Frequently Asked Questions (FAQ) for HAKKO EIGHTRON E-TB-15 Hose (PVC, Polyester-Reinforced, 15 × 22 mm, 50 m):

1. What is the HAKKO EIGHTRON E-TB-15 hose?

HAKKO EIGHTRON’s E-TB series is a pressure-proof, braided PVC hose designed for industrial use. It delivers long service life, high reliability (over 50 years on the market), and superior flexibility compared with traditional rubber hoses.

2. What are the hose dimensions and available lengths?

Inner diameter: 15 mm

Outer diameter: 22 mm

Standard coil length: 50 m (special distribution in Vietnam)

3. How is the hose constructed and what materials are used?

The hose consists of two layers of clear-blue PVC with a cross-woven polyester fiber reinforcement between them. This structure combines transparency for fluid inspection, pressure resistance, and high flexibility.

4. What are the working pressure and temperature ranges?

Working pressure: 0 to 1.0 MPa (0–10 bar) at 20 °C

5. What is the minimum bend radius and how flexible is the hose?

The minimum bend radius for the 15 × 22 mm size is 105 mm. Compared with rubber hoses of similar dimensions, E-TB-15 is lighter and more pliable, reducing kinks and maintaining steady flow in tight installations.

6. Which fluids and gases are compatible with E-TB-15?

This hose is suitable for transferring:

Compressed air

Water

Oils and lubricants

Powders

Non-corrosive chemicals

The clear-blue PVC allows visual monitoring of flow conditions.

7. Can E-TB-15 handle highly corrosive chemicals?

E-TB-15 is not recommended for strong solvents or highly corrosive chemicals due to PVC’s limited chemical resistance. For aggressive media, HAKKO’s fluorine resin hose series are advised instead.

8. Which fittings should I use with E-TB-15?

Compatible HAKKO fittings include:

Barbed fittings: E-ELS, E-ELB

Nipple fittings: E-FTB, E-FTS

Ferrule fittings: E-ELF, E-ELF-PFA

Hose-guide fittings: E-ELS-GN

Using original fittings ensures secure, leak-free connections without mismatches.

9. How do I cut the hose to precise lengths?

The hose is printed with cut marks every meter. Simply align your cutter with the nearest mark - no manual measuring needed - to achieve exact lengths and minimize waste.

10. How is the hose packaged and stored?

E-TB-15 is supplied wound on a paper bobbin or tire-style coil. Store in a cool, dry location away from direct sunlight to preserve PVC clarity and mechanical properties.

11. What environmental and safety certifications does E-TB-15 hold?

RoHS compliant (EU 2015/863) – no restricted substances beyond allowable thresholds

No UV-328 additive

TSCA compliant – excludes decaBDE, PIP (3:1), 2,4,6-TTBT, PCTP, and HCBD

Certificates and ICP analysis data are available on request.

12. How should I maintain this hose and what is its expected service life?

Avoid bending below four times the minimum bend radius

Inspect periodically for cracks or abrasion, especially after thermal cycling

Clean with water or neutral detergent; avoid harsh solvents

Service life varies with operating pressure, temperature, and chemical exposure; under normal conditions, it outlasts standard rubber hoses.

13. How do I order E-TB-15 and obtain technical support?

Part number: E-TB-15 (50 m coil)

Please contacts QTE Technologies (qtetech.com/en).

14. How does E-TB-15 compare to other E-TB series models?

Choosing the 50 m E-TB-15 reduces excess hose in compact layouts and lowers storage costs compared with the 100 m coil format.