Honeywell Piping SMV 3000 Transmitter, Flange for manifolds on 2, 2-1/8, or 2-1/4 inch centers

4.3Piping SMV 3000 Transmitter

Summary	The actual piping arrangement will vary depending upon the process
	measurement requirements. Process connections can be made to standard
	1/4-inch NPT female connections on 2-1/8 inch centers in the double-
	ended process heads of the transmitter’s meter body. Or, the connections
	in the process heads can be modified to accept 1/2 inch NPT adapter
	flange for manifolds on 2, 2-1/8, or 2-1/4 inch centers
	The most common type of pipe used is 1/2 inch schedule 40 steel pipe.
	Many piping arrangements use a three-valve manifold to connect the
	process piping to the transmitter. A manifold makes it easy to install and
	remove a transmitter without interrupting the process. It also
	accommodates the installation of blow-down valves to clear debris from
	pressure lines to the transmitter.
	Figure 10 shows a diagram of a typical piping arrangement using a three-
	valve manifold and blow-down lines for a flow measurement application.

Figure 10 Typical 3-Valve Manifold and Blow-Down Piping

Arrangement.

To Downstream Tap To Upstream Tap

Blow-Down Valve

3-Valve Manifold

Blow-Down Valve

Blow-Down Piping

Blow-Down Piping

To Low Pressure	To High Pressure
Side of Transmitter	Side of Transmitter
To Waste	To Waste
	21010
	Continued on next page

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