PVC Jacked Flexible Conduit

Component

Material

Function & Properties

Common Applications

Outer Jacket

PVC (Polyvinyl Chloride)

Provides weather, chemical, and abrasion resistance. UV-stabilized for outdoor use.

Outdoor wiring, industrial, marine, solar.

Corrugated Inner Core

PVC or Nylon

Adds flexibility while maintaining crush resistance. Smooth interior for easy wire pulling.

Electrical, telecom, HVAC.

Reinforcement Layer

Steel Wire (Galvanized/Stainless) or Polyester Yarn

Enhances tensile strength and prevents kinking. Steel offers EMI shielding.

Heavy-duty industrial, underground, EMI-sensitive areas.

Lubricant Layer

Silicone or Talc Powder

Reduces friction during cable installation.

High-density wire pulls.

Optional Additives

Plasticizers, Flame Retardants, UV Stabilizers

Improves flexibility (phthalates), fire resistance (self-extinguishing), or UV protection.

Hazardous locations, outdoor/UV-exposed areas.

Nominal Size (Metric)

Inner Diameter (ID) mm

Outer Diameter (OD) mm

Nominal Size (Inch)

Typical Applications

12 mm

9.0 - 10.5

12 - 13.5

3/8"

Low-voltage wiring, LED lighting, sensors.

16 mm

12.5 - 14.5

16 - 18

1/2"

Residential wiring, light fixtures, appliances.

20 mm

16 - 18

20 - 22

5/8"

HVAC controls, machinery wiring.

25 mm

21 - 23

25 - 27

3/4"

Industrial panels, data centers.

32 mm

28 - 30

32 - 34

1"

Power distribution, solar panel arrays.

40 mm

35 - 37

40 - 42

1¼"

Large cable bundles, outdoor installations.

50 mm

45 - 47

50 - 52

1½"

Heavy-duty industrial, underground conduits.

63 mm

58 - 60

63 - 65

2"

Substations, renewable energy projects.

75 mm

70 - 72

75 - 77

2½"

Large-scale commercial/industrial power feeds.

90 mm

83 - 85

90 - 92

3"

High-capacity electrical trunking.

Application Area

Specific Use Cases

Key Benefits

Reinforcement Type (if applicable)

Electrical Installations

• Indoor/outdoor wiring
• Power distribution panels
• Circuit protection

• Insulation against shocks
• Flame-retardant (self-extinguishing)
• Lightweight & flexible

Steel wire (heavy-duty) / Polyester yarn (standard)

Industrial Machinery

• Cable protection in CNC machines, robots
• Assembly line wiring

• Oil/fuel resistance
• Crush-resistant (spiral steel)
• Vibration damping

Galvanized steel wire helix

Outdoor/Weatherproof

• Solar panel wiring
• Street lighting
• Garden/landscape lighting

• UV-resistant jacket
• Waterproof (liquid-tight)
• Corrosion-proof

Nylon inner core + steel wire

Data & Telecom

• Fiber optic conduits
• Server room cable management

• Smooth interior for easy pulling
• EMI shielding (if steel-reinforced)

Steel wire (EMI protection)

HVAC Systems

• Thermostat wiring
• Ducted HVAC controls

• Flexible for tight spaces
• Resists condensation/moisture

Polyester yarn (lightweight)

Marine & Automotive

• Boat wiring
• Vehicle harness protection

• Saltwater/oil resistance
• High flexibility

Stainless steel wire (marine-grade)

Hazardous Locations

• Chemical plants
• Oil refineries

• Acid/alkali-resistant PVC
• Explosion-proof (if certified)

Heavy-duty steel + flame-retardant jacket

Renewable Energy

• Wind turbine cables
• Battery storage systems

• UV/weatherproof
• Durable against abrasion

Double-layer PVC + steel wire

Temporary Installations

• Construction sites
• Event staging

• Reusable
• Easy to coil/transport

Lightweight PVC (no reinforcement)

Underground/Direct Burial

• Subway tunnels
• Irrigation systems

• Waterproof
• Rodent-proof
• Soil acid-resistant

Thick PVC jacket + steel armor