DV86 Diaphragm Valves
DV86 Diaphragm Valves
FeaturesSuitable for high purity applications
316L stainless steel enhances, welding and corrosion resistance
Both manual and pneumatic actuator are available
Face seal fittings (FSR) and butt weld connections
Internal springless
Design for very low particle generation
Metal-to-metal diaphragm seals
High cycle life
1/4 turns of the handle to operate from fully open to closed
Closed and open indication window
100% Helium leak tested
Materials of Construction*Wetted:Body - 316L stainless steelSeat - PCTFE, VespelDiaphragm - Elgiloy*Non-wetted:Nut - 316 stainless steelKnob - aluminumOperating ConditionsMaximum operating pressure - 250 psig (17 barg): Pneumatic and manual actuator, 3500 psig (240 barg): Pneumatic and manual actuatorMinimum operating pressure - vacuumTemperature - -40F to 150F (-40C to 65C)Functional PerformanceFlow Capacity - Cv=0.3Designed Leak Rate:Inboard Leakage - 2 x 10-10 atm cc/sec HeOutboard Leakage - 1 x 10-9 atm cc/sec HeAcross seat Leakage - 4 x 10-9 atm cc/sec HeDesigned Proof Pressure - 150% of maximum rated pressureDesigned Burst Pressure - 400% of maximum rated pressureSurface FinishStandard Ra (EP) - 7uinInternal Volume1.6 cc* 1. Don't supply Vespel seat with low pressure pneumatic actuaton valve2. Recommended for Nitrous Oxide (N2O) service
