Triple-Mechanism Stability in Grooved Pipe Fittings

Triple-Mechanism Stability: Self-Sealing, Flexibility & Dynamic Compensation in Grooved Pipe Fittings

Self-Tightening Sealing Mechanism‌
Principle‌: The rubber sealing ring expands under internal pipe pressure, creating a tighter seal as pressure increases, resulting in dynamic sealing.
Advantages‌:
Adapts to pressure fluctuations (1.0~2.5 MPa), preventing leaks.
Maintains sealing performance over long-term use, reducing maintenance needs.

Flexible Structural Design‌
Flexible Couplings‌: Allow axial deflection (±1°~±2°) and radial displacement (e.g., ±1 mm for DN100 pipes) to accommodate thermal expansion or ground settlement.
Rigid Couplings‌: Fix pipe positions to prevent system deformation, suitable for scenarios requiring strict alignment.

Dynamic Compensation Capability‌
Temperature Adaptability‌: The rubber ring compensates for thermal deformation in pipes within a range of -30°C to 100°C.
Seismic Performance‌: Connection points absorb vibration energy, reducing pipe damage risks during earthquakes or mechanical vibrations.

Performance Validation Tests‌
Pressure Test‌: Verifies sealing reliability under pressures of 1.6 MPa and above.
Fatigue Test‌: Simulates long-term usage with 100,000 cyclic load tests.
Seismic Test‌: Evaluates displacement tolerance under simulated seismic waves.

In summary, the triple mechanism of ‌self-tightening sealing, flexible structure, and dynamic compensation‌ ensures stable connections under pressure, temperature, and external force variations, making grooved pipe fittings widely used in firefighting, industrial, and municipal engineering.