Manufacturer: KOKEN LTD.
Model: Vitas III-A

OVERVIEW OF VITAS COMPRESSED AIR BREATHING APPARATUS

• This is a Self-Contained Breathing Apparatus (SCBA), where the user carries a high-pressure compressed air cylinder (hereinafter referred to as the cylinder). The pressure is reduced in 2 stages to ambient pressure to provide clean air to the wearer. The device allows for safe operation without inhaling air in a hazardous working environment.
• Because the air is supplied from the cylinder carried by the user, the range of movement is not restricted like airline masks, allowing use over a wide area. (However, the usage time will be limited by the amount of air in the cylinder).
• Complies with the JIS T 8155 standard.

HARNESS SECTION (CARRIER)

Excellent wearability thanks to an ergonomic design.

Burden on shoulders and lower back significantly reduced through load distribution (Series III)
The harness backplate is made of high-strength polyethylene plastic, features a 3D curve, is lightweight, and provides an excellent wearing feel. Wide lumbar pads and wide shoulder pads support the cylinder, distributing the weight acting on the wearer’s back, shoulders, chest, and lower back, thereby significantly reducing the burden during work and improving the fit.

Alarm Whistle Focus on safety and audibility

Assuming use in noisy sites, the alarm whistle is positioned close to the ear.

Pressure Gauge Can be checked even in the dark

The pressure gauge uses luminous paint, allowing users to check the scale graduations even in the dark.

Saver (Auxiliary Mask) [Optional]

Rescue Saver can be installed
This is a Saver (auxiliary mask) that can supply air from the cylinder to the victim during a rescue.
(A Saver coupling is required for the auxiliary mask. Also, it cannot be used for the Vitas anti-static/grounded type).

Pressure Reducer 29.4MPa Specification, Lightweight and Compact (Series III)

Vitas III has standardized the pressure reducer specifications at 29.4MPa. Functionality is enhanced thanks to a compact, lightweight design that eliminates redundant parts. The medium-pressure hose is a one-piece type that improves work efficiency. A Saver coupling can be connected. (Saver coupling specification is built-to-order).

One-Touch Cylinder Band Supports quick cylinder replacement

The one-touch buckle allows for quick cylinder replacement (comes with a safety lock mechanism). Most types of cylinders for breathing apparatuses can be installed by adjusting the mounting bracket.

Demand Valve

The Vitas demand valve has a large maximum flow rate, allowing sufficient respiration even during heavy work. Because the inhalation resistance remains almost unchanged even when the supplied air pressure changes, users can breathe smoothly.

There are 2 types of demand valves

Demand pressure type <Automatic> (Automatic positive pressure) – III-A

Demand pressure type (Manual switching) – III-P

Facepiece High Scope V Type Mask

Uses a highly airtight HAWC lip

HAWC lip face contact part

Equipped with a speech diaphragm (voice emitter)

Uses the “HAWC lip※” with a wide, flexible lip and a special curved face contact shape, creating our company’s unique suction cup effect. Achieves high airtightness, wide field of vision, and lightweight. Comes with a speech diaphragm that allows conversation even while wearing the mask.

※Abbreviation for High Adaptable Wide Concave

■ Head Harness – Selectable from 2 types

Superior in quick donning and stability.
Mesh Harness Type

Provides a secure wearing feel. (Standard specification).
Rubber Harness Type

VITAS III SERIES

VITAS III-A (Demand pressure type <Automatic>)

Standard: Complies with JIS T 8155
Assigned Protection Factor: 10000

The <Auto> automatic positive pressure type demonstrates excellent functionality and work efficiency for emergency work or long-term operations.

• The front of the body when worn retains only the necessary parts, providing excellent workability and operability.
• The hose is routed through the shoulder pad strap, and the pressure gauge is located at the chest position, making it very easy to check the cylinder pressure.
• Complies with Class 2 fire resistance standard (JIS T 8155)※.
• Both 29.4MPa and 14.7MPa cylinders can be installed.

■ Structure

■ Main Specifications

※ According to JIS T 8155:2014, section 5.11 “Classification of flame retardancy of products”. Excluding the one-touch bracket.

Vitas <Auto> – Pursuing functionality and work efficiency

Right before entering a hazardous working environment, you can attach the demand pressure type valve with a single touch. With just one breath, the inside of the mask will switch to a safe positive pressure state.

Can be attached with one touch

Always maintain clear vision with the purge button
In the event the eyepiece fogs up, pressing the purge button to circulate air will instantly make the vision clear again.