Product Name: Burst Valve / Rupture Disc Assembly

Description:
This component is a burst valve, also known as a rupture disc assembly, designed as a critical over-pressure protection device for ultra-high pressure waterjet cutting systems. It consists of a precision-machined metal diaphragm (burst disc) housed within a valve body that is calibrated to rupture at a specific pressure threshold. When system pressure exceeds the rated value, the disc bursts instantly, releasing high-pressure water to atmosphere and preventing catastrophic equipment failure or operator injury. Once activated, the burst disc is a single-use component that must be replaced.

Applications:

• Installed in the high-pressure fluid circuit as the final line of defense against dangerous over-pressure conditions

• Mounted in the discharge manifold or directly on the intensifier pump outlet

• Protects pumps, high-pressure lines, fittings, and cutting heads from pressure spikes caused by blocked orifices, defective valves, or operator error

• Suitable for ultra-high pressure waterjet systems operating at 60,000–90,000 PSI (approximately 4,137–6,200 bar)

Features:

• Single-Use Safety Device: The burst disc is designed to rupture at a predetermined pressure (typically 105-115% of rated working pressure) and must be replaced after each activation 

• Fast Response Time: Ruptures within milliseconds of over-pressure detection, instantly dropping system pressure to near-zero 

• Sacrificial Protection: Serves as a replaceable weak point that sacrifices itself to protect expensive pump components and ensure operator safety 

• Simple Operation: No moving parts; relies on precise metal fatigue engineering of the diaphragm

• Visual Failure Indication: Water escaping from the burst disc vent clearly indicates activation 

Maintenance:

• Immediate Replacement After Burst: When the disc ruptures, water will escape from the vent port . Shut down the system immediately, depressurize completely, and replace the disc before restarting 

• Regular Inspection: Check the burst disc assembly for signs of corrosion, damage, or leakage during routine maintenance

• Correct Pressure Rating: Always replace with a disc calibrated to the correct pressure rating for your specific system. Using a disc rated for higher pressure can lead to catastrophic failure 

• Proper Orientation: Install the disc with the correct orientation (convex side typically facing the pressure source) as marked on the assembly 

• Verify Vent Direction: Ensure the vent port is directed away from operators and sensitive equipment 

• Torque Compliance: Tighten the retaining cap to the torque specification listed on the type plate or service manual 

• Full Depressurization: Always fully depressurize the waterjet system and follow lockout/tagout procedures before replacing the burst disc