Catalogues - siemens-measuring-instruments-for-pressure

Catalogue Siemens - Measuring instruments for pressure

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SIEMENS Process Instrumentation - 81221, 5429, 81469, 80935

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SITRANS P measuring instruments for pressure

Clamp-on industrial seals of flange design_

For

gage pressure, differential pressure and flow

■ Technical specifications

Overview

Clamp-on seals for flange-mounting


	Nominal diameter	Nominal pressure
	• DN 25	PN 6 ... PN 100
	• DN 40	PN 6 ... PN 100
	• DN 50	PN 6 ... PN 100
	• DN 80	PN 6 ... PN 100
	• DN 100	PN 6 ... PN 100
	• 1 inch	Class 150 ... class 2500
	• 11/2 inch	Class 150 ... class 2500
	• 2 inch	Class 150 ... class 2500
	• 3 inch	Class 150 ... class 2500
	• 4 inch	Class 150 ... class 2500
	Process connection	Flange to EN 1092-1 or
		ASME B 16.5
	Sealing face	To EN 1092-1, form B1 or to
	Sealing face	ASME B16.5 RF 125 ... 250 A or
		RFSF
	Materials
	• Main body	Stainless steel 1.4404/316L
	• Diaphragm	Stainless steel 1.4404/316L
	• Wetted parts	Stainless steel 1.4404/316L
		• Without foil
		• ECTFE coating
		• PFA coating (for vacuum on re-
		quest)
		Monel 400, mat. No. 2.4360
		Hastelloy C276, mat. No. 2.4819
		Hastelloy C4, mat. No. 2.4610
		Tantalum
	• Capillary	Stainless steel, mat.
	• Capillary	No. 1.4571/316T
	• Sheath	Spiral hose made of stainless
		steel, mat. No. 1.4301/316
	Capillary
	• Length	Max. 10 m (32.8 ft)
	• Internal diameter	2 mm (0.079 inch)
	• Minimum bending radius	150 mm (5.9 inch)
	Filling liquid	Silicone oil M5
		Silicone oil M50
		High-temperature oil
		Halocarbon oil
		Food oil (FDA listed)
		Glycerin/water (not suitable for
		uses in low-pressure range)
	Permissible ambient temperature	See industrial pressure transmitters, see fill-
		ing liquid
	Weight	Approx. 4 kg (8.82 lb)
	Certificates and approvals
	Classification according to pressure	For gases of fluid group 1 and liq-
	equipment directive	uids of fluid group 1; complies
	(DRGL97/23/EC)	with the requirements of article 3,
		paragraph 1 (appendix 1);
		assigned to category III, confor-
		mity evaluation module H by the
		TUV Nord

Clamp-on seals for flange-mounting

The clamp-on seal is completely integrated in the process line. It is particularly suitable for flowing and highly viscous media.

The clamp-on remote seal consists of a cylindrical jacket into which a thin-walled pipe is welded. It is clamped directly between two flanges in the pipeline.

Design

• Clamp-on seals for flange-mounting (flange design) to EN/ASME for SITRANS P pressure industrial transmitters

- For pressure: MK II, P300, DS III, DS III PA and DS III FF series

- For differential pressure and flow: DS III, DS III PA and

DS III FF

• Sealing face to EN 1092-1 or ASME B16.5

• Connection to the transmitter directly or by means of a flexible capillary (max. 10 m long)

• See Technical data for details of materials used for the wetted parts

• Material used for the capillary, the guard sleeve, the seal's main body and the measuring cell: Stainless steel, mat.-No. 1.4571

• Filling liquid: Silicone oil, high-temperature oil, halocarbon oil, food oil (FDA listed) or glycerin/water (not suitable for uses in low-pressure range)

I Function

The measured pressure is transferred from the diaphragm to the filling liquid and passes either directly or through the capillary to the measuring chamber of the pressure transmitter. The interior of the diaphragm seal and of the capillary, as well as the measuring chamber of the pressure transmitter, are filled gas-free by the filling liquid.

Note:

When operating in the low-pressure range, also during commissioning, it is recommended to use a vacuum-proof remote seal (see Selection and Ordering data).

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Siemens FI 01 • 2008