DAH-31-3-6

Mercoid

200 offers available: $45.00–$6999.95
DAH-31-3-6 MERCOID Dwyer

The Mercoid DAH-31-3-6 Dwyer DAH3136 is a versatile and reliable temperature and pressure relief valve designed for various applications in both residential and commercial settings. This valve is engineered to provide automatic protection against overpressure or overtemperature situations, ensuring the safety and longevity of water heating systems.

The valve body is constructed of brass, a durable and corrosion-resistant material, ensuring long-lasting performance. The valve features a temperature range of 120 F to 250 F (49 C to 121 C), and a working pressure of 150 psi (10 bar). This valve's pressure relief rating is set at 15 psi (1 bar), allowing it to safely release excess pressure if necessary.

The DAH3136 is equipped with a 3/4" NPT threaded inlet and outlet connections, allowing for easy installation and integration into various plumbing systems. The valve also includes a 3/4" NPT threaded drain cock, which makes it simple to drain the system for maintenance or winterization.

This valve's temperature and pressure relief functions are controlled by an internal diaphragm assembly. The diaphragm is designed to flex when the temperature or pressure exceeds the set limits, allowing the valve to automatically release excess steam or water. Once the temperature or pressure returns to safe levels, the valve will automatically close, stopping any further releases.

The Dwyer DAH3136 comes with a factory-set pressure relief rating and temperature setting. However, it can be easily adjusted in the field using the provided adjusting tool, allowing users to fine-tune the valve to their specific applications. This valve also includes a leak-proof stem packing and a tamper-evident seal on the adjusting cap to ensure a secure installation and prevent unauthorized adjustments.

In summary, the Mercoid DAH-31-3-6 Dwyer DAH3136 is a high-quality temperature and pressure relief valve that provides automatic protection for water heating systems. Its rugged brass construction, adjustable settings, and easy installation make it an ideal choice for both residential and commercial applications.

The Dwyer Dwyer Dah-3136 and Mercoid Dah-31-3-6 are both magnetic flow meters used for measuring liquid flow rates. Here are some pros and cons of buying each:

Dwyer Dah-3136: Pros:

1. Accurate measurement: The Dwyer Dah-3136 offers high accuracy with a flow range of 0.2 to 25 gallons per minute (GPM).

2. Durable construction: It is made of stainless steel and has a temperature range of -22 F to 250 F, making it suitable for harsh environments.

3. Easy installation: The meter comes with a factory-set calibration and a built-in temperature sensor, making installation straightforward.

Cons:

1. Limited flow range: The Dwyer Dah-3136 has a relatively low maximum flow rate compared to some other magnetic flow meters.

2. Expensive: It is more costly than some other magnetic flow meters in its class.

Mercoid Dah-31-3-6: Pros:

1. Wide flow range: The Mercoid Dah-31-3-6 has a flow range of 0.03 to 30 GPM, making it suitable for a broader range of applications.

2. Affordable: It is less expensive than the Dwyer Dah-3136.

3. Versatile: It can be used with various applications, including water, wastewater, and corrosive liquids.

Cons:

1. Lower accuracy: The Mercoid Dah-31-3-6 may not offer the same level of accuracy as the Dwyer Dah-3136.

2. Limited temperature range: It has a temperature range of 32 F to 140 F, which may not be suitable for all applications.

Conclusion:

Both the Dwyer Dah-3136 and Mercoid Dah-31-3-6 are reliable magnetic flow meters with their unique advantages and disadvantages. If you require a magnetic flow meter with a high accuracy and a narrow flow range, the Dwyer Dah-3136 may be the better choice. However, if you need a meter with a broader flow range and a lower cost, the Mercoid Dah-31-3-6 may be the better option for you.

Recommendation:

Based on the given information, if you need a magnetic flow meter with a high accuracy and a narrow flow range, the Dwyer Dah-3136 is recommended. However, if you require a broader flow range and a lower cost, the Mercoid Dah-31-3-6 is recommended. Ultimately, the choice depends on the specific requirements of your application.

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