0 ratings
Gas Air Compressor Unloader Check Valve Combo 145-175 PSI 3/4 Inlet & Outlet
Gas Air Compressor Unloader Check Valve Combo 145-175 PSI 3/4 Inlet & Outlet
Gas Air Compressor Unloader Check Valve Combo 145-175 PSI 3/4 Inlet & Outlet
Gas Air Compressor Unloader Check Valve Combo 145-175 PSI 3/4 Inlet & Outlet
Brand new continuous run air compressor piloted discharge check valve.
Gas Air Compressor Unloader Check Valve Combo 145-175 PSI 3/4" Inlet & Outlet

Item #: 18455454

Gas Air Compressor Unloader Check Valve Combo 145-175 PSI 3/4" Inlet & Outlet

Item #: 18455454

LAK 2050243

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store

QTY:

Order now and get it around Wednesday, September 09
Our Top Logistics Partners
  • fedex
  • dhl
Brand new continuous run air compressor piloted discharge check valve.
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified


paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

High Pressure Rating
Operates efficiently between 145-175 PSI, providing reliable performance for various applications while ensuring safe and optimal output pressure for users.
Durable Construction
Engineered with robust materials for longevity, this check valve combo withstands wear and tear, reducing the need for frequent replacements and enhancing overall value.
Easy Installation
Designed with a 3/4" inlet and outlet, this combo offers seamless integration into existing systems, allowing users to quickly set up without specialized tools or plumbing skills.

Product Details

Shop Gas Air Compressor Unloader Check Valve Combo 145-175 PSI 3/4 Inlet & Outlet online at a best price in Laos. B01N37U7EN
  • Brand new continuous run air compressor piloted discharge check valve
  • Features a 3/4 Compression inlet x 3/4 NPT Male thread outlet
  • Combination valve includes a pilot valve, pressure discharge valve, and a check valve in one piece
  • 3/4 NPT Male Pipe Thread Outlet To Tank & 3/4 Compression Thread Inlet For 3/4 Copper Tubing
  • 1/8 NPT Female Pipe Thread Port For Throttle Control
  • Factory Set At 145 Psi Cut In & 175 Psi Cut Out Pressure - Pressure Can Be Adjusted 30-40 Psi Up or Down
Brand NameEi
Model NumberNG-40-M-145-175
Unit Count1 Count
ManufacturerConrador
UPC724453990274
Included ComponentsElectric motor
Number of Pieces1
Manufacturer Part NumberNG-40-M-145-175
Material TypeCopper
Exterior FinishBrass
Inlet Connection TypeCompression
Outlet Connection TypeNPT
Maximum Pressure175 psi
Number of Ports3
Thread Size0.75 inches (1.9 cm)
Thread TypeTapered
Connector TypeCompression, NPT
Valve TypePiloted Discharge Check Valve with Unloader Valve
Inlet Connection Size0.75 inches (1.9 cm)
Outlet Connection Size0.75 inches (1.9 cm)
Size0.75 inches (1.9 cm)
Specification MetASTM, ASME B16.5
MaterialCopper
BrandEi
Maximum Operating Pressure175 psi
Item Weight1.5 lbs (680 grams)

Who Should Buy?

Suitable For
  • HVAC Professionals

    Ideal for HVAC technicians needing reliable operation in air compressor systems to optimize efficiency and performance.

  • Manufacturing Use

    Manufacturers can benefit from enhanced pneumatic tools with consistent air supply, utilizing the valve combo effectively.

  • Automotive Mechanics

    Perfect for automotive repair shops requiring durable components for air compressor setups to handle higher PSI levels.

Not Suitable For
  • Homeowners DIY

    Casual users may struggle with installation and maintenance, leading to inefficiencies in home projects requiring air compressors.

Product Description

About This Item

Introducing the Gas Air Compressor Unloader Check Valve Combo 145-175 PSI, the perfect solution for those in need of a reliable and efficient air compressor accessory. This brand new continuous run air compressor piloted discharge check valve is designed to meet all your air compressor needs. Why settle for separate components when you can have a combination valve that includes a pilot valve, pressure discharge valve, and a check valve all in one piece? This valve is made from high-quality machined brass, ensuring durability and long-lasting performance. The 3/4 Compression inlet x 3/4 NPT Male thread outlet provides easy installation and compatibility with most air compressor systems. The valve also features a 3/4 NPT Male Pipe Thread Outlet To Tank, a 3/4 Compression Thread Inlet for 3/4 Copper Tubing, and a 1/8 NPT Female Pipe Thread Port for Throttle Control. One of the standout features of this valve is its adjustable pressure settings.

It comes factory set at 145 PSI cut in and 175 PSI cut out pressure, but can be easily adjusted 30-40 PSI up or down to suit your specific needs. With a 30 CFM rating, this valve ensures optimal airflow and performance. It is also equipped with a manual unloader flip valve at the top of the unloader, allowing for easy and efficient operation. In addition to its outstanding features, this gas air compressor unloader check valve combo is designed for convenience and ease of use. It is made in the USA, guaranteeing high-quality craftsmanship and reliability. Whether you're in the market for gas air compressor accessories or looking to replace worn-out parts, this gas air compressor unloader check valve combo is an essential addition to any air compressor system.

Don't let your compressor's pressure build up – ensure its continuous operation with this reliable and efficient valve. For all your gas air compressor needs, trust the Gas Air Compressor Unloader Check Valve Combo 145-175 PSI. Experience the convenience and performance it offers, and enjoy the peace of mind that comes with a high-quality and durable product. Buy now and maximize the potential of your air compressor system.

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is a gas air compressor unloader check valve combo used for?

    Answer: A gas air compressor unloader check valve combo is designed to manage airflow within gas-powered air compressors. It prevents backflow of air, ensuring that the compressor operates efficiently, and the unloader function reduces pressure when the compressor is shut off. This combination is vital for maintaining optimum performance and extending the life of your compressor.
  • Question: What PSI range does the Gas Air Compressor Unloader Check Valve Combo operate at?

    Answer: This combo operates within a pressure range of 145-175 PSI. This design allows it to handle various applications, from light-duty to more demanding tasks. Such a range ensures that your compressor can maintain consistent airflow for various tools and machinery while providing reliable and efficient service.
  • Question: Can I use this combo for different types of compressors?

    Answer: Yes, the Gas Air Compressor Unloader Check Valve Combo is versatile and can be used in various compressor models that meet compatible inlet and outlet size requirements. It’s particularly effective for gas-powered compressors, providing seamless integration and optimal operation across different applications, from automotive to industrial tasks.
  • Question: What are the inlet and outlet sizes for this unloader check valve combo?

    Answer: The Gas Air Compressor Unloader Check Valve Combo features a 3/4 inch inlet and outlet. This size is standard for many compressors, making it easy to integrate your new combo into your existing setup. Ensuring proper sizing is crucial for achieving maximum performance and preventing leaks.
  • Question: How does the unloader function on this check valve work?

    Answer: The unloader function operates by releasing pressure from the compressor's head when it stops running. This action helps to prevent pressure buildup in the compressor, which can lead to unnecessary wear and potential damage. Understanding this function helps users appreciate how essential it is for maintaining compressor health.
  • Question: Is installation of the check valve combo complicated?

    Answer: The installation of the Gas Air Compressor Unloader Check Valve Combo generally involves standard plumbing practices, making it straightforward for those with basic mechanical skills. Proper installation is crucial to ensure that the unloader and check valve operate correctly, optimizing your compressor's performance for various applications.
  • Question: Can this valve combo help improve compressor performance?

    Answer: Yes, using a quality unloader check valve combo like this one can significantly improve compressor performance. By preventing backflow and relieving pressure when not in use, it enhances efficiency, reduces wear, and maintains performance consistency, resulting in better overall operation, especially for demanding tasks.
  • Question: What maintenance does the gas air compressor unloader check valve require?

    Answer: Maintenance of the gas air compressor unloader check valve involves regular inspections for leaks, tightening any loose fittings, and cleaning to prevent build-up that could impair function. Following these practices ensures the valve continues to operate effectively and can prolong the lifespan of your compressor system.
  • Question: What materials are used for the construction of this combo?

    Answer: This Gas Air Compressor Unloader Check Valve Combo is typically made from durable materials such as brass or high-quality plastics, designed to withstand high pressure and resist corrosion. This robust construction ensures a long-lasting product suitable for consistent and heavy-duty use in your compressor setup.
  • Question: Where can I buy Gas Air Compressor Unloader Check Valve Combo 145-175 PSI 34 Inlet & Outlet in Laos?

    Answer: You can buy the Gas Air Compressor Unloader Check Valve Combo 145-175 PSI 3/4 Inlet & Outlet on Ubuy. Ubuy is a reliable online platform that offers a wide range of tools and equipment, ensuring you can easily find the right product for your needs.

Ei Air Compressor Replacement Parts NG-40-M-145-175 Editorial Review

The Gas Air Compressor Unloader Check Valve Combo can prove useful, depending on the user’s needs. It has a check valve, unloader valve, and pilot valve all in one. A purchaser used it to build a gas-powered compressor and commends its quality. However, a buyer complained that it leaked and received no response on trying to return the valve. Another was unhappy with its size, expecting it to be larger but noted that it does what it is expected to do. It comes with a 3/4" threaded nipple that can screw into any 3/4" hole, keeping a compressor at 145-175 PSI. The valve cannot prevent water from returning to the tank, as all air compressors generate moisture in their receiver tank when water is compressed. A pneumatic style drain is required to remove water from the tank regularly. The product has varying PSI levels but still gets the job done well. The visible discharge sound indicates when the compressor is in rest mode. It’s crucial to observe the inlet and outlet sizes when purchasing.

Customer Reviews & Ratings

94 customers ratings
  • 5 Star
    62%
  • 4 Star
    20%
  • 3 Star
    5%
  • 2 Star
    3%
  • 1 Star
    10%

Review this product

Share your thoughts with other customers

Pros

  • Has a check valve, unloader valve, and pilot valve all in one
  • Good quality
  • Affordable
  • Visible discharge sound
  • Comes with a 3/4" threaded nipple for compatibility

Cons

  • Cannot prevent water from returning to the tank

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 9250 + reviews
Read reviews
MA
Mohammad
Verified buyer

“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer

“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · via Trustpilot
K
kund
Verified buyer

“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer

“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer

“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.