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Accessories 337 Micrometer Flow Control Valves, 1/8" to 3/4" Ports

Brand: Parker ORIGA Corporation

The “337” Series Flow Control Valves meter flow of air in one direction and allow free flow in the reverse direction.

Valves are manufactured with a fine tapered needle providing precise flow control, even at low flow rates. 

The perimeter of the adjustment knob features numerical micrometer position markings providing a visual indication of the setting. 

Once the desired flow is selected, a set screw can be tightened to maintain the setting.

These valves are available with NPTF ports in 1/8", 1/4", 3/8", 1/2", and 3/4" sizes. 

This series is recommended for pneumatic service.

1 - 12 of 12 Part Numbers
003371000
003371000
PARKER ORIGA NPT - Port Size 1/8"
Port size - 1/8"

  • Flow (SCFM †)
    • Adj. - 15
    • Free flow - 32
  • A - 9/16"
  • B - 0.75
  • C - 1.47
  • H1 - 2.03
  • H2 - 1.81
† At 100 PSIG inlet pressure with full pressure drop.

003371001
003371001
PARKER ORIGA NPT - Port Size 1/4"
Port size - 1/4"

  • Flow (SCFM †)
    • Adj. - 28
    • Free flow - 75
  • A - 11/16"
  • B - 0.75
  • C - 1.47
  • H1 - 2.28
  • H2 - 2.03

† At 100 PSIG inlet pressure with full pressure drop.
003371002
003371002
PARKER ORIGA NPT - Port Size 3/8"
Port size - 3/8"

  • Flow (SCFM †)
    • Adj. - 59
    • Free flow - 139
  • A - 7/8"
  • B -  0.88
  • C - 2.31
  • H1 - 2.84
  • H2 - 2.53

† At 100 PSIG inlet pressure with full pressure drop.
003371003
003371003
PARKER ORIGA NPT - Port Size 1/2"
Port size - 1/2"

  • Flow (SCFM †)
    • Adj. - 126
    • Free flow - 183
  • A - 1-3/16"
  • B - 1.06
  • C - 3.25
  • H1 - 3.62
  • H2 - 3.22

† At 100 PSIG inlet pressure with full pressure drop.
003371004
003371004
PARKER ORIGA NPT - Port Size 3/4"
Port size - 3/4"

  • Flow (SCFM †)
    • Adj. - 140
    • Free flow - 327
  • A - 1-3/8"
  • B - 1.06
  • C - 3.25
  • H1 - 3.72
  • H2 - 3.31

† At 100 PSIG inlet pressure with full pressure drop.
003378000
003378000
PARKER ORIGA Service Kits NPT/BSPP - Port Size 1/8"
Port size - 1/8"

  • Flow (SCFM †)
    • Adj. - 15
    • Free flow - 32
  • A - 9/16"
  • B - 0.75
  • C - 1.47
  • H1 - 2.03
  • H2 - 1.81
† At 100 PSIG inlet pressure with full pressure drop.
003378001
003378001
PARKER ORIGA Service Kits NPT/BSPP - Port Size 1/4"
Port size - 1/4"

  • Flow (SCFM †)
    • Adj. - 28
    • Free flow - 75
  • A - 11/16"
  • B - 0.75
  • C - 1.47
  • H1 - 2.28
  • H2 - 2.03

† At 100 PSIG inlet pressure with full pressure drop.
003378002
003378002
PARKER ORIGA Service Kits NPT - Port Size 3/8"
Port size - 3/8"

  • Flow (SCFM †)
    • Adj. - 59
    • Free flow - 139
  • A - 7/8"
  • B -  0.88
  • C - 2.31
  • H1 - 2.84
  • H2 - 2.53

† At 100 PSIG inlet pressure with full pressure drop.
003378003
003378003
PARKER ORIGA Service Kits NPT - Port Size 1/2"
Port size - 1/2"

  • Flow (SCFM †)
    • Adj. - 126
    • Free flow - 183
  • A - 1-3/16"
  • B - 1.06
  • C - 3.25
  • H1 - 3.62
  • H2 - 3.22

† At 100 PSIG inlet pressure with full pressure drop.
003378004
003378004
PARKER ORIGA Service Kits NPT - Port Size 3/4"
Port size - 3/4"

  • Flow (SCFM †)
    • Adj. - 140
    • Free flow - 327
  • A - 1-3/8"
  • B - 1.06
  • C - 3.25
  • H1 - 3.72
  • H2 - 3.31

† At 100 PSIG inlet pressure with full pressure drop.
00337G1000
00337G1000
PARKER ORIGA BSPP - Port Size 1/8"
Port size - 1/8"

  • Flow (SCFM †)
    • Adj. - 15
    • Free flow - 32
  • A - 9/16"
  • B - 0.75
  • C - 1.47
  • H1 - 2.03
  • H2 - 1.81
† At 100 PSIG inlet pressure with full pressure drop.

00337G1001
00337G1001
PARKER ORIGA BSPP - Port Size 1/4"
Port size - 1/4"

  • Flow (SCFM †)
    • Adj. - 28
    • Free flow - 75
  • A - 11/16"
  • B - 0.75
  • C - 1.47
  • H1 - 2.28
  • H2 - 2.03
† At 100 PSIG inlet pressure with full pressure drop.
1 - 12 of 12 Part Numbers

Specifications

Maximum Operating Pressure

  • 250 psig
  • Cracking Pressure for return check poppet 1 to 2 psig

Operating Temperature

  • Ambient Temperatures below freezing Require moisture-free Air. Ambient Temperatures below freezing and above 180° Require lubricants especially selected for suitability at these Temperatures. Pneumatic valves should be used with filtered and lubricated Air.

Operating Temperature (Standard)

  • 0° F to 180° F

Operating Temperature (Extended)

  • 0° F to 300° F (Consult factory)
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