KSB ECOLINE FYC, Operating Manual

Page: 47 / 100

4 Valve Description
47 of 100
4.5.3.3 Design details
Design
▪ Gate valve to API 602
▪
Tested to API 598
▪
Body made of forged steel
▪ Bolted bonnet (Class 800)
▪ Welded bonnet (Class 1500 / 2500)
▪ Outside screw
▪
Outside yoke
▪ Non-rotating stem
▪ Stem sealed by gland packing
▪ Non-rising handwheel
▪
Reduced bore
▪ Two-piece self-aligning gland follower
▪ Graphite gland packing
▪ Stem with burnished shank
▪
Fully confined bonnet gasket (Class 800)
▪ Back seat
▪ Solid wedge
▪ 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
▪ 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 threaded ends or butt weld ends to ASME B16.25
▪ Other trims
▪ Other material variants
4.5.3.4 Pressure/temperature ratings
Table 47: Permissible operating pressures in bar at temperatures in °C (to ASME B16.34)
Class Material
0 to
38
93 149 204 260 316 343 371 399 427 454 482 510 538 566 593 621 649 677 704 732 760 788 816
800 A 105 136,0 124,8 120,5 116,4 110,9 104,5 101,1 97,4 93,2 75,7 - - - - - - - - - - - - - -
1500 255,3 233,0 225,4 219,0 209,7 193,6 187,8 181,8 173,6 143,8 - - - - - - - - - - - - - -
2500 425,5 388,3 375,6 365,0 349,5 322,6 313,0 303,1 289,3 239,7 - - - - - - - - - - - - - -
800 A 182
F11
12)
137,9 137,9 132,7 127,4 122,2 111,2 108,1 104,5 97,8 93,4 89,5 82,7 58,6 39,8 26,4 17,7 - - - - - - - -
1500 258,6 257,4 248,7 239,8 231,8 206,6 201,1 194,1 183,1 175,1 169,0 158,2 128,6 74,5 44,0 30,5 - - - - - - - -
2500 430,9 429,0 414,5 399,6 386,2 344,3 335,3 323,2 304,9 291,6 281,8 263,9 214,4 124,1 73,4 50,9 - - - - - - - -