CNB grooved end fittings are ductile iron and stainless steel
depending on style and size. Fittings with orange painted, Contact
CNB for details.
Designed specifically for use in grooved piping systems, fittings
are painted orange and grooved or with shoulders conforming to
standard steel pipe outer diameters. When connecting wafer or
lug-type butterfly valve CNB grooved end fittings with adapters,
user must check disc clearance dimensions with the I.D. dimension of
fittings.

Specifications:
1) Nominal size: DN40-200
2) Material: accords to GB11352-89 carbon steel
3) According to GB1348-88 ductile iron
4) Working pressure: PN2.5Mpa / PN1.6Mpa
5) Coating: rust-inhibiting paint (standard), please consult us for
other specific coatings)