MAINTENANCE
From consultation about a possible drop in performance
to requesting periodic check-ups every few years after installation,
please do not hesitate to contact us about your maintenance-related issues.
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We apply a wealth of accumulated technology to a broad range of areas related to clean air creation. Puretec’s forte is finding the perfect solution for each customer.
Through the technical cooperation relationship we maintain with MEZ (Germany), we are able to manufacture and sell flange systems in Japan, as well as “ductless smoke separation booth” smoke removal/deodorization units for smoking rooms and “air purifier units” for infectious disease control.
We perform domestic manufacturing and sales in Japan thanks to a technical cooperation relationship we maintain with MEZ (Germany). This flange system for rectangular ducts is described as the slide-on-flange (SF) method by the Ministry of Land, Infrastructure, Transport and Tourism (specifications common to machinery), as well as in JIS specifications (A4009-1997) and elsewhere.
It is used not only in air conditioning and smoke ventilation ducts but, more recently, in engine room exhaust/air-conditioning ducts, such as those on cargo-carrying vessels, as well.
Shorter processing time and onsite lifting time
Significant reduction of the processing time and lifting time with the reasonable method in comparison with the traditional method.
Processing of simple and consistent quality
Processing with consistent quality with extremely low leak that can be achieved by anyone.
Quick turnaround
All standardized and ready to deliver; possible to start work at any time with low stock.
Strong and light
Flanges with high-precision forming processing and press-molding corners are strong enough with a reasonable shape, and also lightweight by 20% or more compared with the traditional method. They are also adopted for ducts in marine vessels (engine room).
Painting not necessary
All members are rustproof, achieving beautiful appearance.
Can be constructed in a narrow place
Can be securely constructed in a narrow place by using wedges.
Noise prevention and safety improvement
There is almost no noise when making ducts, and shorter lifting time also helps prevent fall accidents.
Many variations and accessories
Adaptable for various environmental needs with galvanized items as well as stainless and Galvalume. Many accessory parts can also accommodate special conditions and needs, offering a total system.
We perform domestic manufacturing and sales in Japan thanks to a technical cooperation relationship we maintain with ETU (Germany). This flange system for round ducts is the global standard, which was introduced in European duct specifications as well as in JIS specifications (A4009-1997). Because reduced labor is required for on-site installation, the total cost of duct construction is also reduced.
Excellent leak performance
Standardized flange members manufactured with high-precision forming technology is of consistent quality. The flare sealing part of the round flange adheres inside of the round duct, demonstrating the effect to decrease the amount of air leak.
Strong and light
A galvanized sheet is formed into a reasonable shape, with strength at the same level as an angle flange. Weight is also lighter.
Can be installed in a limited narrow place
Work space is reduced with one-bolt tightening. Example (at an anonymous location): 30% reduction was accomplished.
Duct making / significant reduction of onsite lifting time
Installation only involves notch processing of a round duct and insertion of a round flange. Onsite lifting work is completed only by tightening one ring bolt. It is possible to overwhelmingly shorten the onsite work time. Example (⌀900 per location)
<On-site work time examples>
Angle flange method: 526 sec.
Nipple (screw fastening) method: 430 sec.
METU round flange method: 60 sec.
Measurements for a hotel smoking area; smoking room dimensions: W 2.5m × D 5.0m × H 2.5m
(1) Testing method based on JISL1922:2016 textile product antiviral testing method
(2) Tested virus 1. Influenza A virus: A/HongKong
[JIS antiviral results]
3.0Mv ≧ 2.0 : effective
Mv ≧ 3.0: Significantly effective
Test result Mv = 3.1 → Significantly effective
From consultation about a possible drop in performance
to requesting periodic check-ups every few years after installation,
please do not hesitate to contact us about your maintenance-related issues.