Samson EB 20a, Mounting And Operating Instructions

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15-7
EB 20a_EN
May 2022 edition
Subject to technical changes
Annex
Table | 15-8: Recommended spare parts for the ball valve with double stuf fi ng box
Pos. Designation Material
In the spare parts set for
commissioning
In the spare parts for 2 year
operation
1 Body with lining EN-JS 1049 / PTFE
2 Ball with coating 1.4313 / PTFE •
3 Seat ring PTFE • •
4 Screw/ stud bolt A4-70
5 Nut A4-70
6 Spring washer 1.4310 • •
7 V-ring packing PTFE / 1.4305 • •
8 Thrust ring 1.4301
9 Set of spring washers 1.8159 / DeltaTone • •
10 Bearing bush PTFE with carbon • •
18 O-ring Viton • •
19 Stuf fi ng box lower section 1.4301
20 Distance bush 1.4301
21 Set of spring washers 1.8159 / DeltaTone • •
22 Thrust ring 1.4301
23 V-ring packing 1.4305 / PTFE • •
24 O-ring Viton • •
25 Stuf fi ng box upper section 1.4301
26 Screw A2-70
27 Screw plug 1.4571 • •
28 Washer A4
15.3 Service
For maintenance and repair work as well as malfunctions or
defects, contact the After Sales Service at PFEIFFER for support.
E-mail
The After Sales Service can be reached at the e-mail address

sales-pfeiffer-de@samsongroup.com.
Necessary data
Provide the following information in the case of questions and for
troubleshooting:
− Manufacturer number
− Ball valve type
− Article number
− Nominal size and version of the ball valve
− Manual valve/automated valve
− Medium (designation and consistency)
− Medium pressure and temperature
− Flow rate in m³/h
− Actuator signal pressure
− Number of actuations (year, month, week or day)
− Installation drawing if available
− Completed declaration regarding contamination. This
form is available at

www.pfeiffer-armaturen.com.