This grounding terminal block is a safety accessory specifically developed for integrated hydronic and electric underfloor heating systems. Ground Terminal Block for Underfloor Heating Pipe Circuit is manufactured using a high-conductivity, thickened, nickel-plated brass body (formed via integral die-casting) and a flame-retardant, high-temperature-resistant insulating base, making it compatible with both hydronic and electric heating piping.
The low-impedance brass body rapidly dissipates static electricity and fault-induced leakage currents, while the flame-retardant insulating component eliminates the risk of short circuits caused by water-electricity contact. The snap-fit locking mechanism ensures a secure grip on the ground wire, and the standard universal thread allows for direct installation onto various underfloor heating manifolds.
The unit is compact, fitting easily into narrow pipe shafts and heating cabinets. It is simple to install and maintain, available in multiple specifications, and suitable for a wide range of HVAC projects—from residential homes to commercial shops and office buildings. It addresses potential electrical leakage hazards at the source while ensuring both the stable operation of the heating system and electrical safety during installation.
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Product Specifications |
L |
d1 |
d2 |
d3 |
Pipe Thread |
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DN |
Size |
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/ |
Ø108 |
17.4 |
24.6 |
66.5 |
108 |
Ø72.6-16P |
Manufactured via integral die-casting using thickened brass with an overall nickel-plated finish. It offers extremely low electrical impedance, enabling rapid dissipation of static electricity and stray leakage currents. It is corrosion-resistant, oxidation-resistant, and maintains consistent conductivity over long-term use.
The terminal block features a base molded from specialized flame-retardant, insulating material. It withstands the temperature cycling inherent in underfloor heating systems and offers moisture and water resistance, effectively isolating water and electrical circuits to eliminate risks of short circuits, leakage, and electric shock.
Brass base materials undergo batch-by-batch spectral analysis, while insulation components undergo dedicated withstand-voltage and flame-retardancy testing; material specifications meet safety acceptance standards for residential and commercial HVAC projects.
A low-impedance conductive structure instantly dissipates static electricity accumulated on metal heating pipes and rapidly drains stray leakage currents caused by circuit faults, eliminating electric shock hazards at the source.
An insulating base completely separates the metal water piping from the grounding wire; with excellent moisture and water resistance, Ground Terminal Block for Underfloor Heating Pipe Circuit prevents insulation failure or short circuits caused by water-electricity contact, even in the humid, fluctuating temperature conditions of underfloor heating environments.
Features a fastening wire-clamping clip; once the ground wire is inserted and the clip is pressed shut, it provides uniform, firm clamping force that resists loosening or detachment due to pipe vibration or temperature changes, ensuring continuous grounding continuity.
The valve body connection utilizes industry-standard threading for underfloor heating manifolds, allowing for direct assembly with mainstream manifolds without additional adapters—suitable for both new installations and retrofitting existing systems.
The streamlined, compact structure saves space within manifold cabinets and vertical pipe shafts; it fits into tight, concealed installation points without interfering with other piping components.
Available in various sizes, it is compatible with both metal piping for hydronic underfloor heating and metal conduits for electric underfloor heating, making it suitable for everything from small residential units to large-scale commercial heating projects.
Brass conductive bases undergo batch-by-batch spectral composition verification; insulating bases and conductive contacts undergo high/low-temperature cycling and insulation durability tests to screen out components prone to insulation failure or poor conductivity before assembly.
Each grounding terminal undergoes rigorous conductivity, insulation/leakage-proof, and thread compatibility testing. We strictly control grounding discharge capacity and insulation protection ratings to prevent electrical leakage and loose connections.
Each Ground Terminal Block for Underfloor Heating Pipe Circuit is laser-marked with a unique production batch number. Data across the entire production chain—from forging and assembly to final inspection—is archived for traceability. Shipments are accompanied by complete material reports and factory certificates of conformity.
Products come with a 12-month manufacturer's warranty covering inherent quality issues related to materials and workmanship, such as cracking of the brass body, aging of insulation components, or failure of the wire-locking mechanism.
Professional technicians provide one-on-one, hands-on guidance covering grounding wiring, terminal assembly, lock installation, and troubleshooting for insulation/leakage issues, thereby minimizing the need for rework during on-site installation and commissioning.
Our multilingual online support team accommodates global time zones, ensuring rapid responses to overseas HVAC wholesalers and underfloor heating contractors regarding product selection, bulk order tracking, and after-sales support requests.
We offer customized sizing for large-scale underfloor heating projects based on manifold specifications and piping layout requirements. We also provide a stable, long-term supply of individual replacement parts, such as insulation bases, conductive gaskets, and wire-clamping clips.
Suitable for whole-house underfloor heating in apartments and private homes; effectively mitigates static electricity and leakage risks associated with co-located plumbing and electrical installations; compact design fits easily into small residential heating cabinets.
Designed for commercial heating systems subject to high usage frequency and humid environments; ensures stable grounding and leakage discharge to prevent electric shock accidents in business premises; ideal for standardized, large-scale HVAC installations.
Designed for the extensive piping networks found in multi-story office buildings, these units feature standardized threading for bulk compatibility and come with full documentation for project acceptance, making them ideal for large-scale HVAC tenders and completion filings.
Ideal for upgrading systems where basic grounding accessories have failed due to aging (loss of insulation or conductivity). These specialized grounding terminals can be installed as direct replacements without altering embedded piping; they offer easy installation and a short retrofit timeline, providing a cost-effective way to enhance system safety.
Before the start of each heating season, open the underfloor heating cabinet to inspect the grounding terminal. Check the insulation base for cracks, deformation, or whitening caused by moisture, and ensure the grounding wire clamp is secure and not loose or detached.
At the end of the heating season during shutdown maintenance, use a multimeter to test the terminal's conductivity, ensuring the brass body is free from oxidation and the conductive circuit is intact.
For systems located in basements or on ground floors, regularly wipe moisture and limescale from the terminal surface to prevent long-term water accumulation from corroding the insulation components and the brass conductive body.
If the insulation base cracks, the clamp loses elasticity, or the conductive gasket oxidizes or rusts, there is no need to replace the entire terminal. Simply purchase and install genuine replacement parts to restore functionality, thereby reducing long-term maintenance costs.
A: Standard basic grounding components often suffer from high electrical impedance and insulation materials that lack temperature and moisture resistance. In the humid environments and fluctuating thermal conditions typical of underfloor heating, they tend to fail prematurely, and the grounding wire is prone to becoming loose or detaching. This product features a highly conductive, nickel-plated brass component for rapid static and leakage current dissipation, and a flame-retardant, insulating base that effectively isolates electricity from water. Its snap-fit wire locking mechanism ensures a secure, stable connection. By addressing conductivity, insulation, and wiring integrity, it ensures the electrical safety of underfloor heating systems and offers a low failure rate during long-term use.
A: The insulating component is made from flame-retardant, heat-resistant material specifically designed for underfloor heating. It undergoes rigorous factory testing, including thousands of high/low-temperature cycles and durability/withstand-voltage tests. It will not soften, crack, or experience insulation breakdown within standard operating temperature ranges. It maintains stable water-isolation performance in humid environments, effectively preventing short circuits caused by contact between electricity and water.
A: It utilizes standardized HVAC industry thread specifications, making it compatible with mainstream residential and commercial manifolds from both domestic and international brands. Custom thread specifications are available for large-scale projects involving non-standard manifolds.
A: The snap-fit mechanism employs a highly elastic, wear-resistant metal spring clip. Even after repeated disconnections and reconnections within standard usage limits, the reduction in clamping force is negligible, ensuring the ground wire remains firmly secured. Should elasticity decrease due to long-term, high-frequency use, the snap-fit clip can be replaced individually without needing to replace the entire terminal unit.
A: It is fully compatible with both. This ground terminal block is optimized for the operating conditions of both heating system types; it can be installed on metal manifolds for hydronic systems and metal piping components for electric systems. A single accessory fits both mainstream underfloor heating systems, simplifying inventory management for projects.
Address
Bingang Industrial Park, Ganjiang Town, Yuhuan City, Zhejiang Province, China
