuale di uso e manutenzione
• Dichiarazione Erogatori Scubatec