Spirax Sarco offers a comprehensive range of check valves designed
to protect equipment that can be affected by reverse flow. An
awareness of the problems associated with reverse flow and related
pressure surges is essential, particularly when using flowmeters,
as reverse flow reduces accuracy. Reverse flow can also cause
problems in manufacturing processes affecting product quality.There are a number of reasons for using check valves, which
include:• Protection of any item of equipment that can be affected by
reverse flow, such as flowmeters and control valves
• Prevention of unwanted pressure surges associated with hydraulic
forces, for example waterhammer
• Prevention of flooding which may occur under gravity or on system
shutdown
• Relief of vacuum conditions
• Reduced risk of cross contamination in processes
Our check valves can be used across a wide range of industries
including:
• Oil and petrochemical
• Pharmaceuticals
• Shipbuilding
• Power generation
• Institutions
• Food and beverage production
• Pulp and paper • Textiles. 
