In designing our bobbin wound GRP line of filters we have taken into consideration globally recognized standards – AD – Merkblatt N1, which is German standard and BS4994 which is used in United Kingdom. We have chosen to adhere to them simply because adherence to these two standards provide the finished pressure vessel with the highest quality. Also these two standards encompass all the rest European standards.
Our pressure vessels are constructed from GRP as it is stated in DIN 18820. Layers are shown in the diagram on the right. Apart from those principal layers, we use additional reinforcement in all the joints and connections in the filter.
Our GRP filters are divided into three categories: DIN Series, Series 2 and Series 3.
DIN Series are designed for use in high end commercial swimming pools and they are prepared for use in multi layer filtration media setups. They are also ready to be used with hydro anthracite, and they are complient with DIN 19643/19605
Series 2 is designed for commercial swimming pools of a smaller scale. They are also used where there is a need of a highest filtration quality, but there in no need to fully adhere to DIN 19643/19605.
Series 3 is used for price sensitive applications.