Example of Purain self cleaning rainwater filter when there is high rainfall
Purain
Pre-Filter
Hydraulic jump filters with self-cleaning technology for maximum rainwater capture.
Self-cleaning Purain rainwater inlet pre-filters have the highest rainwater capture of clean rainwater with exclusive hydraulic jump technology patented by INTEWA.
Using the unique jump filter design, Purain filters catch 100% of rainfall up to a certain flow rate. At higher flow rates, the filter is vigorously cleaned using what is called a hydraulic jump action. This leads to the highest overall water capture efficiency regardless of geography.
For grey water and storm water management applications, Purain pre-filters guarantee an effective reduction of debris, and provide a cleaner water to process for end use applications.
PURAIN Product Range
PURAIN filters come in a wide range of sizes from 4” to 16” inlets.
Commercial
Applications
PURAIN 8” to 16”
Description
This PURAIN product line is developed for in-tank installations or wall mounting. The filters are sized for pipe diameters of 8”, 12” and 16” SDR 35 PVC.
Technical PDF Downloads
Product Article Numbers
- 8” PURAIN filter DN200/Article number: 210145
- 12” PURAIN filter DN300/Article number: 210155
- 16” PURAIN filter DN400/Article number: 210165
Heavy Duty Commercial
Direct Bury Applications
PURAIN HD 8” to 16”
Description
The PURAIN HD line is designed for underground installation with a vehicle rating up to 60 tons. These filters are accessible with conventional manhole lids and concrete rings, and they are sized for pipe diameters of 8”, 12” & 16” SDR 35 PVC.
Technical PDF Downloads
Product Article Numbers
- 8” PURAIN filter HD DN200/Article number: 210146
- 12“ PURAIN filter HD DN300/Article number:210156
- 16” PURAIN filter HD DN400/Article number: 210166
Large Roofs and Grey Water
Recycling Applications
PURAIN 6” and 8”
Description
This PURAIN product line is the most versatile and cost effective. The injection molded filter can be buried, mounted inside the cistern, or mounted externally. For in-tank mounting, they have a skimmer overflow.
Technical PDF Downloads
Product Article Numbers
- 6” PURAIN Filter DN150-S with skimmer :210176
- 6” PURAIN Filter DN150 without skimmer: 210178
- 6″-8″ PURAIN Filter DN 150-200 with skimmer: 210154
- 6″-8″ PURAIN Filter DN 150-200 without skimmer: 210153
Small Roofs and Greywater
Recycling Applications
PURAIN 4″
Description
Ideal for small single-family house, the PURAIN (4”) includes a non-return valve, small animal protection, and skimmer overflow. It is also available without the non-return valve.
Technical PDF Downloads
Product Article Numbers
- PURAIN filter DN100 with skimmer, without non-return valve/Article: 210136
- PURAIN filter DN100 with skimmer and non-return valve /Article: 210135
PURAIN Accessories
-
Purain Cover
for PR100 and PR100-MRecommended for filter installation outside the tank.
Article Number: 210152 -
Cover for PR 150-CUsed when ground or wall mounting the PR 150-S and PR-150-200-S. For mounting in-tank, in- ground, or on a wall.
Article Number: 210148 -
Backflushing Nozzle
for PR100 and PF300-100-CWhere filters are installed in hard to reach tanks, we recommend using the backflushing nozzle set PR-100-RSDS.
Article Number: 210138 -
Stainless Steel Pipe
Connector DN100Stainless steel construction watertight, detachable joint connection for DN100 pipes.
Article Number: 900528 -
Non-return Valve
Installation Kit for PR100-oRSRetrofitting kit for subsequent installation of non-return valve in PURAIN 100 o.RS.
Article Number: 210137