NK Norval Check Valves Type CD
This check valve comprises an integral increased flange cone in stainless steel 316 type and is available in the size range 40 mm (1.5 in) to 200 mm (8 in) diameter for mounting between adjacent pipe flanges to BS 4504 NP 16 or equivalent.
Cone and diaphragm assemblies are also available in nominal 25 mm (1 in) and 32 mm (1.25 in) diameters but are not normally suitable for bolting between standard flanges. A choice of diaphragms is available to suit your application.
Featuring the familiar perforated stainless steel cone with a Rilsan polymer coating which gives a super smooth, low friction surface over which the diaphragm easily moves during the opening and closing cycles, these non-return valves are generally supplied with the nameplate flag but plain flange check valves can be supplied for insertion into special purpose machinery.
This check valve comprises an integral increased flange cone in stainless steel 316 type and is available in the size range 40 mm (1.5 in) to 200 mm (8 in) diameter for mounting between adjacent pipe flanges to BS 4504 NP 16 or equivalent.
Cone and diaphragm assemblies are also available in nominal 25 mm (1 in) and 32 mm (1.25 in) diameters but are not normally suitable for bolting between standard flanges. A choice of diaphragms is available to suit your application.
Featuring the familiar perforated stainless steel cone with a Rilsan polymer coating which gives a super smooth, low friction surface over which the diaphragm easily moves during the opening and closing cycles, these non-return valves are generally supplied with the nameplate flag but plain flange check valves can be supplied for insertion into special purpose machinery.



