A
coupling can be installed 3–4 times faster than a comparable welded or brazed joint and there is no need fora flame or welding torch on the job site. A coupling can be installed by fastening a pair of bolts and nuts while using only a wrench or spanner, whereas a comparable flanged joint requires the fastening of many bolts and nuts with a pair of wrenches. The
grooved system allows for easy material take-offs and unlike a threaded system, there is no need to allow for added pipe length for thread engagement. With the removal of just a few bolts one can easily access the system for cleaning, maintenance, changes and or system expansion.
Main Features
Name: Grooved Couplings and Fittings
Brand: jizhong
Original:CHINA
1) Ductile iron ASTM A536 GRADE 65-45-12
2) EPDM RUBBER GASKET
3) PAINT RAL-3000,ORANGE,GALV
Housing Features
Name: Coupling Housing
Brand: jizhong
Original: CHINA
Ductile Iron: Standard coupling housings and fittings are made of ductile Iron conforming to ASTM A536 Gr.65-45-12. The properties of Grade 65-45-12 ductile iron are as follows;65,000 psi (448 MPa) tensile strength, 45,000 psi (310 MPa) yield strength and 12% elongation.
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