Forged Steel Bellows Seal Gate Valve: Zero Emissions, Maximum Safety
Our forged steel bellows seal hand operated gate valve delivers uncompromising safety for critical fluid handling applications. Crafted from durable A105 forged steel, this robust gate valve integrates advanced bellows seal technology to eliminate stem emissions completely – making it ideal for hazardous, toxic, or valuable media.
The hand operated design with traditional handwheel ensures reliable manual control where power operation isn’t feasible. Unlike conventional packing that wears over time, the bellows seal maintains a hermetic barrier through extensive cycling, providing long-term reliability in chemical plants, refineries, and hydrocarbon facilities.
This A105 gate valve offers superior strength and corrosion resistance, capable of withstanding high pressures and temperatures while ensuring zero leakage. Choose our forged steel bellows sealed gate valve where environmental protection and process integrity are paramount requirements.
| 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 |
| CLASS 800 REDUCED BORE | CLASS 1500 REDUCED BORE |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | 1/2" | 3/4" | 1" | 11/4" | 11/2" | 2" | Size | 1/2" | 3/4" | 1" | 11/4" | 11/2" | 2" |
| A | 79 | 92 | 111 | 120 | 120 | 140 | A | 92 | 111 | 120 | 120 | 140 | 160 |
| B（Open） | 242 | 242 | 287 | 384 | 384 | 454 | B（Open） | 242 | 287 | 384 | 384 | 454 | 545 |
| C | 100 | 100 | 125 | 160 | 160 | 180 | C | 125 | 125 | 160 | 160 | 180 | 200 |
| F | 13 | 13 | 18 | 24 | 29 | 36.8 | F | 10 | 13 | 18 | 24 | 29 | 36.8 |
| G | 34 | 40 | 49 | 58 | 64 | 78 | G | 42 | 49 | 58 | 64 | 78 | 88 |
| Weight（kg） | 2.9 | 3.2 | 5.9 | 8.7 | 10.2 | 16.0 | Weight（kg） | 4.7 | 7.7 | 11.1 | 11.7 | 20.6 | 26.0 |
| Test Pressure | Class 150 | Class 300 | Class 600 | Class 800 (Forge Steel Valve) | Class 900 | Class 1500 | Class 2500 |
|---|---|---|---|---|---|---|---|
| Shell Test(MPa) | 3.0 | 7.5 | 15.4 | 21.0 | 22.5 | 37.5 | 63.0 |
| High Pressure Seal Test(MPa) | 2.2 | 5.5 | 11.3 | 15.4 | 16.5 | 27.5 | 46.2 |
| Low Pressure Seal Test(MPa) | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
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.
