Special Equipment Heated PTFE Hose Pressure Chart from 113 Bar to 50 Bar for Viscous Fluid Lines

JINGCHENG Special Equipment Connection Hose is an electrically heated hose with a Daikin PTFE inner tube and 304 stainless steel pressure wire, heat resistant up to 230°C, with working pressure up to 40 MPa or higher on custom builds. This page walks through the special-equipment heated hose catalog table row by row: how working pressure falls from 113 bar at 5/16" to 50 bar at 1-1/2", what the 230°C and 40 MPa custom figures mean, and how to pick a size before you order.

Two Failure Modes on Special Equipment Lines

Special equipment that moves hot, pressurized fluid between a pump, melter or reactor and the point of use usually fails in one of two ways. Either the medium cools in the transfer line — resins, fats, oils and other viscous fluids thicken or solidify, and delivery becomes unstable — or the hose cannot hold system pressure once it is at temperature, and the line leaks or bursts. A poorly insulated hot line also wastes energy and raises surface temperature around the machine. JINGCHENG's special-equipment connection hose is an electrically heated, high-pressure PTFE hose designed to remove both risks at once.

Construction That Stands Behind the Table

The medium contacts a Daikin PTFE (Teflon) inner tube from Japan, which is chemically inert, non-stick and suited to high-temperature duty. A 304 stainless steel pressure wire layer provides the working and burst pressure. Uniformly braided heating elements spread heat around and along the bore so inner-wall temperature differences stay small. Insulation is chosen with the outer surface temperature in mind, keeping heat in the fluid. A built-in sensor (Type J or Type K thermocouple, Ni120, PT100 or PT1000) reports hose temperature to the controller. Heat resistance is up to 230°C (higher on request). Working pressure can be built up to 40 MPa or higher as a custom design — that custom figure is not a substitute for reading the size row you actually need.

How to Read the Catalog Size and Pressure Table

The catalog table for this hose (T-SI) lists eight standard inner diameters from 5/16" to 1-1/2". Read it in this order:

• Pick the inner diameter for flow, then stay on that row. Do not apply the 5/16" rating to a 1" or 1-1/2" hose.

• Working pressure falls as bore grows: 113 bar (1631 psi) at 5/16", 110 bar at 3/8", 88 bar at 1/2", 70 bar at 5/8", 65 bar at 3/4", 57.5 bar at 1", 52.5 bar at 1-1/4" and 50 bar (725 psi) at 1-1/2". Size on working pressure, including pump or start-up peaks.

• Burst pressure on each row is about four times working pressure (for example 450 / 113 bar at 5/16" and 200 / 50 bar at 1-1/2"). Use burst as a design margin, not as a working target.

• Minimum bend radius grows from 15 mm at 5/16" to 20, 25, 30, 60, 85, 155 and 200 mm at the larger sizes. Plan the route before you freeze the length.

• Outer diameter (mm ±0.2) is listed so glands, clamps and insulation clearances can be checked: 13.3, 15.5, 19, 22.7, 27, 34, 43 and 49.5 mm.

If the required pressure sits above the row you need, request a custom high-pressure build (up to 40 MPa or higher) rather than selecting a smaller ID only to chase a higher table value.

Data source: JINGCHENG 2025 Electrically Heated Hose Catalog. Heat resistance up to 230°C; higher temperature and pressure available as custom builds. Confirm the rating at your operating temperature with our engineers when ordering.

What the 230°C and 40 MPa Figures Mean

230°C is the standard heat-resistance rating of this hose; higher temperature is available on request, and the rating at your operating temperature should be confirmed when you order. 40 MPa or higher is a custom-build capability, not the working pressure of every size in the table. The table values above (50–113 bar, or 5.0–11.3 MPa) are the published ratings for the eight standard sizes; a 40 MPa assembly is specified separately when the process needs it.

Catalog Uses

Typical duties are hot-fluid connections on special machinery (pumps, melters, tanks and dispensing heads); viscous media lines that must not solidify or thicken; insulated hot-fluid conveying between process units; and custom connection hoses for domestic and imported special equipment, built to the equipment's original parameters.

Selecting Voltage, Sensor and Ends

Every JINGCHENG electrically heated hose is built to order. The catalog order form covers supply voltage (380 Vac, 220 Vac, 110 Vac, 12 Vdc or other); sensor type; length (3 m, 4.5 m, 5 m, 6 m, 10 m or other); inner diameter (Φ8, Φ12, Φ16, Φ19, Φ25 mm or other); working pressure options of 4 MPa, 10 MPa, 20 MPa, 35 MPa or other; heating power (110, 150, 170 or 200 W/m, or other); US, British or metric threads; and the pin layout at each end.

A model code such as JCH-200-16-B-3X220-P2-8 is read as 200°C working temperature, Φ16 mm bore, inner-tube type B (B = stainless steel corrugated tube, TB = PTFE hose with stainless steel braid, T = PTFE hose, X = special material), 3X220 supply, P2 = PT100 two-wire, and 8 MPa working pressure.

• Give the fluid set point and the maximum hose temperature (standard up to 230°C).

• State continuous and peak pressure; above the table row, ask for a custom build.

• Choose ID from 5/16" to 1-1/2" and the length between connection points.

• Specify voltage, watts per meter, sensor type, thread standard and connector pin layout.

Send equipment data for a specification and quotation. Confirm the rating at your operating temperature with JINGCHENG engineers when you order.