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Shandong Zhihua Pipe Industry Co., Ltd.
1. Core Application Scenarios
1.1 Dry Fire Protection Systems
Grooved fittings with elastic sealing rings and couplings ensure airtightness in dry pre-action systems. They rapidly form stable seals upon system activation, minimizing leakage risks.
Ideal for cold regions or environments sensitive to accidental water discharge (e.g., data centers, archives). Their quick disassembly facilitates maintenance and inspections.
1.2 Industrial Compressed Air Transmission
Rubber seals in grooved fittings enhance sealing under pressure fluctuations. Rigid couplings absorb gas pressure shocks, outperforming traditional flange connections in vibration-prone areas (e.g., pneumatic equipment junctions).
2. Technical Advantages
2.1 Enhanced Sealing Mechanisms
Dual sealing design: Combines a limiting sleeve and double-layer sealing gaskets (as described in Patent No.1) to compensate for thermal expansion/contraction, maintaining integrity during dry-to-wet transitions.
Pressure-responsive sealing: Seal performance improves under rising pressure, ensuring reliability in high-pressure dry systems.
2.2 Installation Efficiency & Maintenance
Tool-free assembly: Bolted connections eliminate welding, enabling rapid installation by trained workers.
Non-destructive branching: Mechanical tees allow branch connections without pipe cutting, reducing downtime.
2.3 Material Compatibility
Custom groove depth: Adjusted for pipe materials (e.g., galvanized seamless steel pipes).
Quality control: Pipe end roundness is verified via an 8-point measurement method to prevent deformation-induced leaks.
3.Application Case Comparisons
|
Scenario |
Traditional Method Issues |
Grooved Fitting Solutions |
|
Data Center Gas Fire Suppression |
Welding damages anti-corrosion coatings |
Grooved couplings preserve coatings, extending service life |
|
Pharmaceutical Clean Air Systems |
Flange joints trap dust |
Smooth coupling surfaces enable easy cleaning, complying with GMP standards |
4.Critical Considerations
Seal material: Use low-temperature-resistant, aging-resistant rubber for long-term dry conditions .
Pressure rating: Select ductile iron fittings that match system pressure to avoid structural failure .
Post-installation checks: Conduct air-tightness tests (e.g., soap bubble method) to confirm proper coupling alignment .
By leveraging these features, grooved fittings provide leak-proof durability, rapid maintenance, and vibration resistance, making them superior to welding or flanges in dry pipe systems.
