AVK SILENT CHECK VALVE, PN10/16
Flanged silent check valve for water, and water with glycol from -10°C to 110°C
Series 903 metal seated silent check valves are designed to prevent back flow in high temperature range pumping applications. The valve element movement is controlled via a central guide where a centrally mounted spring together with the short movement aids the quick closing that is essential in reducing shock associated with valve closure. The pumped media can be water, glycol or other clean, neutral liquids.
| Variant 903/40-001 | |
|---|---|
| Connection: | Flanged |
| Material: | Stainless steel |
| DN: | DN65 - DN300 |
| PN: | PN10/16 |
Features
- The combination of light disc, short stroke distance and fast closing spring design effectively mitigates slamming
- Streamlined contour for low head loss
- The special metal seat design ensures quick and easy trim replacement
- Body and disc in cast, stainless steel 1.4308/CF8 (304), trim in AISI 304
- On sizes DN200 and below the design allows for installation of a butterfly valve at the outlet without additional adapters; cf. measure reference C
Reference nos. and dimensions:
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| AVK ref. no. | DN mm |
Flange drilling |
L mm |
W mm |
C mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|
| 903-065-40-11095 | 65 | PN10/16 | 140 | 185 | 27.5 | 7.8 |
| 903-080-40-11095 | 80 | PN10/16 | 152 | 200 | 35.5 | 9.5 |
| 903-100-40-11095 | 100 | PN10/16 | 184 | 235 | 46 | 13 |
| 903-125-40-11095 | 125 | PN10/16 | 216 | 270 | 51 | 19 |
| 903-150-40-11095 | 150 | PN10/16 | 248 | 300 | 61 | 25 |
| 903-200-40-11095 | 200 | PN16 | 317 | 360 | 84 | 42 |
| 903-250-40-11095 | 250 | PN16 | 394 | 440 | 118 | 67 |
| 903-300-40-11095 | 300 | PN16 | 362 | 500 | 16 | 85 |
Enquiry
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Components
| 1. | O-ring | EPDM rubber |
| 2. | Seat | Stainless steel 1.4308 (CF8), cast |
| 3. | Disc | Stainless steel 1.4308 (CF8), cast |
| 4. | Spring | Stainless steel 1.4301 |
| 5. | Body | Stainless steel 1.4308 (CF8), cast |
| 6. | Bolt | Stainless steel A2 |
| 7. | Retainer ball | Stainless steel AISI 304 |
Test/Approvals
- Seat: 1.1 x PN. Body: 1.5 x PN.
Standards
- EN 12334
- Face-to-face dimension according to MSS SP-125 short globe
- Flange drilling to EN1092, PN10/16