Hydraulic Tubing Selection Guide

The efficient operation of the hydraulic system cannot be separated from high-quality hydraulic tubing. As the "lifeline" of power transmission, the right type of tubing can significantly improve the stability and service life of the equipment. Prince Hydraulic combined with 20 years of industry experience, for your in-depth analysis of hydraulic tubing selection logic and technical points, to help you accurately match the system needs.

First, hydraulic hard tube selection scheme: rigidity and pressure balance art

Selection principle: The selection of hard pipe requires a combination of pressure grade (P), flow rate (v), material strength (σ) three elements, follow the formula δ=PD/(2σ) calculation of wall thickness (δ), to ensure safety factor ≥4.

1. Copper hydraulic tubing

Performance highlights:

The upper pressure limit is 40MPa, and the burst pressure is 120MPa

Oil resistance index > 95%, salt spray corrosion resistance 2000h no rust

Prince Solution:

The cold-rolled seamless copper pipe (Φ6-80mm) and precision welded pipe (Φ80-200mm) are ISO 8434-1 certified and suitable for high-pressure scenarios such as construction machinery leg cylinders

2. Copper hydraulic tubing

Technical features:

Minimum bending radius up to 3D (D is pipe diameter)

Oxidation inhibition scheme: inner tinning layer (3-5μm)

Prince Innovation:

The patented anti-oxidation coating technology reduces the oxidation rate of the oil by 67%, and is recommended for precision circuits such as machine tools and hydraulic fixtures

Second, hydraulic hose selection strategy: flexible and durable dual protection

Selection formula: hose working pressure = nominal pressure × (1-temperature coefficient ×ΔT) × (1-bending loss rate)

1. Nylon composite hydraulic tubing

Parameter analysis:

Thermal deformation temperature: PA11 160℃/PA12 140℃

Pulse life: ≥2 million times (25MPa condition)

Prince Advantage:

Three layers of braided reinforced structure, bending fatigue strength increased by 40%, dedicated to the robot joint pipeline

2. Polymer plastic hydraulic tubing

Economical solution:

Weight only 0.3kg/m (same specification metal pipe 1.2kg/m)

Vica softening point ≥110℃

Prince Protection:

Add UV anti-aging agent, outdoor service life is extended to 5 years

blince hydraulic tubing four core advantages

Accurate matching: Support non-standard customization, pipe diameter range Φ4-600mm

Quality certification: Through MSHA, DNV-GL and other 18 international certifications

Intelligent service: Provide hydraulic pipeline health online monitoring system

Long-term warranty: A 24-month quality commitment exceeding the industry standard by 50%