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Ultra-High Purity (UHP) High-Flow Diaphragm Valve - 870 Series

Brand: Parker Hannifin

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).

Specifications

Actuation Pressure

  • 70 to 125 psig

Actuator Housing Material

  • Anodized Aluminum

Air Inlet Size

  • 1/8” NPT

Body Material

  • VeriClean 316L Stainless Steel

Burst Pressure

  • 750 psig (52 barg)

Cap Material

  • 17-4 pH Stainless Steel

Diaphragm Material

  • Elgiloy

External Leak Rate

  • ≤ 2 x 10-10 Scc/sec He

Flow Capacity (Cv)

  • Cv .7

Internal Leak Rate

  • ≤ 1 x 10-9 Scc/sec He

Internal Volume (cc)

  • 0.59

Maximum Inlet Pressure (psi)

  • Manual 250 psig (17.22 barg) AOP 150 psig (10 barg)

Maximum Working Temperature (°C)

  • 66° C

Maximum Working Temperature (°F)

  • 150° F

Minimum Inlet Pressure (psig)

  • Vacuum

Minimum Working Temperature (°C)

  • -40° C

Minimum Working Temperature (°F)

  • -40° F

Nut Material

  • 17-4 pH Stainless Steel

Proof Pressure

  • 375 psig (26 barg)

Seat Material

  • PCTFE

Surface Finish (Ra)

  • 10 Micro inch

Weight (kg)

  • 0.65

Weight (Lbs)

  • 1.44
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