The flat slotted rupture disc is a type of rupture disc that does not have a pre-arched design. Its bursting pressure is controlled by a weakened structure created through peripheral or central perforations and adjacent terminating holes. When the disc ruptures, it tears along the through-holes to create a venting path, allowing the release of overpressure in a safe manner. This design is commonly referred to as the PF (Flat Slotted) type.
In industrial settings, when air contains organic dust, factors such as mechanical friction, overheating, static electricity, and potential fire sources can lead to dust deflagration or explosion. To prevent such incidents, rupture discs are widely used in industries dealing with organic dust, including coal, mineral powder, pharmaceuticals, fertilizers, plastics, grains, pigments, and fibers.
The flat slotted rupture disc (PF) is specifically designed for low-pressure applications and can operate under no back pressure or vacuum conditions. It is suitable for gas, liquid, and dust media. The maximum working pressure can reach up to 60% of the minimum burst pressure, making it an efficient and reliable safety device.
**Technical Characteristics:**
| Product Name | Disc Slitting Rupture Disc | Square Plate Rupture Disc |
|-------------------------|----------------------------|---------------------------|
| Structure and Loading |  |  |
| Force State | Stretch | Stretch |
| Venting Range (mm) | 25~1000 | 300~1600 |
| Normal Temperature Burst Pressure Range (MPa) | 0.02~1.0 | 0.02~1.0 |
| Back Pressure Bracket | Can be added | Can be added |
| Matching Gripper Type | PJ or Special Design | Special Design |
| Dynamic Response Characteristic (second) | ≥1/1000 | ≥1/1000 |
| Suitable for Flammable & Explosive Media | Yes | Yes |
| Resistance to Stress Fatigue | General | General |
| Debris During Blasting | Yes, but Rarely | Yes, but Rarely |
| Risk of Impact Spark | Very Unlikely | Very Unlikely |
| Can Be Used in Series with Safety Valve | Difficult | No |
| Selection Notes | Suitable for Low & Ultra Low Pressure | Suitable for Low & Ultra Low Pressure |
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Submission:
This rupture disc is ideal for environments where rapid pressure relief is required without causing additional hazards. Its design ensures minimal debris and reduces the risk of sparks, making it a safer choice for explosive environments. Whether you're working with gases, liquids, or fine particulates, the flat slotted rupture disc offers a reliable solution for pressure control and system protection.
Submission:
This rupture disc is ideal for environments where rapid pressure relief is required without causing additional hazards. Its design ensures minimal debris and reduces the risk of sparks, making it a safer choice for explosive environments. Whether you're working with gases, liquids, or fine particulates, the flat slotted rupture disc offers a reliable solution for pressure control and system protection.Diaphragm Fiber Fabric Air Duct
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Jiangsu Buna Technology Development Co. , Ltd. , https://www.bunaduct.com