02 Jun Why Whipps, Inc. Avoids Cast Iron
Beyond Cast Iron: Why Whipps, Inc. Chooses Superior Materials
For decades, cast iron has been a staple in the water control industry. But at Whipps, Inc., we know there’s a better way. Founded on a commitment to innovation and quality by George Whipps, our company prioritizes performance, durability, and long-term value. That’s why we’ve embraced stainless steel and aluminum as superior materials for sluice gates and other water control products. These modern metals offer greater strength, better corrosion resistance, and far more reliability in real-world operating conditions.
Why Not Cast Iron?
While cast iron gates are still used in many older installations, they come with significant limitations. They are heavy, difficult to fabricate, and even harder to replace or repair. More importantly, cast iron is highly prone to corrosion, especially in wet or chemically aggressive environments. Once rust begins to compromise a gate, it becomes a costly and time-consuming issue that often requiring the entire gate to be removed and sent back to the manufacturer for refurbishment. Additionally, cast iron gates rely on metal-to-metal contact, which can cause components to seize after long periods of inactivity. This “freezing” effect often leads to performance issues and leakage, especially under high pressure.
The Whipps Advantage: Modern Materials
Stainless Steel
Whipps, Inc. stainless steel sluice gates, particularly our 900 Series, are engineered for strength and reliability. With more than twice the strength of cast iron and exceptional resistance to both stress and corrosion, stainless steel delivers unmatched long-term performance. Our gates are equipped with UHMW (ultra-high molecular weight) seat/seals that eliminate metal-on-metal contact and provide self-adjusting sealing. This ensures smooth operation and minimal leakage even after 25,000 open/close cycles in abrasive conditions.
304 Stainless Steel
Type 304 stainless steel offers excellent corrosion resistance and strength at a cost-effective price. It’s suitable for most water treatment, stormwater, and industrial discharge applications.
316 Stainless Steel
For environments with higher chloride levels such as coastal areas, saltwater applications, or harsh industrial settings, type 316 stainless steel provides superior corrosion resistance thanks to its molybdenum content. It’s the premium choice for demanding water control projects.
Aluminum
Aluminum sluice gates are another high-performance option we offer, especially when weight is a factor. Aluminum is naturally corrosion-resistant, making it ideal for tidal, stormwater, or wastewater applications. It’s easier to maneuver on-site, less costly than cast iron or stainless steel, and perfect for locations where weight or handling constraints are a concern.
Performance Backed by Quality Manufacturing
Unlike cast iron gates that require long lead times due to labor-intensive casting and machining processes, our stainless steel and aluminum gates are fabricated efficiently in-house at our headquarters in Massachusetts. Whipps, Inc. offers faster turnaround, easier customizations, and tighter quality control.
Contact Whipps, Inc. for Quality Sluice Gates and More
When performance, longevity, and precision matter, Whipps, Inc. delivers. Whether you need stainless steel sluice gates for a wastewater treatment plant or lightweight aluminum gates for a tidal application, we build solutions that last. Contact us today to learn more about why our modern materials outperform outdated cast iron alternatives.










