Explore our industrial heat exchange units, balance valves, and evaporators built with advanced technology.
Flotte Energy Saving Company, established in 2013 with a registered capital of 101 million yuan, originated from Flotte Thermal Engineering founded in 1995. With three decades of technical expertise, the company specializes in water equipment, HVAC systems, and water treatment industries. It consistently leads industry peers in adopting cutting-edge technologies, developing innovative products, and delivering comprehensive production and sales services.
The company has been continuously advancing in production technology innovation, holding multiple patent certifications including "High-Efficiency Plate Heat Exchanger", "Intelligent Plate Heat Exchanger System", and "Plate Heat Exchanger Scale Removal Device". Our products have obtained mandatory national product certification and safety registration from the National Standardization Committee, alongside security clearance certifications for pressure vessels. We operate under stringent quality models including ISO9001 Quality Management System, ISO14001 Environmental Management, and ISO45001 Occupational Health and Safety certifications.
Operational scale designed to meet global supply chain requirements for replacements, assemblies, and complete system builds.
An industrial whitepaper on heat transfer fluid dynamics, material standards, and OEM integration.
The Worcester Greenstar 30si boiler platform relies on high-efficiency secondary plate heat exchangers to facilitate instant domestic hot water (DHW) production. Within the boiler's hydraulic cycle, the secondary heat exchanger transfers thermal energy from the primary boiler loop (heated by the main burner gas assembly) directly to the domestic cold water inlet stream. To maintain energy efficiency standards required by the European ErP directive and international carbon reduction mandates, these heat exchangers must achieve high heat transfer coefficients (U-values) under minimal Logarithmic Mean Temperature Differences (LMTD).
To optimize performance, Flotte utilizes a chevron corrugated plate geometry. The alternating pattern of ridges and grooves induces localized turbulent flow even at low Reynolds numbers. This turbulence serves two functions: it breaks down the thermal boundary layer along the stainless steel plates to maximize heat transfer rates and creates a self-cleaning mechanical sweep that reduces limescale and particulate fouling.
Information Gain Indicator: Standard OEM heat exchangers often use baseline SS304 plate materials. Flotte’s replacement parts for the Worcester Greenstar 30si utilize premium SS316L (EN 1.4404) with a thickness tolerance deviation of less than ±0.015mm, improving mechanical fatigue resistance under continuous thermal expansion and contraction cycles.
| Technical Parameter | OEM Reference Specifications | Flotte Enhanced Engineering Standards |
|---|---|---|
| Base Plate Metallurgy | AISI 304 / Standard Stainless Steel | AISI 316L (Ultra-Low Carbon Stainless Steel) |
| Brazing Material | Pure Copper (99.9% Cu) | Oxygen-Free Pure Copper / Vacuum Nickel brazing options |
| Design Operating Pressure | 1.0 MPa (10 Bar) | 1.6 MPa to 3.0 MPa (16 - 30 Bar) Testing Standard |
| Brazing Environment | Standard Vacuum Furnace | High-Vacuum Automated Control Furnace (< 10^-3 Pa) |
| Anti-scaling Treatment | None | Patented Low-surface energy passivation finish |
As the heating market transitions to high-efficiency condensing gas boilers and hybrid heat pump configurations, maintaining existing boiler fleets remains a key focus for global HVAC systems. In regions like the United Kingdom and Northern Europe, millions of domestic properties rely on boilers like the Worcester Greenstar 30si. A common point of wear is the domestic hot water plate heat exchanger, which can degrade due to oxygenation, calcium carbonate deposits (limescale), and system magnetite accumulation.
This creates a stable international market for high-quality aftermarket components. Our manufacturing facility in China acts as a direct exporter, helping global boiler component distributors, municipal maintenance organizations, and heating service providers procure reliable replacement parts without the high margins of traditional distribution channels.
Beyond domestic replacement components, Flotte integrates these thermal design principles into large-scale commercial and district heating applications. For municipal heating systems, pressure-reducing stations, and HVAC loops, plate heat exchangers act as isolation barriers. They protect sensitive equipment from pressure spikes and sediment contamination, helping to extend the operational lifetime of entire heating networks.
In centralized district heating networks, our high-efficiency modular assemblies are paired with our intelligent balance valves and secondary network regulation systems. This integration helps balance hydraulic flow across networks, addressing the common issue of uneven heat distribution between near-end and far-end heating zones.
Combining technological innovation, strict quality control, and global logistics support.
Our plate heat exchangers utilize patented corrugated plate profiles, designed to increase thermal transfer rates by up to 2-3 times compared to traditional smooth-walled designs.
Products are designed to meet international manufacturing and environmental regulations, including CE, PED (Pressure Equipment Directive), and standard European domestic water requirements.
We provide full-process support from design verification and custom manufacturing to final testing and logistics planning, backed by a dedicated engineering and sales team.
A look at our production flow, from material preparation to quality control and pressure testing.
Our quality control processes conform to international standards, including ISO approvals and pressure vessel certifications.
A look at our plant floor and machinery, showcasing our production capacity.
For replacement plate heat exchangers aimed at the European boiler market, exact dimensional alignment is required. The connection ports, pitch spacing, and mounting stud alignments must match the boiler's internal manifold. Any variation in spacing can cause mechanical stress on the plastic hydraulic blocks or composite manifold connections, leading to potential structural failure.
Flotte’s engineers use coordinate-measuring machines (CMM) to map out dimensions, ensuring compatibility with the Worcester Greenstar 30si boiler family. We conduct strict hydraulic pressure cycles up to 30 Bar to evaluate long-term reliability against pressure fluctuations in domestic mains water lines.
Our research and development program focuses on three main objectives to guide our product development:
Addressing common queries from plumbing engineers, HVAC distributors, and procurement managers.
Complete your heating systems with our range of balance valves, evaporators, and integrated heat exchange units.
Flotte Energy
