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DV86 Series

Product Description

DV86 Series Diaphragm Valve

Suitable for high ultra purity applications 316L Stainless Steel enhances weldability and resistance to corrosion Both manual and pneumatic actuation are available Face seal fittings (FSR) or butt weld connections Internally springless Designed for very low particle generation Metal-to-metal diaphragm seals High-cycle life 1/4 turn of the handle to operate from fully open to closed / Indicator Window Closed and open indication window 100% Helium-leak tested

Materials of Construction

Wetted Body 316L stainless steel Seat PCTFE*, Vespel®** Diaphragm Elgiloy® Non-wetted Nut 316 stainless steel Knob aluminum Operating Conditions Maximum operating pressure 250 psig(17 barg): Pneumatic actuation 3500 psig(240 barg): Pneumatic and manual actuation Minimum operating pressure vacuum Temperature -40°F to 150°F (-40°C to 65 °C) Pneumatic Actuator:   Operating Pressure 70-125psig Inlet Connection 1/8" NPT(Female) Normally Closed Functional Performance Flow Capacity Cv=0.3 Maximum Leak Rate:   Inboard Leakage 1 x 10-9 atm cc/sec He Outboard Leakage 1 x 10-9 atm cc/sec He Across Seat Leakage 4 x 10-9 atm cc/sec He Proof Pressure 150% of maximum rated pressure Burst Pressure 400% of maximum rated pressure Surface Finish Standard Ra (EP) 7µin(Electropolished) Internal Volume 1.6 cc   *   Standard Material **  Vespel® seat is recommended for Nitrous Oxide(N2O) service but is not available for low pressure pneumatic actuation.

Dimensions

Pneumatic Actuator (HP) Pneumatic Actuator (LP) Note: All dimensions are reference         Manual                        Face Seal Male Fittings Face Seal Swivel Male Fittings Tube Weld Stub Note: All dimensions are reference

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