Features

• Wider Application Range
• Since the sheathed heater can be easily attached/detached and the sheath can be bent to arbitrary forms, you can attach the sheathed heater to a complicated place where you have to bend the heater. In addition, we can design the heater as per your order according to the shape of the target to be heated and required heat amount.
• Direct Heating Available
• Since the sheathed heater has a heat generating body in a metal sheath with the gap firmly filled with a highly-pure inorganic insulator, you can heat water, oil, etc. by making the heater come in direct contact with them.
• Easier Handling
• Bending processing is available up to a bend radius 2.5 times longer than the outer diameter of the sheath. Our heaters can be easily installed in various places at a site.
• Longer Product Life
• Since the heater is insulated and sealed with a chemically stable insulator, you can use the heater for a long period of time.
• Mechanical Strength/Pressure Resistance
• The heater can be used with security even in the conditions of a place with vibration, corrosive atmosphere, etc.
• Outer Diameter of Sheath Available
• We can manufacture the sheath with the outer diameter of 6.0 to 30 mm.

Features

• Wider Application Range
• Since the outer diameter is small, our heaters can be installed onto a small heating body. In addition, since the structure is a sheath type, our heaters are tolerant for high temperature and high pressure, and can be used for wide temperature range of -200 to 650℃.
• Uniformity
• Because we can manufacture a longer heat generating part than the ones of other heaters, wider range can be heated/pre-heated, providing effects similar to heating sheets.
• Easier Handling
• The minimum bending radius is 2.5 times longer than the outer diameter of the sheath. Our heaters can be easily installed in various places at a site.
• Longer Product Life
• Our heaters have a longer life since they are insulated and sealed with magnesium oxide, which is chemically stable, to alleviate insulation resistance deterioration and accidents of disconnection, etc.
• Mechanical Strength/Pressure Resistance
• Our heaters can be used even in the conditions of a place with vibration, corrosion atmosphere, etc.
• Outer Diameter of Sheath Available
• We can manufacture the outer diameter of the sheath of 1.0 to 8.0 mm.

Specifications

Specifications

Types and Features of Metal Protection Tube Materials

Note

• The normal temperatures described here are the maximum temperature when mechanical strength is not required for measurement such as temperature measurement in a furnace. If strength calculation is required, adopt the maximum temperature with allowable stress specified described in the High Pressure Gas Safety Act.
• The normal use temperatures have been described referring to JIS and manufacturer’s catalog; therefore, they are not guaranteed values.

Type and Feature of Protection Tube Surface Processing (Including Cover)

※1The temperature limit under normal operation were described referring to JIS and manufacturer’s
catalog; therefore, they are not guaranteed values.

Specifications

※1The common use temperature limits were described referring to JIS and manufacturer’s catalog;
therefore, they are not guaranteed values.

Features

• Wider Application Range
• Since the outer diameter is small, you can measure the temperature of small targets for a wide temperature range of -200 to +500℃.
• High Response
• Since the tube is thin and the heat capacity is small, RESIOPAK is sensitive to minor temperature changes and responds quickly.
• Easier Handling
• Since the bending processing is easy (the minimum bend radius is two times longer than the sheath outer diameter), you can easily install the sensor at sites in places with many bends. (However, the tip of 70 mm is excluded)
• Longer Product Life
• Since the RESIOPAK sheathed resistance thermometer sensor’s conducting wire and resistance element are insulated and sealed with chemically stable magnesium oxide, the product life is longer than conventional resistance thermometer sensors for aging change, disconnection, etc.
• Excellent Mechanical Strength/Vibration Resistance
• The sensor can be used even under the conditions of a place with vibration, corrosive atmosphere, etc.
• Sheath Outer Diameter Manufacturing Available
• We can manufacture a sheath outer diameter φ0.8 to φ12.75 mm. Up to φ1.0 mm is available for the minimum temperature sensing part outer diameter.
• Sheath Length Manufacturing Available
• We can manufacture up to 300 m depending on the sheath outer diameter.
• Special Needs Handling
• Since the sheath outer diameter is small and bending processing is easy, the sensor can be installed in a small space without disturbing the flow of the target to be measured. We have many types of sheath outer diameter and can also manufacture a single sheath with two elements (six conducting wires). We handle a wide range of needs with various outer diameters.

Specifications

	Element	Sheath			Conducting wire		Sheath max. length (m)	Approx. weight (g/m)
		O.D. Outer diameter (mm)	t Thickness (mm)	Material	Core wire diameter (mm)	Resistance per wire (Ω/m)
Single element	Single element	Φ1.6	10% or more of sheath outer diameter	316SS	10% or more of sheath outer diameter	6.34Max.	100	10
		Φ3.2				1.59Max.	83	45
		Φ4.8				0.71Max.	35	100
		Φ6.4				0.40Max.	20	180
		Φ8.0				0.25Max.	11.5	280
		Φ9.0				0.20Max.	21	370
		Φ12.75				0.10Max.	10.5	660
Double element	Double element	Φ3.2	10% or more of sheath outer diameter	316SS	10% or more of sheath outer diameter	1.59Max.	83	45
		Φ4.8				0.71Max.	35	100
		Φ6.4				0.40Max.	20	180
		Φ8.0				0.25Max.	11.5	280
		Φ9.0				0.20Max.	21	370
		Φ12.75				0.10Max.	10.5	660
Single 4-conducting wire	Single 4-conducting wire	Φ0.8	10% or more of sheath outer diameter	316SS	10% or more of sheath outer diameter	25.37Max.	—	—
		Φ3.2				1.59Max.	83	45
		Φ3.8				0.71Max.	35	100
		Φ6.4				0.40Max.	20	180
		Φ8.0				0.25Max.	11.5	280
		Φ4.8				0.14Max.	35	370
Conducting wire material						Nickel (Single & Double) / Copper (Single 4-conducting)

Specifications

Materials and Standard Dimensions of Metal Protection Tubes

Material and Standard Dimensions of Non-metal Protection Tubes

※1The common use temperature limits were described referring to JIS and manufacturer’s catalog; therefore, they are not guaranteed values.

Features

• Wider Application Range
• Since the outer diameter is small, you can measure the temperature of small targets. In addition, since the structure is a sheath type, AEROPAK is high temperature/high pressure tolerant and can be used for a wide temperature range of -200 to 1,260℃.
• High Response
• Since a thermocouple with a smaller outer diameter has smaller heat capacity, AEROPAK sensitively responds to temperature changes.
• Easier Handling
• The minimum bend radius is two times larger than the sheath outer diameter. AEROPAK easily installed in various places at a site.
• Longer Product Life
• In comparison to conventional thermocouples, AEROPAK has a longer life since it is insulated and sealed with magnesium oxide which is stable chemically for thermo-electromotive force deterioration and accidents of disconnection, etc.
• Mechanical Strength/Pressure Resistance
• Selecting sheath materials allows safe use even in places with high vibration, corrosive atmosphere, high temperature and low temperature. Even a sheath with a small outer diameter allows approx. 350 MPa of pressure resistance strength at 650℃.
• Sheath Outer Diameter Manufacturing Available
• We can manufacture a sheath outer diameter of 0.08 to 22 mm.
• Sheath Length Manufacturing Available
• We can manufacture up to approx. 1,000 m depending on the sheath outer diameter.
• Special Needs Handling
• We can handle various needs with our factory dedicated to sheaths.

Specifications

	Sheath (mm)		Core wire diameter (mm)	Thermocouple type and sheath material (representative example)
	O.D. 外径	t Thickness		SN	SK	SE	SJ	ST
Single element	Φ0.08		10% or more of sheath outer diameter (4)	–
	Φ0.1			–	B		–	–
	Φ0.15			B	B・SA
	Φ0.25				C・B・SA
	Φ0.5				C・B・K・SA
	Φ1.0	10% or more of sheath outer diameter		C・B・K	C・B・K・SN
	Φ1.6		15% or more of sheath outer diameter	D・B・K	D・B・K・SN		C	C
	Φ3.2			D・B・K	D・B・K・SN		C	C
	Φ6.4			D・B	D・B・K・V・SN		C	C
Double element	Φ1.6		10% or more of sheath outer diameter	C・B・K	C・B・K・SN
	Φ3.2		15% or more of sheath outer diameter	D・B・K	D・B・K・SN		C	C
	Φ4.8			D・B・K	D・B・K・V・SN		C	C
	Φ6.4			D・B	D・B・K・V・SN		C	C
	Φ8.0			D・B	D・B・K・V・SN		C	C
Triple element	Φ4.8		10% or more of sheath outer diameter	C・B	C・B		C	C
	Φ6.4		10% or more of sheath outer diameter (4)	D・B	D・B		C	C
	Φ8.0			D・B	D・B		C	C

• Sheath material: B = NCF600eq (1) C = 316SS D = 310SSS K = H2300 (2) V = Hastelloy-X SA = SC1000H (5) SN = SC1000N (5)
• NCF600eq is equivalent to Inconel 600.
• H2300® is a special sheath material for HOSKINS2300®.
• We can manufacture AEROPAK with sheath diameters and materials other than the above. Please contact us. (Example : 347SS, 321SS, 316LSS, etc)
• JIS is not applicable for sheath outer diameter of Φ0.25 or less.
• SC1000H and 1000N are supercouples for high temperature and the core wire diameter is 20% or more of the sheath outer diameter.

Types of Temperature Measuring Junction

Symbol	Type	Shape	Features	Sheath outer diameter applied (mm)
				Single	Double	Triple
G （♯8）	Ground		Pressure resistance of approx. 350 MPa or more. Unsuitable for places with electromagnetic induction interference.	Φ0.5 to Φ8.0	Φ1.6 to Φ8.0	Φ4.8 to Φ8.0
U （♯9）	Non-ground		Used most commonly because of no limitation by measurement targets although the sensitivity is lower than the ground type. Longer product life due to the element being covered by an insulator.	Φ0.08 to Φ8.0	Φ1.6 to Φ8.0	Φ4.8 to Φ8.0
U （♯5）	Non-ground/separation		The temperature measuring junction is set for each pair of double elements and the circuit is separated from an indicator and a recorder. The features are the same as the non-ground type.	–	Φ3.2 to Φ8.0	Φ4.8 to Φ8.0
（♯6）	Exposure		The sensitivity is better because the element is exposed. Suitable for measuring temperature of gas such as the exhaust gas of an engine. Mechanically weaker than other temperature measuring junctions.	Φ1.0 to Φ8.0	Φ3.2 to Φ8.0	Φ4.8 to Φ8.0