EXTENDED DIAPHRAGM SEAL

The Extended Diaphragm Seal is ideal for highly viscous and dry powder applications. Its unique design eliminates dead space in piping. It is often used for flush mounting in thick-walled vessels and is available in standard and custom lengths.

Specifications

Wetted Materials: 316L SS, Hast C-276, Monel A400, Alloy 20, Zirconium, Titanium, and Others
Flange Material Non-Wetted: 316L SS (Standard), and Others
Process Temperature Limits: -150°F to 850°F
Ambient Temperature Limits: Determined by the Pressure Instrument.

Minimum Recommended Span

	Flange Size
	1 ½”	2″	3″	4″	6″
Diaphragm Size	1.3″	1.9″	2.8″	3.5″	4.1″
2.5” & 3.5” Gauges	N/A	30 psi	10 psi	10 psi	30″ H2O
4”, 4.5”, & 6” Gauges	N/A	60 psi	15 psi	10 psi	30″ H2O
Transmitter (Gauge Pressure)	50 psi	15 psi	120” H2O	30” H2O	15″ H2O
Transmitter (Differential Pressure)	20 psi	200” H2O	80” H2O	30” H2O	15″ H2O
Differential Pressure Gauge	N/A	N/A	N/A	N/A	100″ H2O

Dimensions

	Flange Rating	A	B	E*
1.5”	150#	5”	1”	1.40”
2”	150#	6″	1.07″	1.90″
2”	300#	6.5″	1.19″	1.90″
3”	150#	7.5″	1.26″	2.80″
3”	300#	8.25″	1.44″	2.80″
4”	150#	9″	1.26″	3.70″
4”	300#	10″	1.57″	3.70″
6″	150#	11″	1.32″	5.5″

*Extension diameter meant to fit SCH80 Nozzle. Custom extension diameters available. NOTE: Dimensions are for raised face flanges only. Other flange sizes and sealing face info can be found in ANSI B16.5 standards.

Extended Diaphragm Seal (W9XT)