2.4.3 Pipe Connections
The TEFLON, TEFZEL and polyurethane lined me-
ters have raised faced flanges rated as specified.
The neoprene and hard-rubber lined meters have full
faced flanges rated as specified. Two flange gaskets
are supplied per meter; the mounting studs and nuts
are furnished by the user.
Flange nuts should be tightened in an alternate pat-
tern (e.g., 1-3, 2-4) as shown in Figure 2-18 to pro-
duce equal pressure distribution around the flange
face. Bolt torque should be limited to the values
shown in Tables 2-1 & 2-2. For TEFLON-lined me-
ters, the bolt-torque must be sufficient to force the
flared liner flat against the flange’s raised face.
Refer to Figure 2-17 for recommended piping ar-
rangement.
FIGURE 2-17. RECOMMENDED PIPING ARRANGEMENT
FIGURE 2-18. BOLT
TIGHTENING SEQUENCE
Series 10DX3000 Magnetic Flowmeter Instruction Manual
2-21
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