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Disc type

Swing type

Seat type

Ball type

Check valves

 The anti-return / retention valves are characterized by allowing a flow to circulate through the equipment in only one direction, blocking its passage in the other direction. When the valve opens and the fluid circulates from one direction to another, the valve closes due to gravity or the action of a spring. The anti-return valves are characterized by a very high tightness, as well as being very resistant to corrosion and wear.