Center Enamel: Trusted External Floating Roof Manufacturer Supporting Brazil's Oil & Gas Storage Infrastructure

Center Enamel: Trusted External Floating Roof Manufacturer Supporting Brazil's Oil & Gas Storage Infrastructure

In the rapidly evolving global energy sector, storage infrastructure plays a pivotal role in maintaining operational efficiency, environmental compliance, and strategic energy reserves. As oil and gas producers seek to optimize storage performance while minimizing evaporation losses and environmental impact, one solution stands out: the external floating roof.

As a leading external floating roof manufacturer, Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) is proud to introduce its advanced external floating roof systems to Brazil’s dynamic and growing oil and gas industry. With decades of expertise in industrial storage solutions, Center Enamel offers world-class design, manufacturing, and installation support for external floating roof tanks (EFRTs), tailored for the unique operational and climatic challenges of South America.

As a leading storage tanks manufacturer worldwide. Center Enamel can provide Glass-Fused-to-Steel (GFS) tanks, fusion bonded epoxy tanks, stainless steel tanks, galvanized steel tanks and aluminum geodesic dome roofs, Wastewater and Biogas Project Equipments for global customers.

WasteWater Treatment Project Equipment Supply

Understanding External Floating Roofs and Their Role in Oil & Gas Storage

An external floating roof (EFR) is a type of floating cover designed to sit directly on the surface of a liquid—typically crude oil or volatile petroleum products—inside an open-top aboveground storage tank. Unlike fixed-roof tanks, the external floating roof rises and falls with the level of the stored liquid, thereby reducing vapor space and minimizing evaporative losses.

Key Advantages of External Floating Roofs:

Reduces product loss through minimized vaporization

Mitigates volatile organic compound (VOC) emissions

Improves fire safety by minimizing flammable air-vapor mixtures

Complies with environmental regulations such as the US EPA, EU BAT, and Brazil’s CONAMA standards

Extends tank life by limiting internal corrosion

Brazil, as a key player in the global oil and gas landscape—with substantial reserves in the Pre-Salt Basin and ongoing investments in refining and petrochemical capacity—stands to benefit immensely from high-performance external floating roofs in its expanding network of aboveground storage tanks.

Center Enamel: A Global Leader in Floating Roof Technology

Who We Are

Center Enamel has grown into one of China’s most advanced and reliable manufacturers of industrial storage equipment. We are globally recognized for our Glass-Fused-to-Steel tanks, pressure vessels, biogas systems, and floating roof systems. Our facilities are ISO, ASME, and CE certified, and we have exported solutions to over 80 countries.

With more than 30 years of experience, we combine engineering precision, material science expertise, and customized design to deliver external floating roofs that meet the highest international standards.

What We Provide for Brazil’s Oil & Gas Industry

Center Enamel is uniquely positioned to support Brazil’s oil and gas industry through:

Design, fabrication, and supply of external floating roofs

Retrofitting fixed-roof tanks with EFRs

Full turnkey tank design including EFRTs

Regulatory compliance with Brazil’s ANP and IBAMA requirements

Engineering Excellence: Our External Floating Roof Systems

Types of External Floating Roofs We Offer:

Pontoon-Type External Floating Roofs

Lightweight and economical

Ideal for large-diameter tanks

Excellent buoyancy with minimal maintenance

Double-Deck External Floating Roofs

Enhanced vapor control and durability

High structural strength for heavy-duty usage

Superior performance in fluctuating temperatures

Hybrid Floating Roof Systems

Combining aluminum decks with steel pontoons

Lightweight and corrosion-resistant

Optimal for aggressive chemical storage

Each type is engineered to optimize safety, durability, and emissions control, based on specific customer needs.

Materials and Manufacturing Standards

Our external floating roofs are fabricated using high-grade carbon steel, aluminum alloys, or stainless steel, depending on the stored product and tank conditions. Materials are selected to:

Resist corrosion in tropical and coastal environments (such as in Rio de Janeiro, Bahia, or São Paulo)

Withstand seismic and wind loads

Maintain structural stability under thermal expansion

All components are produced in our 150,000-square-meter production facility, equipped with CNC cutting machines, robotic welding, and automated coating lines. Our products conform to:

API 650 / API 653 standards

ASME Section VIII

ISO 9001/14001/45001

PED/CE directives

Key Features of Center Enamel’s External Floating Roofs

Precision-Fabricated Seals

Primary and secondary rim seals to reduce vapor emissions

Available in mechanical shoe, foam, or liquid-mounted designs

Roof Drainage Systems

Integrated drain piping with flexible joints

Prevents water accumulation and corrosion

Rolling Ladders and Deck Fittings

Safe, adjustable walkways and access

Compliant with international HSE standards

Robust Buoyancy Calculations

Finite element modeling (FEM) used in design

Guaranteed flotation under all operational conditions

Floating Roof Accessories

Fire protection foam chambers

Lightning protection systems

Tank gauging platforms

Every roof is pre-assembled, tested, and quality-checked before delivery to ensure seamless onsite installation.

Supporting Brazil’s Oil & Gas Future

Brazil is a major oil producer, with Petrobras, Braskem, and other key players expanding their operations across upstream, midstream, and downstream sectors. With Brazil’s strategic push for refinery upgrades, tank farm expansions, and stricter environmental regulations, the need for high-performance external floating roofs is growing rapidly.

Why Center Enamel Is the Right Partner for Brazil:

Localized Engineering Support: We work with EPC firms and engineering consultants in Brazil to adapt our solutions to ANP regulations and site-specific conditions.

On-Time Delivery: Our streamlined manufacturing and logistics ensure timely delivery to ports like Santos, Recife, or Manaus.

Cost-Efficiency: Competitive pricing without compromising quality or compliance.

Sustainability Focus: Our EFRs support Brazil’s environmental targets by significantly reducing fugitive emissions.

We welcome partnerships with Brazilian engineering firms, tank contractors, and energy companies for both public and private projects.

Our end-to-end service ensures that each project is delivered on-spec, on-time, and on-budget.

Commitment to Quality, Safety, and Environment

As a responsible external floating roof manufacturer, we integrate quality, safety, and sustainability in every phase of the project. Our external floating roofs help customers:

Meet environmental requirements

Reduce greenhouse gas (GHG) emissions and VOCs

Enhance fire protection and operational safety

Achieve long-term asset reliability

We are committed to helping Brazil build a more resilient, sustainable, and compliant oil and gas storage infrastructure.

Let’s Build the Future of Oil & Gas Storage in Brazil — Together

As Brazil strengthens its role as a global energy leader, its oil and gas sector demands advanced, environmentally responsible storage technologies. At Center Enamel, we are proud to be part of this journey by offering high-quality external floating roofs that deliver safety, savings, and sustainability.

Whether you are an EPC contractor, refinery operator, storage terminal manager, or government agency, Center Enamel is your trusted partner for innovative, compliant, and cost-effective external floating roof systems.

Partner with Center Enamel — China’s leading external floating roof manufacturer — and let’s shape the next era of oil and gas storage together.

Shijiazhuang Zhengzhong Technology Co.,Ltd is a professional manufacturer dedicated to the design and fabrication of bolted storage tanks since 1989. Our products range includes Glass-Fused-to-Steel (GFS) tanks, fusion bonded epoxy tanks, stainless steel tanks, galvanized steel tanks and aluminum geodesic dome roofs. With professional enameling R&D team and more than 20 enameling patents, Shijiazhuang Zhengzhong Technology Co.,Ltd has become the leader in bolted tanks industry of Asia. Our products are certified to ISO 9001, CE, NSF/ANSI 61, WRAS, ISO 28765, LFGB, BSCI, ISO 45001 and other international standards.

Shijiazhuang Zhengzhong Technology Co., Ltd is not only the first manufacturer in China which produces Glass-Fused-to-Steel tanks, but also the most experienced professional bolted tanks manufacturer in Asia. The engineering & design, product testing and quality system of Center Enamel Glass-Fused-to-Steel tanks is in strict accordance with AWWA D103-09, OSHA, ISO 28765, NSF/ANSI 61, NFPA and other international standards. Center Enamel Glass-Fused-to-Steel tanks are wildly used in drinking / potable water, industrial effluents, municipal sewage, bio-energy, landfill leachate, agriculture and other applications. Until 2023, Center Enamel bolted tanks have been exported to more than 100 countries including USA, Australia, Canada, Malaysia, Indonesia, Russia, UAE, Panama, Brazil and South Africa etc., the superior tank quality and prompt service gains us worldwide recognition.

As an outstanding containment and cover system provider with more than 30 years of experience, Shijiazhuang Zhengzhong Technology Co., Ltd sincerely expects to establish long-term cooperation with the local partners throughout the world and make continuous contribution to the development of the industry.