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J-FLOW tensile restrained coupling & flange adaptor,are tensile resistant fittings for HDPE pipes,it contains an end load resistant mechanism, that grips and seals onto HDPE pipes to prevent the pipe pull off from the pipe system. it's suitable for used with water, drainage,sewage...pipe systems,and the maximum working temperature is 80c

suitable for water & gas

the restrained coupling & adaptor are supplied as standard with EPDM gasket for water applications to EN681, also available with NBR gasket to EN682 for natural gas, petroeum products,drainage,sewage ect.

excellent corrosion protection

metal units are coated with RAL5017 fusion bond epoxy coated powder which with goog anticorrosion characteristic. the nuts and bolts are dacromet, offering long term protection against corrosion, impact and abrasion to ensure continued reliable performance.

meterial and relevant standards:

coupling                     flange adaptor

centre sleeve & end rings / flanged adaptor body & end rings

ductile iron to BS EN-GJS-500-7，EN-GJS-450-10

rolled steel to EN ST/37.2

end rings

ductile iron to BS EN-GJS-500-7，EN-GJS-450-10

bolts/nuts/washers

cold forged steel to  ISO 898-1 CLASS6.8,dacromet coated.

other material available for request

sealing ring:

EPDM to BS EN 681-1+brass teeth

coatings

RAL5017 FBE coated

others available on request