DNV No 12
Technical specifications
Type of product: Dual non-return valve

Standard equipment
Used as standard equipment in dual or multiple steering position systems.

Description
Dual non-return valve is additionally installed into systems with more steering positions (if pumps are without non-return valve), and its function is to allow the oil flow, when hydraulic pump is activated, and to block the return pressure that appears in the cylinder due to the rudder blade’s resistance.

Info
In multiple steering positions systems this type of valve prevents the steering wheel, which is not being used, from unnecessary turning, and allows the automatic transfer of controls from one steering position to another.

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