Coupling:
Material specification and standards
Universal couplings designed and manufactured under quality management system certificate to ISO 9001:1994
Hydrostatic testing conform to standard of AWWA/ANSI C219
Center sleeve
Rolled steel to BS EN 10025-1993 Grade S275
End rings
Ductile iron to BS EN1563-1997
Grade EN-GJS-450-10
Bolts
To BS EN ISO 898:1:1999 Grade 4.8
Nuts
To BS 970: Part 1:S304 stainless steel
Washers
To BS 970: Part 1:S304 stainless steel
Gasket
EPDM to BS 681.1-1996
Coating
The center sleeve and end rings are epoxy coated, whish is certified for portable water
Working pressure: 1.6Mpa
Testing pressure: 2.4Mpa
Working temperature: 0°C to +100°C
Coupling caters for a total angular deflection of ±3 degrees
