KSB ECOLINE FYC, Operating Manual

Page: 64 / 100

4 Valve Description
64 of 100
4.7 Swing Check Valves to ANSI/ASME
4.7.1 ECOLINE SCC 150-600
4.7.1.1 Operating data
Table 71: Operating properties
Characteristic Value
Nominal pressure Class 150 - 600
Nominal size NPS 2'' - 24''
Max. permissible pressure 106 bar / 1500 PSI
Min. permissible temperature 0 °C / 32 °F
Max. permissible temperature 816 °C / 1500 °F
Temperatures < 0 °C on request
Selection as per pressure/temperature ratings
(
ð
Section 4.7.1.4, Page 65)
4.7.1.2 Fluids handled
▪ Steam
▪
Fluids containing gas
▪ Gas
▪ High-temperature hot water
▪ Volatile fluids
▪
Feed water
4.7.1.3 Design details
Design
▪ Swing check valve to BS 1868
▪
Tested to API 598
▪ Body made of cast steel or stainless steel
▪ Bolted cover
▪ Internally mounted hinge pin up to 12''
▪
Externally mounted hinge pin for 14" and above
▪ Stainless steel/graphite gaskets
▪ Fully confined cover gasket
▪ Valve seat made of wear-resistant and corrosion-proof materials
▪
Disc protected against rotation
▪ Anti-rotation pin up to 12''
▪ Adjusting bolt up to 12''
▪ The valves satisfy the safety requirements of Annex I of the European Pressure
Equipment Directive 97/23/EC (PED) for fluids in Groups 1 and 2.
▪
The valves do not have a potential internal source of ignition and can be used in
potentially explosive atmospheres, Group II, category 2 (zones 1+21) and
category 3 (zones 2+22) to ATEX 2014/34/EU.