District heating (DH) and waste-to-energy plants (UVTD) are at the heart of the energy transition.
At Despraz SA, we design, install, and maintain district heating networks for communities, neighborhoods, and industrial areas.
Our expertise covers the entire chain: from connection to substation, including pre-insulated pipes and control systems.
Each installation is designed to optimize efficiency, reduce losses, and ensure reliable and sustainable distribution.
Our Services
Distribution Networks
Design and installation of pre-insulated pipes for the transport of hot or superheated water. Precise sizing according to flow rates, temperatures, and network lengths. Mastery of welding and insulation techniques to minimize thermal losses. Installation of valves, compensators, and safety systems ensuring network stability and longevity.
Connections and Substations
Implementation of individual and collective connections with heat exchangers, regulation, and energy metering. Our substations are compact, high-performance, and easy to maintain. Integration of remote management systems for real-time consumption monitoring and performance optimization.
UVTD – Waste-to-Energy Plants
Interventions on heat recovery networks of incineration plants. High-temperature piping, reinforced insulation, and safety systems adapted to thermal and environmental constraints. Active contribution to waste-to-energy recovery and the production of local and renewable energy.
Extension and Renovation
Extension of existing networks for new connections. Renovation of aging sections with replacement of pipes, valves, and control equipment. Planned interventions to limit service interruptions.
Implemented Technology
Pre-insulated Pipes
- Steel or stainless steel pipes depending on temperature
- High-density polyurethane insulation
- PE casing for waterproofing
- Leak detection system
Regulation and Metering
- High-performance plate heat exchangers
- Motorized control valves
- Certified energy meters
- Remote Management and Supervision
Security
- Temperature limiters
- Safety valves
- Leak detection systems
- Hydraulic disconnectors
Advantages of District Heating
- Environmentally friendly: Recovery of renewable or waste heat
- Economical: Cost sharing and energy optimization
- Reliable: Permanent availability without individual maintenance
- Sustainable: Networks designed for 30-50 years of operation
- Scalable: Possibility of future extension and connections
Application Sectors
- Residential areas
- Industrial areas
- Hospitals and Nursing Homes
- Schools and public buildings
- Swimming pools and sports centers
- Greenhouses and agricultural infrastructure
- Commitment
Our Commitment
We support communities and operators in all phases:
- Feasibility study and sizing
- Design of networks and substations
- Implementation and commissioning
- Operator training
- Preventive and corrective maintenance
- Performance optimization
