DIR Regulator Set – 1st Stage F50 + 2nd Stage FX3 + Pressure Gauge

Complete DIR standard configuration. Includes two F50 balanced diaphragm first stages with lamellar head radiator, pneumatically balanced FX3 second stages, metal technical pressure gauge, and thermoplastic rubber hoses.

The Scubatec F50 FX3 Regulator Set + SPG DIR Set, available on DIR-STORE, is a professional-grade breathing system that is 100% Made in Italy, designed for divers who seek maximum safety, mechanical robustness, and stable delivery even at great depths. The heart of this kit is the F50 first stage, a balanced diaphragm reducer renowned for its inherent reliability and its integrated lamellar radiator head. This engineering solution optimizes thermal exchange with the external environment, making the set an excellent choice for advanced recreational diving, for ultra-efficient independent Octopus configurations, and for frequent dives in lakes, springs, or seas subject to strong thermoclines.

Technical Features:

• Double F50 First Stage (Balanced Diaphragm and Lamellar Radiator): Built entirely in Italy with premium metals and precise manufacturing tolerances, the F50 first stages maintain a constant intermediate pressure set at approximately 10 bar, ensuring an abundant and effortless airflow at any stage of the dive. The lamellar radiator on the head increases the metal contact surface to counteract thermal drops due to gas expansion and prevent freezing. The rational layout with 4 symmetrical LP ports and 2 HP ports allows for a clean and kink-free hose arrangement.
• Double FX3 Second Stage (Pneumatic Balancing and Smooth Delivery): The FX3 second stages are pneumatically balanced to minimize the overall inspiratory effort (WOB), keeping it smooth and constant regardless of the residual pressure in the cylinders. The high-resistance technopolymer casing protects the internal mechanisms and chromed brass valves from impact and salt corrosion.
• Dual Precision Adjustment: Both FX3 second stages feature a lever for manual Venturi effect management (Dive/Pre-Dive), essential for inhibiting accidental continuous flows (free-flow) when the regulator is not in the mouth (such as on the backup positioned around the neck). They also integrate an oversized micrometric external knob to calibrate the initial breathing effort, easily operated even with thick gloves.
• O-Ring Compound Option (Air / Nitrox-O2 Ready): At the time of purchase, the set can be configured with standard NBR compound O-rings for air use, or in the elite technical version with Viton O-rings and high-quality oxygen-compatible grease, fully ready for use with enriched breathing mixtures (EAN/Nitrox).
• 52 mm Metal Technical Pressure Gauge SPG: The kit includes a professional diving pressure gauge with a chromed brass case, tempered glass, and a highly legible luminous dial, supplied complete with a swivel pin.
• Heavy-Duty Thermoplastic Rubber Hose Kit: In full compliance with the DIR standard, the set uses robust black rubber/thermoplastic rubber hoses with high thickness (standard 9/16" connection), ideal for ensuring hydrodynamic stability and a natural vertical descent of the layout along the body:
• Primary Regulator LP Hose (Long Hose): 1.93 m
• Backup Regulator LP Hose: 0.56 m / 0.61 m
• Pressure Gauge HP Hose: 0.57 m / 0.60 m

Set Contents:

• 2x Scubatec F50 DIN First Stages (Balanced diaphragm with lamellar head radiator and metal ring, 232 or 300 bar version)
• 2x Scubatec FX3 Second Stages (Black cover with adjustment knob and 9/16" fitting)
• 1x 52 mm Metal Pressure Gauge (SPG) with swivel included
• 1x Black thermoplastic rubber HP hose for pressure gauge (length selectable between 0.57 m / 0.60 m)
• 1x 1.93 m Black thermoplastic rubber LP hose for primary regulator (donor)
• 1x Short black thermoplastic rubber LP hose for backup regulator (length selectable between 0.56 m / 0.61 m)

SCUBATEC Diving Regulator KITS are RINA certified and comply with the international standard UNI EN250:2014 which regulates the production and sale of Category III Personal Protective Equipment (PPE). The 0474 mark guarantees the manufacturer's compliance with the provisions of current community regulations.