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Tube Fitting End
Stainless Steel Low-Pressure Pneumatic Diaphragm Valve 1/4 in. Tube Fitting
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product description


Technical Specifications
Connection Size(in.)1/4"3/8",1/2"3/4"
Flow Coefficient(Cv)0.270.71.7
Maximum working pressure250psi (17.2bar)
Working TemperaturePCTFE-40℃-80℃(-40℉-176℉)
PFA,Vespel®-26℃-177℃ (-15℉-350℉)
Internal/External Leak Rate≤1×10−9-std cm3/s(He)

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Ordering

Number

Port Size

in.

Operating(Normally)Dimensions,mm
ABCDEFG

QSGF-4C

1/4

CLOSE

48.0

11.0

67.0

40.025.026.025.4

QSGF-4O

1/4

OPEN

48.0

11.0

67.0

40.025.026.025.4

QSGF-6C

3/8

CLOSE

64.0

16.0

84.0

55.036.036.028.0

OSGF-6O

3/8

OPEN

64.0

16.0

77.5

55.036.026.028.0

QSGF-8C

1/2

CLOSE

64.0

16.0

84.0

55.036.036.028.0
QSGF-8O1/2OPEN64.016.077.555.036.036.028.0


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Advantage
  • Precision-Engineered
    Expertly crafted for superior leak-proof performance and extended service life.
  • High-Pressure Rated
    Robust construction guarantees reliable operation in high-pressure environments.
  • Corrosion Resistant
    Manufactured from premium stainless steel to withstand corrosive media.
  • Fully Interchangeable
    Standard dimensions ensure seamless replacement with major international brands.
  • Rigorously Tested
    Every product is stringently inspected under our ISO9001 quality system.
  • Versatile Applications
    Suitable for a wide range of industries, from semiconductors to biopharma.
  • Premium Materials
    High-grade stainless steel core components ensure integrity from the start.
  • Globally Proven
    Trusted by customers worldwide for proven performance and reliability.