• Application:

Used for transmission of fire resistance hydraulic oil, and used with riser tensioner on deep-water semi-submersible drilling platform to compensate the drift stroke of the drill pipe.

• Standard: API Spec 7K / API Spec 17K/ GB/T31065

• API monogram No.:7K-0106/ 17K-0008

• Hose structure:

Tube: stainless steel carcass + NBR or HNBR rubber based liner sealing layer, oil resistance, corrosion resistance, high temperature resistance, gas permeation resistance(HNBR). 

Breaker layers and external protection layers: High tension textile fabric layers. 

Major Reinforcement for withstanding pressure: High strength steel cable. 

Fire proof layers: fiber glass layers underneath cover rubber.

Cover: Neoprene rubber based cover, fire-proof, wear resistance, oil resistance, ozone/ageing resistance, UV resistance, which is applicable for challenging marine environment.

• Fire resistance according to standard API Spec 16C, at 704℃ ×30min. 

• Different option of external protection layer are available as request,or by our recommendation according to specific operation condition, for example stainless steel outer wrap armor, embedded stainless steel wire in cover, or polyethylene spiral guard, etc.

• Working temperature: class I, -25 to +82 ℃

• Flexibility specification level: FSL1

• Maximum length: 60m

• Length tolerance:6.4m ± 64 mm and below, ± 1％ of hose with a length of greater than 6.4m. 

• Measuring basis of minimum bending radius is the center line of each hose.