Diaphragm Valves

Title:

Diaphragm Valves

DV90 Series

• Suitable for ultra high purity applications

• End connections: Face seal fittings (FSR) and butt welded

• Internal spring-less design and metal-to-metal seal minimizes particle generation and ensures high purity in the flow passages

• Cleaned and degreased for oxygen service according to CGA G-4.1 and ASTM G93 Class C, respectively

• Long service life

• 100% Helium leak tested

SL	DV90	B	VSM8	E
Body Material	Model	Options	Inlet/Outlet	Internal Finish
SL: 316L	DV90	(Purge port, 1/4" FSR external threaded fitting)	VSM8	E: 7 µin
		None: No purge port	VSF8
		U: with inlet purge port	TW8
		D: with outlet purge port	TW12
		B: with both inlet and outlet purge port

Please refer to the chart above for the available specifications for the desired connection type.

Type	Dimensions	8 = 1/2" 12 = 3/4"
VSM: Face seal swivel male (FSR fittings)	8
VSF: Face seal swivel female (FSR fittings)	8
TW: Butt welded	8, 12

• Maximum operating pressure: 300 psi (20.7 bar)

• Temperature range: -40˚F~150˚F (-40˚C~ 65˚C)

• Cv: 2.8

• Body: 316L stainless steel

• Seat: PCTFE

• Diaphragm: Elgiloy®

• Standard Ra: 20 µin (BA); Optional: 7 µin (EP)

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