eng
English
русский
Español
FrançaisAs China Miniature Thermocouple Connectors Manufacturers and Thermocouple connectors Suppliers, Jiangsu Zhaolong Electrics Co., Ltd. is a regional high-tech enterprise and a production base of temperature sensors and temperature control instruments. We have jointly developed and produced a series of thermocouples (thermal resistances) and temperature control electronics with numerous R&D institutions and academies in Shanghai. These products are salable throughout the country and the world, offering an advantage in cost performance. Our products have a renowned reputation in the market and win customers' trust due to their excellent performance, attractive appearance, high reliability, advanced technology, and good cost performance.
With strong technical development team and patent results, we can undertake business for normal and special specifications, and can design & install various large-scale and small-scale automatic temperature control boxes and temperature control rooms and remote monitoring temperature control systems for customers.
Miniature Thermocouple Connectors Suppliers
information to be updated
-
If you have ever compared two thermocouples on the same pipe and watched them disagree by a few degrees, the sensor tip probably was not the problem. More often, the answer sits at the other end of the loop, in the terminal block where the thermocouple wires meet the instrument. That connection point is the cold junct...
READ MORE -
If you have ever aimed an infrared thermometer at a stainless steel surface and received an unexpectedly low reading, emissivity is almost certainly the reason. Stainless steel is one of the most common materials in industrial plants, yet its emissivity ranges widely depending on how the surface is finished, how hot i...
READ MORE -
Resistance temperature detectors, or RTDs, are among the most reliable temperature sensors used in industrial automation. As a manufacturer that has designed and built temperature sensors and temperature control instruments for years, we often hear the same question from process engineers and maintenance teams: how do...
READ MORE
Thermocouple connectors manufacturer for industrial temperature loops
Jiangsu Zhaolong Electrics Co., Ltd. is a Thermocouple connectors manufacturer and part of a production base for temperature sensors and temperature control instruments in Jiangsu, China. We have developed thermocouples, thermal resistances and control electronics together with R&D institutions and academies in Shanghai, and manufacture connector hardware alongside probes, thermocouple heads, compensation cable and transmitters. This allows us to match connector dimensions, polarity, body material and colour marking to the complete measuring chain rather than treating the connector as a generic electrical part.
Our connectors serve chemical, petrochemical, natural gas, daily chemical, power, metallurgy, building materials and machine-building industries. The range includes standard and miniature connectors, panel-mount sockets and special specifications produced from customer drawings or samples. Because we also design and install automatic temperature control systems, we understand what happens downstream of the connector and we select the connection accordingly.
- Maintain low and stable contact resistance between thermocouple, extension wire and instrument.
- Preserve polarity and thermocouple calibration so the control loop receives the correct millivolt signal.
- Provide mechanical strain relief and protection from dust, moisture and process heat.
- Allow quick replacement of a sensor or cable without rewiring the whole junction box.
Connector range and typical use
We supply thermocouple connectors as loose accessories for field termination and as pre-assembled connectors fitted to thermocouple probes. The correct configuration depends on the thermocouple type, the cable used, the mounting position and the maintenance plan for the equipment.
| Connector group | Typical use | Configuration inputs |
|---|---|---|
| Standard plug and socket | Connection between thermocouple, extension cable or thermocouple head | Thermocouple type, wiring termination, body colour, cable diameter |
| Miniature plug and socket | Portable instruments, compact panels, space-restricted equipment | Panel space, locking method, cable type and wire gauge |
| Panel-mount socket | Thermocouple heads, terminal boxes and control cabinets | Panel cut-out, terminal spacing, sealing requirement |
| Special specification | High ambient temperature, mechanical constraints, OEM projects | Customer drawing or sample, material requirement, order quantity |
Special-specification production is a normal part of our business. If the application needs a non-standard body, a specific cable gland, a custom pin arrangement or a particular body colour, we can manufacture it from a drawing or sample.
Materials, marking and critical specifications
Selection starts with the thermocouple calibration. We produce connectors for K, J, T, E and N systems, and can arrange special connectors for R, S and B assemblies. Body colours and positive/negative markings follow conventional thermocouple identification so a Type K connector is visually distinct from a Type J connector in the field.
- Body material: glass-filled thermoplastic for general industrial duty; special material and construction can be quoted for hot zones or chemically aggressive environments.
- Terminal style: screw-clamp or crimp-type contacts matched to the conductor size of the thermocouple or compensation wire.
- Cable entry: gland style and opening selected according to cable diameter and required ingress protection.
- Polarity and marking: colour-coded bodies, clear + and - terminals, and optional customer-specific marking.
- Mechanical fit: plug, socket or panel-mount dimensions checked against the thermocouple head, junction box or instrument panel.
We use these inputs to prepare a proposal with a defined connector configuration, not just a stock part number. Where a complete sensor assembly is required, the connector specification is combined with the thermocouple, protection tube and installation fitting in one drawing.
Process and application fit
Thermocouple connectors are small components, but they sit in the most sensitive part of the temperature loop. We match the connector design to the process so it remains reliable for the lifetime of the installation.
- Chemical industry: connectors for reaction vessels, pipelines and storage tanks are selected with sealed cable entry and corrosion-resistant body material.
- Petroleum and petrochemical: refining and processing units require stable signal transmission in vibrating and high-ambient-temperature areas, so mechanical locking and contact pressure are prioritised.
- Natural gas industry: transport lines, compressors and storage facilities need dust- and moisture-resistant connections that remain serviceable during maintenance.
- Daily chemical production: temperature-sensitive mixing and heating processes benefit from quick-disconnect connector styles that support cleaning and fast sensor replacement.
- Power, metallurgy and building materials: long cable runs and hot zones require correct compensation wire, connector materials and, when needed, signal conversion before the signal reaches the controller.
Integration with sensors, transmitters and control systems
A thermocouple connector is not an isolated component. We select it together with the sensor, extension cable, transmitter and controller so the complete loop behaves predictably. For new projects, we can integrate the connector into an Thermocouple Accessories package that includes heads, sleeves and mounting hardware. For existing equipment, we use the customer drawing to confirm that our connector mates with the installed thermocouple or panel.
When the signal travels a long distance or enters an automation system, we recommend matching the connector with thermocouple compensation wire and a temperature transmitter. We can provide the complete chain from the measuring point to the PLC, DCS or display instrument, and we will confirm the connector body, terminal style and mating details in the proposal.
Quality, testing and acceptance
Jiangsu Zhaolong operates under an ISO9001 quality system and holds CE certification for relevant products. We also obtained national explosion-proof production qualification for explosion-proof thermocouples and resistance temperature detectors, which supports our work on hazardous-area temperature assemblies. Our factory applies quality supervision throughout production and tests products before they are released.
Our laboratory and testing equipment cover low-temperature tanks, noble metal high-temperature test furnaces, oil tank test furnaces and base metal test furnaces. Calibration equipment provides resolution up to 0.01 °C over a temperature range from -200 °C to +2000 °C, with temperature difference control within ±0.1 °C. For complete sensor assemblies, we can provide calibration certificates; for connector-only orders, we confirm dimensional, polarisation and marking details in the inspection documentation supplied with the shipment.
All our products carry a 12-month warranty covering non-human damage. We also provide calibration guidance and maintain a spare parts supply so a failed connector or sensor can be replaced quickly.
Information we use to configure your solution
Every connector quotation from our factory starts with the working point of the thermocouple loop. The more exactly we understand the process and the existing equipment, the faster we can propose the correct connector and, if required, a complete sensor assembly.
| Project data | Why it changes the connector |
|---|---|
| Thermocouple type and temperature range | Determines body colour, polarity convention and contact material. |
| Connector style required | Standard plug, miniature plug, socket or panel-mount version. |
| Cable type and diameter | Defines the cable gland, terminal opening and strain-relief arrangement. |
| Ambient and process conditions | Heat, moisture, chemicals and vibration influence body material and sealing. |
| Panel or head drawing | Allows us to confirm cut-out dimensions, terminal spacing and mating height. |
| Quantity and delivery schedule | Helps plan batch production, packaging and export documentation. |
We can develop and manufacture from drawings or samples. This is our standard approach for OEM and ODM projects where the connector must match a customer-specific panel, thermocouple head or machine layout.
Installation, maintenance and spare parts
Before installation, the connector type, polarity and body colour should be checked against the thermocouple and compensation wire. A reversed pair creates a measurement error that is difficult to trace in a running process. Our proposal includes the marking details so the installation team can verify the connection before powering the loop.
Connector maintenance is normally limited to cleaning the contacts and checking termination torque. We supply spare connector kits with sensor orders where requested, and we can arrange replacement parts for equipment already installed in your plant. This reduces downtime when a connector is damaged during maintenance or cable replacement.
Frequently asked questions
Do you manufacture connectors for K, J, T, E and N thermocouples?
Yes. Our standard connector range covers these common thermocouple types with the corresponding body colours and polarity markings. For R, S and B systems, or where a customer uses a different calibration, we can produce special connectors to order.
Can you produce connectors based on our drawing or sample?
Yes. Customised production is a core part of our factory. Send us the drawing, sample or reference part, and we will confirm the body, terminal style, material and dimensional requirements before quoting.
Are the connectors supplied separately or pre-assembled with thermocouples?
Both options are available. We supply loose connectors for field termination, and we also assemble connectors onto thermocouple probes so the complete sensor is ready for installation. This avoids mismatched polarity and saves assembly time on site.
What quality documentation is available with connector orders?
Our factory operates under the ISO9001 quality system and holds CE certification for relevant products. Connector orders are produced under the same quality supervision as our temperature sensors, and complete sensor assemblies can be supplied with calibration certificates and test reports.
How quickly do you respond to a connector inquiry?
We reply to every inquiry within 12 hours. In the initial response we confirm the connector configuration, clarify any missing project data and provide the required quotation information.
-
+86-181 1593 0076 (Amy)
-
+86 (0)523-8376 1478
-
[email protected]
-
No. 80, Chang'an Road, Dainan Town, Xinghua City, Jiangsu, China
