Emergency Shut-Off Valve
Emergency Shut-Off Valve
Core Differentiation:Designed exclusively for gas stations, with ductile iron valve body + copper internal parts. Unlike ordinary cast iron/single-material shut-off valves — ductile iron resists oil-gas corrosion and pipeline impact, while copper internal parts ensure precise sealing and wear resistance. Available in three styles: female thread, male thread, with movable joint, the 1.5" size precisely matches gas station pipelines, meeting different installation scenarios and guaranteeing "reliable emergency shut-off, long-term stable weather resistance" for fuel dispenser oil circuits.
1. Materials & Core Advantages
-Ductile Iron Valve Body: Strength surpasses ordinary cast iron, resisting long-term oil-gas erosion (e.g., corrosive environment from gasoline volatilization) and pipeline impact (dispenser start-stop or accidental collision). It won’t crack/deform in outdoor/underground installations, with a service life 40%+ longer than ordinary cast iron valves.
- Copper Internal Parts (Valve Core/Seal Components): Copper’s self-lubrication and fuel corrosion resistance make valve core opening/closing smoother, sealing surfaces wear slower. It responds sensitively during emergency shut-off and no leakage occurs after long-term use (perfect for gasoline, diesel, etc.).
2. Key Specifications
- Size: 1.5" (compatible with standard 1.5" interfaces of gas station fuel dispenser pipelines).
- Working Pressure: ≤0.6 MPa (covers fuel dispenser’s normal working pressure range).
- Medium Compatibility: Gasoline, diesel, kerosene, etc.
- Temperature Range: -20℃ ~ +60℃ (adapts to day-night/seasonal temperature changes in gas stations).
3. Application Scenarios & Usage (Differentiated by Styles)
- Female Thread Style: Adapts to gas station pipelines with *female thread interfaces* (e.g., internal connection pipelines of dispenser hosts), directly screwed in for convenient installation and fewer adapters.
- Male Thread Style: Matches pipelines with *male thread interfaces* (e.g., some oil tank output pipes), no additional reducing/adapting needed, and sealing is more direct.
- Style with Movable Joint: Deals with complex pipeline layout scenarios (e.g., angle deviation between dispensers and oil tanks, inconsistent joint types). The movable joint flexibly adjusts connection angles and is compatible with multiple interface types, reducing installation adaptation difficulty.
- Usage Steps:
1. Select Style: Choose the corresponding style based on pipeline interface type (female/male thread, angle adjustment needed), and confirm 1.5" size matching.
2. Sealed Installation: Wrap threaded ends with oil-resistant tape, screw clockwise into pipeline (tighten ductile iron moderately for sealing; avoid damaging copper parts with excessive force).
3. Function Test: After installation, gently pull the operating handle to check the flexibility of shut-off/reset; test the shut-off function monthly by simulating emergencies to ensure reliable action in emergencies.
