1. Design and manufacture according to: API 6D, BS 5351;
2. Connection flange ends according to: ANSI B16.5;
3. Test and inspection according to: API 598.
4. Structure features: floating ball;
5. Material conform to : ANSI/ASTM
6. Main Material: A105(N), LF2, F304(L), F316(L), F51, F91, F11, F22, F321, etc.
The double block and bleed ball valve provides enhanced safety and reliability in oil, gas, and chemical processing systems. Made from ASTM A216 WCB cast steel, it withstands temperatures up to 425°C and offers excellent mechanical strength. Its integrated design features two main shut-off valves and a central bleed port, enabling dual isolation with cavity venting—critical for maintenance safety. With flanged ends per ANSI B16.5, installation is straightforward and secure. Compliant with API 6D and 100% tested per API 598, the valve ensures bubble-tight shut-off using soft-seated PTFE seals. Ideal for high-integrity applications where zero leakage and operational safety are non-negotiable. Trust SFANVALVE for precision-engineered double block and bleed ball valves built for performance and compliance.
| Brand | SFAN VALVE OR "OEM" |
|---|---|
| Flow bore | Standard bore or Full bore |
| Material | Carbon steel, Stainless steel, Alloy steel or other |
| Dimension | DN10(1/4") to DN100(4") |
| Class | 150~2500 |
| Medium | Water, oil &gas. |
| Temperature | -196℃(cryogenic design) to 560℃ |
| Valve test | 100% quantity tested before delivery |
| Valve guarantee | 18 months after shipments and 12 months after installed |
| Packing | Plywood or carton cases |
| Delivery time | 7 days to 30 days |
| Place of Origin | Zhejiang, China |
Your questions answered
For Sfanvalve’s standard products, we are willing to start production without any payment in advance. We accept product inspection upon completion, and payment is only due once the inspection is passed. SFAN will then arrange shipment to your designated warehouse as per your requirements.
Yes. After receiving the contract, we will provide technical drawings. Production will commence based on these drawings once they are confirmed by both parties.
After receiving the contract and confirming the drawings, we will provide a production schedule and manufacture strictly according to it. We will provide photos or videos to share and make a record for every stage of the production process. If a serious delay occurs due to management error, we will arrange air shipment and bear all costs by air.”
The warranty period is 18 months from the date of shipment or 12 months from the date of installation, whichever occurs first.
