Shop by Species

Build a Vacuum Press!

    Build Your Own Vacuum Press Monthly Newsletter

Check Valve - Heavy Duty



Customer Rating:


Product Description

Our check valves are designed for the utmost reliability and flow coefficient. These are ideal for use in vacuum press systems because of the optimized cross-drilled poppet design and the light-weight poppet spring we have selected. Despite the reasonable price, these brass-body check valves are surprisingly durable and have been included in some of our vacuum kits for nealy two decades.

Available in three styles:

  • 1/4" NPT Male to Male - $13.45
  • 1/4" NPT Female to Male * - $13.45
  • 3/8" NPT Female to Male * - $17.95
* The flow direction is from the female threaded side to the male threaded side.


The 3/8" NPT version of our check valve is designed exclusively for our V4 Premium vacuum press system and uses a different style of poppet than shown in the picture above.

pg-warning-yellow.jpg WARNING: This product can expose you to chemicals, including lead, which are known to the state of California to cause cancer and birth defects or other reproductive harm. For more information visit

By ordering this product, you acknowledge that it will not be used for installation in a system that is intended to convey or dispense water for human consumption through drinking or cooking.

Product Reviews

  1. Small But Effective

    Review by Barry Novak

    This is a unique item and would be difficult to find elsewhere. I purchased a vacuum pump from a surplus outlet and copied the fitting setup from the pumps on Veneer Supplies. This item is valuable to maintain the vacuum so the pump doesn't have to run continuously. The small form factor helps to reduce the size of the fitting grouping as I'm always trying to reduce size and weight of my equipment. This is so cool that I should have bought two.

  2. Great Check Valve at a Great Price

    Review by Eric Arnsdorff

    Works exactly as it should. Like all of the fittings and valves that I ordered from this site, the price is unbeatable and it works exactly as it should.

  3. Vac Table Use

    Review by Marc Lagerway

    I ordered two of these for my vacuum table I use on a CNC Vertical Mill. The best product I have found and like most items I have purchased here, top quality and fast delivery.

  4. Great Product

    Review by Louis Prugh

    This is an excellent product at a great price. I shopped around and found this to be the lowest price that I could find.

  5. Quality Check Valve

    Review by Joey Lebow

    Vacuum rated check valves are hard to find. Check valves that don't leak are even harder. This valve keeps my buffer tank under vacuum for days at a time. This check valve is needed because my pump vents to atmosphere when the controller turns it off. Tip: The arrow on the body is the direction that air is supposed to flow. Point it toward the vacuum pump.

  6. Nice Part

    Review by Bill Simpson

    Nice part, compact, holds vacuum well, reasonable price.

  7. Highly Recommended

    Review by Dale Arnett

    Very good product, with a good price. Fast a friendly service. They let me know as soon as the unit shipped and had FedEx keep me up to date on when it would arrive.

  8. Excellent!

    Review by Aaron Nicholson

    I tested this by using my 1/2 hp 5CFM 2 stage vacuum by having it on my vacuum chamber's expel line. I left the line open and left the pressure on this check valve for around 4 to 5 days straight, and there was no loss in vacuum pressure for the entire time. Excellent!

  9. Review from Marietta Georgia

    Review by John Galczynski

    Tighter than a drum - this check valve works great. And, it pays for itself. Run time on the vacuum pump dropped to way low usage while this check valve protects the vacuum level for the automatic vacuum switch to do its job.
    ***** Happy Camper *****

  10. Solid Construction, Durable, and Reliable

    Review by Russell Davis

    The check valve works flawlessly. I built an onboard air system for my GMC truck and the valve has performed above expectations.

    Solid construction, durable, and reliable - qualities usually lost in modestly priced fittings can be expected from this product....recommended this item and this seller to others seeking this product.

    In all - very satisfied with product, price, seller, service - all around - GREAT.

How would you rate this product?

Share your comments in the space below.
Minimum review length is 150 characters. Your total is 0.

Enter a short title for your review. (optional)

What is your first and last name? (both are required)
Enter the code below.

Security Check:

                   Reviews are subject to our terms and conditions.

Review Suggestions:
Was your order shipped timely and affordably?
Did the item arrive safely?
Did this item exceed your expectations?
Is website description accurate and fair?
Would you recommend this product to a friend?
Did Joe answer any questions about this product for you?

Shipping Discounts

    Reduced Shipping Rates In Effect

Your Wish List

Want to save this item for later? Click the button below to add this item to your wish list.