Check Valve, NPT Connection, 3/4 Inch, PN16, Body CF8M, Trim SS 316.
Founded in 2008, DERVOS VALVES INDUSTRY CO., LTD is a professional vendor, exporter and supplier of industrial valves, pipes and fittings. Dervos has expanded its business to five continents around the world, including Europe, Oceania, Africa, America and Asia.
Our commitment is to find the most suitable products for our clients in an efficient way. We adopt modern management skills to make sure efficiency in production and selling system.
With a complete product range, Dervos product lists cover gate, globe, check, ball, butterfly, check, plug valve and strainers. We can also provide marine valve, pressure reducing valve, control globe valve, wellhead valve and so on.
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| No | Actual Value Item Name | - | - | - | - | - | |||||||||
| Left | Right | Left | Right | Left | Right | Left | Right | Left | Right | ||||||
| 1. Product information tag | |||||||||||||||
| 1 | Logo | VIS | VIS | VIS | VIS | VIS | VIS | ||||||||
| 2 | Size | 3/4" | 3/4" | 3/4" | 3/4" | 3/4" | 3/4" | ||||||||
| 3 | Rating | PN16 | PN16 | PN16 | PN16 | PN16 | PN16 | ||||||||
| 4 | Body material | CF8M | CF8M | CF8M | CF8M | CF8M | CF8M | ||||||||
| 5 | Body heat No | Actual copy | 20227 | 20227 | 20227 | 20227 | 20227 | ||||||||
| 6 | Bonnet material | CF8M | - | - | - | - | - | ||||||||
| 7 | Bonnet heat No | Actual copy | - | - | - | - | - | ||||||||
| 8 | Disc material | CF8M | - | - | - | - | - | ||||||||
| 9 | Disc heat No | Actual copy | - | - | - | - | - | ||||||||
| 2. Visual examination(Eligible items "√" , Unqualified items "x") | |||||||||||||||
| 1 | Medium flow direction | √ | √ | √ | √ | √ | |||||||||
| 2 | Cleanness of inner chamber | √ | √ | √ | √ | √ | |||||||||
| 3 | Appearance bright and clean degree | √ | √ | √ | √ | √ | |||||||||
| 4 | Wall thickness | √ | √ | √ | √ | √ | |||||||||
| 5 | Middle slotting | √ | √ | √ | √ | √ | |||||||||
| 6 | Bolt uniformity | √ | √ | √ | √ | √ | |||||||||
| 7 | The switch of flexibility | √ | √ | √ | √ | √ | |||||||||
| 3. Dimensional check | |||||||||||||||
| 1 | Face to Face L | 78 | 77.7 | 77.2 | 77.5 | 77.4 | 77.3 | ||||||||
| 2 | Connection thread NPT | 3/4" | PASS | PASS | PASS | PASS | PASS | PASS | PASS | PASS | PASS | PASS | |||
| 3 | Seat diameter dn | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | |||
| 4 | Open/Close height H | 45 | 48 | 48 | 48 | 48 | 48 | ||||||||
| 4. Witnessing tests:Testing standards, in accordance with API598 (Eligible items "PASS" , Unqualified items "The actual leakage rate") | |||||||||||||||
| 1 | Shell test (water) | 2.1 MPa / 15 S | PASS | PASS | PASS | PASS | PASS | ||||||||
| 2 | Seal test (water) | 1.6 MPa / 15 S | PASS | PASS | PASS | PASS | PASS | ||||||||
| No | Actual Value Item Name | - | - | - | - | - | ||||||||
| Left | Right | Left | Right | Left | Right | Left | Right | Left | Right | |||||
| 1. Product information tag | ||||||||||||||
| 1 | Logo | VIS | VIS | VIS | VIS | VIS | VIS | |||||||
| 2 | Size | 3/4" | 3/4" | 3/4" | 3/4" | 3/4" | 3/4" | |||||||
| 3 | Rating | PN16 | PN16 | PN16 | PN16 | PN16 | PN16 | |||||||
| 4 | Body material | CF8M | CF8M | CF8M | CF8M | CF8M | CF8M | |||||||
| 5 | Body heat No | Actual copy | 20227 | 20227 | 20227 | 20227 | 20227 | |||||||
| 6 | Bonnet material | CF8M | - | - | - | - | - | |||||||
| 7 | Bonnet heat No | Actual copy | - | - | - | - | - | |||||||
| 8 | Disc material | CF8M | - | - | - | - | - | |||||||
| 9 | Disc heat No | Actual copy | - | - | - | - | - | |||||||
| 2. Visual examination(Eligible items "√" , Unqualified items "x") | ||||||||||||||
| 1 | Medium flow direction | √ | √ | √ | √ | √ | ||||||||
| 2 | Cleanness of inner chamber | √ | √ | √ | √ | √ | ||||||||
| 3 | Appearance bright and clean degree | √ | √ | √ | √ | √ | ||||||||
| 4 | Wall thickness | √ | √ | √ | √ | √ | ||||||||
| 5 | Middle slotting | √ | √ | √ | √ | √ | ||||||||
| 6 | Bolt uniformity | √ | √ | √ | √ | √ | ||||||||
| 7 | The switch of flexibility | √ | √ | √ | √ | √ | ||||||||
| 3. Dimensional check | ||||||||||||||
| 1 | Face to Face L | 78 | 77.2 | 77.5 | 78.1 | 77.5 | 77.2 | |||||||
| 2 | Connection thread NPT | 3/4" | PASS | PASS | PASS | PASS | PASS | PASS | PASS | PASS | PASS | PASS | ||
| 3 | Seat diameter dn | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | ||
| 4 | Open/Close height H | 45 | 48 | 48 | 48 | 48 | 48 | |||||||
| 4. Witnessing tests:Testing standards, in accordance with API598 (Eligible items "PASS" , Unqualified items "The actual leakage rate") | ||||||||||||||
| 1 | Shell test (water) | 2.1 MPa / 15 S | PASS | PASS | PASS | PASS | PASS | |||||||
| 2 | Seal test (water) | 1.6 MPa / 15 S | PASS | PASS | PASS | PASS | PASS | |||||||
| Note: The data in the list for reference only. | ||||||||||||||
Company Profile
Founded in 2008, DERVOS VALVES INDUSTRY CO., LTD is a professional vendor, exporter and supplier of industrial valves, pipes and fittings. Dervos has expanded its business to five continents around the world, including Europe, Oceania, Africa, America and Asia.
Our commitment is to find the most suitable products for our clients in an efficient way. We adopt modern management skills to make sure efficiency in production and selling system.
Our Main Product Range
With a complete product range, Dervos product lists cover gate, globe, check, ball, butterfly, check, plug valve and strainers. We can also provide marine valve, pressure reducing valve, control globe valve, wellhead valve and so on.