Is the OL7 MARINE double braided polyester thermoplastic hose suitable for continuous use in seawater and saline air environments?

Yes. The OL7 MARINE double braided polyester thermoplastic hose is suitable for continuous use in seawater and saline air environments. Its description explicitly states resistance to seawater and suitability for operation in high humidity and saline air. Construction.polyester inner tube, double polyester braid reinforcement and a micro-perforated polyurethane outer layer.provides flexibility and corrosion resistance appropriate for marine conditions. Operating temperature range (â54Â°C to +100Â°C; for water and air up to +70Â°C) and working pressures (70â230 bar depending on diameter) further support its use with water-based fluids and air in marine settings. Ensure selected diameter meets required working pressure and that application temperatures for seawater exposure do not exceed +70Â°C.

Can the OL7 MARINE double braided polyester thermoplastic hose handle fuel and hydraulic oil in temperatures as low as -54Â°C?

Yes. The OL7 MARINE double braided polyester thermoplastic hose is specified for hydraulic oil and fuels and is rated for operation down to â54Â°C. Its construction (polyester inner layer, double polyester braid reinforcement, micro-perforated polyurethane cover) and the stated operating temperature range (â54Â°C to +100Â°C; for water and air up to +70Â°C) indicate suitability for use with hydraulic oil and fuels at temperatures as low as â54Â°C, provided working pressures for the chosen hose diameter (70â230 bar range) are respected and compatibility with specific fluids is confirmed.

Does the OL7 MARINE double braided polyester thermoplastic hose resist micro-perforation damage from seawater exposure?

Yes. The OL7 MARINE double braided polyester thermoplastic hose is specifically described as resistant to seawater and suitable for operation in high humidity and saline air environments. Its constructionâpolyester inner layer, double polyester braid reinforcement, and a micro-perforated polyurethane outer layerâcombined with marine suitability and compliance with SAE 100R7 / ISO 3949-R7 standards indicates designed resistance to seawater exposure. However, note that the outer layer is described as micro-perforated polyurethane, which can allow limited fluid exchange; while the hose resists seawater and saline environments, micro-perforations may reduce long-term impermeability compared with fully solid coverings. For critical applications where absolute prevention of micro-perforation ingress is required, consider validating performance through manufacturer data, testing, or a hose with a fully solid outer cover.

Thermoplastic hose with a double polyester braid OL7 MARINE

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Additional information

Material	PEE – polyester
Maximum operating temperature [°C]	100
Minimum operating temperature [°C]	-54
Vacuum resistance	check

Light, flexible hose intended for oil hydraulic systems, gases, air, fuels, water-based fluids. Resistant to very low temperatures and salty sea water. Suitable for operation in an environment of high humidity and salty air. standards: SAE 100R7, ISO 3949-R7. Inner layer: polyester. Reinforcement: a double polyester braid. Outer layer: micro-perforated polyurethane. Working pressure: from 70 bar to 230 bar, depending on the hose diameter. Operating temperature: from -54°C to +100°C (for water and air up to +70°C).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
ZC-OL7MARINE-05	Hose thermoplastic OL7 MARINE 3/16"	5	210	In stock	Enquiry
ZC-OL7MARINE-06	Hose thermoplastic OL7 MARINE 1/4"	6	200	In stock	Enquiry
ZC-OL7MARINE-08	Hose thermoplastic OL7 MARINE 5/16"	8	190	In stock	Enquiry
ZC-OL7MARINE-10	Hose thermoplastic OL7 MARINE 3/8"	10	175	In stock	Enquiry
ZC-OL7MARINE-13	Hose thermoplastic OL7 MARINE 1/2"	12	140	In stock	Enquiry
ZC-OL7MARINE-16	Hose thermoplastic OL7 MARINE 5/8"	16	105	In stock	Enquiry
ZC-OL7MARINE-19	Hose thermoplastic OL7 MARINE 3/4"	20	90	In stock	Enquiry
ZC-OL7MARINE-25	Hose thermoplastic OL7 MARINE 1"	25	70	In stock	Enquiry

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Light, flexible hose intended for oil hydraulic systems, gases, air, fuels, water-based fluids. Resistant to very low temperatures and salty sea water. Suitable for operation in an environment of high humidity and salty air. standards: SAE 100R7, ISO 3949-R7. Inner layer: polyester. Reinforcement: a double polyester braid. Outer layer: micro-perforated polyurethane. Working pressure: from 70 bar to 230 bar, depending on the hose diameter. Operating temperature: from -54°C to +100°C (for water and air up to +70°C).