Standard and scope
Standard, product family and subcategory can be checked before inquiry.
Marine Cast Steel Flanged Stop Check Valve (GB/T585-2008) is designed to GB/T 585-2008 with flanged ends. nominal size is DN65-300；65-250；20-150；65-100；20-50; pressure rating is 2.5 / 4.0 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.
Lead time and Incoterms confirmed by order; MTC 3.1 scope confirmed during RFQ
Marine Cast Steel Flanged Stop Check Valve (GB/T585-2008) is designed to GB/T 585-2008 with flanged ends. nominal size is DN65-300；65-250；20-150；65-100；20-50; pressure rating is 2.5 / 4.0 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.
Standard, product family and subcategory can be checked before inquiry.
Check valve configuration, connection and installation orientation against the structure drawing.
MTC, pressure testing, records and supplementary inspection scope are confirmed by product and order requirement.
| Parameter | Value |
|---|---|
| Product | Marine Cast Steel Flanged Stop Check Valve |
| Design standard | GB/T 585-2008 |
| Body type | Type A/AS, Type B/BS |
| Body material | cast steel (ZG275-485) |
| End connection | Flanged |
| Item | Specification |
|---|---|
| Nominal pressure | 2.5 / 4.0 MPa |
| Nominal size | DN65-300；65-250；20-150；65-100；20-50 |
| Suitable media | freshwater, lubricating oil, fuel oil, steam; steam up to 300°C; steam up to 400°C |
| Part | Material |
|---|---|
| Body, Bonnet | cast steel (ZG275-485) |
| Disc | high-quality carbon steel |
| Stem | stainless steel (2Cr13) |
| DiscSeal ring | stainless steel (E410) |
| BodySeal ring | 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.
Export packaging and protection are planned by product type, transport mode and order requirements; palletizing can be arranged.
Lead time, Incoterms and payment terms are confirmed with the specification, quantity, certificate scope and production schedule.
MTC, test records, PMI, NDT and class-certificate scope are confirmed by product and order requirement.
Customer-nominated classification society or third-party inspection can be arranged when specified in the order.
Short answers for procurement review. Technical data, project conditions, and document scope are confirmed before quotation.
It covers a marine cast steel flanged stop-check valve designed to GB/T 585-2008. Type A/AS and Type B/BS constructions are listed for freshwater, lubricating-oil, fuel-oil, and steam systems after project confirmation.
The page lists 2.5 and 4.0 MPa pressure ratings and nominal-size references DN65-300, DN65-250, DN20-150, DN65-100, and DN20-50. It does not imply that every size is available at every pressure; the body type, temperature basis, and flange details are confirmed before quotation.
The body and bonnet are listed as cast steel ZG275-485, the disc as high-quality carbon steel, and the stem as stainless steel 2Cr13. Disc and body seal rings are listed as stainless steel E410 and E347 respectively.
No. The listed media are freshwater, lubricating oil, fuel oil, and steam. Seawater service requires a separate material and application review rather than assuming this cast-steel stop-check configuration is suitable.
Send body type, DN, pressure class, quantity, service medium and maximum temperature, flange details, destination or delivery term, certificate and inspection requirements, and required date. Attach a drawing when dimensions govern the selection.
EN 10204 3.1 MTC, pressure-test records, PMI, NDT, classification-society documents, and customer-nominated inspection are confirmed by product and order. They are not automatically included in every shipment.
