Mining Hose Technical Data Sheet: 10 Specifications Buyers Should Check

A mining hose technical data sheet contains the information buyers need to compare products, confirm application suitability, and avoid costly specification errors. However, many buyers focus only on nominal diameter and working pressure. These two values alone cannot determine whether a hose will perform safely and reliably in a mining environment.

A complete evaluation should also consider the actual inside diameter, outside diameter, liner and reinforcement construction, burst pressure, vacuum rating, temperature range, minimum bend radius, end connections, length, weight, and dimensional tolerances.

It is also important to determine whether the data sheet describes the hose only or a complete hose assembly with couplings and fittings. The final working capability of an assembly is limited by its lowest-rated component.

This guide explains the 10 specifications buyers should check when reviewing a mining hose technical data sheet. For general background, see mining hose introduction. For broader application-level selection, see How to Choose the Right Mining Hose Assembly.

Key Takeaways

• A mining hose data sheet describes a specific hose construction under stated conditions.

• Nominal hose size may not be the same as the finished inside diameter.

• Working pressure and burst pressure are different ratings and should never be used interchangeably.

• A pressure-rated hose is not automatically suitable for vacuum or suction service.

• Temperature can affect pressure capability, flexibility, liner performance, and service life.

• Minimum bend radius must be considered during installation and operation.

• Hose dimensions, couplings, length, and tolerances must be coordinated as one assembly.

• Buyers should compare data sheets using the same units, operating conditions, and rating definitions.

• A technical data sheet should be supported by product identification, test information, and revision control.

• The safest purchasing decision is based on the complete operating profile rather than one attractive specification.

What Is a Mining Hose Technical Data Sheet?

A mining hose technical data sheet is a controlled document that summarizes the construction, dimensions, performance ratings, and application limits of a particular hose model or hose assembly.

Depending on the manufacturer, a data sheet may include:

The information should be read as a complete system. A hose with excellent abrasion resistance may still be unsuitable if its pressure rating, vacuum resistance, temperature range, or coupling design does not match the application.

Service, Conveyed Material, and Duty Cycle

The first specification to confirm is the intended service. A mining hose may be designed for slurry, tailings, water transfer, dewatering, compressed air, chemicals, fuel, or another application.

The data sheet should be reviewed together with the actual operating conditions, including:

• Conveyed medium

• Solids concentration

• Particle size and hardness

• Chemical composition and pH

• Operating pressure

• Vacuum or suction conditions

• Temperature

• Flow frequency and duty cycle

• Stationary or dynamic movement

• Underground or surface installation

• External abrasion, UV, oil, or weather exposure

A hose designed for water transfer should not automatically be used for abrasive slurry. Similarly, a hose suitable for discharge service may not be suitable for suction service.

Buyers should ask the supplier to confirm the intended application in writing rather than relying only on a general product name such as “mining hose” or “heavy-duty hose.”

Nominal Size and Actual Inside Diameter

Nominal size is usually expressed as DN, inch size, or another standardized designation. It provides a convenient reference, but it may not represent the exact finished bore of the hose.

The actual inside diameter affects:

• Flow velocity

• Pressure loss

• Pump requirements

• Solids transport

• Settling risk

• Coupling and fitting compatibility

• Connection alignment

A hose listed as a nominal 100 mm or 4-inch hose may have a different finished inside diameter depending on the liner thickness, reinforcement, manufacturing tolerance, and end construction.

The data sheet should therefore provide, or the supplier should confirm:

• Nominal hose size

• Actual inside diameter

• Inside diameter tolerance

• Finished bore at the hose ends

• Whether the dimension applies to the bare hose or completed assembly

This is especially important when replacing an existing hose. A small change in actual bore can affect flow performance and may create problems when connecting to pumps, pipes, valves, or couplings.

Do not select a replacement only because the nominal size appears to be the same. Compare the actual ID and the connection dimensions.

Outside Diameter, Wall Thickness, and Liner Thickness

The outside diameter is important for installation clearance, support spacing, clamps, protective sleeves, rollers, and coupling selection.

The technical data sheet should distinguish between:

• Outside diameter

• Total wall thickness

• Liner thickness

• Reinforcement thickness

• Outer cover thickness

A thicker liner may provide additional wear allowance in slurry service, but it also reduces the available internal bore and can increase hose weight. A thicker outer cover may improve external abrasion resistance without increasing internal wear life.

Buyers should confirm:

• Finished outside diameter

• Outside diameter tolerance

• Liner thickness

• Cover thickness

• Whether the dimensions are measured on an unpressurized hose

• Whether the dimensions vary by hose length or end configuration

This information is necessary when the hose must pass through a restricted opening or fit inside a clamp, guide, support, or protective sleeve.

For long mining hose runs, the hose weight and outside diameter can also affect handling equipment, hanger design, and installation labor.

Liner, Reinforcement, and Outer Cover Construction

The material construction explains why a hose has a particular pressure, abrasion, flexibility, or environmental rating.

A typical mining hose may include three primary layers:

Inner Liner

The liner contacts the conveyed material. It must be compatible with:

• Water or slurry

• Abrasive particles

• Chemicals

• Oils or hydrocarbons

• Temperature

• Cleaning agents

The liner may be made from natural rubber, synthetic rubber, polyurethane, polyethylene, or another application-specific material.

Reinforcement

The reinforcement supports pressure, vacuum, tensile loads, and movement. Common reinforcement types include:

• Textile plies

• Synthetic cords

• Steel wire

• Steel helix

• Embedded rings

• Spiral reinforcement

The reinforcement design also affects flexibility, weight, crush resistance, and vacuum capability.

Outer Cover

The cover protects the hose from the external environment. Buyers may need to check resistance to:

• External abrasion

• Rock impact

• Oil

• UV radiation

• Ozone

• Weathering

• Heat

• Flame or static-related hazards

A data sheet that says only “heavy-duty rubber” does not provide enough information for a technical comparison. Ask for the actual liner, reinforcement, cover, and conductivity details.

For more information about liner selection in abrasive slurry service, see How to Choose the Right Liner for Abrasive Materials and confirm the exact product URL before publishing the internal link.

Working Pressure

Working pressure is the maximum pressure at which the hose is intended to operate under the manufacturer’s specified conditions.

The data sheet may use terms such as:

• Working pressure

• Maximum working pressure

• Maximum allowable working pressure

• Rated pressure

• Service pressure

• WP or MWP

Buyers should confirm what the stated value includes. Important questions include:

• Is the rating for static or dynamic service?

• Does it include pressure pulsation?

• Does it account for pump startup and shutdown?

• Is it valid at the stated temperature?

• Does it apply to the hose or the complete assembly?

• Are there restrictions on length, movement, or connection type?

Normal gauge pressure is not always the highest pressure experienced by the hose. Pump starts, valve closures, water hammer, pressure pulsation, and sudden flow changes can produce short-duration surges.

The selected working pressure should therefore accommodate the complete operating profile, not only the average pressure shown during normal operation.

The hose, coupling, flange, gasket, clamp, adapter, and connected equipment must all be suitable for the required working pressure. The assembly is limited by its lowest-rated component.

Burst Pressure and Design Factor

Burst pressure is the pressure at which a hose may fail during a controlled test. It is not the pressure at which the hose should be operated.

A technical data sheet may list:

• Minimum burst pressure

• Burst pressure

• Design factor

• Safety factor

• Test pressure

• Proof pressure

These values have different meanings. Proof or test pressure may describe a controlled inspection procedure. Burst pressure describes a failure threshold. Working pressure is the normal operating limit specified by the manufacturer.

Buyers should not calculate an operating pressure simply by dividing burst pressure by a chosen number. The correct working pressure also depends on:

• Pressure cycling

• Temperature

• Hose age

• Chemical exposure

• Flexing

• Vibration

• Connection design

• Manufacturing tolerances

• Installation conditions

If a data sheet lists a burst pressure but does not clearly state the working pressure, request clarification before placing an order.

When comparing suppliers, make sure the burst ratings are based on the same test conditions. A burst value measured at room temperature on a straight, new hose may not represent the performance of an aged, flexing assembly installed in a mine.

Vacuum Rating and Collapse Resistance

Vacuum rating is essential when a mining hose is used for:

• Pump suction

• Dewatering

• Dredging

• Drainage

• Slurry intake

• Tank unloading

• Negative-pressure service

• Applications exposed to external soil or water pressure

A hose may be strong in positive-pressure service but collapse when exposed to vacuum. The reinforcement, helix, wall structure, and hose geometry determine its resistance to collapse.

Data sheets may express vacuum performance in:

• Bar

• kPa

• Percentage of vacuum

• mmHg

• Negative pressure

The buyer should confirm whether the listed value refers to vacuum pressure, absolute pressure, continuous service, or a short-duration test.

Also check whether the vacuum rating changes with:

• Hose temperature

• Bend radius

• Hose length

• Unsupported span

• Flow conditions

• External pressure

• Repeated suction cycles

A discharge hose should never be assumed to be suitable for suction service. If the application involves a pump inlet or negative pressure, request a specific vacuum or suction rating.

Temperature Range and Pressure Derating

The temperature range indicates the conditions under which the hose materials are expected to remain functional. However, buyers must determine whether the temperature refers to:

• Conveyed material

• Ambient air

• Hose surface

• Continuous operation

• Short-term exposure

• Cleaning or flushing conditions

High temperature can reduce pressure capability, accelerate liner wear, soften or harden rubber compounds, and affect coupling seals. Low temperature can reduce flexibility and increase the risk of cracking during movement or installation.

A data sheet may state a temperature range such as “-30°C to +80°C,” but this does not necessarily mean that the hose can operate at maximum working pressure across the entire range.

Ask the supplier for:

• Continuous operating temperature

• Maximum peak temperature

• Minimum installation temperature

• Pressure derating information

• Chemical compatibility at the actual temperature

• Temperature limits for gaskets and couplings

Some manufacturer data tables are valid only at a reference temperature, such as 20°C. The notes below the table should always be reviewed before comparing pressure values.

Hot slurry, heated water, steam cleaning, and large daily temperature changes may require a different hose construction from ordinary ambient-temperature service.

Minimum Bend Radius and Flexibility

The minimum bend radius is the smallest radius at which the hose can be bent under specified conditions without unacceptable damage or loss of service life.

A hose may have separate values for:

• Static bend radius

• Dynamic bend radius

• Installation bend radius

• Operating bend radius

• Reverse-bending capability

Buyers should confirm how the radius is measured and whether it is based on the centerline, inside surface, or another reference.

Installing a hose below its minimum bend radius can cause:

• Kinking

• Flattening

• Restricted flow

• Liner separation

• Reinforcement fatigue

• Cover cracking

• Coupling stress

• Premature failure near the hose ends

The hose should not be used to force misaligned pipes or equipment into position. It should also be protected from twisting. Movement should occur through the intended bend, not through torsion at the coupling.

The installation layout should be checked for:

• Tight bends

• Repeated flexing

• Axial movement

• Lateral movement

• Vibration

• Unsupported weight

• Contact with sharp edges

• Crushing by vehicles or equipment

If the hose will flex continuously or move with mobile equipment, request dynamic service data rather than relying on a static minimum bend radius.

End Connections, Overall Length, Weight, and Tolerances

These details are sometimes listed in separate documents, but they should be reviewed together before issuing a purchase order.

End Connections

Confirm:

• Flange or coupling type

• Connection standard

• Nominal size

• Pressure class

• Flange face

• Bolt-hole pattern

• Thread type

• Material

• Swivel or fixed design

• Connection orientation

• Attachment method

A hose with the correct body specifications can still be unusable if the end connection does not match the equipment.

For complete hose assemblies, the coupling should be approved for the specific hose construction. Do not replace a specified coupling with a visually similar component without confirmation.

Length

Clarify whether the stated length means:

• Bare hose cut length

• Overall assembly length

• Face-to-face length

• Length including couplings

• Length excluding flanges

• Length measured before or after fitting

Length tolerance is important when several hoses are installed in parallel or when the hose must fit a fixed route.

Weight

Weight may be stated as kilograms per meter or total assembly weight. It affects:

• Manual handling

• Crane or lifting requirements

• Support spacing

• Transportation cost

• Installation labor

• Flange and hanger loads

A ceramic-lined or heavily reinforced hose may be much heavier than a conventional rubber hose of the same nominal size.

Tolerances and Traceability

Ask the supplier to confirm:

• ID tolerance

• OD tolerance

• Length tolerance

• Pressure rating tolerance or test basis

• Part number

• Manufacturing date

• Batch or lot number

• Data sheet revision

• Inspection or test certificate

These details help prevent substitutions and make future replacement easier.

Hose Data Sheet vs. Complete Assembly Data Sheet

Buyers should distinguish between a hose data sheet and an assembly data sheet.

If the purchase includes a complete hose assembly, request the hose data sheet and the assembly drawing together. A product brochure alone may not define the final connection, length, or test condition.

How to Compare Two Mining Hose Technical Data Sheets

Use the following process when comparing quotations from different suppliers.

Step 1: Confirm the Same Application

Make sure both products are being evaluated for the same medium, temperature, pressure, movement, and installation environment.

A general-purpose water hose and an abrasive slurry hose should not be compared only by price and nominal diameter.

Step 2: Normalize the Units

Check whether each supplier uses:

• Millimeters or inches

• Bar, MPa, psi, or kPa

• Celsius or Fahrenheit

• Kilograms per meter or pounds per foot

• Vacuum pressure or percentage vacuum

Convert the units before comparing values.

Step 3: Check the Rating Conditions

Look for notes such as:

• Data valid at 20°C

• Static application only

• Maximum pressure at a specific temperature

• Rating applies to hose only

• Vacuum rating applies to straight hose

• Special restrictions for dynamic service

A larger number is not necessarily a better specification if it was measured under different conditions.

Step 4: Compare the Complete Assembly

Confirm that the hose, coupling, gasket, flange, clamp, and connected equipment have compatible ratings.

The hose body may have a higher pressure rating than the assembled connection. In this case, the assembly must be treated according to the lower rating.

Step 5: Request Evidence for Critical Applications

For high-pressure, vacuum, chemical, abrasive, or continuously moving service, request:

• Product test data

• Pressure test certificate

• Material information

• Assembly drawing

• Previous application references

• Inspection and replacement guidance

A technical data sheet should support the purchasing decision, but it cannot replace application-specific engineering confirmation.

Information Buyers Should Send for a Mining Hose Quotation

A supplier can provide a more accurate recommendation when the request includes:

• Conveyed material

• Particle size and solids concentration

• Chemical or oil exposure

• Nominal and required actual bore

• Normal working pressure

• Pressure surges or pulsation

• Vacuum or suction requirement

• Continuous and peak temperature

• Hose length

• Static or dynamic service

• Minimum available bend radius

• External abrasion or crushing risk

• Required coupling or flange standard

• Installation orientation

• Quantity and replacement schedule

• Existing hose photographs or failure records

Providing this information reduces the risk of receiving a technically incomplete quotation.

Common Buyer Mistakes

A Practical 10-Point Buyer Checklist

Before approving a mining hose purchase, confirm that the data sheet clearly states:

1. Intended service and conveyed material

2. Nominal size and actual inside diameter

3. Outside diameter and dimensional tolerances

4. Liner, reinforcement, and cover construction

5. Maximum working pressure

6. Minimum burst pressure and design basis

7. Vacuum or suction rating, if required

8. Continuous and peak temperature limits

9. Minimum bend radius and movement capability

10. End connections, length, weight, tolerances, and traceability

If any critical item is missing, request clarification before comparing the quotation with other products.

Conclusion

A mining hose technical data sheet should be treated as a purchasing and engineering document, not merely a product description. The most important values are connected: the actual bore affects flow, the construction affects pressure and vacuum performance, temperature can change pressure capability, and the bend radius affects service life.

Buyers should compare working pressure, burst pressure, vacuum rating, temperature range, dimensions, materials, flexibility, and assembly details under the same conditions. They should also confirm whether the data applies to the hose body or the complete hose assembly.

By checking these 10 specifications before ordering, mining operators can reduce compatibility problems, improve installation accuracy, and make replacement planning more predictable.

For application-specific requirements, explore ZYfire's mining hose product range and provide the complete operating information when requesting a quotation.

FAQ

What information should a mining hose technical data sheet include?

It should normally include the product model, dimensions, materials, working pressure, burst pressure, vacuum rating, temperature range, minimum bend radius, weight, length, and available connection details. The exact information varies by manufacturer and hose type.

What is the difference between working pressure and burst pressure?

Working pressure is the manufacturer’s stated maximum operating pressure. Burst pressure is the pressure at which the hose may fail during a controlled test. Burst pressure must not be used as the normal operating limit.

Is nominal hose size the same as actual inside diameter?

Not always. Nominal size is a reference designation, while actual inside diameter depends on the hose construction and manufacturing tolerance. Always confirm the finished bore before ordering.

Does every mining hose need a vacuum rating?

No. Vacuum rating is especially important for suction, dewatering, dredging, drainage, and pump inlet applications. A hose used only for positive-pressure discharge may not require the same vacuum capability.

Can a hose operate at maximum working pressure and maximum temperature at the same time?

Not necessarily. Some products require pressure derating at elevated temperatures. Buyers should request confirmation that the pressure and temperature limits can be used together.

Why is minimum bend radius important?

Bending below the specified minimum radius can cause kinking, liner damage, reinforcement fatigue, restricted flow, and stress near the coupling. Dynamic applications may require a larger or separately specified bend radius.

Should I request a data sheet for the couplings as well?

Yes. If purchasing a complete hose assembly, the hose data sheet should be reviewed together with the coupling specification, assembly drawing, and pressure test documentation.

What should I do if two suppliers provide different pressure ratings?

First check whether the hoses have the same construction, size, temperature basis, pressure definition, and assembly configuration. A higher rating is meaningful only when the test conditions and application are comparable.