API 675 Metering Pumps: What You Need to Know About Precision Chemical Injection
Why Choose API 675 Compliant Diaphragm Pumps for Your Operations
When your operation depends on precise chemical injection in challenging offshore and onshore environments, choosing the right metering pump technology determines whether your systems run reliably for decades or face costly failures and unplanned downtime. At MJ Systems, we specialize in providing SPX Flow Bran+Luebbe’s API 675 and API 674 metering and process pump solutions to customers across the petroleum, petrochemical, and chemical industries. With over two decades of experience helping operations optimize their fluid handling systems, we understand that precision isn’t just a specification, it’s the foundation of operational success. Our commitment is to partner with you to select, install, and support pumping systems that deliver the accuracy, reliability, and safety your critical applications require. We don’t just supply equipment, we provide expertise that helps you understand why the right pump technology matters to your bottom line.

Understanding API 675 Standards and Why Compliance Matters
API 675 isn’t an arbitrary specification, it’s a comprehensive standard developed by the American Petroleum Institute specifically for reciprocating metering pumps used in petroleum, petrochemical, and gas industry services. The standard establishes rigorous requirements for design, fabrication, testing, and performance that ensure pumps can operate reliably for 20, 30, or more years in some of the world’s harshest environments.
Why does this matter to your operation? API 675 compliance means your pump has been engineered and tested to maintain consistent accuracy over extended service life. It means the diaphragm design isolates the process fluid from the drive mechanism, eliminating traditional packing gland leak paths that plague older pump designs. It means safety features like internal pressure relief valves and diaphragm monitoring systems protect both your equipment and personnel. When regulatory agencies and industry partners see API 675 compliance, they see a pump designed to the highest standards in the industry.
The Sealless Diaphragm Advantage in Chemical Injection
Traditional reciprocating pumps with packing glands require constant maintenance and eventually develop leaks as seals deteriorate. The sealless double diaphragm design from Bran+Luebbe solves this problem entirely. The diaphragm serves as a barrier, completely isolating the process fluid from the pump drive mechanism. There are no seals to fail, no leak paths developing over time, and no atmospheric release of hazardous chemicals.
This zero-leak design addresses multiple operational concerns simultaneously. Environmental compliance becomes simpler when your pump design inherently prevents emissions. Worker safety improves when there’s no exposure risk from gradual seal deterioration. Maintenance costs drop significantly when you’re not constantly replacing worn seals. And regulatory inspectors see a system engineered specifically to prevent the environmental and safety issues they’re most concerned about.
Versatility That Grows With Your Operation
Bran+Luebbe’s Novados metering pump line offers modular design that adapts to your specific requirements. Choose simplex or multiplex configurations depending on whether you need single or multiple injection streams. Select horizontal or vertical combinations based on your installation space constraints. Adjust stroke length and speed through manual, electric, or pneumatic controls to match your exact flow requirements. With capacities ranging from 0.05 gph to 6,340 gph and pressures up to 15,000 psi, a single manufacturer can serve your entire operation’s metering needs.
This modularity means you’re not locked into oversized equipment that wastes energy or undersized systems that limit capacity. As your operation grows and requirements change, you can expand individual modules rather than replacing entire pump packages. That’s genuine operational flexibility.
Real-World Applications: From Biocides to Corrosion Inhibitors
Chemical injection applications span the entire spectrum of production and processing. Corrosion inhibitors protect subsea and downhole equipment in salty environments. Scale inhibitors prevent mineral deposits that restrict flow. Oxygen scavenging removes dissolved oxygen that causes degradation. Biocides prevent bacterial growth. Pour point depressants improve low-temperature performance. Demulsifiers separate water from oil. Each chemical requires precise dosing at consistent rates. Bran+Luebbe metering pumps deliver that precision reliably, day after day, in conditions that demand nothing less than excellence.
Ready to Optimize Your Metering Pump Performance?
If your operation requires precision chemical injection in demanding environments, MJ Systems is ready to help. We’ll assess your specific application requirements, recommend the right Bran+Luebbe pump solution, and support you through installation and beyond. Contact MJ Systems today for a consultation with our fluid handling experts. Let’s discuss how API 675 compliant metering pumps can improve your operational efficiency and reliability.
