KSB ECOLINE FYC, Operating Manual

Page: 19 / 100

4 Valve Description
19 of 100
4.3.2.2 Fluids handled
▪ Steam
▪
Fluids containing gas
▪ Gas
▪ High-temperature hot water
▪ Fluids containing mineral oils
▪
Oil
▪ Feed water
4.3.2.3 Design details
Design
▪
Globe valve to API 602
▪ Tested to API 598
▪ Body made of forged steel
▪ Bolted bonnet
▪
Outside screw
▪ Outside yoke
▪ Rotating stem
▪ Rising handwheel
▪
Stem sealed by gland packing
▪ Reduced bore
▪ Two-piece self-aligning gland follower
▪ Graphite gland packing
▪
Stem with burnished shank
▪ Fully confined bonnet gasket
▪ Back seat
▪ Solid valve disc
▪
Integral seat - ST6 (HF)
▪ 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.
Variants
▪
Seal-welded body/bonnet joint
▪ Full bore
▪ Hard-faced back seat
▪ Extended bonnet
▪
Locking device
▪ Position indicator
▪ Electric actuators
▪ Version in compliance with TA-Luft (German Clean Air Act) to VDI 2440 for
temperatures up to 400 °C
▪ Butt weld ends
▪ NACE standard
▪ Other flanged end designs or butt weld ends to ASME B16.25
▪
Other trims