Emerson Rosemount 8750W - Sensor Installation; Flanged Sensors; Flange Bolts

13
Reference Manual
00809-0300-4750, Rev CA
Quick Installation and Start-Up
March 2016
Quick Installation and Start-Up
2.9 Sensor installation
2.9.1 Flanged sensors
Gaskets
The sensor requires a gasket at each process connection. The gasket material must be compatible
with the process fluid and operating conditions. Gaskets are required on each side of a
grounding ring (see Figure 2-10). All other applications (including sensors with lining
protectors or a grounding electrode) require only one gasket on each process connection.
Note
Metallic or spiral-wound gaskets should not be used as they will damage the liner face of the
sensor.
Figure 2-10. Flanged Gasket Placement
A. Grounding ring and gasket (optional)
B. Customer-supplied gasket
2.9.2 Flange bolts
Note
Do not bolt one side at a time. Tighten both sides simultaneously. Example:
1. Snug upstream
2. Snug downstream
3. Tighten upstream
4. Tighten downstream
Do not snug and tighten the upstream side and then snug and tighten the downstream
side. Failure to alternate between the upstream and downstream flanges when tightening
bolts may result in liner damage.
B
A
Flow