Samson EB 20a, Mounting And Operating Instructions

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2-1
EB 20a_EN
May 2022 edition
Subject to technical changes
Markings on the device
2 Markings on the device
Each ball valve usually has the following marking.
Table | 2-1: Marking on the type plate and on the body of the ball valve
Pos. For Marking Remark
1 Manufacturer PFEIFFER Address see Chapter “15.3 Service”
2 Valve type BR (and number value) e.g. BR 20a = Series 20a, see the PFEIFFER catalogue
3
Body material e.g. EN-JS 1049 No. of the material standard according to DIN EN 1563 (previous: GGG 40.3)
Lining e.g. PTFE Material marking of the lining “PTFE”
4 Size DN (and number value) Number value in [mm], e.g. DN 50/ number value in [inches], e.g. NPS2
5 Maximum pressure PN (and number value) Number value in [bar] at room temperature, e.g. PN 10 / number value [inches], e.g. cl150
6
Max. permissible op-
erating temperature TS (and number value) PS are TS are related values here at the max. permissible operating temperature with the
max. permissible operating overpressure, see also the Pressure-Temperature Diagram

PT 20a-01 and

PT 20a-02
Max. permissible op-
erating pressure PS (and number value)
7 Test pressure PT (and number value) The test pressure must be observed depending on the device
8
Manufacturer number
from 2018
e.g. 381234/001/001
38 1234 /001 /001
Valve no. within the item
Item in the order
Order
Year of manufacture (38=2018, 39=2019, 30=2020,
31=2021 etc.)
Manufacturer number
2009 to 2017
e.g. 211234/001/001
21 1234 /001 /001
Valve no. within the item
Item in the order
Order
Year of manufacture (29=2009, 20=2010, 21=2011,
22=2012 etc.)
Manufacturer number
until 2008
e.g. 2071234/001/001
207 1234 /001 /001
Valve no. within the item
Item in the order
Order
Year of manufacture (205=2005, 206=2006, 207=2007
etc.)
9 Flow coef fi cient e.g. kvs 10 (DIN) = value, Cv (ANSI) = value (optional)
10 Characteristic curve e.g. % % = equal percentage, lin = linear (optional)
11 Test point number e.g. F123201-1 Speci fi ed by the customer
12 DataMatrix code
13
Conformity CE Conformity is certi fi ed separately by the manufacturer
Code No. 0035 “Noti fi ed body” according to EU Directive = TÜV Rheinland Service GmbH
14 Flow direction
Î
Attention: see the note in Chapter “5.4 Installing the ball valve in the pipe”
Markings on the body and the type plate must be permanent so that the ball valve remains identi fi able.
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