What are the main differences between fracturing hoses and ordinary hydraulic hoses?

Pressure Rating and Construction:
Fracturing Hoses: Designed to withstand extremely high pressures, often exceeding 15,000 psi (103 MPa), with multiple layers of high-tensile steel wire braid or wire rope reinforcement to handle the high-pressure pulsation and vibration during hydraulic fracturing operations.
Ordinary Hydraulic Hoses: Typically rated for lower pressures, usually up to 5,000–10,000 psi (34–69 MPa), with fewer reinforcement layers, making them unsuitable for fracturing applications.

Material Composition:
Fracturing Hoses: Use highly wear-resistant and chemical-resistant inner liners (e.g., hydrogenated nitrile rubber, thermoplastic polyurethane) to withstand abrasive fracturing fluids (e.g., sand-laden fluids) and harsh chemicals. The outer cover is often made of weather-resistant synthetic rubber (e.g., chloroprene rubber) to protect against UV exposure and ozone.
Ordinary Hydraulic Hoses: Employ general-purpose rubber compounds (e.g., nitrile rubber) for the inner liner, which may not resist abrasion or chemicals as effectively.

Coupling Design:
Fracturing Hoses: Feature integral couplings or specialized high-pressure fittings (e.g., API 7K-compliant) that are crimped or vulcanized onto the hose to ensure leak-free connections under extreme pressure and vibration.
Ordinary Hydraulic Hoses: Typically use standard threaded or quick-connect couplings, which may not meet the pressure or durability requirements of fracturing operations.

Temperature Range:
Fracturing Hoses: Engineered to operate in a wider temperature range, often from -40°F to +250°F (-40°C to +121°C), to accommodate the environmental conditions of fracturing sites.
Ordinary Hydraulic Hoses: Generally rated for a narrower temperature range, typically -20°F to +180°F (-29°C to +82°C).

Compliance and Certifications:
Fracturing Hoses: Must comply with industry-specific standards such as API 7K, API 16C, or ISO 14693, which define performance requirements for high-pressure fluid transfer in oil and gas applications.
Ordinary Hydraulic Hoses: Adhere to general hydraulic hose standards like SAE J517 or EN 853, which do not address the extreme conditions of fracturing operations.

Application-Specific Features:
Fracturing Hoses: Incorporate features like anti-static layers, flame-resistant covers, or specialized armor (e.g., stainless steel) to protect against hazards such as hydrogen sulfide (H₂S) exposure or high-temperature environments.
Ordinary Hydraulic Hoses: Do not typically include these application-specific enhancements.