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A low loss header is a crucial component in modern heating systems, designed to improve efficiency and performance. This guide will explore the intricacies of low loss headers, their benefits, and how they function within a heating system.
Condensing Low Loss Header SHE 135kW 1 1/2" CD INOX
Condensing Low Loss Header STAINLESS STEEL (INOX) - 135kW 1 1/2" (female threaded tappings) insulated
Availability: na wyczerpaniu
Dispatched within: 48 godzin
Condensing Low Loss Header SHE 90 1 1/4" CD INOX
Condensing Low Loss Header STAINLESS STEEL - 90kW 1 1/4" (female threaded tappings) insulated
Availability: na wyczerpaniu
Dispatched within: 48 godzin
Distribution Low Loss Header SKE 35kW, 1" insulated
Condensing Distribution Low Loss Header 1" 35kW - HORIZONTAL/VERTICAL
This low loss header has 4 x 1" tapings on 1 side and 2 x 1" tapings on the opposite side.
Availability: tymczasowo niedostępny
£225.00
Distribution Low Loss Header SKE 40kW, 1" insulated
Distribution Low Loss Header 1" 40kW - HORIZONTAL/VERTICAL
This low loss header has 4 x 1" tapings on 1 side and 2 x 1" tapings on the opposite side.
Hydraulic Coupling-Collectors SKE
SKE coupling-collectors are available in standard and Condens (DC) versions. The Condens version is equipped with a patented flow director. The Inox director maintains high efficiency of condensing boilers or heat pumps. The Inox director allows for alternating connection of pump groups with a spacing of 125mm. A version for heating circuits DN32 is also available. The standard version (2D+) offers limited possibilities for connecting pump groups. Universal construction (adaptation kit) enables installation within a 360° range. Connection of two, three, or four (4DC) pump groups is possible. Expansion of SKE 2DC+ for an additional heating circuit (expansion kit, only DN25) is possible. SKE 2DC+ are part of ready-made sets with pump groups – Kompania and Kompania PRO. Products are insulated with EPP molds.
Availability: duża ilość
Dispatched within: 48 godzin
Distribution Low Loss Header SKE 55kW, 1" insulated
Condensing Distribution Low Loss Header 1" 55kW - HORIZONTAL/VERTICAL
This low loss header has 4 x 1" tapings on 1 side and 2 x 1" tapings on the opposite side.
Availability: duża ilość
Dispatched within: 48 godzin
Distribution Low Loss Header SKE 70kW, 1" insulated
Distribution Low Loss Header 1" 70kW - HORIZONTAL/VERTICAL
This low loss header has 4 x 1" tapings on 1 side and 2 x 1 1/4" tapings on the opposite side.
Hydraulic Coupling-Collectors SKE
SKE coupling-collectors are available in standard and Condens (DC) versions. The Condens version is equipped with a patented flow director. The Inox director maintains high efficiency of condensing boilers or heat pumps. The Inox director allows for alternating connection of pump groups with a spacing of 125mm. A version for heating circuits DN32 is also available. The standard version (2D+) offers limited possibilities for connecting pump groups. Universal construction (adaptation kit) enables installation within a 360° range. Connection of two, three, or four (4DC) pump groups is possible. Expansion of SKE 2DC+ for an additional heating circuit (expansion kit, only DN25) is possible. SKE 2DC+ are part of ready-made sets with pump groups – Kompania and Kompania PRO. Products are insulated with EPP molds.
Availability: średnia ilość
Dispatched within: 48 godzin
Distribution Low Loss Header SKE 90kW, 2DC+ insulated
Condensing Distribution Low Loss Header 90kW - HORIZONTAL/VERTICAL
This low loss header has 4 x 1" tapings on 1 side and 2 x 1 1/4" tapings on the opposite side.
Availability: na wyczerpaniu
Dispatched within: 48 godzin
Low Loss Header 100kW + 2 way insulation manifold 1 1/2"
1 1/4" 70kW Coated Low Loss Header + 2 way insulated, connecting manifold with female threaded tapings 1 1/4"
Availability: na wyczerpaniu
Dispatched within: 48 godzin
Low Loss Header 100kW, 1 1/2" + 3 way insulated manifold 1 1/2" -set
1 1/2" 100kW Coated Low Loss Header + 3 way insulated, connecting manifold with female threaded tapings.
Availability: na wyczerpaniu
Dispatched within: 48 godzin
Low Loss Header 100kW, 1 1/2" insulated
ELTERM products are made of high-quality mild steel, manufactured in accordance with the highest testing and certification standards. All products are designed and welded to meet the strictest quality requirements.
Our factory has over 30 years of experience in the heating industry. Throughout these years, we have developed and invented numerous products that have become widely used. We distribute these solutions across Europe and other continents, ensuring quality and innovation in every application.
Please note: We (Culm Stores Distribution Elterm Ltd) do not offer any products made of so-called "galvanized stainless steel." Our products are made from genuine materials that meet rigorous EU & BS safety and quality standards.
Availability: duża ilość
Dispatched within: 3 dni
Low Loss Header 115kW, 2" + 2 way insulation manifold 2"
2" 115kW Coated Low Loss Header + 2 way insulated, connecting manifold with female threaded tapings 2"
Availability: na wyczerpaniu
Dispatched within: 48 godzin
Low Loss Header 115kW, 2" + 3 way insulation manifold 2" -set
2" 115kW Coated Low Loss Header + 3 way + 2 way insulated, connecting manifold with female threaded tapings.
Availability: na wyczerpaniu
Dispatched within: 48 godzin
Low Loss Header 115kW, 2" insulated
ELTERM products are made of high-quality mild steel, manufactured in accordance with the highest testing and certification standards. All products are designed and welded to meet the strictest quality requirements.
Our factory has over 30 years of experience in the heating industry. Throughout these years, we have developed and invented numerous products that have become widely used. We distribute these solutions across Europe and other continents, ensuring quality and innovation in every application.
Please note: We (Culm Stores Distribution Elterm Ltd) do not offer any products made of so-called "galvanized stainless steel." Our products are made from genuine materials that meet rigorous EU & BS safety and quality standards.
Availability: na wyczerpaniu
Dispatched within: 48 godzin
Low Loss Header 156kW, 2" + 2 way insulation manifold 2" set
2" 156kW Coated Low Loss Header + 2 way insulated, connecting manifold with female threaded tapings 2"
Availability: na wyczerpaniu
Dispatched within: 48 godzin
Low Loss Header 156kW, 2" + 3 way insulation manifold 2" -set
2" 156kW Coated Low Loss Header + 3 way, + 2 way insulated, connecting manifold with female threaded tapings.
Availability: na wyczerpaniu
Dispatched within: 48 godzin
Low Loss Header 156kW, 2" insulated
ELTERM products are made of high-quality mild steel, manufactured in accordance with the highest testing and certification standards. All products are designed and welded to meet the strictest quality requirements.
Our factory has over 30 years of experience in the heating industry. Throughout these years, we have developed and invented numerous products that have become widely used. We distribute these solutions across Europe and other continents, ensuring quality and innovation in every application.
Please note: We (Culm Stores Distribution Elterm Ltd) do not offer any products made of so-called "galvanized stainless steel." Our products are made from genuine materials that meet rigorous EU & BS safety and quality standards.
The Low-Loss Header, also known as a Hydraulic Balancer, is designed to separate the boiler’s circulation from the heating system, suitable for medium to high-power systems (25 kW and above, ideal for an average house). It is used in setups with one or more boilers and various heating circuits, such as floor heating, radiators, or hot utility water. The LLH automatically manages flow separation, eliminating the need for manual balancing of pump flows. Its construction includes a desilter and air vent, offering additional benefits of system cleaning and air removal while protecting the boiler from low-temperature corrosion of the return water.
Operational Modes:
- When the heat requirement equals the boiler’s power, the system operates in balance.
- If the requirement is less than the boiler’s capacity (e.g., thermostatic valves are closed), some heat returns from the LLH, signaling the boiler to decrease output or switch off.
- If the requirement exceeds the boiler’s capacity, increased pump suction signals the boiler to produce more heat.
Features of the Low Loss Header SHE 2”:
- Max flow: 7.4 m³/h
- Max power: 156 kW
- Connectors: 4 x 2" male threads
- Nominal pressure: 10 bar
- Max temperature: 110°C
- Capacity: 4 liters (or 1 liter in some configurations)
- Vent and drain valves included
Advantages for investors:
- Up to 30% longer boiler service life through protection from low return water temperatures
- Enhanced operational comfort via system desiltering and aeration
- Up to 30% longer pump service life due to smooth, undisturbed operation
- Faster boiler reactions to changing demands
- Cost savings of up to 50% compared to traditional 3- or 4-way valves
Advantages for installers:
- No need for complex system regulation, thanks to automatic flow management
- Reduced claims caused by air locking or improper operation
Variants Available:
- SHE – LLH: Power range from 40 to 420 kW
- SHE-OC: Insulated with polyprene shell, power from 40 to 156 kW (up to 420 kW can be insulated with ROCKWOOL upon request)
Customer satisfaction benefits from reliable, efficient heating operation with less maintenance and fewer issues.
Availability: średnia ilość
Dispatched within: 48 godzin
Low Loss Header 2 x 1 1/4" tapings and 6 x 1" tapings SKE 70 2D+
Distribution Low Loss Header 70kW - HORIZONTAL/VERTICAL
This low loss header has 6 x 1" tapings and 2 x 1 1/4" tapings.
Hydraulic Coupling-Collectors SKE
SKE coupling-collectors are available in standard and Condens (DC) versions. The Condens version is equipped with a patented flow director. The Inox director maintains high efficiency of condensing boilers or heat pumps. The Inox director allows for alternating connection of pump groups with a spacing of 125mm. A version for heating circuits DN32 is also available. The standard version (2D+) offers limited possibilities for connecting pump groups. Universal construction (adaptation kit) enables installation within a 360° range. Connection of two, three, or four (4DC) pump groups is possible. Expansion of SKE 2DC+ for an additional heating circuit (expansion kit, only DN25) is possible. SKE 2DC+ are part of ready-made sets with pump groups – Kompania and Kompania PRO. Products are insulated with EPP molds.
Availability: duża ilość
Dispatched within: 48 godzin
Low Loss Header 2 x 1 1/4" tapings and 6 x 1" tapings SKE 90 3DC
Condensing Distribution Low Loss Header 90kW - HORIZONTAL/VERTICAL
This low loss header has 6 x 1" tapings on 1 side and 2 x 1 1/4" tapings on the opposite side.
Availability: na wyczerpaniu
Dispatched within: 48 godzin
What is a Low Loss Header?
A low loss header, also known as a hydraulic separator or low loss manifold, is a device used in heating systems to separate the primary and secondary circuits hydraulically. This separation allows for optimal flow rates in both circuits, ensuring efficient heat transfer and system performance.
The primary function of a low loss header is to create a point of hydraulic separation between the primary circuit (typically containing the boiler or heat source) and the secondary circuit (which distributes heat to various zones or appliances). This separation helps maintain constant flow rates in both circuits, regardless of variations in demand from the secondary circuit.
How Does a Low Loss Header Work?
The operation of a low loss header is based on the principle of low flow velocity within the header itself. As water flow enters the header from the primary circuit, it slows down significantly due to the increased cross-sectional area. This reduction in velocity allows for efficient mixing of hot water from different sources and helps prevent interference between the primary and secondary circuits.
The low loss header typically has four connections:
- Primary flow (from the heat source)
- Primary return (back to the heat source)
- Secondary flow (to the heating system)
- Secondary return (from the heating system)
Water flows through these connections in a way that maintains hydraulic separation between the circuits. The low flow velocity within the header ensures that there is minimal pressure loss across the device, hence the name "low loss header".
Benefits of Using a Low Loss Header
- Improved System Efficiency
By separating the primary and secondary circuits, a low loss header allows each circuit to operate at its optimal flow rate. This separation can lead to improved overall system efficiency, as the commercial boiler system or heat source can operate more effectively without being affected by fluctuations in the secondary circuit.
- Enhanced System Flexibility
Low loss headers enable the integration of multiple heat sources and secondary circuits into a single system. This flexibility is particularly useful in complex heating systems or those with varying heat demands, such as those incorporating underfloor heating alongside traditional radiators.
- Simplified System Design
The use of a low loss header can simplify the design and installation of heating systems, especially in cases where multiple boilers or heat sources are involved. It eliminates the need for complex balancing valves and allows for easier system expansion in the future.
- Improved Air and Dirt Separation
Many low loss headers incorporate features for air and dirt separation, which can help maintain system cleanliness and efficiency over time. This added functionality can reduce maintenance requirements and extend the lifespan of system components.
- Constant Flow Rate
By maintaining constant flow rates in both circuits, a low loss header helps ensure stable and predictable system performance. This stability can lead to improved comfort for building occupants and reduced wear on system components.
When to Use a Low Loss Header
Low loss headers are particularly beneficial in the following scenarios:
- Systems with Multiple Heat Sources
When integrating multiple boilers or different types of heat sources (e.g., boilers and heat pumps), a low loss header can help manage the varying flow rates and temperatures effectively.
- Systems with Variable Secondary Demands
In heating systems with multiple zones or varying heat demands, a low loss header can help maintain stable primary circuit operation while accommodating fluctuations in the secondary circuit.
- High-Capacity Systems
Large-scale heating systems, such as those found in commercial or industrial buildings, often benefit from the use of low loss headers due to their ability to manage high flow rates and complex distribution networks.
- Systems Requiring Future Expansion
If there's a possibility of future system expansion or modification, incorporating a low loss header can make these changes easier to implement without significant disruption to the existing system.
Sizing and Installation Considerations
Proper sizing and installation of a low loss header are crucial for optimal performance. The header should be sized based on the maximum flow rate of the primary circuit, ensuring that the flow velocity within the header remains low enough to maintain hydraulic separation.
When installing a low loss header, consider the following:
- Positioning: The header should be installed vertically, with the primary flow connection at the top and the primary return at the bottom.
- Insulation: Proper insulation of the header and connecting pipework is essential to minimize heat loss and maintain system efficiency.
- Air Venting: Ensure that an automatic air vent is installed at the top of the header to remove any trapped air from the system.
- Dirt Separation: If the low loss header doesn't include built-in dirt separation, consider installing a separate dirt separator to maintain system cleanliness.
- Flow Direction: Pay close attention to the flow direction indicators on the header to ensure correct installation and optimal performance.
- Accessibility: Install the low loss header in a location that allows for easy access for maintenance and future modifications.
FAQ
How to calculate low loss header size?
Calculating the size of a low loss header involves considering the maximum flow rate of the primary circuit. The general rule is to size the header so that the flow velocity within it remains below 0.2 m/s. To calculate:
- Determine the maximum flow rate of the primary circuit in m³/h.
- Use the formula: Area = Flow Rate / (Velocity × 3600)
- Calculate the diameter using the area.
For example, if the maximum flow rate is 5 m³/h: Area = 5 / (0.2 × 3600) = 0.00694 m² Diameter = 2 × √(Area / π) = 0.094 m or 94 mm
Always round up to the nearest standard size and consult manufacturer guidelines for specific recommendations.
Is a buffer tank better than a low loss header?
Both buffer tanks and low loss headers serve important functions in heating systems, but they are not directly interchangeable. The choice between the two depends on the specific requirements of your system:
Low Loss Header:
- Provides hydraulic separation between both circuits
- Maintains constant flow rates
- Ideal for systems with multiple heat sources or variable secondary demands
- Takes up less space than a buffer tank
Buffer Tank:
- Stores thermal energy to reduce boiler cycling
- Provides a larger volume of water for system stability
- Can help manage heat pump systems more effectively
- Useful in systems with low water content or high temperature fluctuations
In some cases, using both a low loss header and a buffer tank can provide optimal system performance.
Is a hydraulic separator the same as a low loss header?
Yes, a hydraulic separator is essentially the same as a low loss header. These terms are often used interchangeably in the heating industry. Both devices serve the same primary function of providing hydraulic separation between the both circuits in a heating system.
Other terms that may be used to describe this component include:
- Low loss manifold
- Hydraulic break
- Hydraulic switch
- Decoupler
Regardless of the term used, the fundamental principle and function remain the same: to create a point of low flow velocity that allows for efficient hydraulic separation and optimal system performance.