The forged steel pressure seal bonnet check valve is designed for reliable backflow prevention in ultra-high-pressure systems. Made from A105 forged carbon steel, it offers superior strength and durability at temperatures up to 560°C. Its T-type flow path reduces pressure loss and erosion, while the socket weld ends simplify installation in compact piping layouts. Rated at 2500LB, this valve complies with API 602 standards and is 100% tested per API 598. The pressure seal bonnet enhances sealing performance under high pressure, making it ideal for instrument lines, bypass loops, and critical process branches. Trust SFANVALVE for precision-engineered forged steel check valves that perform under extreme conditions.
| 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.
