Astral Circular Main Drain - Flat Grille Ø 200 mm - Suitable for Prefabricated Pools
Astral code 27838
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.
