Composite Hose STS Type

Composite Hose STS Type
The Composite Hose STS Type is the highest specification composite hose — combining full stainless steel 316 inner and outer wire helixes with multiple layers of PTFE film inner lining for maximum chemical resistance and corrosion protection. This composite hose STS type is designed for the most demanding chemical transfer involving aggressive acids, concentrated alkalis, reactive solvents, and Chemical Group 3 substances in marine, offshore, and chemical plant environments. EN 13765 certified, Chemical Group 3 rated. Available from Flytech Engineering Sdn Bhd with ready stock in Klang, Selangor.

Key Features
• Working pressure: 10 Bar (145 PSI)
• Vacuum rating: Full vacuum rated
• Temperature range: -30°C to +100°C
• Inner lining: Multiple layers of PTFE film
• Wire: Full Stainless Steel 316 (SS316) inner AND outer wire helix
• Cover: PVC-coated polyester — weatherproof and abrasion resistant
• Chemical rating: Group 3 — highest chemical resistance
• Sizes: 1″ to 8″ (DN25 to DN200)
• Certification: EN 13765, IMO IBC Code
• Safety factor: 5:1

Applications
• Concentrated acid and aggressive alkali transfer
• Chemical Group 3 ship-to-shore transfer
• Offshore chemical platform transfer lines
• Pharmaceutical and high-purity chemical transfer
• Marine bunkering of aggressive chemical cargoes
• Chemical tanker loading and unloading

Available Configurations
• Loose hose — cut to required length
• Assembled with Camlock couplings (Type A, B, C, D, E, F)
• Assembled with BSP threaded end fittings
• Assembled with flanged ends (ANSI 150#, DIN, JIS)
• Hydrotest with certificate available on request

Why Choose Flytech Engineering?
• Ready stock — Klang, Selangor — fast delivery nationwide
• ISO 9001:2015 certified — consistent quality since 1999
• Over 25 years supplying composite hoses
• Custom assembly — any length, any end fitting
• Hydrotest with cert — for marine, offshore and oil & gas
• Export ready — Singapore, Indonesia, Thailand, Middle East

Frequently Asked Questions
Q: What is composite hose STS type used for?
A: Composite hose STS type is used for the most aggressive Chemical Group 3 transfer — concentrated acids, alkalis, reactive solvents — in marine, offshore, and chemical plant environments requiring maximum wire and lining resistance.

Q: What makes composite hose STS type the highest specification?
A: The STS type combines full SS316 wire both inner and outer with PTFE film lining — maximum corrosion resistance in the wire AND maximum chemical resistance in the bore. Preferred for aggressive chemicals, marine, and offshore applications.

Q: When should I use STS instead of STG?
A: Choose STS when both inner and outer wire corrosion resistance are critical — offshore environments, aggressive chemical service with saltwater exposure, or where outer wire contacts corrosive substances.

Q: What sizes are available?
A: Available in sizes 1″ to 8″ (DN25 to DN200) from Flytech Engineering. Custom lengths available.

Q: Is hydrotest certification available?
A: Yes. Hydrotest with certificate is standard for composite hose STS type assemblies given the critical chemical service applications.