3
Stainless Steel Adapter
- (See Figure 5) In some cases, the
standard aluminum 1 1/4" NPT threads are not suitable for the
application primarily due to poor abrasion or corrosion resist-
ance. A stainless steel adapter with 1 1/2" NPT process con-
nection threads can be installed to the standard sensor. Using
a suitable mating 1 1/2" NPT half coupling will achieve flush
mounting to the pipe/chute. Teflon
®
or Ryton
®
-equivalent)
process seals can be used with this adapter.
Saddle Coupling
- (See Figure 4) In cases where the SFD-2
sensor is to be installed on small pipes/chutes, Monitor’s saddle
coupling can be used to overcome the difficulty of welding to the
curvature of the material handling line. The aluminum saddle
coupling is threaded to permit engagement of the 1 1/4" NPT
connection on the SFD-2. Using the supplied gasket, acceptable
mounting can be achieved for diameters ranging from 4" to 10".
After selecting the appropriate location, cut a 1 1/2" diameter
hole in the pipe/chute. Position/center the saddle coupling over
the hole while placing the gasket in between. Fasten the saddle
coupling to the pipe/chute using industrial grade hose clamps.
Prior to sensor installation, prepare the mounting threads with
Teflon
®
tape or pipe dope to insure sealing. Tighten the sensor
into the saddle coupling insuring the conduit connection is facing
downward. The saddle coupling can also be fastened to a
pipe/chute with standard screw/nut fasteners by simply creating
mounting holes in the saddle coupling’s “ears” and fastening to
the pipe/chute. It is also feasible to flatten the profile of the sad-
dle coupling (via belt sander, mill, etc.) and use it as a standard
half coupling.
Figure 3
Figure 5
Figure 6
Figure 4
Food Grade Adapter
- (See Figure 6) In applications where
mounting threads are not permitted, a food grade adapter with
an 2" industry standard TRI-CLOVER
®
or Cherry Burrell type
connection can be installed to the standard sensor. A 2" mating
ferrule must be used for mounting to the line.
Locknut
- (See Figure 7) A chrome-plated 1 1/4" NPSM locknut
is available in cases where particular positioning of the sensor in
the mounting apparatus is desired. Some mounting couplings
(straight thread types) may require a locknut to achieve flush
mounting. Using the locknut with other mounting couplings
(tapered thread types) may prohibit flush mounting. Therefore,
careful consideration should be made to insure the mounting
technique does not create a void where material could accumu-
late in front of the sensor’s process seal.
Figure 7
