
A31512 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $11.50 | Condition is New, JB JUST BETTER A31512 1/8" MPT RUN TEE, FREE SHIPPING | 100.0% |
![]() | $12.26 | Condition is New, 1/4" SAE DualTEE Connector w/Cap & Valve Core x 1/8 MPT, JB INDUSTRIES, A31512, shipping cost = $8.60 | 99.4% |
![]() | $20.39 | Top Pick! Condition is New, Jb Industries A31512 1/4" Access Valve Branch Tee, Pk3, shipping cost = $5.00 | 99.8% |
![]() | $62.30 | Condition is New, JB Industries A31512 Run Tee 1/8 Inch OD MPT Brass, FREE SHIPPING | ![]() |
![]() | $69.00 | Condition is New, Lot Of 15 Jb Industries A31512 1/4" Access Valve Branch Tee, 5 Pk3, shipping cost = $6.00 | 100.0% |

The JB A31512 1/4 Dual Tee Connector Cap Valve Core 1/8 MPT is a versatile component designed for use in various fluid connection applications. This connector cap valve core is engineered to fit 1/4 inch Dual Tee connectors and is compatible with 1/8 MPT threaded fittings.
The valve core is made of high-quality brass material, which ensures durability and resistance to corrosion. Its brass construction also provides excellent heat conductivity, making it an ideal choice for applications involving thermal fluids.
The valve core features a built-in cap design, which securely covers the valve stem when not in use, preventing contamination and ensuring a leak-free connection. The cap is also O-ring sealed to provide an extra layer of protection against leaks.
The valve core comes with a valve stem that operates with a quarter turn action, making it easy to open and close with minimal effort. The valve stem is also equipped with a locking mechanism to ensure a secure position when the valve is in the open or closed position.
The JB A31512 1/4 Dual Tee Connector Cap Valve Core 1/8 MPT is suitable for use in various industries, including automotive, HVAC, industrial, and laboratory applications. It can be used for controlling fluid flow in systems that require manual isolation, such as cooling systems, hydraulic systems, and lubrication systems.
Overall, the JB A31512 1/4 Dual Tee Connector Cap Valve Core 1/8 MPT is a reliable and effective component for managing fluid connections in a wide range of applications. Its durable brass construction, easy-to-use valve stem, and secure cap design make it a top choice for professionals and DIY enthusiasts alike.
The JB A31512 1/4 Dual Tee Connector Cap Valve Core 1/8 MPT is a component used in various fluid system applications for controlling and isolating fluid flow. Here are some potential pros and cons of buying this product:
Pros:1. Versatile: The JB A31512 is suitable for a wide range of applications, including hydraulic and pneumatic systems, due to its 1/8 MPT thread connection.
2. Durable: The cap valve core is made from brass, which is known for its strength and resistance to corrosion, ensuring long-lasting performance.
3. Easy to use: The cap valve design allows for easy operation, making it a convenient choice for applications that require frequent flow control.
4. Leak-free: The O-ring seal on the valve core helps prevent leakage, ensuring reliable performance and minimizing fluid loss.
Cons:1. Limited flow control: The JB A31512 is a single-port valve, which means it only allows flow in one direction at a time. For applications that require bidirectional flow control, a different type of valve may be necessary.
2. Requires regular maintenance: The O-ring seal may need to be replaced periodically to maintain a leak-free seal, which can add to the overall maintenance costs.
3. Limited compatibility: The JB A31512 is designed for 1/8 MPT connections, so it may not be compatible with other thread sizes or connection types.
In conclusion, the JB A31512 1/4 Dual Tee Connector Cap Valve Core 1/8 MPT is a reliable and durable component for controlling and isolating fluid flow in various applications. Its ease of use and leak-free design make it a convenient choice for many fluid system applications. However, its limited flow control capabilities and the need for regular maintenance may be drawbacks for some users. Ultimately, the decision to purchase this product depends on the specific requirements of the application and the user's budget and maintenance capabilities. If the application requires bidirectional flow control or a different thread size, alternative valve options may be necessary.
Details:
Both of the 1/4 male flare fittings are threaded internally for a valve core but only one and cap is included. 1/4 male flare with cap valve core x flare 1/8 pipe thread. The 1/8 male pipe fitting is on the run side of tee as pictured.
specifications maxohvac:
- brand: Jb Industries
- mpn: A31512
- part type: Connector Cap Valve
- upc: 684520315129
offer maxohvac:
- in stock #: 5
- prices: $11.50–$69.00
- item condition: New
- started: march 23, 2026
- options: ship-to-home
- availability: in stock
- sold #: 7
seller maxohvac:
- rating: 99.4%
- city: hartford, wisconsin
- # reviews: 150995
shipping maxohvac:
- transit: 3-7 days
- class: standard, expedited, economy
- carrier: usps, ups
- service: usps ground advantage, usps priority mail, usps priority mail express, ups ground saver
- type: calculated
payments maxohvac:
- other
- wallet: paypal
- credit card: discover
returns maxohvac:
- policy: no returns
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
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