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S ERIES

SPRINGLESS ALL WELDED CHECK VALVE

AP 64

Defining the new standard of safety & ultraclean •

True Springless Design,free of springs or poppets

Operating Parameters

Source pressurevacuum to 3500 psig (241 bar)Cracking pressure*3 psi (0.23 bar) differential Maximum backpressure3500 psig (241 bar) Proofpressure4,000 psig (276 bar) Burst pressure10,000 psig (690 bar)

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SS 316L VAR secondary remelt material

E NGINEERING

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3,500 psig rated (241 bar)

*Cracking pressure is a nominal value which may vary in specific applications due to pressure,temperature and system variables such as length of time between cracking.

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Low cracking pressure

D

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Reseals with minimal back pressure

ATA

Other Parameters

—S

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15, 10 or 5 µin. Ra max electropolished finish with proper surface chemistry

Inlet & outlet connectors1/4 in. face seal or tube weldFlow coefficient (Cv)0.4 max Internal volume0.122 in.
ERIES 3 (2cm
3 )Operating temperature -10º to +400º F (-23º to +240ºC) Surface finish15 µin. (0.4 µm) Ra max standard10 µin. (0.25 µm) and 5 µin. (0.13 µm) optionalInboard leakage2 x 10
AP64S

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DI cleaned and baked dry

-10 sccsOutboard leakage2 x 10

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PRINGLESSALLWELDEDCHECKVALVE

Manufactured to meet UHP requirements

-10 sccs at500 psig

Materials

Series AP 64 Wetted Parts Body316L SS secondary remeltFinishelectropolished and passivated SealViton
® (optional seal materials available)
All specifications subject to change without notice.Viton® DuPont 687 T ECHNOLOGY W AY N APA ,CA 94558•(707) 259-0102•F AX (707) 259-0117 www.aptech-online.com