
12A49 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $154.78 | Condition is Unspecified, Maxitrol 187125 - 1/2" NPT. AUTOMATIC VENT LIMITING DEVICE FOR 325-7 & 32, FREE SHIPPING | 97.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $167.89 | Condition is New, Maxitrol 187125 - 1/2" NPT. AUTOMATIC VENT LIMITING DEVICE FOR 325-7 & 32, FREE SHIPPING | 98.5% |
![]() | $206.52 | Condition is New, MAXITROL 1/2 NPT Vent Limiting Device, Brass - 12A49, FREE SHIPPING | 98.8% |
![]() | $654.25 | Condition is New, Maxitrol 325-7AL210D-1 1/4 "1.25""REG W/OVER PROTECT.DEVICE", FREE SHIPPING | 98.5% |
![]() | $710.19 | Condition is New, Maxitrol 325-7AL210D-1 1/2 "1.5""REG W/OVERPROTECT.DEVICE", FREE SHIPPING | 98.5% |
![]() | $737.25 | Top Pick! Condition is New, Maxitrol 325-7AL210D-1 1/2 1.5REG W/OVERPROTECT.DEVICE, FREE SHIPPING | ![]() |
![]() | $739.88 | Condition is New, Maxitrol 325-7AL210D-11/4 1.25"REG W/OVER PROTECT.DEVICE, FREE SHIPPING | 99.4% |
![]() | $764.06 | Condition is New, Maxitrol 325-7AL210D-11/2 1.5"REG W/OVERPROTECT.DEVICE, FREE SHIPPING | 99.4% |
![]() | $778.70 | Condition is New, Maxitrol 325-7ABL210D-1 1/4 "1.25""REG W/OVER. DEVICE IMBLUE", FREE SHIPPING | 98.5% |
![]() | $790.20 | Condition is New, Maxitrol 325-7ABL210D-1 1/2 "1.5""REG W/OVER. DEVICE IMBLUE", FREE SHIPPING | 98.5% |
![]() | $806.55 | Top Pick! Condition is New, Maxitrol 325-7ABL210D-1 1/4 1.25Reg W/Over. Device Imblue, FREE SHIPPING | ![]() |
![]() | $807.38 | Top Pick! Condition is New, Maxitrol 325-7ABL210D-1 1/2 1.5REG W/OVER. DEVICE IMBLUE, FREE SHIPPING | ![]() |
![]() | $860.00 | Condition is New, Maxitrol 325-7AL210D-1 1/2 1.5"REG W/OVERPROTECT.DEVICE, FREE SHIPPING | 100.0% |
![]() | $931.13 | Condition is New, Maxitrol 325-7ABL210D-11/2 1.5"REG W/OVER. DEVICE IMBLUE, FREE SHIPPING | 99.4% |
![]() | $956.57 | Condition is New, Maxitrol 325-7ABL210D-11/4 1.25"REG W/OVER. DEVICE IMBLUE, FREE SHIPPING | 99.4% |
![]() | $1080.00 | Condition is New, Maxitrol 325-7ABL210D-1 1/4 1.25"REG W/OVER. DEVICE IMBLUE, FREE SHIPPING | 100.0% |
![]() | $1105.00 | Condition is New, Maxitrol 325-7ABL210D-1 1/2 Maxitrol 325-7ABL210D-1 1/2 1.5"REG W/OVER. DEVICE, FREE SHIPPING | 100.0% |

The Maxitrol 12A49 1/2 NPT Automatic Vent Limiting Device is an essential safety component for various commercial and industrial applications involving the use of gas-fired heating systems. Designed and manufactured by Maxitrol, a renowned name in the HVAC industry, this vent limiting device comes with an adjusted set point to ensure the safe and efficient operation of your system. It complies with the ASME B16.20 and ANSI B16.5 standard threads, making it a universally compatible solution for 325-7 3/4 inch pipes.
This 1/2 NPT vent limiting device operates automatically by maintaining a specific pressure in the system, thereby enabling proper draft control for efficient combustion. It plays a critical role in preventing excessive pressures that could potentially cause damage to appliances, pipes, and significant safety hazards in case of over-pressurization. Furthermore, an adjustable set point allows for customization of operating pressures to suit your specific system requirements.
Built with premium materials and precision engineering, this Maxitrol device offers impressive durability, reliability, and resistance to corrosion. Its quality construction and rigorous testing enable it to excel in demanding commercial and industrial applications. An easy-to-use adjustment mechanism ensures a convenient user experience during the process of regularly recalibrating the set point in line with seasonal changes or system modifications.
Key features of the Maxitrol 12A49 1/2 NPT Automatic Vent Limiting Device include its versatility, adjustability, compatibility with various heating systems, and unwavering commitment to safety. By incorporating this device into your gas-fired heating system, you are investing in a dependable solution that safeguards your equipment, optimizes its performance, and ensures a comfortable and safe environment for your customers or end-users.
Maxitrol 12A49 1/2 NPT Automatic Vent Limiting Device: A Critical Analysis
Introduction:The Maxitrol 12A49 1/2 NPT Automatic Vent Limiting Device is a critical component in venting systems for water heaters and boilers. It automatically regulates the pressure to maintain safe operating conditions. This analysis aims to provide a clear understanding of its features, benefits, and potential drawbacks for those considering purchasing this device.
Pros:1. Safety: The automatic vent limiting device plays a crucial role in ensuring the safe operation of water heating appliances by limiting the pressure in the vent system, preventing excessive pressure buildup, and reducing the risk of potential explosions.
2. Time-saving: Manually opening a pressure relief valve to release excess pressure can be bothersome and time-consuming. An automatic vent limiting device typically requires less maintenance and allows for continuous operation without interruptions.
3. Convenient: It eliminates the need for periodic manual intervention to manually release excess pressure, providing users with the convenience of hassle-free operation.
4. Efficiency: The automatic vent limiting device ensures optimal combustion efficiency by effectively managing the venting process, reducing gas consumption, and lowering fuel bills.
Cons:1. Expenses: This device comes with an additional cost to the initial water heating appliance investment. While it may not be an essential component for all installations, in certain situations, such as high-pressure systems, it could be considered a necessity.
2. Complexity: Compared to simpler venting systems, installing an automatic vent limiting device may require additional steps and expertise to ensure its proper installation and functioning.
3. Potential Malfunctions: Although rare, the device itself could experience malfunctions like stuck valves or mechanical failures, requiring professional repair or replacement.
Conclusion:The decision to buy a Maxitrol 12A49 1/2 NPT Automatic Vent Limiting Device depends on several factors. Persons operating high-pressure systems, occupied buildings, or installations with a history of pressure issues should consider the potential advantages of enhanced safety, convenience, and efficiency. However, those with standard pressure systems or minimal budget constraints might opt to forego this additional investment.
Recommendation:Ultimately, it's essential to weigh the potential benefits against the additional costs and consider the unique requirements of the specific application before investing in a Maxitrol 12A49 1/2 NPT Automatic Vent Limiting Device. Consulting a plumbing expert or your appliance manufacturer for tailored advice is always recommended.
Details:
Condition is new. Maxitrol 12A49. Shipped with USPS ground advantage. Automatic vent limiting device for 325-7 325.
specifications maxohvac:
- brand: Maxitrol
- mpn: 12a49
- model: 325-7 325
- part type: Device
shipping maxohvac:
- transit: 6-12 days
- carrier: usps
- type: calculated
- service: usps ground advantage
- class: standard
seller maxohvac:
- rating: 100.0%
- # reviews: 60
- city: irving, texas
payments maxohvac:
- wallet: google-pay
- other
- credit card: mastercard
returns maxohvac:
- policy: no returns
offer maxohvac:
- in stock #: 5
- best offers: true
- sold #: 20
- prices: $154.78–$1105.00
- item condition:
- Unspecified
- New
- availability: in stock
- options: ship-to-home
- started: january 19, 2025
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
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