Is UHP STANDARD thermoplastic hose, type 1 suitable for long-term use at +80Â°C with water-based hydraulic fluids?

No. UHP STANDARD thermoplastic hose, type 1 is rated for an operating temperature range up to +100Â°C in general, but the manufacturer explicitly limits use with water and water-based fluids to a maximum of +65Â°C. Long-term use at +80Â°C with water-based hydraulic fluids would exceed that specified limit and is not suitable. Running above the stated +65Â°C for water-based media can compromise hose materials, reduce service life, and risk failure. Use a hose specifically rated for water-based fluids at +80Â°C or consult the manufacturer for an approved alternative or special construction.

Can UHP STANDARD thermoplastic hose, type 1 be used with mineral oil-based hydraulic fluids at 700 bar and -40Â°C to +100Â°C?

Based on the provided description, UHP STANDARD thermoplastic hose, type 1 has a working pressure of 700 bar and an overall temperature range of -40Â°C to +100Â°C, but the specification explicitly limits the maximum operating temperature to +65Â°C for water and water-based fluids. Mineral oilâbased hydraulic fluids are not water-based; however, compatibility depends on the polyurethane outer layer and polyester/aramid/steel construction resisting the specific mineral oil and any additives at the full temperature range. If the manufacturerâs note only restricts water-based fluids and lists -40Â°C to +100Â°C generally, UHP STANDARD thermoplastic hose, type 1 can be used with mineral oilâbased hydraulic fluids at 700 bar across -40Â°C to +100Â°C provided the manufacturer confirms oil compatibility and seal/end-fitting compatibility. Do not use without explicit manufacturer confirmation for mineral oils and fittings.

Can UHP STANDARD thermoplastic hose, type 1 handle cyclic pressure spikes up to 700 bar in aramid-steel reinforced assemblies?

No. not reliably for cyclic spikes up to 700 bar in aramidâsteel reinforced assemblies as described. Why: - The specified construction for the hose you provided (polyester inner, aramid braid + steel braid reinforcement for aramidâsteel assemblies; and a variant UHâOL8Mâ06 with two aramid braids) and the stated working pressure of 700 bar indicate the hose is rated for a continuous working pressure of 700 bar. That rating defines safe steadyâstate operation under prescribed conditions, not necessarily repeated highâfrequency pressure spikes. - Cyclic pressure spikes impose dynamic fatigue on reinforcement fibers and crimps/fittings. Aramid fibers have excellent tensile strength but are sensitive to bending, fatigue and moisture; steel braid adds strength but introduces different fatigue behavior and stress concentrations. Repeated spikes to the hoseâs rated working pressure (or above) accelerates fatigue and can shorten service life or cause failure. - Temperature and fluid limits matter: the operating range (â40Â°C to +100Â°C; for water/waterâbased fluids max +65Â°C) affects material stiffness and fatigue resistance. Elevated temperature or incompatible fluids reduce margin against cyclic stress. - Safe cyclic performance depends on assembly details not given: exact reinforcement lay, number of braids (UHâOL8Mâ06 has two aramid braids, not aramid+steel), hose routing, bend radius, crimps/fittings quality, spike amplitude above nominal pressure, frequency, duty cycle and safety factor. Recommendation: - For sustained or frequent cyclic spikes up to 700 bar, consult the hose manufacturerâs dynamic/cyclic fatigue data and the assembly/fitting supplier. Consider a hose specifically rated and tested for highâcycle impulse service (impulse tested to the required spike magnitude and cycle count) or increase pressure rating and safety margin. Conduct applicationâspecific testing.

UHP STANDARD thermoplastic hose, type 1

Additional information

Material	PEE – polyester
Maximum operating temperature [°C]	100
Minimum operating temperature [°C]	-40
Vacuum resistance	check
Standard length [m]	10

Hose designed for high-pressure hydraulic systems. Inner layer: polyester. Reinforcement: aramid braid + steel braid (UH-OL8M-06 – hose reinforcement consists of two aramid braids). Outer layer: black polyurethane. Working pressure: 700 bar. Operating temperature: from -40°C to +100°C (for water and water-based fluids max. up to +65°C).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Price	Quantity	Actions	Catalogue
UH-0412-06	VHP 10000 thermoplastic hose 1/4"	6	700	In stock	0 zł		Enquiry
UH-0414-10	VHP 10000 thermoplastic hose 3/8"	10	700	In stock	0 zł		Enquiry

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Hose designed for high-pressure hydraulic systems. Inner layer: polyester. Reinforcement: aramid braid + steel braid (UH-OL8M-06 – hose reinforcement consists of two aramid braids). Outer layer: black polyurethane. Working pressure: 700 bar. Operating temperature: from -40°C to +100°C (for water and water-based fluids max. up to +65°C).