Is the Hydraulic hose EN 856 HI-PULSE 4SP suitable for continuous use at +120Â°C or only for temporary exposure?

Hydraulic hose EN 856 HI-PULSE 4SP: According to the provided specification, the operating temperature range is â40Â°C to +100Â°C, with a note that +120Â°C is allowed only temporarily. Therefore the Hydraulic hose EN 856 HI-PULSE 4SP is suitable for continuous use up to +100Â°C; exposure to +120Â°C should be temporary only (short-term/occasional), not continuous. Continuous operation at +120Â°C would exceed the recommended operating temperature and could reduce service life or compromise safety.

Can Hydraulic hose EN 856 HI-PULSE 4SP be used with petroleum-based fluids at -40Â°C without performance loss?

Yes. Hydraulic hose EN 856 HI-PULSE 4SP can be used with petroleum-based fluids at -40Â°C without performance loss. The hoseâs inner layer is specified as oil-resistant synthetic rubber and the operating temperature range includes -40Â°C to +100Â°C (temporary +120Â°C). Its construction (four steel wire layers) and validated impulse life (1,000,000 cycles) further support reliable performance at that low temperature with petroleum-based hydraulic fluids.

Does Hydraulic hose EN 856 HI-PULSE 4SP meet MSHA flame-resistance requirements for underground mining?

Yes. Hydraulic hose EN 856 HI-PULSE 4SP meets MSHA flame-resistance requirements for underground mining: the product description explicitly states the outer layer is flame-resistant (MSHA). Therefore it is suitable for applications requiring MSHA-approved outer covers for underground mining environments, assuming the specific hose assembly (size, fittings, and any additional customer-specific requirements) aligns with your mine operatorâs safety policies and any applicable approvals.

Hydraulic hose EN 856 HI-PULSE 4SP

All products, Hydraulic rubber hoses/

Additional information

Material	synthetic rubber
Maximum operating temperature [°C]	100
Minimum operating temperature [°C]	-40

General-purpose hydraulic hose. Enhanced hose lifespan compared to the standard confirmed by a test of 1,000,000 impulse cycles. Outer layer is flame-resistant (MSHA). Standards: EN 856 4SP, ISO 3862-1 4SP. Inner layer: black, oil-resistant synthetic rubber. Reinforcement: four layers of steel wire. Outer layer: black, oil-resistant synthetic rubber. Working pressure: from 180 bar to 460 bar (depending on hose diameter). Operating temperature: from -40°C to +100°C (temporarily +120°C).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HW-4SP-10P	HI-PULSE 4SP 3/8" hydraulic hose	10	460	In stock	Enquiry
HW-4SP-13P	HI-PULSE 4SP 1/2" hydraulic hose	12	430	In stock	Enquiry
HW-4SP-16P	HI-PULSE 4SP 5/8" hydraulic hose	16	350	In stock	Enquiry
HW-4SP-19P	HI-PULSE 4SP 3/4" hydraulic hose	20	350	In stock	Enquiry
HW-4SP-25P	HI-PULSE 4SP 1" hydraulic hose	25	320	In stock	Enquiry
HW-4SP-32P	HI-PULSE 4SP 1.1/4" hydraulic hose	32	210	In stock	Enquiry
HW-4SP-38P	HI-PULSE 4SP 1.1/2" hydraulic hose	38	190	In stock	Enquiry
HW-4SP-51P	HI-PULSE 4SP 2" hydraulic hose	50	180	In stock	Enquiry

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General-purpose hydraulic hose. Enhanced hose lifespan compared to the standard confirmed by a test of 1,000,000 impulse cycles. Outer layer is flame-resistant (MSHA). Standards: EN 856 4SP, ISO 3862-1 4SP. Inner layer: black, oil-resistant synthetic rubber. Reinforcement: four layers of steel wire. Outer layer: black, oil-resistant synthetic rubber. Working pressure: from 180 bar to 460 bar (depending on hose diameter). Operating temperature: from -40°C to +100°C (temporarily +120°C).