BESGO DN40 Spindle Valve (Aqua Solar AG)

The BESGO DN40 piston valve from Aqua Solar AG is a professional solution for automatic control of water or air flow in swimming pool filtration systems. The hydraulic drive ensures smooth and silent operation without electricity, and the "normally closed" design guarantees that the pool will not be accidentally drained even if there is a loss of pressure in the system.

The body is made of high-quality PVC and stainless steel, and the seals are made of ozone-resistant Viton, which ensures durability even when working with ozonated or chlorinated water. 90° swivel connections allow the valve to be connected to any filter without additional adapters.

Specifications:

Model — BESGO DN40
Manufacturer — Aqua Solar AG
Actuator — hydraulic
Working medium — water or air
Housing material — PVC + stainless steel
Seals — ozone-resistant Viton
Minimum connection pressure — 3 bar
Closing time — 10 s at 3 bar (water) / 5 s at 3 bar (air)
Default position — normally closed
Certification — DVGW (drinking water)

Key Advantages:

Safety without electricity — if the pressure drops, the valve automatically closes, preventing accidental draining of the pool.
Ozone-resistant seals — compatible with modern water ozonation systems.
Low hydraulic resistance — minimal impact on pump system performance.
Universal connection — connections rotate 90°, suitable for any filter of the required size.
Silent operation — does not create noise during opening and closing.
Certified for drinking water — the pipe separator has been tested by DVGW.
Important! This product is only available by order!