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Abysmal Diving Safety Notice on Cylinder Valves

Issued July 20, 2002

Abysmal Diving Inc. of Lake Havasu City, Arizona, has been notified that some scuba cylinder valves manufactured and sold between January 2000 and July 9, 2002 may contain one or more materials that may not be compatible with 100% pure oxygen (when introduced at 200psi and above) or oxygen enriched air nitrox mixtures greater than 21% oxygen content.

If you currently introduce into your scuba cylinder 100% pure oxygen or oxygen enriched air gas mixtures with an oxygen content greater than 21% and you are using one of the valves listed below, you must immediately discontinue such practice due to a RISK OF SPONTANEOUS FIRE AND SERIOUS PERSONAL INJURY OR DEATH (if you use your valves for AIR only, then this Safety Notice does not apply to you):

Valves Subject to Safety Notice

• Val-131 Thermo valve 3000 PSI: K 3/4 - 14 NGS thread
• Val-132 Thermo valve 2400 PSI K 3/4 - 14 NGS thread
• Val-133 Thermo valve 3300 PSI K 3/4 - 14 NGS thread
• Val-300 Thermo valve 2400 PSI, 300bar DIN 3/4 - 14 NGS thread
• Val-301 Thermo valve 3000 PSI, 300bar DIN 3/4 - 14 NGS thread
• Val-302 Thermo valve 3300 PSI, 300bar DIN 3/4 - 14 NGS thread
• Val-303 Thermo valve 3180 PSI, 300bar DIN 3/4 - 14 NGS thread
• Val-157 Thermo 200 bar twin Isolation manifold DIN/INT 3/4 - 14 NGS thread
• Val-357 Thermo 300 bar twin Isolation manifold DIN 3/4 - 14 NGS thread
• Val-351 Thermo 200 bar DIN/INT right hand modular valve 3/4 - 14 NGS thread
• Val-355 Thermo 200 bar H connector / Right hand
• Val-352 Thermo 200 bar DIN/INT left hand modular valve 3/4 - 14 NGS thread
• Val-356 Thermo 200 bar H connector/ Left hand
• Val-358 Thermo manifold cross bar with shutoff isolation
• Val-359 Thermo manifold cross bar without shutoff

DANGER:DO NOT USE THE ABOVE LISTED VALVES WITH 100% PURE OXYGEN OR OXYGEN ENRICHED AIR NITROX MIXTURES.

Abysmal Diving Inc. of Lake Havasu City, Arizona has been notified that the above scuba cylinder valves manufactured and sold between January 2000 and July 9, 2002 may contain one or more materials that may not be compatible with 100% pure oxygen (when introduced at 250 psi and above) or oxygen enriched air nitrox mixtures greater than 21% oxygen content.

You must stop using the valve and manifold combinations listed above immediately if being used with 100% pure high pressure oxygen (200 psi or more) or oxygen enriched air mixtures greater than 21% oxygen content or if the valve or manifold is exposed to high pressure oxygen (200 psi or greater) during a partial pressure mixing process. You must immediately return the item(s) to Abysmal Diving Inc. where they will be serviced and returned to you at no charge.

If you now use or intend to use your valve and scuba tank for AIR use only, and if you have no intention of introducing 100% pure oxygen (when introduced at 200psi and above) or oxygen enriched air nitrox mixtures greater than 21% oxygen content through it, then this product safety notice does not apply to you. INSTRUCTIONS: If your valves are subject to this Product Safety Notice, please immediately write to Abysmal Diving Inc. immediately at 2099 Acoma Boulevard West, Suite C, Lake Havasu City, Arizona, 86403 USA; or Phone +1-928-854-9470; or Fax +1-928-854-9473, and request an SMA (Service Merchandise Authorization). Then pack your valves in an appropriate container and return them to Abysmal Diving Inc. When your valves arrives they will undergo a complete teardown, inspection, cleaning and will be fitted with any required oxygen compatible materials and lubricants. Your serviced valves will then be shipped back to you free of charge.

As of July 20, 2002, Abysmal Diving Inc. has received no reports of any valve failing or exhibiting any oxygen compatibility problems. However this product safety notice has been issued and a free retrofit offer made, in an attempt to ensure our customers have all the components originally intended in these valves for oxygen/nitrox service. Abysmal Diving Inc. strives to produce the finest and safest diving equipment, and protect its customers from the unreasonable risk of injury.

Again, if you currently introduce 100% pure oxygen or oxygen enriched air gas mixtures with an oxygen content greater than 21%, you must immediately discontinue use of the above listed valves until such time as they have been returned to Abysmal Diving Inc. for a complete inspection and any required retrofitting and preparation for oxygen service.

DO NOT CONTINUE TO USE THESE VALVES IN OXYGEN-RELATED SERVICE BECAUSE OF THE POSSIBILITY OF FIRE AND SERIOUS INJURY OR DEATH.

Any questions can be directed to Abysmal Diving Inc. Visit its official website at http://www.abysmal.com

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