KSB ECOLINE FYC, Operating Manual

Page: 38 / 100

4 Valve Description
38 of 100
Part No. Description Material
Trim 8
Trim 2 Trim 10
12 Gland follower A 105 A 182 F304 A 182 F316
13 Nut A 194 2H A 194 8 A 194 8
14 Stem nut A 276 410 A 276 410 A 276 410
15 Lubricating nipple Brass Brass Brass
16 Handwheel A 197 A 197 A 197
17 Nut A 194 2H A 194 8 A 194 8
18 Name plate SS304 SS304 SS304
19 Washer A 276 410 A 276 410 A 276 410
4.4.2.6 Function
The main components of the globe valves are the pressure-retaining parts, i.e. the
body (1) and the bonnet (6), and the functional unit.
The body (1) and the bonnet (6) are connected by bolts (7), and the joint is sealed to
atmosphere by the gasket (5).
The functional unit consists of the valve disc (2), the stem (3) and the bellows (4). The
actuating unit is a handwheel (16) or actuator.
The stem (3) passage through the bonnet (6) is sealed off by the bellows (4). The
back-up gland packing (8) is tightened by means of two eyebolts (11) and nuts (13).
The bellows-type stem seal is maintenance-free.
The seating surfaces of the body seat and the valve disc (2) are made of stainless
materials. The handwheel (16) is mounted on the square or hexagon of the stem nut
(14) and secured with a nut (17).
4.5 Gate Valves to ANSI/ASME
4.5.1 ECOLINE GTC 150-600
4.5.1.1 Operating data
Table 35: Operating properties
Characteristic Value
Nominal pressure Class 150 - 600
Nominal size NPS 2'' - 36''
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 4.5.1.4, Page 40)
4.5.1.2 Fluids handled
▪ Steam
▪
Fluids containing gas
▪ Gas
▪ High-temperature hot water
▪ Feed water