Siemens P Valve manifold combination DN, 214, Valve manifold Blow-out valves

© Siemens AG 2008

SITRANS P measuring instruments for pressure

Fitttings - Shut-off valves for differential pressure transmitters

Valve manifold combination DN 8

	■Overview	■Function
		•	Shutting off the differential pressure lines
		•	Blowing out the differential pressure lines
2		• Checking the pressure transmitter zero
		As an option it is possible to order a version with a test connec-

tion, to which a test device for checking the pressure transmitter characteristic can be connected.

The valve manifold combination DN 8 (7MF9416-4..) is for pres- sure transmitters for differential pressure.

It is used to shut off and blow out the differential pressure lines and to check the pressure transmitter zero.

In the designs with a test connection, a test device can be con- nected to check the pressure transmitter characteristic.

■Benefits

• Max. working pressure 420 bar

■Application

The valve manifold combination DN 8 is designed for vapors.

■Design

The valve manifold combination DN 8 has a process connection with welding pins.

The connection for the pressure transmitter is designed as as flange connection, while the blow-out connection is designed as a pipe union with ferrule.

The manifold valves have an internal spindle thread, while the blow-out valves have an external spindle thread.

The optional test connection is M20x1.5.

The valve manifold combination DN 8 is supplied with a mount- ing plate.

Materials used

	Valve manifold		Blow-out valves
Component	Material	Mat. No.	Material	Mat. No.
Housing	P250GH	1.0460	16 Mo 3	1.5415
Head parts	C 35	1.0501	21 CrMo V57	1.7709
Spindles	X 12	1.4104	X 20 Cr 13	1.4021
	CrMoS 17
Cones	X 35	1.4122	X 35	1.4122
	CrMo 17		CrMo 17
			hardened
			and tem-
			pered
Valve seats	X 6 CrNiMoTi 1.4571/316Ti		X 20 Cr 13	1.4021
Packings	PTFE	-	Pure	-
			graphite
Welding pins	-	-	16 Mo 3	1.5415

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Siemens FI 01 · 2009