Dimensions — Face-to-face dimensions for flanged, two-way, globetype, straight pattern and centre-to-face dimensions for flanged, two-way, globe- type, angle pattern control valves
IEC 60534-3-1-2019 pdf download.Industrial-process control valves — Part 3-1: Dimensions — Face-to-face dimensions for flanged, two-way, globetype, straight pattern and centre-to-face dimensions for flanged, two-way, globe- type, angle pattern control valves.
This part of IEC 60534 specifies face-to-face (FTF) and centre-to-face (CTF) dimensions for given nominal sizes and pressure ratings of flanged, two-way, globe-type, straight pattern and angle pattern control valves. The nominal sizes included are ON 15 to DN 400 for straight pattern control valves and DN 15 to DN 400 for angle pattern control valves.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60534-1. Industrial-process control valves — Part 1: Control valve terminology and general considerations
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60534-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http:/lwww.electropedia.orgl
• ISO Online browsing platform: available at http://www.iso.org/obp
straight pattern valve
valve where the outlet end connection is on the opposite side of the valve and in line with the inlet end connection
3.2
angle pattern valve
valve where the inlet and the outlet end connections are arranged at a right angle with the centerlines matching each other
3.3
face-to-face dimension (FTF)
<for straight pattern valves> distance between the faces of the connecting end flanges upon
which the gaskets are compressed, that is, the contact surfaces (see Figure 1)
3.4
centre-to-face dimension (CTF)
<for angle pattern valves> distance between the plane located at the face of either end
connection and perpendicular to its axis and the axis of the other end connection
(see Figure 1)
5 Face-to-face and centre-to-face dimensions
FTF and CTF dimensions shall be taken from Table 1 to Table 4. These tables shall be used only in Conjunction with the range of nominal sizes and groups of pressure ratings given In the tables.
Control valve FTF and CTF dimensions taken from a given pressure rating group shall be the same; however, control valves may differ in other respects.
NOTE Pressure ratings have been grouped as shown In the tables in order to restrict the number of FTF and CTF dimensions.
6 Tolerances
Tolerances on FTF and CTF dimensions shall be as shown in Table 1 to Table 4.
7 Flange facings
This document only provides FTF and CTF dimensions for control valves with plain-face or raised-face flanges. The FTF and CTF dimensions include the raised face, if provided, as specified in the appropriate flange standard.
For end-to-end dimensions of straight pattern valves with ring joint ends (Figure 2b), dimension X as given in Table 5 shall be added to the face-to-face dimension given in Table 1 and Table 2. For centre-to-end dimension of angle pattern valves with ring joint ends half of dimension X shall be applied to the centre-to-face dimension given in Table 3 and Table 4.
Dimension X as given in Table 5 is taken from the metric values given in ASME B16.1O- 2009.
Control valves with flanges having other special facings such as male and female flange facing or tongue-and-groove are not covered by this part of IEC 60534.IEC 60534-3-1-2019 pdf download.