707 DUCTILE IRON COUPLING

 

707 DUCTILE IRON

HIGH PRESSURE

FLEXIBLE  COUPLING

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The Model 707 is designed for connection of grooved high pressure pipe systems.

 

Sizes-Inches& Rated working pressure

3/4 to 6(DN20 to DN150)  1000psi(68.9bar)

8 to 12 (DN200 to DN300)  800psi(55.12bar)

Cut groove only

 

MODEL 707 MATERIAL SPECIFICATIONS

Housings:

Ductile Iron to ASTM A536

Surface Finish:

(Antirust paint red or blue)

Hot dip zinc galvanized        Epoxy power      Dacromet       TRFLOWPTFE)      RilsanPA11

 

 

Rubber Gaskets:

The gasket seals is C-shaped, made of standard gasket EPDM(ethylene propylene diene monomer) for

cold water, hot water, rare acid, oil-free air and multiple chemical product (-50~150).It is not suitable

for medium like petroleum.

 

Bolts & Nuts:

Round-head, elliptoid-neck, carriage bolts, type carbon iron covered with zinc or dacromet.

 

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