Air Control System

The Kirby Morgan® Air Control System 5 (KMACS-5) is a lightweight, portable air control box designed for surface-supplied air diving operations. It manages air supply, diver communications, and depth monitoring for two divers simultaneously, offering both two-wire and four-wire comms. Built for rugged performance and reliability.

Description

The KMACS-5 from Kirby Morgan® is a robust, compact, and transportable control box built for demanding surface-supplied air diving operations. Supporting two divers, it provides full control over air supply, dual diver communications, and precise depth monitoring, all housed in a high-impact, weather-resistant case.

This all-in-one control system features dual high-pressure yokes with DIN adapters, enabling connection to either U.S. standard or DIN valve cylinders, and also includes a low-pressure compressor input, offering unmatched flexibility for your air supply needs.

A complete pneumo system with dual-reading gauges (US & Metric) ensures accurate depth tracking up to 250 FSW (78 MSW), while individual shut-off valves and selector switches make cylinder changes seamless—even mid-dive. The KMACS-5 is available with or without its clear, reliable communication system.

Key Features:

  • Dual Diver Control
    Supports two divers simultaneously with isolated shutoff valves for independent control.

  • Clear Communication Options
    Two-wire push-to-talk or four-wire round robin communication. Also available without communications.

  • Adjustable Air Regulation
    Regulator allows output pressure adjustments between 115–225 PSI, displayed on the Umbilical Pressure Gauge (0–300 PSI / 0–20 Bar).

  • Dual HP Cylinder Supply
    Equipped with two HP yokes (max 3500 PSI / 240 Bar) and DIN fittings. Integrated bleeder valves allow non-stop cylinder switching.

  • LP Compressor Compatible
    Dedicated fitting allows use of a low-pressure compressor as the primary air source (max 225 PSI).

  • Pneumo/Depth Monitoring System
    Accurate to ±¼% of full scale. Maximum recommended diver depth: 130 FSW (40 MSW).

  • Rugged Construction
    Lightweight, double-walled polyethylene case with stainless steel latches and O-ring seal for durability and moisture resistance.

  • Selector Valve & Shut-Off Control
    Choose air supply source or shut off diver lines individually without interrupting operations.

Specifications:

  • Part Number: 400-046 – KMACS-5 with Communications

  • Max Depth (Recommended): 130 FSW (40 MSW)

  • Depth Gauge Range: 0–250 FSW / 0–78 MSW

  • HP Input Max Pressure: 3500 PSI (240 Bar)

  • LP Input Max Pressure: 225 PSI

  • Output (Umbilical) Pressure Range: 115–225 PSI

  • Umbilical Gauge Range: 0–300 PSI / 0–20 Bar

  • Dual Reading Gauges: Imperial & Metric

  • Housing: Double-walled high-impact polyethylene

  • Communication: Two-wire / Four-wire (Optional)

Included Components:

  •  Dual HP Yokes w/ DIN Adapters & Bleeders

  •  Depth Monitoring System (Dual Gauges & Pneumo Knobs)

  •  LP Air Supply Inlet

  •  Umbilical Pressure Gauge

  •  Regulator Adjustment & Shutoff Valves

  •  Stainless Steel Diver Air Outlet Fittings

  • Communication Interface (Model dependent)

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