(bonded built-in & swaged) high-pressure mud hose/ rotary drilling hose/ vibrat hose/ cement hose NJG-SZ NJG-SY SNG-SZ SNG-SY

• application:

hose is flexible connection between top of stpipe vertically moving swivel on offshe in-l oil drilling explation. vibrat hose is flexible connection between mud pump manifold stpipe, f adjustment isolating vibration.

• stard: api spec 7k / iso 6807 / gb/t 24145

• api monogram no.: 7k-0106

• hose structure :

tube: nitrile rubber based liner sealing layer, oil resistance, acid & alkali resistance, high temperature resistance

• breaker layer external protection layers: high tension textile fabric

maj reinfcement f withsting pressure: high strength steel cable

cover: neoprene based rubber f anti-flaming, wear resistance, oil resistance, ozone & ageing resistance, uv resistance, which is designed f marine environment.

• fire proof grade:

regular supplied hose meets fire proof grade sr6a, which is 704℃ ×5min

fire-rated hose supplied as per request with extra fire proof out layers meet fire proof grade sr6b, which is 704℃ ×30min

• embedded electric heat traced cable is available as request f low temperature operation.

• different option of external protection layer are available as request by our recommendation accding to individual operation condition, f example stainless steel arm outer wrap, embedded stainless steel wire in cover, polyethylene spiral guard, etc.

• wking temperature range: class ⅱ , -25 to +100 ℃

• flexibility code no. level: fsl2 f mud/rotary hose, fsl0 f cement hose

• maximum continuous length: 70m

• length tolerance: length up to 6.4m, with tolerance ± 64 mm; length longer than 6.4m with tolerance ± 1％

• measurement basis of minimum bending radius (mbr) is center line of each hose