IM-P405-46
EMM Issue 5
5
1.15 Safety information - Product specific
Hydraulic locking
Ball valves are prone to lock-up when used on certain heating / cooling applications
where both steam and liquid will pass through the valve. This is caused by liquid
trapped in the ball during closure being heated to create a high hydraulic pressure
inside the ball cavity. To prevent this, during manufacture, a minute hole is drilled
in the ball, so, that in the closed position, any excess pressure will be relieved. Spirax
Sarco ball valves for these applications are clearly marked to allow the valve to be
correctly installed, such that, when closed, the hole is facing the steam source.
1.16 Disposal
Unless otherwise stated in the Installation and Maintenance Instructions, this product
is recyclable and no ecological hazard is anticipated with its disposal providing due
care is taken.
1.17 Returning products
Customers and stockists are reminded that under EC Health, Safety and Environment
Law, when returning products to Spirax Sarco they must provide information on any
hazards and the precautions to be taken due to contamination residues or mechanical
damage which may present a health, safety or environmental risk. This information
must be provided in writing including Health and Safety data sheets relating to any
substances identified as hazardous or potentially hazardous.
Summary of Contents for ABV21i
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