Explore our high-performance waste water and geothermal heat recovery units engineered for extreme efficiency, reliability, and modern smart operation.
Zhejiang PeakWay Pump Co., Ltd. specializes in the research, development, manufacturing, and application of advanced air source, water source, and waste heat recovery heat pump systems. As a professional, technology-led manufacturer in China's clean energy and pump industry, PeakWay is recognized for its intense focus on engineering innovation and premium thermal efficiency solutions.
The company offers a comprehensive product portfolio designed to address residential, commercial, and industrial requirements. This spans low-temperature dual-supply and triple-supply systems, high-temperature industrial drying equipment, municipal sewer thermal recovery loops, and clean domestic hot water units. With dozens of certified configurations, PeakWay's systems deliver reliable space climate control, hot water generation, and low-grade heat reclamation in challenging environments.
Guided by market demand, PeakWay operates a state-of-the-art manufacturing facility equipped with intelligent automation lines. By adopting standardized manufacturing, automated assembly protocols, and rigorous multi-stage quality control, we ensure consistent thermodynamic performance. The company strictly adheres to international quality standards as well as national regulations, striving for near-zero defect manufacturing.
PeakWay has obtained ISO 9001:2015 Quality Management System certification and ISO 45001 Occupational Health and Safety Management System certification. Outfitted with advanced testing chambers simulating extreme operating environments (including sub-zero temperatures down to -30°C), our products consistently pass authoritative audits for safety, coefficient of performance (COP), and system longevity.
Analyzing the massive potential of recovering low-grade thermal energy from municipal and industrial effluents to hit global net-zero targets.
As global economies navigate stricter carbon regulations, the decarbonization of heating has become the highest-priority engineering challenge. Space heating, domestic hot water (DHW), and industrial steam generation collectively account for more than 50% of global final energy consumption and over 40% of carbon dioxide emissions. In this context, Waste Water Heat Recovery Heat Pumps (WWHRHPs) represent one of the most economically viable and thermodynamically efficient pathways to offset fossil fuel combustion.
Wastewater, whether from municipal sewers, greywater systems in commercial buildings, or discharge streams in industrial facilities (such as textile mills, paper plants, breweries, and chemical manufacturing), carries a vast reserve of low-grade thermal energy. On average, municipal wastewater is discharged at temperatures between 10°C and 25°C throughout the year, representing a significantly warmer and more stable heat source than winter outdoor air or shallow ground loops. Industrial process wastewater can exceed 50°C, presenting an even richer thermal resource. By implementing specialized industrial-grade heat pumps, this thermal energy can be upgraded to generate hot water or steam at up to 90°C-120°C, returning valuable energy directly back into the facility.
On-site thermal loops dramatically insulate factories and district utility grids from geopolitical fossil-fuel supply shocks and volatile energy prices.
Assists large enterprise complexes in hitting Scope 1 and Scope 2 emission reduction goals under international frameworks like GHG Protocol.
Given high COP ratings (typically 4.0 to 6.5+ for water-source setups), operating cost savings can amortize capital expenses in 2 to 4 years.
Technological improvements in compressor design, heat exchanger geometry, and green refrigerants (such as R290 and R744/CO2) have vastly expanded the operational limits of water-to-water heat pumps. These systems are no longer restricted to mild, domestic applications. High-temperature steam-generating heat pumps can now recover waste heat and provide steam for sterilization, distillation, and concentration processes, replacing fossil-fueled boilers with zero-emission, electrified equipment. This alignment of economic incentives and environmental compliance has catalyzed a massive wave of retrofits across Europe, North America, and East Asia.
The evolutionary trajectory of heat pump engineering: how advanced materials and AI-driven control models are redefining thermodynamic limits.
Through our advanced dual-stage cascade systems and carbon dioxide cycles, Zhejiang PeakWay is engineering heat pumps capable of reclaiming low-grade 15°C wastewater and producing industrial-grade steam up to 120°C. This allows food processing, pharmaceutical manufacturing, and sterilization systems to operate with near-zero direct carbon emissions.
Custom-engineered thermal architectures for diverse sectors, scaling energy savings across distinct application topologies.
Municipal wastewater treatment plants (WWTPs) handle millions of liters of effluent daily. The processed water typically remains between 12°C and 20°C, representing a highly reliable geothermal-like heat source. By installing multi-megawatt water-source heat pumps alongside the plant's final filtration loop, district energy grids can extract gigawatt-hours of heat.
During the winter, PeakWay high-capacity centrifugal heat pumps extract thermal energy from this effluent, boosting water loop temperatures to 65°C to supply space heating to surrounding residential districts. In summer, the process is reversed: the effluent acts as a cooling sink, absorbing heat from district HVAC installations to provide high-efficiency air conditioning.
Industrial dyeing processes require massive volumes of water heated to 60°C - 90°C. Typically, this dye water is discharged directly into treatment plants at temperatures exceeding 45°C. This represents a significant waste of thermal energy.
A PeakWay industrial water-water heat recovery loop intercepts this high-temperature discharge. Through a shell-and-tube heat exchanger, the heat pump extracts energy from the dirty water, upgrading it to heat incoming clean process water. This closed-loop recovery system reduces boiler fuel use by up to 70%, helping industrial operators lower their carbon footprint.
Hotels, fitness facilities, and municipal swimming complexes generate steady greywater streams from showers and laundry systems, typically around 30°C. Concurrently, these buildings require continuous space heating, domestic hot water, and pool heating.
By integrating PeakWay hybrid air/water heat recovery systems, facilities can capture greywater thermal energy to preheat incoming municipal water from 10°C to 45°C. This reduces the energy required by secondary DHW heaters. By matching thermal loads, hotels can lower their hot water energy costs by up to 60%.
Food processing facilities, such as dairies and breweries, require simultaneous refrigeration and pasteurization/sterilization loops. This thermal profile makes them ideal candidates for water-source heat recovery.
PeakWay high-temperature drying and hot-water recovery equipment can capture waste heat from refrigeration condensors and washdown cycles. This energy is recycled into drying tunnels, bottle washers, and process line sanitation, replacing traditional natural gas burners.
Comparing various heat source options to help specify the right system for commercial and industrial designs.
| Heat Source Technology | Typical COP (Heating) | Stability of Source Temp | Sensitivity to Sub-zero Climates | Capital Cost (CAPEX) | Maintenance Frequency |
|---|---|---|---|---|---|
| Waste Water Heat Pump (PeakWay Water-Source) | 4.5 – 6.8 | Excellent (12°C - 35°C constant) | None (Indoors / Liquid-sourced) | Moderate to High | Low to Moderate (requires auto-cleaning) |
| Air Source Heat Pump (Standard EVI Inverter) | 2.8 – 4.2 | Poor (follows ambient air) | High (drops below -15°C) | Low to Moderate | Low |
| Geothermal Ground-Loop HP (Closed Vertical Loop) | 4.0 – 5.2 | Excellent (10°C - 15°C constant) | None (deep ground temperature) | Very High (drilling required) | Low |
| Traditional Natural Gas Boiler | 0.85 – 0.95 (Efficiency) | Not Applicable | Moderate (flue gas condensation concerns) | Low | Moderate to High (combustion safety) |
Get answers to common engineering, procurement, and design questions regarding Zhejiang PeakWay systems.
Explore the remainder of our advanced product line, designed to provide efficient heating, cooling, and hot water for commercial and industrial use.
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