Panametrics BWT System, Installation Manual, Page: 43 / 58

BWT™ System Installation Guide 35
Chapter 4. Non-Flanged Installation (FSPA/FWPA Buffers)
Chapter 4. Non-Flanged Installation (FSPA/FWPA Buffers)
4.1 Introduction
The non-flanged FSPA and FWPA buffers (see Figure 9 below) are available in either stainless steel or titanium. The
FSPA is a threaded buffer that is screwed into the pipe coupling or nozzle, and the FWPA is a socket-weld buffer that
is welded into the pipe coupling. Both types of buffers enable you to install and remove transducers easily without
interrupting the process or emptying the pipe.
Installing the BWT transducers into an
FSPA or FWPA buffer requires three steps:
• Installing the FSPA or FWPA buffer (see page 36)
• Installing and orienting the transducer junction box (see
page 37)
Note: For gas flow applications, a preamplifier is required. In such applications, the preamplifier may be mounted
in the transducer junction box.
• Inserting the BWT transducers (see page 38)
• Verifying the Installation (see
page 39)
Figure 9: FSPA Buffer (Top) and FWPA Buffer (Bottom)
FSPA Threaded Mount
FWPA Socket-Weld Mount