Skip Content

Automatic Vent Valve,1/4 in. NPT close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
How can we improve our Product Images?

Automatic Vent Valve, 1/4 in. NPT

WATTS

Price: $12.41 / each

Please sign in or register to access lists

  • 5.0 Stars
  • 5.0 of 5
  • 1 review
  • Write a Review
  • Ask & Answer
  • Item # 4A821
  • Mfr. Model # FV-4-1/4
  • NSN # 5340-01-495-1787
  • UNSPSC # 40141727
  • Catalog Page # 3767
  • Shipping Weight 0.3 lbs.
Country of Origin USACountry of Origin is subject to change.

Technical Specs

  • ItemAutomatic Vent Valve
  • Inlet Size1/4"
  • Body MaterialBrass
  • Connection TypeMNPT
  • Float MaterialPolyethylene
  • Max. Pressure150 psi
  • Min. Pressure1.45 psi
  • Temp. Range33 Degrees to 240 Degrees F
  • Vent Dia.1-1/4"
  • Vent Height3-1/8"
How can we improve our Product Specifications?

Compliance and Restrictions

    Alternate Search Terms


    Rated 5 out of 5 by 1reviewer.
    Rated 5 out of 5 by Works great. I have a small air leak before my pool pump that allows my filter to fill with air over time. Now, the system just evacuates the air on its own and I no longer have to go manually discharge the air with the valve at the top of the filter.It took 5 minutes and a few dollars worth of brass connectors to install. August 19, 2013
    1-1 of 1

    Product Reviews Disclaimer:
    Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.

    Product Q&A

    (1 Question : 1 Answer)

    Ask your questions. Share your answers.

     
     
    « Back
     
     
    I need to bleed my #2 oil generator every start up will this work with diesel fuel or do you have some other devise that is self bleeding that will,,thanks john
    5 months, 1 week ago
    by
    Read all my Q&A
     
    Please wait while more information about moee is loaded.
    Additional information about moee could not be loaded.
    0points
    0out of 0found this question helpful.
    Was this helpful?helpful0unhelpful0
    1 Person needs an answerI have this question too

    Answers

    Answer: 
    This item has no FM approval and would not be a good choice for deisel fule contact, unfortunately Grainger does not have an air vent which is approved for flammables at this time.
    5 months, 1 week ago
    by
    Read all my Q&A
     
    Please wait while more information about ChrisO is loaded.
    Additional information about ChrisO could not be loaded.
    0points
    0out of 0found this answer helpful.
    Was this helpful?helpful0unhelpful0
    1 of 1
    1 of 1