The fluid system pressure including surge pressure should not
exceed the rated working pressure of the hose-usually one fourth of
the hose maximum bursting pressure.
Minimum Burst Pressure
Burst pressure are reference value during in-hose destructive
tests, which are used to determine the strength of the hose and to
establish design safety factors.
Almost all fluid systems develop pressure surges which may exceed
relief value settings. Exposing the hose to surge pressure above
the rated working pressure will shorten hose life and must be
considered in selecting the proper hose. A surge which may not be
indicated on many commonly used pressure gauges, can be measured
using specialized electronic equipment. The safety factor in
systems where severe pressure surges occur can be increased by
selecting the hose with a higher rated working pressure.
Hose should not be exposed to internal or external temperatures
exceeding the resommended limits, as high heat conditions can cause
and adverse effect on the hose by degrading the Elastomer and
reducing the fitting retention. Continuous use at near maximum
temperatures can also cause hose damage whilst continuous use at
maximum temeperatures together with maximum pressure should be
The hose assembly (tube, cover, reinforcement and coupling) must be
The hose size must be capable of handling the required flow volume.
Using the smaller than required diameter of hose for a given volume
of flow would result in excessive fluid turbulence, pressuredrop,
heat generation and tube damage.
Hose Length and Routing
Select the correct length of hose taking into account vibrations,
flexing and hose assembly routing. Use Clamp, bends, adapters,
protective sleeves to protect and guide hose to minimize risk of
damage wherever required to prevent excessive flexing, pulling,
kinking, whipping, and contact to corrosives.
Minimum Bend Radius
Do not bend or flex hose beyond the specified parameter as this
would put excessive stress on the reinforcement and severly reduce
the ability of the hose to withstand the pressure.
Hose Assembly Inspection
All hose assemblies in service should be frequently checked for
leakage, kinking, corrosion, abrasion or any other signs of wear
and damage. Any hose assembly worn or damaged must be removed from
service and replaced immediately.
Hydraulic hoses are more resistant to certain degradation, eg.,
Ultravioletlight, Ozone and many hydraulic fluids. Nevertheless due
regards must be given to the working environment and the selection
of hose best suited to operating conditions.
Improper selection, installation or maintance of hose may result in
premature failures, property damage or bodily injury.
Q1. Why to choose Empire International Trade Co,. Ltd?
With over 30 years' manufacturing experience, we have been one of
the top ten rubber hose manufacturers.
Our factory has a production line with annual production of 10
million nominal meters and 320 sets of manufacturing and processing
machine and advanced testing devices.
Yes, since we focus on supplying our rubber hose to wholesalers and
distributors to develop our B2B business.We will provide the most
competitive price and best service to our wholesale customers. And
extra discounts will be given, if the order quantity is up to our
Q2. What's the advantages of your products?
Our products have been certified by API and ISO quality management
With high quality and competitive price, our products exported far
to Middle east area,South Korea, Europe,South Africa and other
countries and won a good reputation from our customers.
Q3. Can you produce product with my own brand?
Yes, we have been offering OEM services since the beginning of our
factory was built, so we got rich experience in this service.
Q4. Can the products be repaired or replaced if they are found
If the products were found defective as a result of production, we
provide free repair, replacement and refunding for these products.
Q5. Do you have a special price and service for wholesale?
< Free samples and factory visit is warmly welcomed.
< Free technical supports in installation and debugging process.
< Free repair, replacement and refunding for all products found defective as a result of production.
< Our products in strictly accordance with terms and technical
requirements in related contracts.
< Our products are sure to deliver on time to ensure
satisfaction of our users.
< 24 hours services and any question related to our products and company will be
replied in 1 hour.