• SMC AK12PA Air-Operated General Gas Regulator (High Flow, Tied Diaphragm)
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SMC AK12PA Air-Operated General Gas Regulator (High Flow, Tied Diaphragm)

SMC AK12PA Air-Operated General Gas Regulator (High Flow, Tied Diaphragm)

SMC AK12PA series air-operated tied-diaphragm general gas regulator in stainless steel or brass for high flow (below 800 slpm).

Key features

  • Air-operated (dome-loaded) set point: pilot air sets outlet pressure 0.05-1.0 MPa; pilot air isolated from process gas by a double seal
  • Stainless steel (SUS316) or brass body for general and specialty gases; Ni-Cr-Mo internals available for corrosive gases
  • Inlet up to 1700 psig (11.7 MPa), HR option 20.7 MPa; flow below 800 slpm, HF below 1000 slpm
  • NPT1/4 to 1/2 female or 1/4 to 1/2 compression fitting connections
  • 2P, 3P bodies (stainless) and 4PL, 5PC bodies (stainless or brass)
  • Listed codes: gauge ports "0" (NPT1/4 port, no gauge); gauges (V3 to 40), plug C, MPA scale, VS/PK/TF seat and panel mount (P) are ordered as suffixes

Specifications

Fluid Gases that do not corrode wetted parts
External leakage 1x10^-10 Pa m3/s
Ambient and fluid temperature -40 to 71 C (no freezing)
Port connection NPT female thread or compression fitting
Set pressure 7-150 psig (0.05-1.0 MPa)
Max. pilot pressure 150 psig (1.0 MPa)
Pilot port NPT1/8
Inlet pressure Vacuum to 11.7 MPa (HR 20.7 MPa)
Internal volume 21.6 cm3
Source SMC Korea catalog Process Gas Equipment (SMCKR_AP_SL_AZ_AK_BP.pdf), p. 750-751
AK12PAB4PL4400 Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/4 female
AK12PAB4PL6600 Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT3/8 female
AK12PAB4PL8800 Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/2 female
AK12PAB4PL4T4T00 Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/4 compression fitting
AK12PAB4PL6T6T00 Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 3/8 compression fitting
AK12PAB4PL8T8T00 Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/2 compression fitting
AK12PAB5PC44000 Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/4 female
AK12PAB5PC66000 Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT3/8 female
AK12PAB5PC88000 Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/2 female
AK12PAB5PC4T4T000 Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/4 compression fitting
AK12PAB5PC6T6T000 Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 3/8 compression fitting
AK12PAB5PC8T8T000 Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/2 compression fitting
AK12PAS2P44 Material: SUS316 | Ports: 2 ports | Connection: NPT1/4 female
AK12PAS2P66 Material: SUS316 | Ports: 2 ports | Connection: NPT3/8 female
AK12PAS2P88 Material: SUS316 | Ports: 2 ports | Connection: NPT1/2 female
AK12PAS2P4T4T Material: SUS316 | Ports: 2 ports | Connection: 1/4 compression fitting
AK12PAS2P6T6T Material: SUS316 | Ports: 2 ports | Connection: 3/8 compression fitting
AK12PAS2P8T8T Material: SUS316 | Ports: 2 ports | Connection: 1/2 compression fitting
AK12PAS3P440 Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: NPT1/4 female
AK12PAS3P660 Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: NPT3/8 female
AK12PAS3P880 Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: NPT1/2 female
AK12PAS3P4T4T0 Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: 1/4 compression fitting
AK12PAS3P6T6T0 Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: 3/8 compression fitting
AK12PAS3P8T8T0 Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: 1/2 compression fitting
AK12PAS4PL4400 Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/4 female
AK12PAS4PL6600 Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT3/8 female
AK12PAS4PL8800 Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/2 female
AK12PAS4PL4T4T00 Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/4 compression fitting
AK12PAS4PL6T6T00 Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 3/8 compression fitting
AK12PAS4PL8T8T00 Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/2 compression fitting
AK12PAS5PC44000 Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/4 female
AK12PAS5PC66000 Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT3/8 female
AK12PAS5PC88000 Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/2 female
AK12PAS5PC4T4T000 Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/4 compression fitting
AK12PAS5PC6T6T000 Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 3/8 compression fitting
AK12PAS5PC8T8T000 Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/2 compression fitting
AK12PASH2P44 Material: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: NPT1/4 female
AK12PASH2P66 Material: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: NPT3/8 female
AK12PASH2P88 Material: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: NPT1/2 female
AK12PASH2P4T4T Material: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: 1/4 compression fitting
AK12PASH2P6T6T Material: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: 3/8 compression fitting
AK12PASH2P8T8T Material: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: 1/2 compression fitting
AK12PASH3P440 Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: NPT1/4 female
AK12PASH3P660 Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: NPT3/8 female
AK12PASH3P880 Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: NPT1/2 female
AK12PASH3P4T4T0 Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: 1/4 compression fitting
AK12PASH3P6T6T0 Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: 3/8 compression fitting
AK12PASH3P8T8T0 Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: 1/2 compression fitting
AK12PASH4PL4400 Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/4 female
AK12PASH4PL6600 Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT3/8 female
AK12PASH4PL8800 Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/2 female
AK12PASH4PL4T4T00 Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/4 compression fitting
AK12PASH4PL6T6T00 Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 3/8 compression fitting
AK12PASH4PL8T8T00 Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/2 compression fitting
AK12PASH5PC44000 Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/4 female
AK12PASH5PC66000 Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT3/8 female
AK12PASH5PC88000 Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/2 female
AK12PASH5PC4T4T000 Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/4 compression fitting
AK12PASH5PC6T6T000 Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 3/8 compression fitting
AK12PASH5PC8T8T000 Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/2 compression fitting
RegulatorsSMC
60 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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SMC AK12PA Air-Operated General Gas Regulator (High Flow, Tied Diaphragm)

Brand SMC·Regulators

Available part numbers (60)

AK12PAB4PL4400, AK12PAB4PL6600, AK12PAB4PL8800, AK12PAB4PL4T4T00, AK12PAB4PL6T6T00, AK12PAB4PL8T8T00, AK12PAB5PC44000, AK12PAB5PC66000, AK12PAB5PC88000, AK12PAB5PC4T4T000 + 50 more — see full table ↓

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Product codes & specifications
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Product codeSpec
AK12PAB4PL4400Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/4 female
AK12PAB4PL6600Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT3/8 female
AK12PAB4PL8800Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/2 female
AK12PAB4PL4T4T00Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/4 compression fitting
AK12PAB4PL6T6T00Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 3/8 compression fitting
AK12PAB4PL8T8T00Material: Brass body | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/2 compression fitting
AK12PAB5PC44000Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/4 female
AK12PAB5PC66000Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT3/8 female
AK12PAB5PC88000Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/2 female
AK12PAB5PC4T4T000Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/4 compression fitting
AK12PAB5PC6T6T000Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 3/8 compression fitting
AK12PAB5PC8T8T000Material: Brass body | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/2 compression fitting
AK12PAS2P44Material: SUS316 | Ports: 2 ports | Connection: NPT1/4 female
AK12PAS2P66Material: SUS316 | Ports: 2 ports | Connection: NPT3/8 female
AK12PAS2P88Material: SUS316 | Ports: 2 ports | Connection: NPT1/2 female
AK12PAS2P4T4TMaterial: SUS316 | Ports: 2 ports | Connection: 1/4 compression fitting
AK12PAS2P6T6TMaterial: SUS316 | Ports: 2 ports | Connection: 3/8 compression fitting
AK12PAS2P8T8TMaterial: SUS316 | Ports: 2 ports | Connection: 1/2 compression fitting
AK12PAS3P440Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: NPT1/4 female
AK12PAS3P660Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: NPT3/8 female
AK12PAS3P880Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: NPT1/2 female
AK12PAS3P4T4T0Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: 1/4 compression fitting
AK12PAS3P6T6T0Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: 3/8 compression fitting
AK12PAS3P8T8T0Material: SUS316 | Ports: 3 ports (OUT gauge) | Connection: 1/2 compression fitting
AK12PAS4PL4400Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/4 female
AK12PAS4PL6600Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT3/8 female
AK12PAS4PL8800Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/2 female
AK12PAS4PL4T4T00Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/4 compression fitting
AK12PAS4PL6T6T00Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 3/8 compression fitting
AK12PAS4PL8T8T00Material: SUS316 | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/2 compression fitting
AK12PAS5PC44000Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/4 female
AK12PAS5PC66000Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT3/8 female
AK12PAS5PC88000Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/2 female
AK12PAS5PC4T4T000Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/4 compression fitting
AK12PAS5PC6T6T000Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 3/8 compression fitting
AK12PAS5PC8T8T000Material: SUS316 | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/2 compression fitting
AK12PASH2P44Material: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: NPT1/4 female
AK12PASH2P66Material: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: NPT3/8 female
AK12PASH2P88Material: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: NPT1/2 female
AK12PASH2P4T4TMaterial: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: 1/4 compression fitting
AK12PASH2P6T6TMaterial: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: 3/8 compression fitting
AK12PASH2P8T8TMaterial: SUS316, Ni-Cr-Mo poppet | Ports: 2 ports | Connection: 1/2 compression fitting
AK12PASH3P440Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: NPT1/4 female
AK12PASH3P660Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: NPT3/8 female
AK12PASH3P880Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: NPT1/2 female
AK12PASH3P4T4T0Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: 1/4 compression fitting
AK12PASH3P6T6T0Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: 3/8 compression fitting
AK12PASH3P8T8T0Material: SUS316, Ni-Cr-Mo poppet | Ports: 3 ports (OUT gauge) | Connection: 1/2 compression fitting
AK12PASH4PL4400Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/4 female
AK12PASH4PL6600Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT3/8 female
AK12PASH4PL8800Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: NPT1/2 female
AK12PASH4PL4T4T00Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/4 compression fitting
AK12PASH4PL6T6T00Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 3/8 compression fitting
AK12PASH4PL8T8T00Material: SUS316, Ni-Cr-Mo poppet | Ports: 4 ports (OUT extra + OUT gauge) | Connection: 1/2 compression fitting
AK12PASH5PC44000Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/4 female
AK12PASH5PC66000Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT3/8 female
AK12PASH5PC88000Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: NPT1/2 female
AK12PASH5PC4T4T000Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/4 compression fitting
AK12PASH5PC6T6T000Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 3/8 compression fitting
AK12PASH5PC8T8T000Material: SUS316, Ni-Cr-Mo poppet | Ports: 5 ports (extra, IN, OUT gauge) | Connection: 1/2 compression fitting

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