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

A Paradigm Shift in Pump Selection

Jan. 22, 2025
Discover how INNOMAG® is transforming pump selection with innovative design and unparalleled performance. Learn how this breakthrough solution simplifies operations, enhances ...

The Need for Speed: The Most Advanced Sealless Pump is Also the Fastest

Jan. 14, 2025
Struggling with a troublesome pump? Get a reliable solution in just five days with the fastest, most advanced sealless pump on the market.

Say Goodbye to Pumping’s Weakest Links

Jan. 14, 2025
Shaft seals and ball bearings cause nearly 80% of pump failures—but not with INNOMAG®. With no seals, no bearings, and a thrust-balanced design, these pumps deliver unmatched ...

Ready to Reduce the Cost of Energy with a Highly Efficient, More Forgiving Pump?

Jan. 14, 2025
INNOMAG® pumps save energy and maintain peak efficiency over time—no wear and tear. Discover how they can lower your operating costs and increase reliability.