What are the advantages of SPIR STAR® ultra-high-pressure thermoplastic hoses?
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- Resistance: Our hoses have a high resistance to chemicals and gases. In addition, the products are UV and seawater resistant.
- Wear: Due to the materials used, wear of the outer cover of our hoses can be significantly reduced.
- Weight: Compared to rubber hose products, the weight of SPIR STAR® thermoplastic ultra-high-pressure hoses is significantly lower.
- Volumetric expansion: Our hoses have a very low volumetric expansion.
- Customized products: We are happy to offer our hoses in various colors and in lengths up to 4,000 m in order to suit your needs.
- Working pressure: We are happy to offer hoses up to 4,000 bar / 58,000 psi working pressure.
Are any of the hose types in your product range certified according to DIN EN ?
Yes, we offer a number of certified hoses in our range.
How can you return deliveries to SPIR STAR?
- Download the Return Delivery Request in the download section under &#;Other&#; and fill in ALL fields.
- Send form to *protected * AND *protected *.
- Returns without a completed form will not be accepted and will be returned at your expense.
Are any of the hose types in your product range certified according to DIN EN ?
Yes, SPIR STAR® offers hose types certified according to this standard.
Can test certificates be issued for every hose assembly?
Yes, each completed hose assembly is pressure tested before shipment. A corresponding test certificate can be issued upon request.
What is the recommended safety factor in waterjet applications?
SPIR STAR® recommends a safety factor of 2.5:1 in relation to DIN EN -2.
Are there accessories that prevent kinking behind the sleeve?
We are happy to offer you a suitable kink protection.
What is the advantage of a hose securing grips?
The hose securing grips prevents the hose from whipping and keeps it in position.
What to pay attention to before using the hose assembly?
Please note:
If you want to learn more, please visit our website HESPER.
- Handle ultra-high-pressure hoses with extreme care. SPIR STAR® ultra-high-pressure hoses are steel-wire reinforced hoses with a thermoplastic inner core and should be treated with the same care as pressure vessels.
- Before using hoses for waterjet cutting applications, refer to the Recommendations for Practical Use of Manually Operated High-Pressure Waterjet Cutting Equipment (WaterJet Technology Association (Water Jet Technology Association [+1/314-241-, www.wjta.org]).
- Inspect the hoses for damage, kinks, or wear before each use.
- Inspect the hose fittings and threads for wear, rust, cracks, and other damage that could make them dangerous projectiles.
- Before using ultra-high-pressure hoses, familiarize yourself with their working and operating pressures.
- Use only clean, filtered water to extend the useful life of the hoses. Do not use water containing sulfur, as sulfur will corrode stainless steel.
- Clean and empty the hoses after use and roll them up. Soap and water are very good for cleaning.
- Always wear protective gloves, goggles and clothing when working with ultra-high-pressure hoses or high-pressure spray guns.
Please avoid:
- Do not use ultra-high-pressure hoses with a damaged outer cover.
- Do not use ultra-high-pressure hoses that have kinks.
- Do not use hoses with blisters in the outer cover.
- Do not fall below the permissible bending radius. Be sure not to exceed the permissible operating pressure of your hose.
- Do not drive over or crush the hose with heavy vehicles.
- Do not use a hose with corroded or leaking connections. Replace it immediately.
- Do not use hoses that have been exposed to chemicals or overheating.
- Avoid contaminated water or water containing sulfur compounds. Tests have shown that hoses fail faster when water from chemical factories or refineries is used.
- Do not bend the hose over scaffolding or pull heavy machinery with it.
- Do not let the hose hang down from high facades.
- Do not apply torque to the hose.
- Do not expect ultra-high-pressure or hydraulic hoses to last forever.
How many pulses does hose type XY achieve in our internal pulse test?
All SPIR STAR® hoses must pass a rigorous qualification test, which includes an impulse test, before being released for sale. We will be happy to provide you with further information here.
Can we issue a CE certificate of conformity (according to the Machinery Directive or Pressure Equipment Directive) for our hose assemblies? Can we attach a CE conformity mark to the hose?
Our ultra-high-pressure hoses do not fall within the scope of the Machinery or Pressure Equipment Directive. For this reason, we cannot issue a CE certificate of conformity or provide the hose with a CE marking.
Can we put a CE conformity mark on the hose?
If the hoses are installed by the customer in a machine for which a CE marking is mandatory, the manufacturer of the machine must ensure that all requirements of the Machinery Directive and the applicable standards are met and affix the appropriate marking.
As most of us know, crimping is the most frequent way to assemble a hydraulic fitting to the hose. But before even selecting a fitting and hose combination, we first need to ask ourselves what the proverbial S.T.A.M.P. is: size, temperature, application, materials/media, and pressure.
After establishing S.T.A.M.P., let&#;s ask ourselves these fundamental questions:
#1 - One- or two-piece hose fittings?
- One-piece hose fittings have a ferrule that is pre-crimped onto the hose tail. The primary advantage is that the collar will not slip out of alignment. One-piece hose fittings are good for basic applications and quick assembly.
- Two-piece fitting ferrules allow greater flexibility in hose selection and connection, including 1SN, 2SN and multi-spiral hoses which permit multiple two-piece fitting and ferrule options to accommodate the specific application. SS 316 two-piece hose fittings are the best selection to ensure corrosion resistance and long service life, as well as for critical and exceptionally high-pressure applications, particularly when there is the possibility of extreme hose vibration and/or pressure surges.
#2 - Are the fittings and hose compatible?
The connection is the weakest link in the hose assembly. First, it&#;s imperative that the fitting and hose have compatible pressure ratings because the working pressure of the system is based on the component with the lowest rated pressure. So, you wouldn&#;t match a low-pressure brass fitting with a 5,000 PSI spiral-wire hydraulic hose. It would be like wrapping two sections of garden hose together with packing tape &#; it&#;s going to burst as soon as you turn the spigot up all the way. Of course, it won&#;t be as dangerous as the hydraulic example.
#3 - To skive or not to skive &#; that is the question!
Skiving is the removal of the outer cover at the end of a hydraulic hose where a fitting will be crimped. The outer rubber of the hose is peeled off to accommodate the fitting for medium pressure applications using a special tool or automatic skiving equipment. This is considered external skiving (or single skive) for the ferrule and fitting to mate correctly. However, many high-pressure applications require the hose ID to be skived along with the outer cover so the hosetail will have a more secure fit.
- One-Piece Hose Fittings
One-piece hose fittings have a ferrule that is pre-crimped onto the hose tail. The advantage (is) being that the collar will not slip out of alignment. This style also ensures the correct ferrule is matched to the correct fitting. One-piece hose fittings are good for basic applications and quick assembly.
The hose is not skived when a one-piece fitting connection is used. It is ready to assemble without requiring the skiving process, and therefore the cover is not removed from the hose.
- Two-Piece Hose Fittings
Higher pressure applications may require internal and external skiving of the hose to ensure a more secure fit of a two-piece fitting, which would typically be made of 316 stainless steel.
Two-piece fittings have a ferrule which allows greater flexibility in hose selection and connection, including 1SN, 2SN and multi-spiral hoses which allow for multiple two-piece fitting and ferrule options to accommodate the specific application. Stainless 316 two-piece hose fittings are the best selection to ensure corrosion resistance and long service life, especially in chemical and offshore applications.
Two-piece hose fittings are used when severe conditions are present near the fitting components and are extremely important for providing a powerful assembly of the fitting and hose. In these high-pressure applications, the hose is skived in the inside and outside (two skive), creating a metal-to-metal connection on both the inside and outside of the hose.
#4 - What fitting material should you select?
Like hoses, fittings are made from many different materials and selected for hose compatibility and the specific application. Fittings are most commonly made of brass, carbon steel, stainless steel, or plastic.
Brass fittings are not as strong and durable as other materials, such as stainless steel. However, they are suitable for non-severe conditions. Brass fittings can be used in temperatures ranging from -65°F (-54°C) to 400°F (204°C) and are capable of withstanding pressures of up to psi, though lower pressure ranges are usually recommended.
Carbon steel fittings are very strong and durable, possessing a high resistance to heat-- they can withstand temperatures ranging from -65°F (-54°C) to 500°F (260°C). Made from an alloy of iron and carbon, they are usually alloyed with other metals to increase strength and durability.
Stainless steel fittings are commonly used in very extreme applications, capable of withstanding temperatures ranging from -425°F (-254°C) to °F (649°C) and pressures up to 10,000 psi. For highly critical applications, stainless steel fittings can be made with special characteristics rating them for up to 20,000 psi. Stainless is also the best choice for highly corrosive environments.
Plastic fittings are typically more resistant to corrosion but are much less durable than their metal counterparts. This makes them less useful in hydraulic applications, though they are usually used in pneumatics.
To learn more about the importance of proper instrumentation fittings, check out our BluPrint!
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