A single flange leak can lead to significant safety hazards and costly production shutdowns. Safety often starts with the most fundamental element: fastener standards ‼️
✅ This guide breaks down the core standards for key piping flange fasteners:
▪️ Hex Head Bolt (GB/T 5782) – Ideal for general-purpose connections.
▪️Fully Threaded Stud (GB/T 9125) – The preferred choice for high-pressure and high-temperature applications.
▪️Threaded Rod (GB/T 901) – Offers flexibility for non-standard scenarios.
➡️ The right choice goes beyond just the type. Property Class(e.g., 8.8, A4-70) and Material(e.g., 35CrMoA, equivalent to 316 stainless steel) are critical for resisting pressure, temperature, and corrosive media.
This isn’t just about bolts and studs; it’s about ensuring the integrity of your entire piping system ‼️
🔎 Key Reminder:Always base your selection on the specific service environment (pressure, temperature, medium corrosivity) and the applicable piping codes. This is the essence of engineering diligence.
