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Parker 超高纯度阀门
Parker Ultra High Purity Valves
High Flow, Compact Size Diaphragm Valve - NV70 Series

The NV70 is an economical, general purpose, high flow diaphragm valve ideally suited when flowing large volumes of corrosive and non-corrosive fluids.

 

 

The NV70 is an economical, general purpose, high flow diaphragm valve ideally suited when flowing large volumes of corrosive and non-corrosive fluids. This compact, 316L stainless steel valve ensures positive and consistent shut off with manual or air actuation. The NV70 uses a high fatigue strength diaphragm (Elgiloy) that creates an external metal seal, and provides a reliable seal to atmosphere. Internally threadless and springless. High cycle life. Compact size. Positive, consistent shut off. Metal-to-metal seal to atmosphere. Cleaned for O2 service. Ideal for high flow applications. Fully functional from vacuum to 150 psig for AOPLPNO / AOPLPNC valves and 250 psig for manual valves.

 

High Flow, Compact Size Diaphragm Valve - NV70 Series

 

Technical Specifications

Body Material: 316L Stainless Steel
Diaphragm Material: Elgiloy, Equivalent
Seat Material: PCTFE (std), Polyimide
Cap Material: 17-4 PH Stainless Steel, N/A
Nut Material: 17-4 PH Stainless Steel
Actuator Housing Material: N/A, Anodized Aluminum
Burst Pressure: 750 psig (52 barg)
Proof Pressure: 375 psig (26 barg)
Flow Rate: Cv .7 (AOP versions, Indicator Knob, Handwheel)
Internal Leak Rate: Bubble Tight
External Leak Rate: Bubble Tight
Volume: 4.9 cm3
Weight: 1.2 lb, 0.55 kg
Maximum Inlet Pressure Rating: 150, 250 psig / 10.3, 17.2 barg
Minimum Inlet Pressure Rating: Vacuum
Actuation Pressure: N/A, 70-125 psig
Air Inlet Connection Size: N/A, 1/8" NPT
Maximum Operating Temperature: 66 °C, 150 °F
Minimum Operating Temperature: -40 °C, -40 °F

 

High Flow, Compact Size Diaphragm Valve - NV70 Series 型号

Part Actuation Connection
54020848 Spin Handwheel 1/2" Male NPT In & Out
54020928 Spin Handwheel 1/2" Compression In & Out
54020929 Spin Handwheel 1/2" Female NPT In & Out
54021157 Air Operated, Low Pressure, Normally Closed 1/2" Compression In & Out
54021158 Indicator Knob 1/2" Compression In & Out
54021227 Air Operated, Low Pressure, Normally Closed 1/2" Female NPT In & Out
54021228 Indicator Knob 1/2" Female NPT In & Out
54021409 Air Operated, Low Pressure, Normally Closed 1/2" Male NPT In & Out
54021410 Indicator Knob 1/2" Male NPT In & Out
54022501 Air Operated, Low Pressure, Normally Open 1/2" Compression In & Out

 

 

 



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