Diaphragm seals of sandwich design, 158

Diaphragm seals of sandwich design

For gage, absolute, differential pressure and flow with flexible capillary

Diaphragm seals of sandwich design

Nominal diameter	Nominal pressure
• DN 50	PN 16 ... PN 100
• DN 80	PN 16 ... PN 100
• DN 100	PN 16 ... PN 100
• DN 125	PN 16 ... PN 100
• 2 inch	Class 150 ... class 2500
• 3 inch	Class 150 ... class 2500
• 4 inch	Class 150 ... class 2500
• 5 inch	Class 150 ... class 2500

Sealing face
• For stainless steel, mat. No.	To EN 1092-1, form B1 or
1.4404/216L	ASME B16.5 RF 125 ... 250 AA
	ASME B16.5 RF 125 ... 250 AA
• For the other materials	To EN 1092-1, form B2 or
	ASME B16.5 RFSF

Materials
• Main body	Stainless steel 316L
• Wetted parts	Stainless steel 316L
	• Without foil
	• PTFE (for vacuum on request)
	• ECTFE (for vacuum on request)
	• PFA (for vacuum on request)
	Monel 400, mat. No. 2.4360
	Hastelloy C276, mat. No. 2.4819
	Hastelloy C4, mat. No. 2.4610
	Tantalum
• Capillary	Stainless steel, mat. No.
	1.4571/316Ti
• Sheath	Spiral hose made of stainless
	steel, mat. No. 1.4301/316

Sealing material in the process
flanges
• For pressure transmitters, absolute	Copper
pressure transmitters and low-
pressure applications
• For other applications	Viton

Maximum pressure	See above and the technical data
	of the pressure transmitters
Tube length	Without tube as standard (tube
	available on request)

Capillary
• Length	Max. 10 m (32.8 ft), longer
	lengths on request
• Internal diameter	max. 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 (for measuring O2)
	Food oil (FDA listed)
	Glycerine/water (not suitable for
	use in low-pressure range)

Permissible ambient temperature	Dependent on the pressure trans-
	mitter and the filling liquid of the
	remote seal
	More information can be found in
	the technical data of the pressure
	transmitters and in the section
	"Technical data of filling liquid" in
	the Technical description to the
	remote seals

Weight	Approx. 4 kg (8.82 lb)

Certificate and approvals
Classification according to pressure	For gases of fluid group 1 and liq-
equipment directive (DRGL	uids of fluid group 1; complies
97/23/EC)	with requirements of article 3,
	paragraph 3 (sound engineering
	practice)

Siemens FI 01 · 2009