MODEL 705 DUCTILE IRON MEDIUM PRESSURE FLEXIBLE COUPLING'S SPECIFICATION:

Sizes-Inches/DN
3/4 to 12inch(DN20 to DN300)

Maximum working pressure:
600 psi (42 bar) cut groove only

MODEL 705 MATERIAL SPECIFICATIONS
Housings:
Ductile Iron to ASTM A536

Surface Finish:
Antirust paint red or blue
Hot dip zinc galvanized
Epoxy power
Dacromet
TRFLOW(PTFE)
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 degree). It is not suitable for medium like petroleum.

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

 

APPLICATION:

The Model 705 is designed for connection of grooved medium pressure pipe systems.