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+7 (495) 366-00-24
e-mail: metoteh@gmail.com

Heat resistant thermocouple cable

The operating conditions of a particular system where some measurements are to be made may involve high temperatures. Accordingly, it is necessary to ensure the protection of measuring devices, which are often thermocouples. For this purpose, in particular, heat resistant thermocouple wires are used, which have a protective insulation to avoid damage of thermoelectrodes caused by high temperatures and other negative factors.

In Metotechnics you can buy thermocouple cable. For orders that can be made in different ways (phone, fax, email, website), the available grades are PTN-1100, PTN-800 and others.

More information about the materials, production methods, and application areas of the described products is presented in the appropriate sections of this page. An important source of information is the standards, which are also presented on the site.

Design

Metotechnics company supplies single-core and double-core heat resistant thermocouple wires (PTN) with nominal diameters of current-carrying cores - 0,20; 0,30; 0,50; 0,70; 1,2; 1,5; 3,2 mm.

Single-core thermocouple wires consist of a single thermoelectrode single-wire core covered with insulation of heat-resistant fiber applied by entire braiding and impregnated with an silica-organic composition OS 82-05 (technical conditions 84-725-78) and organosilicon varnish KO-916 (GOST 16508-70).

Products of the following grades are supplied:
  • PTN-1100 OH - current-carrying wire made of the alloy сhromel T NH 9.5.
  • PTN-1100 OA - current-carrying wire made of the alloy alumel NMcAK 2-2-1.
  • PTN-800 OK - current-carrying wire made of the alloy kopel MNMc 43-0.5.

Two-core unshielded thermocouple cables consist of two parallel stacked thermoelectrode wires, each of them is covered with insulation made of heat resistant fiber applied by entire braiding and impregnated with silica-organic composition OS 82-05 (technical conditions 84-725-78) and organosilicon varnish KO-916 (GOST 16508-70). They are enclosed in a common braid of the same insulating material and are also impregnated with silica-organic composition and an organosilicate varnish.

Our company supplies products of the grades:
  • PTN-1100 HA - current-carrying cores made of the alloys chromel T NH 9.5 and alumel NMcAK 2-2-1.
  • PTN-800 HK - current-carrying cores made of the alloys chromel T NH 9.5 and kopel MNMc 43-0.5.

Specifications

Specifications of single-core and double-core cables made of chromel and alumel:
  • Diametrical insulation thickness: from 0.6 to 0.8 mm.
  • Insulation breakdown voltage: ≥750 V.
  • They remain functional at a temperature (°C), not less than (h):
    • 1100 °C - 1 h;
    • 900 °C - 10 h;
    • 700 °C - 100 h.

Specifications of single-core and double-core cables made of chromel and kopel:
  • Diametrical insulation thickness: from 0.6 to 0.8 mm.
  • Insulation breakdown voltage: ≥750 V.
  • They remain functional at a temperature (°C), not less than (h):
    • 800 °C - 10 h;
    • 700 °С - 100 h.
Grade Range of measured temperatures Materials of thermoelectrode cores Insulation materials
PTN–1100 HА 0 °С --- +1100 °С Chromel Т – Alumel GOST 1790-77 Heat resistant fiber
PTN-800 HК 0 °С --- +800 °С Chromel Т – Kopel GOST 1790-77 Heat resistant fiber

Application area

Heat resistant thermocouple wires are intended for the production of cable thermoelectric converters (thermocouples), which are used for temperature measurement and for connecting (lengthening) of finished thermocouples with temperature measuring devices.

Analogues

The products PTN–1100 HA and PTN-800 HK are significantly improved analogues of wires of the grades PTN-900 technical conditions 16-505.663-74, PTSS, PTKS, PTKK, KTK technical conditions 4211-005-18121253-96, KTL technical conditions 4211-005-18121253-96, CEFIR-2200 ASTM E230, ANSI MC96.1, CEFIR-2400 ASTM E230, IEC 584, ANSI MC 96.1.

The use of PTN can serve not only as their full fledged replacement, but also provides additional opportunities in conditions of use at high temperatures. On customer request and in agreement with the developer, products can be made in other designs and sizes.

Prices

The prices for PTN thermocouple cable and specific items available for order are presented on the Cost page.

"Metotechnics"
e-mail: metoteh@gmail.com

Tel:
+7 (495) 366-00-24

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