Waterproof Anti-Corrosion Assembly Thermocouple

Waterproof Anti-Corrosion Assembly Thermocouple is designed for temperature measurement in wet, humid, and corrosive industrial environments. It combines a corrosion-resistant protection tube, fixed mounting structure, and IP65 waterproof aluminum junction box for reliable operation in demanding applications.

For a comparison of assembly and mineral-insulated designs, see our Sheathed vs Assembly Thermocouple guide.

Key Features

IP65 waterproof junction box with sealing ring and waterproof cable gland.
Corrosion-resistant protection tubes including 316L, 310S, Hastelloy C-276, and PTFE-lined options.
K, N, E, J, and T thermocouple types for different temperature requirements.
Threaded or flange mounting for fixed industrial installation.
Straight or L-Type probes, with custom dimensions available.
OEM customization for probe length, diameter, material, mounting, cable, and grounding.

Main Applications

Chemical reaction kettles and process equipment
Electroplating and pickling tanks
Water and wastewater treatment equipment
Coastal and marine equipment
Humid metallurgical environments
Pharmaceutical and food processing equipment

Key Specifications

Item	Available Options
Thermocouple Type	K / N / E / J / T
Protection Tube OD	Φ16 / Φ20 / Φ25 mm
Insert Length	100–1000 mm; custom lengths available
Protection Tube Material	316L SS / 310S SS / Hastelloy C-276 / PTFE lined
Mounting	M27×2 / M33×2 threaded; DN25 / DN40 / DN50 flange; custom options
Probe Configuration	Straight standard; L-Type custom
Junction Box	IP65 waterproof aluminum
Lead Length	1000 mm standard; custom lengths
Junction	Ungrounded standard; grounded custom
Accuracy	IEC 60584-1 Class 2 standard; Class 1 on request

Protection Tube Material Selection

Material	Typical Application	Maximum Temperature
316L SS	Salt spray, weak acid/alkali, coastal environments	800°C
310S SS	High-temperature and moderately corrosive environments	1100°C
Hastelloy C-276	Strong chemical corrosion; custom option	1000°C
PTFE Lined	Corrosive liquid immersion	260°C

Actual temperature limits depend on thermocouple type, protection tube material, installation, and service conditions. PTFE-lined probes are intended for lower-temperature corrosive liquid applications.

Temperature Range

Type	Typical Measurement Range
K-Type	-200°C to 1200°C
N-Type	-200°C to 1300°C
E-Type	-200°C to 900°C
J-Type	-210°C to 750°C
T-Type	-200°C to 350°C

For detailed thermocouple type selection, see our Thermocouple Types and Selection Guide.

Installation

Install threaded models into the equipment mounting hole or secure flange models with bolts.
Insert the protection tube to the required measurement depth.
The probe insertion length is fixed during manufacturing.
Check the sealing ring and waterproof cable gland to maintain IP65 protection.

If adjustable insertion depth is required, select a different mounting configuration.

Available Stock Sizes

Tube OD	Insert Length	Standard Material
Φ16 mm	100–800 mm	316L / 310S SS
Φ20 mm	100–900 mm	316L / 310S SS
Φ25 mm	100–1000 mm	316L / 310S SS

Non-standard diameters, lengths, materials, threads, and flange dimensions are available by custom order.

Related Thermocouple Products

Request OEM Thermocouple Support

Send us your thermocouple type, tube diameter and length, mounting specification, protection tube material, cable length, grounding requirement, and application conditions. Drawings, photos, and existing samples are welcome.

Amy – Sales

Email:
Amy-Easewise@tzheater.com

WhatsApp:
+86 188 8318 8154

Hanna – Sales

Email:
Hanna-Easewise@tzheater.com

WhatsApp:
+86 178 5163 6811