Heated Hose – Standard Liquid & Gas Hoses Isopad IHH-ST4A/ST4D (to 400°C)

The Thermocoax Isopad IHH-ST4A/ST4D is a flexible heated hose for liquid and gaseous media with a maximum operating temperature of 400°C.

The standard versions of the IHH-ST4A/ST4D heated hose have corrugated stainless steel inner hose constructions with stainless steel braiding for pressurised operation. The thermal insulation consists of high temperature fleece and silicone foam and mechanical protection is provided by a stainless steel braid and soft EPDM endcaps.

Built-in Pt100 sensors provide optimum temperature control for the medium and homogeneous heat distribution is achieved using evenly wrapped resistance heating cable throughout the hose.

Isopad IHH-ST4A-ST4D Heated Hose – Illustration

Area Classification	Nonhazardous, Ordinary Area
Ingress Protection	IP54
Electrical Protection Class	Class I
Maximum Withstand Temperature (Power Off)	400ºC
Ambient Temperature Range	-20ºC +40ºC
Length	Up to 19m (Available in steps of 0.1m)
Tolerances	According to DIN 20066
Nominal Width	4, 6, 8, 10, 13mm
Heater Type	Resistance Heating Cable
Material	Various Alloys
Material of Insulation	Glass Silk
Material of Outer Sheath	Woven Glass Silk
Carrier	Stainless Steel Braid
Inner Hose	Corrugated Stainless Steel Hose
Fittings	AGR or DKR according to ISO 228/1
Fitting Material	Stainless Steel
Thermal Fabric Fibre Insulation	Meta-Aramide-Fleece + AES-wool of 8 to 12mm Thickness
Thermal Foam Insulation	Silicone of 9 to 11mm Thickness
Outer Protection	Stainless Steel Braid
Connection Length	1.5m
Cross Section	Depending On Design
Maximum Operating Temperature	180ºC
Insulation Material	Silicone
Sensor Type	PT100 Two Wire DIN Class B
Sensor Lead Length	1.5m
Lead Cross Section	Depending On Design
Sensor Lead Material	Silicone
Frequency	50-60Hz
Nominal Operating Voltage	120 or 230 VAC
Nominal Power	Depending On Design
Power Per Meter	Maximum 150w/m (See Performance Table)
Minimum Insulation Resistance	100MΩ
Maximum Operating Temperature	400ºC
Maximum Operating Pressure	See Performance Table
Minimum Bend Radius	See Performance Table
Options for Special Versions	Other nominal sizes and inner hoses, e.g. supplied components for individual heating Sizes up to 120 m Sensor types, e.g. thermocouples Type K, Type J, etc. Supply voltage up to 400 V, single-phase or three-phase Higher power outputs Increased ingress protection, e.g. IP65 for outdoor applications Increased pressure resistance, up to 475 bar at 100°C (depending on nominal diameter) Other materials, e.g. for applications recommending silicone free production Approved components for the use in hazardous areas according to IECEx and ATEX Replaceable inner hoses for nonpressurized gas analysis Premounted plugs and special supply and messenger leads Controlling devices and high temperature lock-out thermostats

Heated Hose – Standard Liquid & Gas Hoses Isopad IHH-ST4A/ST4D (to 400°C) – Performance Table

Nominal Diameter		Power (w/m)	Maximum Static Pressure (Bars)		Minimum Bend Radius (mm)
Code	mm	at 100ºC	at 20ºC	at 100ºC	Static	Dynamic
2	6	120	125	62	50	160
3	8	130	125	62	65	250
4	10	140	100	50	75	260
5	13	150	85	42	90	280
Dynamic performance represents two dimensional single piston stroke per second (1 Hz) with compressed air (medium) 6 bars at 100°C operating and 20°C ambient temperature. Dynamic performance of heated hoses is recommended to be tested for each individual application