Glass-Line Inert Gas Heated Hose (JCH)

JCH is the electrically heated hose our catalog lists under glass production lines: a high-temperature, low-pressure build that keeps a line carrying inert gas at temperature from the point where it leaves the supply to the point of use. The catalog states the application as glass production lines, where the operating temperature is high, for conveying inert gas. Maximum heat resistance is up to 230 °C (446 °F), higher temperatures are custom on request, and the catalog prints seven bore sizes for this product, 1/4" to 1".

• Max heat resistance230 °C / 446 °F, higher on request
• Pressure classlow pressure, per-size table below
• Inner tubeB, TB, T or X build, 1/4"–1"
• Supply110 / 220 / 380 Vac, 12 Vdc
• SensorJ, K, Ni120, PT100, PT1000

Overview

The catalog gives no English name for this product, so “glass-line inert gas heated hose” is a name that describes its application. The catalog application is glass production lines, where the operating temperature is high, for conveying inert gas.

The hose both insulates and heats. The heating layer is made of heating elements braided uniformly around the hose, to minimise differences in temperature distribution along the inner wall.

With surface temperature in mind, the hose is made with high-insulation-efficiency materials.

The catalog prints this as a low-pressure product, with seven bore sizes from 1/4" to 1". For a small-bore analyzer sample line, see the heated sample line; for hot-melt or PUR adhesive machines, see the hot-melt adhesive hose, which is listed on the same T-STD table. For higher pressures, see the heated high-pressure builds.

Specifications

All values as printed in the Jingcheng 2025 electrically heated hose catalog.

Size and pressure table

All values as printed in the Jingcheng 2025 electrically heated hose catalog.

Full catalog: Heated hose catalog (PDF, 4.9 MB)

Materials and construction

• Inner tube: specified on the order form by model-code letter – B stainless corrugated tube, TB PTFE hose with stainless braid, T PTFE hose, X special material. Which of them suits a glass-line gas run depends on the gas and the temperature at the use point; tell us both and we will propose the tube.
• Heating layer: heating elements braided uniformly around the hose, to minimise differences in temperature distribution along the inner wall.
• Insulation: high-insulation-efficiency material, selected with surface temperature in mind.
• Outer surface: the hoses in the photo show a braided silver outer sleeve. The catalog page does not name the cover material, so we specify the cover on the drawing for your line rather than guess from a picture.
• Sensor: a temperature sensor in the assembly, matched to your controller. Type J or K, Ni120, PT100 or PT1000, agreed on the drawing.
• End fittings: a metal fitting at each end – on the photo hoses a silver hex nut at one end and a plain silver collar at the other. Thread standard and size are specified per end. The electrical lead exits near one end, as the black wire in the photo shows.

Temperature and pressure notes

230 °C (446 °F) is the maximum heat resistance of this product; the catalog marks higher temperatures as custom, on request.

Pressure is given per size in the table above, from 173 bar working at 1/4" down to 75 bar at 1". These are the hose ratings printed for the T-STD rows. The per-size minimum bend radii run from 30 mm at 1/4" to 300 mm at 1".

Keep the ambient inside −40 to +55 °C (−40 to 131 °F) at 85 % relative humidity or less and 86–106 kPa, and keep the surroundings free of gases that corrode metal or damage insulation, of conductive media and of severe mould; anything outside that is a custom build. Do not twist the hose laterally during or after installation.

Applications

The catalog application is glass production lines, where the operating temperature is high, for conveying inert gas.

It is a low-pressure build with bores from 1/4" to 1". For a higher-pressure connection, or for an application outside glass production, check the other heated families on the Heated Low Pressure Hose page before ordering.

Options and related builds

• Before you specify: the heated hose specification checklist lists the inputs we need for a quotation, in the order we ask for them.
• Gas-sampling sibling: the heated sample line is the gas-side build in the same family, with smaller bores (3/16"–5/16") for flue-gas pretreatment and analyzers.
• Same table, adhesive duty: the hot-melt adhesive hose covers hot-melt and PUR adhesive machines on the same T-STD rows, 1/4"–1".
• Same table, road duty: the crack-sealing machine hose is the road-maintenance build, 1/2"–1", with proprietary inner-tube reinforcement.
• Other heated builds: browse the Heated Low Pressure Hose and Heated High Pressure Hose families.

How to order

A JCH part number carries the main choices, so the fastest way to order is to quote one. The catalog example is JCH-200-16-B-3X220-P2-8-N:

1. 200 – working temperature in °C. 200 means 200 °C.
2. 16 – inner tube bore in mm. 16 means Φ16 mm.
3. Inner tube letter – B is a stainless corrugated tube, TB is PTFE hose with stainless braid, T is a PTFE hose, X is a special material.
4. Supply – 220 means 220 V, 3X220 means three-phase four-wire 220 V.
5. Sensor code – P2 is PT100 two-wire, P3 is PT100 three-wire, K is type K, J is type J, W is no sensor, T is a special sensor.
6. Pressure – working pressure in MPa. 8 means 8 MPa.

If you do not have a part number, send these instead:

1. Bore and length, the number of pieces, and the distance from the supply point to the use point.
2. The gas, and the temperature it has to be at the use point.
3. The setpoint you want to run and the highest ambient the run passes through on the line.
4. Pressure in the line.
5. Supply voltage and the controller or cabinet the hose plugs into.
6. Sensor type and wiring, if the cabinet dictates it, plus the pin table if one exists.
7. End fittings at each end: thread standard, size, angle, with a photo or part number if you have one.
8. The route – how the hose is supported, and the tightest bend on it.

If a drawing exists, send it. We propose the specification against it, you confirm it with the quotation, and production follows the confirmed specification.

Frequently asked questions

What is a glass-line heated hose?

An electrically heated, insulated hose for glass production lines, where the operating temperature is high, used for conveying inert gas. It combines a heated inner hose, a braided heating layer, insulation, an outer sleeve, a metal fitting at each end and an electrical lead.

What temperature does it run at?

Maximum heat resistance is up to 230 °C (446 °F). Higher temperatures are custom on request. Order the setpoint the gas needs at the use point, not the maximum of the hose.

Which bore do I need?

The catalog prints seven for this product, 1/4" through 1". Send the flow and the run length and we will work the bore with you.

How is the heating layer built?

The catalog specifies a heating layer of uniformly braided heating elements, to minimise differences in temperature distribution along the inner wall.

Is it a high-pressure hose?

No. The catalog places it in the high-temperature, low-pressure group. Per-size working and burst pressures are printed in the table above.

Can it be supplied with my fittings and controller?

Yes. Both ends are specified separately on the order – US, British or metric threads, or another type – and made to order. The sensor type is matched to your controller: type J or K, Ni120, PT100 or PT1000, with PID control and SSR or thyristor output on our controllers.

Source: Jingcheng 2025 electrically heated hose catalog, p.9 glass-line hose and p.4 order form and model code, and our published business policies.