How is the chimney height determined?

The height depends on the building's height and is tailored to meet client needs.

What safety devices are included in the system?

The system includes lightning arresters and explosion-proof devices.

Do you offer OEM and ODM services?

Yes, both OEM and ODM services are available.

HVAC Ventilation Double Wall Stainless Steel Pre-Insulated Engineered Double Wall Grease Duct

Name: HVAC Ventilation Double Wall Stainless Steel Pre-Insulated Engineered Double Wall Grease Duct
Brand: Suzhou Rainbow Environmental Equipment Co., Ltd.
SKU: 1942283881

Jiangsu, ChinaSuzhou Rainbow Environmental Equipment Co., Ltd.

Negotiable

200 Sets

Product profile

Customization

Available

Material

Stainless Steel

Shape

Round

Model NO.

Commercial chimney

Certification

Thickness

0.8-1.5mm, Accept Customization

Height

Depends on The Height of The Building

Product Copiable

No, Key Parts with China Patent

Standard

Connection

Flange or Welding

Insulation

25*N mm

Transport Package

Water Proof Cover

Specification

CE, V2 by TUV Germany

Trademark

Rainbow

Origin

Suzhou, Jiangsu Province, China

HS Code

73269090

Key features

Premium Stainless Steel Material: Constructed with SUS304 or 316L for excellent corrosion resistance in harsh environments.

Customizable Thickness: Thickness ranges from 0.8 to 1.5mm and accepts customization to ensure structural stability.

Tailored Height Design: Height is customized based on building requirements for effective smoke and fume exhaust.

Advanced Safety Features: Equipped with lightning arresters and explosion-proof devices for personnel and equipment safety.

Comprehensive Auxiliary Facilities: Includes rain caps, regulation valves, and inspection holes for stable operation and maintenance.

ISO Quality & Environmental Certifications: First in industry to achieve ISO9001:2008 and ISO14001:2014 certifications.

Industry Standard Authority: Chief editor of National Steel Chimney Design Code (GB50051-2013) with 142 national patents.

Global Export Experience: Products exported to over 20 countries including USA, Germany, France, and Japan.

Company profile

Suzhou Rainbow Environmental Equipment Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2008-01-01 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤4.87h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummarySuzhou Rainbow Environmental Equipment Co., Ltd. is a China-based supplier established in 2009, with stated experience in chimney and pipe manufacturing. The available information describes eight production lines, a 21,019 m² manufacturing area, stated output of 1,000,000 sets of stainless and carbon steel pipes, and export markets spanning domestic sales, Europe, Australia, and North America. The supplier reports ISO9001:2015 and ISO14001:2015 certification, 142 national patents, laser-welding and TED technology, and a quality-control team of 21–30 staff. Evidence also indicates products sold in multiple overseas markets. However, the records contain inconsistent company names, business classifications, facility sizes, and production-capacity figures. After-sales processes, financial credibility, and customization capability are not sufficiently documented.

CertificationsThe supplier explicitly reports ISO9001:2015 and ISO14001:2015 certificates, plus unspecified additional certifications. These stated management-system certifications support quality and environmental-management capability.

R&D capabilityThe supplier claims 30 years of research-and-development, production, and sales practice, 142 national patents, five years of R&D-engineer experience, and use of TED and laser-welding technology. These are explicit indicators of engineering and innovation activity, although the records do not independently validate the claims.

Production capacityProduction capability is supported by eight production lines, a stated 21,019 m² manufacturing area, reported output of 1,000,000 sets of stainless and carbon steel pipes, and claimed monthly capacities of 58,000 pieces or 30,000 sets. Because the facility-size and capacity figures conflict across slices, capability is evidenced but not consistently quantified.

Client casesThe supplier reports sales or export coverage in domestic markets, Europe, Australia, North America, the USA, Germany, Japan, Korea, Italy, the Netherlands, Denmark, and South Africa. These destinations indicate international market experience, but no named customers, project references, order examples, or independently verifiable case studies are provided.