Is the OL7 polyester braided thermoplastic hose compatible with hydraulic oil, gases, air, fuels and water-based fluids across its pressure and temperature ranges?

Yes. The OL7 polyester braided thermoplastic hose is designed specifically for hydraulic oil installations and is also compatible with gases, air, fuels and water-based fluids within its specified pressure and temperature ranges. It meets SAE 100R7 and ISO 3949-R7 standards. Working pressure ranges from 70 to 230 bar depending on hose diameter. Operating temperature range is â40Â°C to +100Â°C (note: for water and air the maximum recommended temperature is +70Â°C). The hose construction.polyester inner tube, double polyester braid reinforcement and microâperforated polyurethane outer cover.is suitable for those media across the stated limits.

What are the recommended fittings and installation practices for the OL7 polyester braided thermoplastic hose to ensure safe operation up to its max working pressure?

Use fittings rated for the OL7 polyester braided thermoplastic hoseâs maximum working pressure and compatible with thermoplastic hose materials (crimp or reusable ferrule fittings specified by the hose manufacturer). Select fittings sized to match the hose internal diameter to avoid flow restriction or blow-off. Ensure fittings and assemblies meet SAE 100R7 / ISO 3949-R7 recommendations where applicable. Installation best practices: - Crimp or secure fittings to the manufacturerâs torque and crimp specifications; use calibrated tooling. - Maintain straight runs and avoid sharp bends; respect the hose minimum bend radius. - Support and clamp to prevent torsion, chafing and vibration; use anti-abrasion sleeves at contact points. - Allow for thermal movement and avoid routing near high heat sources; observe operating temperature limits (-40Â°C to +100Â°C; for water/air max +70Â°C). - Pressure-test assemblies at or above recommended proof pressure before service. - Replace hose assemblies showing wear, kinks, or damage; do not exceed the hoseâs rated working pressure (70â230 bar depending on diameter).

Can OL7 polyester braided thermoplastic hose be cut and repaired in the field, and what procedures ensure restored safety?

Can OL7 polyester braided thermoplastic hose be cut and repaired in the field, and what procedures ensure restored safety? Yes. OL7 polyester braided thermoplastic hose can be cut in the field for length adjustments, but in-place repairs (splicing or field crimping to restore original rated performance) are limited and must follow strict procedures to ensure safety. Recommended practices: 1. Cutting - Use a sharp blade or hose cutter to produce a clean, square cut. Avoid crushing or fraying the polyester braids. - Support the hose internally during cutting (mandrel or soft plug) to prevent collapse. - Remove loose fibers and clean the tube and braid with a compatible solvent; ensure complete drying. 2. End fittings and termination - Only use fittings and termination methods specified by the hose manufacturer for OL7 construction and for the hoseâs working pressure range (70â230 bar). - If using field-attachable fittings rated for polyester-braided thermoplastic hoses, follow the fitting makerâs step-by-step instructions (correct insertion depth, clamp/crimp settings, sealant if required). - Use calibrated crimping tools sized to the fitting and hose diameter. Never improvise with uncalibrated tools or incompatible fittings. 3. Repair limitations - Do not attempt to splice or patch the hose body to restore pressure capability; external wraps or adhesive patches are not acceptable for pressurized service. - Replace hose if the inner tube, reinforcement braid, or outer polyurethane cover shows abrasion beyond superficial damage, delamination, cuts, or exposure of reinforcement compromising integrity. - For minor outer cover damage only, protective sleeves may be applied as temporary protection but do not substitute for replacement if reinforcement is affected. 4. Pressure testing and inspection - After any field termination, proof-test the assembly at a manufacturer-recommended test pressure (typically higher than working pressure, per standards) for an appropriate duration to confirm no leaks or deformations. - Inspect for correct fitting engagement, crimp uniformity, absence of leaks, and no bulging or soft spots. - Perform periodic inspections in service, especially within the first hours of operation. 5. Environmental and temperature considerations - Ensure materials and sealants used are compatible with conveyed fluids (hydraulic oil, fuels, water-based fluids, gases, air) and operating temperature range (-40Â°C to +100Â°C; for water/air up to +70Â°C). - Do not return assemblies to service if exposed to temperatures or fluids outside rated limits during repair. Summary: Field cutting and proper termination of OL7 polyester braided thermoplastic hose is feasible if using manufacturer-approved fittings, calibrated tools, and following prescribed procedures, plus proof testing. Repairs that attempt to restore a damaged hose body should not be used for pressurized applications. replace the hose when reinforcement or tube integrity is compromised.

OL7 polyester braided thermoplastic hose

All products, Thermoplastic hoses/

Additional information

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

Lightweight, flexible hose designed for hydraulic oil installations, gases, air, fuels, water-based fluids. Standards: SAE 100R7, ISO 3949-R7. Inner layer: polyester. Reinforcement: double polyester braid. Outer layer: micro-perforated polyurethane. Working pressure: from 70 bar to 230 bar, depending on hose diameter. Operating temperature: from -40°C to +100°C (for water and air up to +70°C).

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
ZC-OL7-03	Thermoplastic hose OL7 (SAE 100 R7) 1/8"	4	230
ZC-OL7-04	OL7 thermoplastic hose 5/32"	4	250
ZC-OL7-05	Thermoplastic hose OL7 (SAE 100 R7) 3/16"	5	210
ZC-OL7-06	Thermoplastic hose OL7 (SAE 100 R7) 1/4"	6	200
ZC-OL7-08	Thermoplastic hose OL7 (SAE 100 R7) 5/16"	8	190
ZC-OL7-10	Thermoplastic hose OL7 (SAE 100 R7) 3/8"	10	175
ZC-OL7-13	Thermoplastic hose OL7 (SAE 100 R7) 1/2"	12	140
ZC-OL7-16	Thermoplastic hose OL7 (SAE 100 R7) 5/8"	16	105
ZC-OL7-19	Thermoplastic hose OL7 (SAE 100 R7) 3/4"	20	90
ZC-OL7-25	Thermoplastic hose OL7 (SAE 100 R7) 1"	25	70

Lightweight, flexible hose designed for hydraulic oil installations, gases, air, fuels, water-based fluids. Standards: SAE 100R7, ISO 3949-R7. Inner layer: polyester. Reinforcement: double polyester braid. Outer layer: micro-perforated polyurethane. Working pressure: from 70 bar to 230 bar, depending on hose diameter. Operating temperature: from -40°C to +100°C (for water and air up to +70°C).