Astral Circular Main Drain with Flat Grille Ø 200 mm - Suitable for Concrete Pools
Manufactured in white ABS, the drain has UV protection and is used to take in water from the deepest part of the pool for 100% recirculation. It is also used to drain the pool. The latest models include a grille that complies with current regulations, in which the distance between the holes is less than 8 mm to prevent entrapment of bathers' fingers. Likewise, the "antivortex" models use lateral suction to prevent whirlpool.
The flat-grille drain, is the most appropriate model for shallow pools
- According to UNE 13451-1 standard, in public pools:
- Water passing speed 0.5 m/seg
- Maximum suction velocity 1.5 m/seg
- Minimum distance between drains: >2 m
Recommended use of WARNER security system to detect any irregularities and effect automatic shutdown of pumps Made in ABS. Side connection 2" and bottom connection 11/2" with knockout. Maximum flow: 13 m3/h
Top Tips:
- As a safety measure, two drains should be installed in each pool at a minimum distance of 2m
- According to EN13451 the recommendation maximum velcoity through the grille is 0.5m/s
- If flat grille models are installed, the necessart measures must be taken to prevent whirlpools.
- Install the warner safety system to prevent potential bather injuries by stopping pump suction with any pressure variation.
- It is recommended by the industry that the drain be connected to a hydrostatic valve, and a drainage tube be installed to relieve the pressure that potential groundwater could exert on the pool structure.
