Brand: Apollo
Unit measure: pcs

Apollo Bio Regulator A-320 NRX – Black Edition

The Apollo Bio Regulator A-320 NRX is a high-performance, environmentally sealed regulator system engineered for military, tactical and professional diving operations. Featuring a balanced diaphragm first stage with double diaphragm environmental sealing and an adjustable Bio-Air System (BAS) second stage, the A-320 NRX delivers exceptionally stable breathing performance across varying depths, tank pressures and environmental conditions.

The regulator’s environmentally sealed 1st stage isolates internal components from water, contaminants and silt intrusion — significantly reducing corrosion, freeze-up risk and performance degradation in cold or contaminated water environments. The second stage utilises Apollo’s proprietary Bio-Air System (BAS) with an internal bypass venturi design to deliver smooth, natural inhalation characteristics while maintaining efficiency under high workload.

Nitrox cleaned and compatible up to 40% oxygen as standard, the A-320 NRX is suitable for enriched air diving without additional preparation. Built with corrosion-resistant materials and precision engineering, this regulator system is designed to withstand demanding operational cycles typical of defence and commercial deployments.

Features

  • Balanced Diaphragm First Stage
    Provides consistent intermediate pressure regardless of depth or tank pressure.
  • Double Diaphragm Environmental Seal
    Isolates internal mechanism from water and contaminants, improving cold-water reliability and corrosion resistance.
  • Bio-Air System (BAS) Second Stage
    Internal bypass venturi design delivers smooth, stable breathing performance.
  • Adjustable Airflow Control
    Diver-adjustable inhalation resistance for mission-specific tuning.
  • Nitrox Ready (Up to 40%)
    Oxygen-cleaned and fitted with Viton O-rings.
  • High-Performance Stainless Steel Bucket Filter
    Large surface area for improved airflow stability and extended service intervals.
  • Corrosion-Resistant Construction
    Satin chrome-plated forged brass first stage with protective internal coatings.
  • Swivel LP Hose with Ball Joint
    Enhances comfort and reduces jaw fatigue during extended dives.
  • High-Durability HP Seat (Polyurethane)
    Engineered for long lifecycle performance under high pressure.

 

Care and Storage Instructions

  • After use, wash in fresh water and allow to dry in a well ventilated area out of direct sunlight
  • Store in a well ventilated dry area away from direct sunlight

First Stage

Specification Detail
Type Balanced Diaphragm
Environmental Seal Double Diaphragm System
Body Material Satin Chrome-Plated Forged Brass
HP Ports 2 × 7/16” UNF
LP Ports 5 × 3/8” UNF
Max Working Pressure Up to 300 bar (DIN configuration)
Filter Stainless Steel Mesh Bucket Filter
O-Rings Viton (Nitrox Compatible)
Sealing System Environmentally Sealed

 

Bio_Regulator_a-320_NRX_-_Black_Datasheet_2026.pdf
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Bio Regulator a-320 NRX – Black

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