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Picture of Parker 870ISTS8 - Ultrahigh-purity (UHP) High-flow Diaphragm Valve – 870 Series

*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

Parker 870ISTS8 - Ultrahigh-purity (UHP) High-flow Diaphragm Valve – 870 Series

The 870 Series Diaphragm Valve offers long life and exceptional leak integrity. It can be manually or air-operated and is ideally suited for use in high-flow, high-purity applications (maximum flow capacity = 0.70 Cv).
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Brand Parker
Part No. 870ISTS8
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Products specifications
Attribute nameAttribute value
Surface Finish10 Micro inchActuation Pressure70 to 125
Internal Leak Rate≤ 1 x 10-9 Scc/sec HeCap MaterialStainless Steel 17-4 PH
Body MaterialVeriClean™ Stainless Steel 316LExternal Leak Rate≤ 2 x 10-10 Scc/sec He
Actuator Housing MaterialAnodized AluminumMinimum Inlet Pressure RatingVacuum
DivisionVeriflo DivisionWeight1.44
Seat MaterialPCTFENut MaterialStainless Steel 17-4 PH
Proof Pressure375.0Burst Pressure750 Psig (52 barg)
Flow Rate0.7Volume0.59
Maximum Inlet Pressure Rating250 psig (17.22 barg) (Manual)Maximum Operating Temperature66
Minimum Operating Temperature-40Air Inlet Connection Size1/8" NPT
Diaphragm MaterialElgiloyInlet Port Connection Type1/2” Tube Stub
Outlet Port Connection Type1/2” Tube StubActuationIndicating Handwheel
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