705 DUCTILE IRON COUPLING

 

705 DUCTILE IRON

LOW PRESSURE FLEXIBLE

COUPLING

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

 

Sizes-Inches/DN & Rated working pressure:

3/4to 4(DN20 to DN100), 600psi (42bar)

5to 12(DN125 to DN300), 300psi (21bar)

For Sch40S 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

TeflonPTFE       

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.

stainless steel nuts ASTM A-193 B-8M

 

Silicone bronze heavy duty nuts to ASTM B98 C65100 for option

 

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