ygienic Temperature-Holding Hose for Food Filling and Dosing Lines

Introduction

Food materials may leave a storage tank or mixing vessel at the correct temperature but gradually cool as they move through a flexible connecting hose.

This temperature loss can affect viscosity, flow rate and filling accuracy, particularly when processing chocolate, syrup, edible oil, sauces, creams, fillings and other temperature-sensitive products.

A hygienic temperature-holding food transfer hose provides active heating and insulation between different sections of food-processing equipment.

Unlike an ordinary insulated hose, the heated assembly supplies controlled thermal energy along the transfer route, helping maintain more consistent material conditions before the product reaches a dosing valve, filling head or processing unit.

The Unheated Hose Can Become a Cold Section

Many food-processing systems already include heated tanks, pumps and filling equipment. However, the flexible hose between these machines may receive less attention.

When the hose loses heat, the transferred product may become thicker before reaching the next process stage.

This can cause:

• Reduced material flow

• Higher pump load

• Unstable filling volume

• Delayed dispensing response

• Material accumulation

• Localized solidification

• Uneven coating or dosing

• Longer startup time

• More frequent cleaning

• Production interruptions

Maintaining the required temperature through the complete material path helps reduce these process variations.

Customized Food-Contact Inner Tube

The product uses a customized food-grade material-contact inner tube.

The inner-tube structure should be selected according to:

• Food-material composition

• Oil or fat content

• Sugar content

• Acidity

• Working temperature

• Material viscosity

• Cleaning method

• Working pressure

• Required flow rate

• Equipment connection

The complete assembly—including the inner tube, fittings and other product-contact components—should be confirmed according to the customer’s food-processing requirements.

Uniform Heating Around the Material Path

The heating elements are distributed along the hose to reduce temperature differences between different sections.

Uniform heating helps minimize localized cold zones that may otherwise cause material thickening or buildup.

This supports:

• More stable product viscosity

• Predictable pump response

• Consistent filling and dosing

• Reduced blockage risk

• Faster production startup

• Improved process repeatability

The purpose of the hose is to maintain the selected process temperature, not to overheat the transferred product.

High-Efficiency Thermal Insulation

The heating layer is surrounded by insulation material designed to reduce thermal loss.

Insulation becomes especially important when:

• The hose is relatively long

• The production environment is cold

• Material flow is slow

• The equipment frequently stops and restarts

• The food product is highly temperature-sensitive

• The tank and filling equipment are installed far apart

Efficient insulation helps maintain internal temperature while reducing unnecessary heat loss through the hose surface.

Standard Temperature Capability

The standard food transfer hose supports temperatures up to:

100°C

The actual operating temperature should be selected according to:

• Food-product requirements

• Inner-tube material

• Hose length

• Ambient temperature

• Heating power

• Flow rate

• Cleaning procedure

• Equipment control system

Typical Applications

• Chocolate transfer systems

• Syrup delivery equipment

• Sauce filling lines

• Edible-oil conveying

• Bakery filling machinery

• Cream and paste transfer

• Confectionery production

• Heated food dosing systems

• Food coating equipment

• Temperature-sensitive filling machines

• Customized food-processing machinery

• Replacement hoses for imported equipment

Customization Options

Reference Product Data

*The 5/16-inch burst-pressure values shown in the catalog are not equivalent and should be verified before publication.

Final working pressure depends on temperature, fittings, hose length and the complete assembly.

Information Required for Selection

Please provide:

• Food-material name

• Product composition

• Required operating temperature

• Normal working pressure

• Maximum pressure

• Material viscosity

• Required flow rate

• Hose length

• Inner diameter

• Voltage

• Heating power

• Sensor type

• Inlet and outlet fittings

• Electrical connector

• Equipment brand and model

• Cleaning method

• Original hose or technical drawing