Stainless Steel Pipe Flange Class 150 Plate Flange 304 316

At Kriloha Gaskets & Hardware, we recognize that a piping network is only as secure as its bolted interfaces. Our Stainless Steel Class 150 Plate Flanges represent our engineered answer for “Zero-Leak-Security” and “Flawless-Joint-Alignment.” As a premier supplier of comprehensive industrial pipeline solutions, Kriloha ensures that every plate flange bridges the gap between rugged structural endurance and exact geometric precision.

The engineering of our stainless steel flange program is founded on Material-Purity and Structural-Uniformity. Whether derived from premium Grade 304 for standard applications or Grade 316 for aggressive environments, our flanges are produced from verified, fully traceable steel stock. By utilizing advanced machining centers, we eliminate internal stresses and uneven surfaces. At Kriloha, we verify the absolute flatness of the sealing face and the precise spacing of the bolt circle, resulting in “Failure-Resistant” flanges that distribute bolt loads uniformly across your gaskets.

Manufacturing and provisioning these critical components involves strict Dimensional, Pressure, and Material Verification. We collaborate directly with your engineering teams to supply custom bore sizes, specialized face finishes (such as smooth or serrated configurations), and specific wall-thickness matching. By choosing Kriloha Gaskets & Hardware, you are investing in a “Future-Proof” industrial partnership that prioritizes your system’s structural longevity through superior metallurgy and micro-tolerance engineering.

Primary Use Cases

Water Treatment & Piping: Reliable connections for municipal water supply lines, wastewater processing plants, and filtration systems.
Chemical Fluid Handling: Transfer lines processing mildly corrosive fluids, organic solvents, and chemical agents (utilizing Grade 316 for enhanced chemical immunity).
Food, Beverage & Dairy: Hygienic piping networks where the smooth, non-porous surface of stainless steel prevents bacterial accumulation and stands up to frequent clean-in-place (CIP) washdowns.
HVAC & Industrial Cooling: Coolant and chilled water distribution lines within commercial buildings and heavy industrial plants.
Marine Utilities: Onshore and off-shore low-pressure utility lines exposed to salt spray and marine atmospheric corrosion (utilizing Grade 316).

Frequently Asked Questions (FAQs)

What is a “Plate Flange,” and how does it differ from a Hubbed Slip-On Flange?

A plate flange is completely flat without a raised collar or hub. It slides directly over the end of the pipe and is welded both internally and externally. Its flat profile makes it highly space-efficient and cost-effective for standard, low-to-medium pressure systems compared to hubbed variations.

Should I choose Grade 304 or Grade 316 stainless steel for my piping system?

Grade 304 is excellent and highly economical for general applications, water lines, and atmospheric exposure. However, if your system handles saltwater, marine environments, or aggressive chemical processing, Grade 316 is highly recommended due to its molybdenum content, which prevents chloride pitting.

What does “Class 150” signify regarding pressure and temperature?

Class 150 is an pressure-temperature rating standard. At ambient temperatures, a Class 150 flange can handle approximately 275 PSI of working pressure. As the operating temperature of the system rises, the maximum allowable working pressure gradually decreases.

Can these plate flanges be paired with raised-face (RF) valves or equipment?

It is standard engineering practice to connect flat-faced (FF) plate flanges to other flat-faced components to ensure uniform gasket compression and prevent the flange from bending or cracking when torque is applied to the bolts. If connecting to a raised-face component, proper gasket selection and careful torque management are essential.

Are custom bolt patterns or non-standard thicknesses available?

Yes. While we stock standard sizes matching industrial pipeline configurations, our manufacturing capabilities allow us to machine custom outer diameters, bespoke bolt-hole configurations, and specialized thicknesses to fulfill your proprietary engineering designs.