Understanding optimum nozzle loads

March 11, 2014
Balancing piping design and equipment reliability.

Piping loads that can be imposed on machinery nozzles (such as those of pumps, compressors, etc.) should be restrained within certain limits. Piping designers always want higher allowable nozzle loads to simplify piping designs while machinery manufacturers want smaller allowable nozzle loads to ensure good alignment, higher reliability and fewer complaints about operation. Process plant operators place great importance on long-term reliability of equipment and, so, generally should side with the machinery manufacturers. Regardless, it's essential for all parties to agree upon optimum nozzle loads for any machinery package.

Let's look specifically at nozzle loads for pumps and compressors.

Pump nozzle loads. These are specified in the pump's codes and standards (for example, API 610). The API 610 standard covers nozzle loads for horizontal pumps, vertical in-line pumps and vertically suspended pumps for nozzle sizes up to 16 in. (400 mm). For larger pump nozzles, come to an agreement with the vendor about nozzle loads before placing the order.

Read the whole story on Chemical Processing

Sponsored Recommendations

Limitations of MERV Ratings for Dust Collector Filters

Feb. 23, 2024
It can be complicated and confusing to select the safest and most efficient dust collector filters for your facility. For the HVAC industry, MERV ratings are king. But MERV ratings...

The Importance of Air-To-Cloth Ratio when Selecting Dust Collector Filters

Feb. 23, 2024
Selecting the right filter cartridges for your application can be complicated. There are a lot of things to evaluate and consider...like air-to-cloth ratio. When your filters ...

ASHRAE Standard 199 for Evaluating Dust Collection Systems

Feb. 23, 2024
This standard ensures dust collection systems are tested under real-world conditions, measuring a dust collector's emissions, pressure drop, and compressed air usage. Learn why...

Dust Collector Explosion Protection

Feb. 23, 2024
Combustible dust explosions are a serious risk, and an unprotected dust collection system can be a main cause. Learn what NFPA-compliant explosion protection you need to keep ...