90.41.7090.41.00 90.41.80

Description: 4″ foot valve with pneumatic control, not pressure balanced design The foot valve is made so that the shutter position can be checked by the position of a control stem. The shutter can be manually opened by means of a special key, in any casa of failure of the air supply (80.40.60). COMPLIANT TO EN 13308 STANDARD


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