• SMC AP3700 High-Purity Diaphragm Valve (Air-Operated, High Flow, Purge Port)
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SMC AP3700 High-Purity Diaphragm Valve (Air-Operated, High Flow, Purge Port)

SMC AP3700 High-Purity Diaphragm Valve (Air-Operated, High Flow, Purge Port)

SMC AP3700 series air-operated high-flow (Cv 2.8) high-purity diaphragm valve with optional integral purge ports in a monoblock body.

Key features

  • High-purity SUS316L double-melt body, electropolished and passivated; Ni-Co alloy diaphragm, PCTFE seat (polyimide VS option)
  • Air-operated N.C. (AP3700) or N.O. (AP3708); Cv 2.8; working pressure vacuum to 1.7 MPa
  • Monoblock body with purge ports (1/4 face seal male) on inlet and/or outlet side
  • 3/8 tube weld, 1/2 and 3/4 face seal or tube weld connections
  • Indicator switch option IPC/IPO, purge port cap C and VS seat are suffixes

Specifications

Fluid Gases that do not corrode wetted parts
Leakage Inboard 2x10^-11, outboard 2x10^-10 Pa m3/s
Internal finish Ra max 0.4 um (options 0.25/0.18/0.13 um)
Mounting Bottom mount
Working pressure Vacuum to 1.7 MPa
Operating pressure 0.55 to 0.7 MPa
Cv 2.8
Internal volume 12.52 cm3
Mass 1.54 kg
Body SUS316L double melt
Source SMC Korea catalog Process Gas Equipment (SMCKR_AP3000_4000.pdf), p. 766-767
AP3700STW6TW600 Type: N.C. | Connection: 3/8 tube weld | Purge ports: none
AP3700STW6TW6M0 Type: N.C. | Connection: 3/8 tube weld | Purge ports: inlet side
AP3700STW6TW60B Type: N.C. | Connection: 3/8 tube weld | Purge ports: outlet side
AP3700STW6TW6MB Type: N.C. | Connection: 3/8 tube weld | Purge ports: inlet and outlet
AP3700SFV8FV800 Type: N.C. | Connection: 1/2 face seal female | Purge ports: none
AP3700SFV8FV8M0 Type: N.C. | Connection: 1/2 face seal female | Purge ports: inlet side
AP3700SFV8FV80B Type: N.C. | Connection: 1/2 face seal female | Purge ports: outlet side
AP3700SFV8FV8MB Type: N.C. | Connection: 1/2 face seal female | Purge ports: inlet and outlet
AP3700SMV8MV800 Type: N.C. | Connection: 1/2 face seal male | Purge ports: none
AP3700SMV8MV8M0 Type: N.C. | Connection: 1/2 face seal male | Purge ports: inlet side
AP3700SMV8MV80B Type: N.C. | Connection: 1/2 face seal male | Purge ports: outlet side
AP3700SMV8MV8MB Type: N.C. | Connection: 1/2 face seal male | Purge ports: inlet and outlet
AP3700STW8TW800 Type: N.C. | Connection: 1/2 tube weld | Purge ports: none
AP3700STW8TW8M0 Type: N.C. | Connection: 1/2 tube weld | Purge ports: inlet side
AP3700STW8TW80B Type: N.C. | Connection: 1/2 tube weld | Purge ports: outlet side
AP3700STW8TW8MB Type: N.C. | Connection: 1/2 tube weld | Purge ports: inlet and outlet
AP3700SFV12FV1200 Type: N.C. | Connection: 3/4 face seal female | Purge ports: none
AP3700SFV12FV12M0 Type: N.C. | Connection: 3/4 face seal female | Purge ports: inlet side
AP3700SFV12FV120B Type: N.C. | Connection: 3/4 face seal female | Purge ports: outlet side
AP3700SFV12FV12MB Type: N.C. | Connection: 3/4 face seal female | Purge ports: inlet and outlet
AP3700SMV12MV1200 Type: N.C. | Connection: 3/4 face seal male | Purge ports: none
AP3700SMV12MV12M0 Type: N.C. | Connection: 3/4 face seal male | Purge ports: inlet side
AP3700SMV12MV120B Type: N.C. | Connection: 3/4 face seal male | Purge ports: outlet side
AP3700SMV12MV12MB Type: N.C. | Connection: 3/4 face seal male | Purge ports: inlet and outlet
AP3700STW12TW1200 Type: N.C. | Connection: 3/4 tube weld | Purge ports: none
AP3700STW12TW12M0 Type: N.C. | Connection: 3/4 tube weld | Purge ports: inlet side
AP3700STW12TW120B Type: N.C. | Connection: 3/4 tube weld | Purge ports: outlet side
AP3700STW12TW12MB Type: N.C. | Connection: 3/4 tube weld | Purge ports: inlet and outlet
AP3708STW6TW600 Type: N.O. | Connection: 3/8 tube weld | Purge ports: none
AP3708STW6TW6M0 Type: N.O. | Connection: 3/8 tube weld | Purge ports: inlet side
AP3708STW6TW60B Type: N.O. | Connection: 3/8 tube weld | Purge ports: outlet side
AP3708STW6TW6MB Type: N.O. | Connection: 3/8 tube weld | Purge ports: inlet and outlet
AP3708SFV8FV800 Type: N.O. | Connection: 1/2 face seal female | Purge ports: none
AP3708SFV8FV8M0 Type: N.O. | Connection: 1/2 face seal female | Purge ports: inlet side
AP3708SFV8FV80B Type: N.O. | Connection: 1/2 face seal female | Purge ports: outlet side
AP3708SFV8FV8MB Type: N.O. | Connection: 1/2 face seal female | Purge ports: inlet and outlet
AP3708SMV8MV800 Type: N.O. | Connection: 1/2 face seal male | Purge ports: none
AP3708SMV8MV8M0 Type: N.O. | Connection: 1/2 face seal male | Purge ports: inlet side
AP3708SMV8MV80B Type: N.O. | Connection: 1/2 face seal male | Purge ports: outlet side
AP3708SMV8MV8MB Type: N.O. | Connection: 1/2 face seal male | Purge ports: inlet and outlet
AP3708STW8TW800 Type: N.O. | Connection: 1/2 tube weld | Purge ports: none
AP3708STW8TW8M0 Type: N.O. | Connection: 1/2 tube weld | Purge ports: inlet side
AP3708STW8TW80B Type: N.O. | Connection: 1/2 tube weld | Purge ports: outlet side
AP3708STW8TW8MB Type: N.O. | Connection: 1/2 tube weld | Purge ports: inlet and outlet
AP3708SFV12FV1200 Type: N.O. | Connection: 3/4 face seal female | Purge ports: none
AP3708SFV12FV12M0 Type: N.O. | Connection: 3/4 face seal female | Purge ports: inlet side
AP3708SFV12FV120B Type: N.O. | Connection: 3/4 face seal female | Purge ports: outlet side
AP3708SFV12FV12MB Type: N.O. | Connection: 3/4 face seal female | Purge ports: inlet and outlet
AP3708SMV12MV1200 Type: N.O. | Connection: 3/4 face seal male | Purge ports: none
AP3708SMV12MV12M0 Type: N.O. | Connection: 3/4 face seal male | Purge ports: inlet side
AP3708SMV12MV120B Type: N.O. | Connection: 3/4 face seal male | Purge ports: outlet side
AP3708SMV12MV12MB Type: N.O. | Connection: 3/4 face seal male | Purge ports: inlet and outlet
AP3708STW12TW1200 Type: N.O. | Connection: 3/4 tube weld | Purge ports: none
AP3708STW12TW12M0 Type: N.O. | Connection: 3/4 tube weld | Purge ports: inlet side
AP3708STW12TW120B Type: N.O. | Connection: 3/4 tube weld | Purge ports: outlet side
AP3708STW12TW12MB Type: N.O. | Connection: 3/4 tube weld | Purge ports: inlet and outlet
2-Port ValvesSMC
56 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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SMC AP3700 High-Purity Diaphragm Valve (Air-Operated, High Flow, Purge Port)

Brand SMC·2-Port Valves

Available part numbers (56)

AP3700STW6TW600, AP3700STW6TW6M0, AP3700STW6TW60B, AP3700STW6TW6MB, AP3700SFV8FV800, AP3700SFV8FV8M0, AP3700SFV8FV80B, AP3700SFV8FV8MB, AP3700SMV8MV800, AP3700SMV8MV8M0 + 46 more — see full table ↓

How to order

Send the SMC part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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RFQ List (0)
Product codeSpec
AP3700STW6TW600Type: N.C. | Connection: 3/8 tube weld | Purge ports: none
AP3700STW6TW6M0Type: N.C. | Connection: 3/8 tube weld | Purge ports: inlet side
AP3700STW6TW60BType: N.C. | Connection: 3/8 tube weld | Purge ports: outlet side
AP3700STW6TW6MBType: N.C. | Connection: 3/8 tube weld | Purge ports: inlet and outlet
AP3700SFV8FV800Type: N.C. | Connection: 1/2 face seal female | Purge ports: none
AP3700SFV8FV8M0Type: N.C. | Connection: 1/2 face seal female | Purge ports: inlet side
AP3700SFV8FV80BType: N.C. | Connection: 1/2 face seal female | Purge ports: outlet side
AP3700SFV8FV8MBType: N.C. | Connection: 1/2 face seal female | Purge ports: inlet and outlet
AP3700SMV8MV800Type: N.C. | Connection: 1/2 face seal male | Purge ports: none
AP3700SMV8MV8M0Type: N.C. | Connection: 1/2 face seal male | Purge ports: inlet side
AP3700SMV8MV80BType: N.C. | Connection: 1/2 face seal male | Purge ports: outlet side
AP3700SMV8MV8MBType: N.C. | Connection: 1/2 face seal male | Purge ports: inlet and outlet
AP3700STW8TW800Type: N.C. | Connection: 1/2 tube weld | Purge ports: none
AP3700STW8TW8M0Type: N.C. | Connection: 1/2 tube weld | Purge ports: inlet side
AP3700STW8TW80BType: N.C. | Connection: 1/2 tube weld | Purge ports: outlet side
AP3700STW8TW8MBType: N.C. | Connection: 1/2 tube weld | Purge ports: inlet and outlet
AP3700SFV12FV1200Type: N.C. | Connection: 3/4 face seal female | Purge ports: none
AP3700SFV12FV12M0Type: N.C. | Connection: 3/4 face seal female | Purge ports: inlet side
AP3700SFV12FV120BType: N.C. | Connection: 3/4 face seal female | Purge ports: outlet side
AP3700SFV12FV12MBType: N.C. | Connection: 3/4 face seal female | Purge ports: inlet and outlet
AP3700SMV12MV1200Type: N.C. | Connection: 3/4 face seal male | Purge ports: none
AP3700SMV12MV12M0Type: N.C. | Connection: 3/4 face seal male | Purge ports: inlet side
AP3700SMV12MV120BType: N.C. | Connection: 3/4 face seal male | Purge ports: outlet side
AP3700SMV12MV12MBType: N.C. | Connection: 3/4 face seal male | Purge ports: inlet and outlet
AP3700STW12TW1200Type: N.C. | Connection: 3/4 tube weld | Purge ports: none
AP3700STW12TW12M0Type: N.C. | Connection: 3/4 tube weld | Purge ports: inlet side
AP3700STW12TW120BType: N.C. | Connection: 3/4 tube weld | Purge ports: outlet side
AP3700STW12TW12MBType: N.C. | Connection: 3/4 tube weld | Purge ports: inlet and outlet
AP3708STW6TW600Type: N.O. | Connection: 3/8 tube weld | Purge ports: none
AP3708STW6TW6M0Type: N.O. | Connection: 3/8 tube weld | Purge ports: inlet side
AP3708STW6TW60BType: N.O. | Connection: 3/8 tube weld | Purge ports: outlet side
AP3708STW6TW6MBType: N.O. | Connection: 3/8 tube weld | Purge ports: inlet and outlet
AP3708SFV8FV800Type: N.O. | Connection: 1/2 face seal female | Purge ports: none
AP3708SFV8FV8M0Type: N.O. | Connection: 1/2 face seal female | Purge ports: inlet side
AP3708SFV8FV80BType: N.O. | Connection: 1/2 face seal female | Purge ports: outlet side
AP3708SFV8FV8MBType: N.O. | Connection: 1/2 face seal female | Purge ports: inlet and outlet
AP3708SMV8MV800Type: N.O. | Connection: 1/2 face seal male | Purge ports: none
AP3708SMV8MV8M0Type: N.O. | Connection: 1/2 face seal male | Purge ports: inlet side
AP3708SMV8MV80BType: N.O. | Connection: 1/2 face seal male | Purge ports: outlet side
AP3708SMV8MV8MBType: N.O. | Connection: 1/2 face seal male | Purge ports: inlet and outlet
AP3708STW8TW800Type: N.O. | Connection: 1/2 tube weld | Purge ports: none
AP3708STW8TW8M0Type: N.O. | Connection: 1/2 tube weld | Purge ports: inlet side
AP3708STW8TW80BType: N.O. | Connection: 1/2 tube weld | Purge ports: outlet side
AP3708STW8TW8MBType: N.O. | Connection: 1/2 tube weld | Purge ports: inlet and outlet
AP3708SFV12FV1200Type: N.O. | Connection: 3/4 face seal female | Purge ports: none
AP3708SFV12FV12M0Type: N.O. | Connection: 3/4 face seal female | Purge ports: inlet side
AP3708SFV12FV120BType: N.O. | Connection: 3/4 face seal female | Purge ports: outlet side
AP3708SFV12FV12MBType: N.O. | Connection: 3/4 face seal female | Purge ports: inlet and outlet
AP3708SMV12MV1200Type: N.O. | Connection: 3/4 face seal male | Purge ports: none
AP3708SMV12MV12M0Type: N.O. | Connection: 3/4 face seal male | Purge ports: inlet side
AP3708SMV12MV120BType: N.O. | Connection: 3/4 face seal male | Purge ports: outlet side
AP3708SMV12MV12MBType: N.O. | Connection: 3/4 face seal male | Purge ports: inlet and outlet
AP3708STW12TW1200Type: N.O. | Connection: 3/4 tube weld | Purge ports: none
AP3708STW12TW12M0Type: N.O. | Connection: 3/4 tube weld | Purge ports: inlet side
AP3708STW12TW120BType: N.O. | Connection: 3/4 tube weld | Purge ports: outlet side
AP3708STW12TW12MBType: N.O. | Connection: 3/4 tube weld | Purge ports: inlet and outlet

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