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PTFE Gas Filter for High Withstanding Pressure STF-3000 Series

  • High Efficiency Filtration
    Stable efficiency filtration with two-layer filtration film made of PTFE with little stretches by aging or vibration. 0.003μm particle capture test conducted by nucleus particle counter for all products.
  • Low Pressure Loss
    High flow rate and low pressure loss by PTFE’s two-layer structure and high hole rate.
  • High Corrosion Resistance
    Fluorine resin used for element film, element support, O-ring etc., while SUS316L used for housing and every gas contacting part polished to R max 0.5μm and passivation process .
Filtration Accuracy 0.003μm
Recommended Flow RateSTF-2…40ℓ/min,STF-3…150ℓ/min
Housing Design Pressure20.68MPa (3,000PSIG,210kgf/㎠) at 20℃
Max. Operating Pressure0.98MPa(142PSIG)at20℃
Back Pressure Resistance0.07MPa(10.15PSIG)at20℃
Max. Operating Temperature120℃
External Leakage2×10-11Pa・m3/sec or less
Materials Housing: SUS316L
Roughness: Rmax0.5μm or less
Element/O-ring: PTFE
Element support: PFA
Joint1/4”, 3/8”, 1/2” Gasket seal, Compression seal, and others

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ModelA(mm)B(mm) D(mm) E(inch) F(mm) H(mm)
STF-2-02VR-300015.5 53.0 Hex.21 1/4 φ23.5 84.0
STF-2-02SW-3000 10.0 53.0 Hex.21 1/4φ23.5 73.0
STF-3-02VR-300015.5 96.0 Hex.30 1/4 φ32.5 127.0
STF-3-02SW-300010.0 96.0 Hex.30 1/4φ32.5 116.0
STF-3-03VR-3000 19.0 96.0 Hex.30 3/8 φ32.5 134.0
STF-3-03SW-3000 12.0 96.0 Hex.30 3/8 φ32.5 120.0
STF-3-04VR-300015.5 96.0 Hex.30 1/2 φ32.5 134.0

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