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NIPO
API6D Explosion-proof Pneumatic Forging Steel Flanged Ball Valve
Applicable Standards:
Ball Valve design according to API6D,BS5351,ASME B16.34
Face to face ASME B16.10,API6D
End Flanges ASME B16.5/ASME B16.47
Butt welded ends ASME B16.25
Fire Safety API607,API6A
Inspection and test API 598,API6D
Parameter Name | Parameter |
|---|---|
Size Range | 2"-56" |
Pressure Range | 150LB-2500LB |
Material | A105/F304/F316/2205/2507 |
Seal | Soft Seat:DEVLON |
Temperature Range | -29°C~100°C |
End Connection Type | RJ/RF/FF |
Fire Safety | API6FA |
Operate | Pneumatic |
Body Type | Split Body |
Type of Valve | Trunnion Ball Valve |
Suitable Medium | Water, Steam, Oil and some corrosive liquid |
API 6D Standard Compliance: Manufactured and tested strictly to API 6D, ASME B16.34, and API 608 specifications. Every dimension is machined to precise tolerances, ensuring global interchangeability and absolute safety during installation and prolonged operation.
Advanced Seat Design (DBB & DIB): Equipped with independent spring-loaded seats that provide simultaneous upstream and downstream sealing, enabling classic Double Block and Bleed (DBB) functionality for safe cavity venting. To further elevate pipeline isolation safety, we offer Double Isolation and Bleed (DIB-1/DIB-2) and Double Piston Effect (DPE) seat configurations. These self-relieving seat designs automatically vent excess cavity pressure caused by thermal expansion, protecting the valve body from catastrophic overpressure.
Emergency Sealant Injection: Features precisely machined secondary sealant injection fittings for both the stem and seats. In the event of minor scoring or debris damage to the primary soft sealing rings, maintenance crews can inject specialized sealant compounds to instantly restore sealing integrity without halting pipeline operations or removing the valve from the line.
Comprehensive Safety & Environmental Compliance: Certified to API 607/API 6FA, the fire-safe design utilizes secondary metal-to-metal contact to maintain a secure seal even if the primary soft seats are destroyed by extreme heat. Internal grounding mechanisms provide continuous static discharge. Furthermore, the architecture incorporates an Anti-Blowout Stem—an internally inserted stem with a retaining shoulder that physically prevents ejection under sudden pressure surges. For sour gas applications, materials strictly comply with NACE MR0175 standards, while the entire assembly is designed to meet API 641 low fugitive emissions standards, satisfying modern environmental mandates.
