Maintenance Work On The Butterfl Y Valve In A Removed Condition; Assembling And Commissioning The Valve After Maintenance Work; Design Of The Sealing System - Samson BR 14t - LTR 43 Mounting And Operating Instructions

Check the butterfl y valve for any leaks in this area prior to
commissioning. If there is still leakage, contact PFEIFFER.
9.3.4 Maintenance work on the butterfl y
valve in a removed condition
Observe Chapter 11 for valve disassembly.
PFEIFFER recommends a rep-kit for the performance of this work,
see Chapter "15.3 Spare parts".
Replacing the seat and seal ring
The series differ in the design of the sealing system, see Chapter
9.6.
The procedure for replacing the seat and seal ring is described in
separate documentation, see the "Applicable documents" in
Chapter 1.
9.4 Assembling and commissioning the valve
after maintenance work
The assembly and commissioning of the valve takes place ac-
cording to the specifi cations in Chapter "5 Installation" and "6
Start-up".

9.5 Design of the sealing system

The following fi gures describe the constructive design of the seal-
ing system of the BR 14t - LTR 43 butterfl y valve series.
Figure 9-4: BR 14t - LTR 43
Table 9-3: Parts list for BR 14t -
Pos.
1
2
3
4
EB 14t_EN
June 2023 edition
Subject to technical changes
LTR 43
Designation
Body
Disc
Clamping ring
Seal ring
Servicing
9-5