HUPLONG INDUSTRIES (M) SDN BHD is the authorized distributor of NORRES industrial hoses in Malaysia.
HUPLONG INDUSTRIES (M) SDN BHD supplies genuine NORRES PRO₂AIR® Pre-PUR 602 membrane tube diffusers for wastewater aeration systems.
NORRES PRO₂AIR® Pre-PUR 602 is a membrane tube diffuser for industrial and municipal wastewater treatment plants. NORRES lists it for fine-bubble pressure diffusion, oxygen input for nitrification in activation basins, permanent and intermittent ventilation, oxygen input and circulation in fixed-bed and bioreactors, thorough mixing of activation basins, sand trap louvre ventilation, renaturation of lakes and rivers, aquaculture and fish farming.
The diffuser wall is made from special premium polyurethane Pre-PUR® with an approximate wall thickness of 0.7 mm. The support body is polypropylene. NORRES lists stainless steel clamps in 1.4301 = AISI 304 = W2 = INOX as the standard design, while current article variants also include stamped 1.4571 = AISI 316Ti clamp options.
NORRES states that PRO₂AIR® Pre-PUR 602 offers high energy savings compared with comparable market-standard EPDM and silicone diffusers due to lower pressure loss. The official product information also states very fine and uniform bubble formation through optimized perforation, high oxygen input and oxygen transfer efficiency even with low-density systems, and a membrane without plasticizer to avoid curing.
The official operating range is 3 to 8 Nm³/(h*m aer.) for normal operation, with a minimum of 1 Nm³/(h*m aer.), a maximum of 15 Nm³/(h*m aer.) and a purging operation value of 18 Nm³/(h*m aer.). The official temperature range is -40°C to 60°C.
NORRES states that the membrane is extremely tear-resistant and abrasion-resistant, microbe-resistant and hydrolysis-resistant. The official product information also states very good resistance to wastewater and municipal sewerage in accordance with the latest DWA-M 115 instructions, as well as good resistance to oil, gasoline and chemicals. NORRES states that PRO₂AIR® Pre-PUR 602 conforms to the RoHS guideline.
Current NORRES article variants are listed with a 63 mm size, 64.5 mm inside diameter, 3/4 inch or 1 inch inner thread, 570 mm 820 mm or 1070 mm total length, and 500 mm 750 mm or 1000 mm ventilation length. Further diameters and lengths are available on request according to NORRES.
Our team can assist customers throughout Malaysia with NORRES hose selection based on hose diameter, conveyed material, operating temperature, airflow, vacuum condition, installation length and quantity requirement.
For NORRES PRO₂AIR® Pre-PUR 602 selection, we can also assist based on aeration basin application, required ventilation length, inner thread size, clamp material option, diffuser quantity, blower capacity, installation arrangement and wastewater treatment requirement.
The applicable dimensions and operating values vary by article variant and must be checked against the official technical table before ordering.
FAQ
Q: What is NORRES PRO₂AIR® Pre-PUR 602?
A: NORRES PRO₂AIR® Pre-PUR 602 is a membrane tube diffuser for wastewater aeration systems.
Q: What wastewater applications are officially listed for PRO₂AIR® Pre-PUR 602?
A: NORRES lists industrial and municipal wastewater treatment plants, fine-bubble pressure diffusion, oxygen input for nitrification in activation basins, permanent and intermittent ventilation, fixed-bed and bioreactors, activation basin mixing, sand trap louvre ventilation, lake and river renaturation, aquaculture and fish farming.
Q: What is the membrane material of PRO₂AIR® Pre-PUR 602?
A: The official NORRES design specifies a wall made from special premium polyurethane Pre-PUR® with an approximate wall thickness of 0.7 mm.
Q: What is the support body material?
A: NORRES specifies a polypropylene support body.
Q: What is the operating air flow range?
A: NORRES lists normal operation at 3 to 8 Nm³/(h*m aer.), minimum operation at 1 Nm³/(h*m aer.), maximum operation at 15 Nm³/(h*m aer.) and purging operation at 18 Nm³/(h*m aer.).
Q: What is the official temperature range?
A: The official NORRES temperature range is -40°C to 60°C.
Q: Is PRO₂AIR® Pre-PUR 602 abrasion-resistant and microbe-resistant?
A: Yes. NORRES states that the membrane is extremely tear-resistant and abrasion-resistant, microbe-resistant and hydrolysis-resistant.
Q: Is this diffuser suitable for wastewater and municipal sewerage?
A: NORRES states very good resistance to wastewater and municipal sewerage in accordance with the latest DWA-M 115 instructions.
Q: What lengths and thread options are currently listed?
A: Current NORRES article variants list total lengths of 570 mm, 820 mm and 1070 mm, with ventilation lengths of 500 mm, 750 mm and 1000 mm. The listed inner thread options are 3/4 inch and 1 inch.
Q: What clamp material options are listed by NORRES?
A: Current variants include stamped stainless steel clamps in 1.4301 = AISI 304 and 1.4571 = AISI 316Ti, depending on the article variant.
Q: Does NORRES PRO₂AIR® Pre-PUR 602 conform to the RoHS guideline?
A: Yes. The current official NORRES product information states that PRO₂AIR® Pre-PUR 602 conforms to the RoHS guideline.
Q: How should the correct PRO₂AIR® Pre-PUR 602 variant be selected?
A: Selection should be based on the required ventilation length, inner thread size, stainless steel clamp material option, aeration system layout, blower capacity, wastewater treatment application and total installation quantity. The applicable dimensions and operating values vary by article variant and must be checked against the official technical table before ordering.
Malaysia
