Difference between working pressure and burst pressure of silicone hoses

When looking at any type of hose you will come across pressure data. You may have seen the terms ‘working pressure’ and ‘burst pressure’ amongst these. So what are they and how do they differ?

The working pressure means the pressure of the pipe fittings or flanges in the working conditions range, normally called pressure range.

The burst pressure is the maximum pressure that can be applied to the pipeline components without physical damage. Burst pressure can be defined as the maximum pressure this pipe fitting can withstand before breaking.When the pressure exceeds the burst pressure,the pipe will explode.

So what are the burst pressures of silicone hoses?

We have a technical area on our website which houses tables showing the burst pressure data for all different sizes of hose. You can find it here. https://www.viperperformance.co.uk/page-burst-pressure-thickness.html

Straight Reducing Diameter Silicone Hoses starting at just £4.99

straight reducing silicone hoseWe have the worlds largest range of straight reducers with 70 size options currently available and new sizes being added all the time. 

These reducers suit just about any application and industry with the smallest diameters suitable for water connections and the bigger sizes which are great for intercoolers, air intakes or other industries just as marine.

We build all hoses with minimum 3 layers of reinforcement plus 1mm inner liner for added protection. These are the highest quality hand made hoses, lined and multi-layered with quality fabric reinforcements.

Most straight reducers are 100mm long. All diameters are internal, it is imperative you choose the correct size for your application.

See the full range of straight reducing diameters here.

Large range of Weld on Bosses

We have a variety of weld on bosses available which are manufactured from machined aluminium and polished finish. Our specially machined flared seat will give you plenty of space for a clean weld and tidy job. These bosses are ideal for adding a breather into a pipe or any connections to fuel and oil tanks. All available in several sizes.

We have 3 types of Aluminium weld on bosses available to order from our website. These include:

Barded end – for push on hoses
Available in a number of Outer Diameters, and CNC machined “fish tail / barbed ” design will secure any hose very well onto the take off. Buy Now.

Male JIC
Quality CNC machined JIC aluminium weld on boses / bungs in 6063 aluminium, ideal for TIG welding onto aluminium pipes, tanks, etc.. Buy Now

Female weld on boss
These weld-on-bosses have a female NPT thread. The broad flat seat will give you plenty of space for a clean weld. Buy Now

See the full range of Boses here.

Large range of handy specialist tools

specialist toolsWe have a range of very handy tools to help you with making your intercooler pipes, coolant or intake systems. These include Tube roll beading tools, pipe flaring tools or tube straighteners for your aluminium hard lines.

These tools are very well made from quality materials and built to last. Due to their craftsmanship they are ideal for the workshop, garage or car building enthusiasts.

Hose end fitting tool

Our hose end fitting tool is an absolute god send when it comes to assembling and crimping AN hose end fittings. This tool does a great job with ease in minutes. It is supplied with a number of dies / sockets to crimp and assemble braided fuel and oil lines.

AN Spanners

Our Aluminium anodised AN/JIC wrenches are specially designed to fit the swivel hose fitting nuts and for crimp style hose end fittings used for braided fuel / oil hoses. The spanners and  wrenches are sold in sets offering excellent value for money, or sold as a single piece wrench.

Tube Straightening tool

This tube straightening tool has a vice mounted billet aluminium construction designed to heavy duty and years of service. This tube straightener will easily straighten all your fuel system hard lines and brake lines. Suitable for copper or aluminium tubing.

Tube Flaring Tool

We also do a heavy duty professional tube flare devise, designed to flare tubes to a 45° flare to apply suitable fuel hose fittings onto the tube / hard pipe.

Find all our specialist tools here.

Subaru Water hoses Kit

Subaru hosesThis kit is made up of 15 pieces and includes every single ancillary hose you might need for your Subaru. These hoses will fit the 2001-02 WRX/STI and also 2001-2004 Blob Eye Versions

Every single hose is individually moulded to match the vehicle perfectly. A lot of attention to detail has been paid to getting these kits just right. Every hose is built with an inner liner and 3 layers of reinforcement. Viper Performance Branded so you benefit from our lifetime warranty.

This kit is £166.65 ex VAT. Buy yours today here

Silicone hoses for high temperatures

reinforcement fabricsSilicone hoses are not all the same and ensuring that the hose is of high quality will determine its effectiveness and life span. All silicone hoses have an inner liner and a minimum of 3 layers of fabric reinforcement.

Our standard polyester reinforcements are perfect for any applications where temperature will not exceed 170°C. There are some applications which will require hoses to withstand high temperatures. In this case we offer different types of reinforcements.

Polyester reinforcements 170°C

Our standard fabric is made from 100% polyester which is specially designed for pressure, strength and flexibility. This reinforcement suits most engine applications. Working temperatures are from -50℃ to +170℃, peaking at +180℃ Polyester reinforced hoses are however NOT suitable for carrying oil or fuel.

Polyester is Ideal for:

  • Water
  • Air
  • Air intakes
  • Coolant
  • Small amounts of oil mist

Nomex reinforcements 220°C

When you require a higher temperature rating we have another fabric option called Nomex. The pattern of this fabric is different, we use a knitted Nomex fabric. Our Nomex reinforced hoses will withstand high temperatures up to 220°C making them ideal for Turbo application, hot air, steam, water or environments where other hoses fail.

Nomex is Ideal for:

  • Water
  • Air
  • Coolants
  • Turbo boost
  • High temperatures
  • Higher pressures
  • Small amounts of oil mist.


For hoses which will be in contact with oil we have another liner option called Fluro Liner. This is a highly specialised product which is Ideal for contact with Oils / Oil mists and fuel Filler hoses. The Working temperatures of these hoses is from -50℃ to +170℃

Fluro ideal for:

  • Water
  • Air
  • OIL in ASTM 1 and 3 oil mists
  • transfer of fuel (fuel filler hose)  (not suitable for high octane fuels)

To select one of the above options when buying your hoses simply check the correct build material at the top of the page before adding your hose to the cart. View all silicone hoses here.

fabric options

The electric future for agricultural equipment

electric tractorCar manufacturers are making great strides in electric drive technology and the death of diesel and petrol engines is on the horizon. This revolution is happening for larger vehicles too. For some types of farm vehicles, like loaders and mixer-feeder wagons, electric drive is already here. Soon there will be tractors, with three companies planning to sell electric models in the next two years.

According to Professor Peter Pickel, deputy director of John Deere’s European Technology Centre, the electrification of tractors offers three key advantages.

First is increased efficiency. A diesel engine achieves about 35% efficiency in converting thermal to mechanical energy. Compare that with the overall efficiency of charging batteries at 80%, while electric motors have an efficiency of 90%.

Second, he says electrical power offers greater controllability and opportunities for automation. One example is precision seeding. The Exact Emerge system from John Deere for single seed placing uses electric motors to place seeds within 1cm accuracy.

Professor Pickel sees it as a complete system where the battery is removable and is part of the farm’s electricity grid. This would bring battery utilisation up to 96%.

So with these benefits, German manufacturer Fendt and India-based firm Escorts have just launched electric models. However, both are at the lower end of the horsepower range, with Fendt’s e100 Vario being the more powerful, offering 67hp.

How to measure silicone hose diameter

Our silicone hoses are sold by internal diameter (ID) not external diameter. We measure this internal diameter with measuring calipers from internal edge to internal edge.

measuring silicone hoses

In order to select the correct hose, measure the outer diameter (OD) of the pipe you want to connect it to. This will be the same as the Internal Diameter of the silicone hose. For example if the outer diameter of the pipe is 76mm then you need to choose a silicone hose with a 76mm internal diameter (ID).

Internal and Outer diamenter

Take a look at our silicone hose range here.

Y piece silicone hose connector

y piece hoseThe Y piece silicone hose is ideal for making any split connections. There is a main body, which is the larger of the diameter, reducing and splitting down to two equal branches.

Beautifully moulded and made by hand there is no “flashing” of silicone inside the join, for am excellent air / water flow.

We are proud to be the ONLY manufacturer currently offering Y shaped silicone hoses. Bringing you a very useful connector otherwise impossible to obtain.

Take a look here: Y piece silicone hose

Straight Hoses 1, 2 4 meters

straight hosesOur straight silicone hoses offer excellent build quality with 3 to 5 ply reinforced construction. We stock hoses from 6mm ID meaning almost every size is catered for, and in stock!

Our small diameter straight lengths are very flexible and achieve a very good bend radius. Diameters from 6 to 19mm are often used for water connection, breathers or heater matrix. The flexibility of our hoses offers good piping solutions for many applications.

Bigger diameters offer good value for money as they allow you to cut to length or use as they are. Ideal for coolant, intercooler or air intakes.

We have 1, 2 and 4 meter options available. The longer 2 and 4 meter lengths are fantastic for a continuous run with no joins.

1 meter straight hose

2 meter straight hose

4 meter straight hose