KSB ECOLINE FYC, Operating Manual

Page: 30 / 100

4 Valve Description
30 of 100
Part No. Description Material
A 351 CF8
A 351 CF8M
554 Washer A 276 420 A 276 420
920.1 Handwheel nut A 194 8 A 194 8
920.2 Nut A 194 8 A 194 8
902 Stud A 193 B8 A 193 B8
560 Pin A 276 304 A 276 304
900 Eyebolt A 193 B8 A 193 B8
920.3 Nut A 194 8 A 194 8
Table 26: Trim materials
Part No. Description Trim 2 Trim 10
304 / 304 316 / 316
100 Body 304 stainless steel 316 stainless steel
350 Valve disc 304 stainless steel 316 stainless steel
200 Stem 304 stainless steel 316 stainless steel
4.3.4.6 Function
The main components of the globe valves are the body (100), the yoke (166), the
valve disc (350), the stem (200) and the actuating unit.
Stem seal
The gland packing (461), which seals off the stem (200), is tightened via the gland
follower (452) by means of eyebolts (900) and nuts (920.3). The yoke (166) features
an integral back seat which seals off the valve when the stem (200) is fully retracted.
Seat/disc interface
The seat ring is an integral part of the body (100). The seating surface of the valve
disc (350) is machined.
Bonnet/cover seal
The body (100) and the yoke (166) are connected by studs (902) and nuts (920.2). The
joint is sealed by means of a joint ring (411).
4.4 Bellows-type Globe Valves to ANSI/ASME
4.4.1 ECOLINE GLB 150-600
4.4.1.1 Operating data
Table 27: Operating properties
Characteristic Value
Nominal pressure Class 150 - 600
Nominal size NPS 2'' - 12''
Max. permissible pressure 106 bar
Min. permissible temperature 0 °C
Max. permissible temperature 427 °C
Temperatures < 0 °C on request
Selection as per pressure/temperature ratings
(
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Section 4.4.1.4, Page 32)