Standard and scope
Design basis GB/T 584-2008, with CBM 1048/1051/1057-81 as compatible references.
Marine Cast Steel Flanged Stop Valve (GB/T584-2008) is designed to GB/T 584-2008 with flanged ends. nominal size is DN65-300；65-250；20-50; pressure rating is 2.5 / 4.0 / 6.4 MPa; suitable media are freshwater, lubricating oil, fuel oil, steam; steam up to 300°C; steam up to 400°C. Confirm size, class, materials and documentation requirements with your inquiry.
FOB Shanghai/Ningbo - 30-45 day lead - EN 10204 3.1 MTC per order
Marine Cast Steel Flanged Stop Valve (GB/T584-2008) is designed to GB/T 584-2008 with flanged ends. nominal size is DN65-300；65-250；20-50; pressure rating is 2.5 / 4.0 / 6.4 MPa; suitable media are freshwater, lubricating oil, fuel oil, steam; steam up to 300°C; steam up to 400°C. Confirm size, class, materials and documentation requirements with your inquiry.
Design basis GB/T 584-2008, with CBM 1048/1051/1057-81 as compatible references.
A, B, AS and BS body types. Performance coverage is DN20-300 by pressure class; large-size dimensions are confirmed before quotation.
EN 10204 3.1 MTC and 100% shell and seat pressure testing per order. PMI, NDT and classification-society documents are arranged when specified.
| Parameter | Value |
|---|---|
| Product | Marine Cast Steel Flanged Stop Valve |
| Design standard | GB/T 584-2008 |
| Body type | A / B / AS / BS |
| Body material | cast steel (ZG275-485) |
| End connection | Flanged |
| PN (MPa) | Nominal diameter DN (mm) | Applicable medium |
|---|---|---|
| 1.0 | 65-300 | Fresh water, lubricating oil, fuel oil, steam up to 300 °C |
| 1.6 | 65-250 | Fresh water, lubricating oil, fuel oil, steam up to 300 °C |
| 2.5 | 20-150 | Fresh water, lubricating oil, fuel oil, steam up to 300 °C |
| 4.0 | 65-100 | Fresh water, lubricating oil, fuel oil, steam up to 400 °C |
| 6.4 | 20-50 | Fresh water, lubricating oil, fuel oil, steam up to 400 °C |
| Part | Material |
|---|---|
| Body / bonnet | Cast steel (ZG275-485) |
| Disc | High-quality carbon steel (20) |
| Stem | Stainless steel (2Cr13) |
| Disc seal ring | Welded stainless steel (E410) |
| Body seal ring (PN≤2.5) | Welded stainless steel (E347) |
| Body seal ring (PN≥4.0) | Welded stainless steel (E347) |
For shipboard freshwater isolation, check or media-control duties.
Confirm cleanliness and sealing compatibility for lubricating-oil service.
Confirm pressure, temperature and sealing material for fuel-oil service.
Steam service is checked against temperature limits and pressure class.
Standard export wooden cases, palletized on request. Rust-preventative coating and desiccant for sea freight.
30-45 days after order confirmation. Stock sizes may ship faster.
FOB Shanghai or Ningbo. CIF/CFR available on request.
30% T/T advance, 70% before shipment.
