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Thermal Installation Sleeve

The thermal installation sleeve is used together with two-section thermocouples (resistance) and bimetal thermometers to protect temperature-sensing elements during normal operation. It can also be used for high-pressure and high-flow-rate applications. At room temperature, the sleeve withstands static external pressure without rupture. Allowable working pressure depends on sleeve material, diameter, wall thickness, construction, installation method, and the flow rate and type of the measured medium.

  • Installation together with two-section thermocouples (resistance).
  • Installation together with bimetal thermometers.
  • High-pressure and high-flow-rate temperature-measurement applications.
  • Installation points requiring protection and convenient replacement of the temperature-sensing element.
  • Designed with reference to IEC international standards.
  • Blind-hole machining.
  • Can be manufactured and installed at the same time as the equipment.
  • Different pressure levels are available to meet different requirements.
  • Hydrostatic testing can be performed when required, at 1.5 times the pressure-resistance grade of the sleeve; X-ray flaw detection for wall thickness, eccentricity and other items can be performed according to user requirements.
  • Threaded connection.
  • Flanged connection.
  • Welded connection.

In the table below, T is the listed dimension. T for all listed models is not more than 260 mm.

Model Connection/interface N Dimension E Dimension D T Nominal pressure (P600)
TH03C M20×1.5 (NPT1/2) Φ28 Φ36 ≤260 mm ≤38 MPa
TH01E M20×1.5 (NPT1/2) NPT1 (NPT3/4) / ≤260 mm ≤5 MPa
TH01F M20×1.5 (NPT1/2) M27×2 (M33×2) Φ16 ≤260 mm ≤5 MPa
TH01K M20×1.5 (NPT1/2) NPT1 (NPT3/4) / ≤260 mm ≤5 MPa
TH03E M20×1.5 (NPT1/2) Φ38 Φ25 ≤260 mm ≤38 MPa
TH02F M20×1.5 (NPT1/2); M27×2 Φ34; Φ39 / ≤260 mm ≤38 MPa
TH03H M20×1.5 (NPT1/2) M27×2; M33×2 Φ16; Φ20 ≤260 mm ≤5 MPa
TH02B M20×1.5 (NPT1/2); M27×2 Φ34; Φ39 / ≤260 mm ≤10 MPa
TH02H M20×1.5 (NPT1/2); M27×2 Φ34; Φ39 / ≤260 mm ≤38 MPa
TH02C M20×1.5 (NPT1/2) Φ62 Φ16 ≤260 mm ≤38 MPa
TH01T M20×1.5 (NPT1/2) Φ62 Φ16 ≤260 mm ≤38 MPa
TH03J M20×1.5 (NPT1/2) Φ38 Φ22 ≤260 mm ≤38 MPa
TH03K M20×1.5 (NPT1/2) Φ42 Φ18 ≤260 mm ≤38 MPa
Material Service temperature Characteristics and use
1Cr18Ni9Ti -200 to 800°C High-temperature corrosion resistance; usually used as general heat-resistant steel.
304 -200 to 800°C Low carbon content and good intergranular corrosion resistance; usually used as general heat-resistant steel.
316 -200 to 750°C Low carbon content and good intergranular corrosion resistance; used as corrosion-resistant steel.
316L -200 to 750°C Ultra-low carbon content and good intergranular corrosion resistance; used as corrosion-resistant steel.
Monel -100 to 700°C Nickel alloy with good intergranular corrosion resistance; suitable for strong sulfuric acid and other corrosion-resistant applications.
Hastelloy C-276 -100 to 700°C Nickel-chromium-iron alloy with excellent high-temperature oxidation resistance; usually used as heat-resistant steel.
Inconel600 -100 to 1000°C High-temperature oxidation resistance and corrosion-resistant type; usually used as heat-resistant steel.
310S -200 to 1000°C Nickel-based high-temperature alloy steel with excellent oxidation resistance and corrosion-resistant type; usually used as heat-resistant steel.
GH3030 0 to 1100°C Nickel-based high-temperature alloy steel with excellent oxidation resistance and corrosion-resistant type; usually used as heat-resistant steel.
GH3039 0 to 1300°C Nickel-based high-temperature alloy steel with excellent oxidation resistance and corrosion-resistant type; usually used as heat-resistant steel.
High alumina 0 to 1300°C Industrial ceramic tube with excellent oxidation resistance and corrosion resistance.
Corundum 0 to 1600°C Industrial ceramic tube with excellent oxidation resistance and corrosion resistance.
3YC52 0 to 1300°C High-temperature alloy with excellent oxidation resistance, corrosion resistance and mechanical properties; suitable for high-temperature applications.
Molybdenum disilicide 0 to 1600°C Excellent oxidation resistance, corrosion resistance and good mechanical properties; suitable for high-temperature applications.
  • TH03C, TH01E, TH01F, TH01K, TH03E
  • TH02F, TH03H, TH02B, TH02H, TH02C
  • TH01T, TH03J, TH03K
  • Model, sleeve code, insertion depth and sleeve material.
  • Measured medium, operating temperature, operating pressure, flow rate and medium corrosiveness.
  • Connection method, thread or flange dimensions, and available installation space.
  • Whether hydrostatic testing or X-ray flaw detection is required.
  • Model of the matched thermocouple (resistance) or bimetal thermometer.
  • Two-section thermocouple (resistance): used with the thermal installation sleeve.
  • Bimetal thermometer: used with the thermal installation sleeve.