Description
DCV10 (stainless steel) and DCV10C (carbon steel) wafer check valves are designed for installation between flanges, specifically for water pumps and other circulating applications. They are suitable for a wide range of process media, process pipelines, hot water systems, steam systems, and condensate systems. Compared with conventional wafer check valves, the center guide design provides longer and more reliable service life. The check valve maintains the correct flow direction of condensate or other suitable fluids while preventing reverse flow.
Standard: Design complies with BS EN 14341: 2006. This product is fully compliant with the European Pressure Equipment Directive 97/23/EC and can be supplied with CE marking when required. Disc-to-seat sealing complies with EN 12266-1: 2003 Grade F.
Certificates: An EN10204 3.1 material certificate is available. Note: Please specify when ordering if a material certificate or inspection certificate is required.
Size and Pipe Connections
Sizes: DN25, DN40, DN50, DN80, DN100, DN125, DN150, DN200 and DN250
For DN25-DN100, the PN rating is suitable for the following flanges: EN1092 PN25, PN16, PN40, JIS / KS 10K and JIS / KS 20K.
For DN125-DN250, ASME (ANSI) 300 rating is suitable for the following flanges: EN 1092 PN25, PN16, PN40 and JIS / KS 20K; (ANSI) B 16.5 Class 150 and Class 300. EN 558 Series 49 (DN125-DN200) and EN558 Series 52 (DN250).
Materials
DCV10 and DCV10C (DN25-DN100)
| No. | Component | Material |
|---|---|---|
| 1 | Body | PN: Austenitic stainless steel 1.4308; ASME: Austenitic stainless steel A351 CF8 |
| 2 | Disc | DN25-DN40: Austenitic stainless steel A276 316L; DN50-DN100: Austenitic stainless steel AISI 316L |
| 3 | Retainer | Martensitic BS 3146-2 ANC2 |
| 4 | Spring | Stainless steel BS2056 316 S42 |
| 5 | Gasket | Filler-reinforced graphite |
DCV10 and DCV10C (DN125-DN250)
| No. | Component | Material |
|---|---|---|
| 1 | Body | DCV10 PN: Austenitic stainless steel 1.4308; ASME: Austenitic stainless steel 351 CF8 DCV10C PN: Carbon steel 1.0619+N; ASME: Carbon steel A216 WCB |
| 2 | Disc | PN: Austenitic stainless steel 1.4308; ASME: Austenitic stainless steel A351 CF8 |
| 3 | Seat | PN: Austenitic stainless steel 1.4308; ASME: Austenitic stainless steel A351 CF8 |
| 4 | Spring | Stainless steel 316L |
| 5 | Gasket | Filler-reinforced graphite |
Kv Values
| DN | DN25 | DN40 | DN50 | DN80 | DN100 | DN125 | DN150 | DN200 | DN250 |
|---|---|---|---|---|---|---|---|---|---|
| KV | 10.8 | 26 | 43 | 80 | 130 | 188 | 213 | 432 | 735 |
Pressure/Temperature Limits
DCV10 (DN25 - DN100)
| Parameter | DN25 - DN80 | DN100 |
|---|---|---|
| Body design rating | PN25, PN16 or ASME (ANSI) Class 300 | Same as left |
| PMA body design rating (max. allowable pressure) | PN25: 25 bar g @ 0 °C PN40: 40 bar g @ 0°C ASME Class 300: 49.6 bar g @ 0 °C | Same as left |
| TMA maximum allowable temperature | PN25: 200°C @ 17.2 bar g ASME Class 300: 200°C @ 34.5 bar g | PN25: 200°C @ 17.2 bar g ASME Class 300 (DN100): 400°C @ 28.4 bar g |
| Minimum allowable temperature | -10°C | -10°C |
| PMO maximum operating pressure | PN25: 25 bar g @ 0 °C ASME Class 300: 49.5 bar g @ 0 °C | Same as left |
| TMO maximum operating temperature | PN25: 200°C @ 17.2 bar g ASME Class 300: 200°C @ 34.5 bar g | PN25: 200°C @ 17.2 bar g ASME Class 300 (DN100): 400°C @ 28.4 bar g |
| Temperature limits | -10°C to +200°C | -10°C to +400°C |
Maximum design cold hydraulic test pressure: PN25: 37.5 bar g; ASME Class 300 DN25 - DN100: 74.4 bar g
DCV10 (DN125-DN250) & DCV10C (DN125-DN250)
| Parameter | DCV10 | DCV10C |
|---|---|---|
| Body design rating | PN40 or ASME (ANSI) Class 300 | PN40 or ASME (ANSI) Class 300 |
| PMA maximum allowable pressure | 49.6 bar g @ 38°C | 51.1 bar g @ 38°C |
| TMA maximum allowable temperature | 400°C @ 28.4 bar g | 400°C @ 34.7 bar g |
| Minimum allowable temperature | -29°C | -29°C |
| PMO maximum operating pressure | 33 bar g @ 241°C | 42 bar g @ 255°C |
| TMO maximum operating temperature | 400°C @ 28.4 bar g | 400°C @ 34.7 bar g |
| Temperature limits | -29°C to +400°C | -29°C to +400°C |
Maximum design cold hydraulic test pressure: 77 bar g
Operating Principle
DCV10 and DCV10C open when fluid pressure acts in the forward flow direction. Spring force closes the disc before reverse flow occurs.
Weight
DN25 - DN100
| DN | Weight |
|---|---|
| DN25 | 0.40 |
| DN40 | 0.82 |
| DN50 | 1.34 |
| DN80 | 2.56 |
| DN100 | 5.30 |
DN125 - DN250
| DN | Weight |
|---|---|
| DN125 | 11.00 |
| DN150 | 16.00 |
| DN200 | 32.00 |
| DN250 | 60.00 |
Installation Notes
Install DCV10 and DCV10C horizontally or vertically according to the flow direction marked on the valve body. Note: Flanges, bolts (or studs), nuts, and gaskets are to be supplied by the user.
Disposal Information
These products are recyclable. When disposing of the products, handle them carefully to prevent environmental pollution or hazards.
How to Order
Example: 1 Spirax Sarco DN80 DCV10 stainless steel check valve, installed between PN16 flanges.
Spare Parts
DCV10 and DCV10C require no maintenance and have no spare parts.