Diaphragm Valves

Title:

Diaphragm Valves

DV86 Series

• Suitable for ultra high purity applications

• Both manual and pneumatic actuation are available

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

• Internal spring-less design and metal-to-metal seal minimizes particle generation and ensures "purity integrity" 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

* Standard Material

** Vespal® seat is recommended for Nitrous Oxide (N2O) service but is not available for low pressure pneumatic actuation.

SL	DV86	M	L	VM4	K	E	IS
Body Material	Model	Actuation	Working Pressure	Inlet/Outlet	Valve Seat	Options	Option
SL: 316L	DV86	M: Manual	H: 3500 psi	VM4, VM8	K: PCTFE	None: 15 µin	IS: Electronic indicator (for 3500 psi pneumatic only)
		P: Pneumatic	L: 300 psi	VSM4, VSM8	V: Vespel®	E: 7 µin (EP)	NO: Normally open (for 300 psi pneumatic only)
		(Normally closed)		VSF4, VSF8
				TW4, TW6, TW8

Type	Dimensions	4 = 1/4" 6 = 3/8" 8 = 1/2"
VM: Face seal male (FSR fittings)	4, 8
VSM: Face seal swivel male (FSR fittings)	4, 8
VSF: Face seal swivel female (FSR fittings)	4, 8
TW: Butt welded	4, 6, 8

• Maximum operating pressure: 300 psi (20 bar), 3500 psi (240 bar)

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

• Cv: 0.3

• Body: 316L stainless steel

• Seat: PCTFE*, Vespel®**

• Diaphragm: Elgiloy®

• Standard Ra: 15 µin (BA); Optional: 7 µin (EP)

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