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The NABIC Fig 568 gunmetal Anti Vacuum Valve is set to open at a vacuum pressure of 50mbar.
A dust cap prevents entry of foreign matter.
Medium: Hot water, steam, air
Size Range: DN15 - DN50
Pressure: 13.5 bar
Material: Gunmetal
Temperature: -20 to 195°C
Connection: Male
Pipe Connections
BSPT ( R) BS EN 10226-2. male connections, R1/2, R3/4", R1", R1 1/4", R1 1/2" and R2" available.
Testing
All valves are 100% production tested.
Product Extras
Materials
| ITEM No. | PART NAME | MATERIAL |
|---|---|---|
| 1 | Body | Bronze, BS EN 1982:1999 CB/CC491K |
| 2 | Seat Seal Holder | Brass, BE EN 12164:2011 CW602N |
| 3 | Spindle | Brass, BS EN 12164:2011 CW614N |
| 4 | Cap | Brass, BS EN 12164:2011 CW614N |
| 5 | Spring | Stainless Steel BS2056 302S26 |
| 6 | Seat Seal | PTFE |
| 7 | Seat Seal Retaining Plate | Brass, BS EN 12164:2011 CW602 |
| 8 | O-Ring | Viton E60C |
Dimensional Drawing
Dimensions & Weights
| SIZE DN | A (mm) | B (mm) | C BSPT (mm) | D-HEX | WEIGHT KG |
|---|---|---|---|---|---|
| 15 | 58 | 35 | 1/2” | 24 | 0.1 |
| 20 | 61 | 36 | 3/4" | 30 | 0.16 |
| 25 | 66 | 39 | 1" | 36 | 0.26 |
| 32 | 76 | 43 | 1 1/4” | 46 | 0.52 |
| 40 | 90 | 51 | 1 1/2” | 52 | 0.77 |
| 50 | 94 | 58 | 2” | 65 | 1 .22 |
Price £58.23
You must select a value for all options provided.
We had an existing NABIC Fig. 500 safety valve installed in our steam boiler factory which needed replacing. The valve had started to leak due to its old age.
I had no hesitation in purchasing another as it’s been a great product. I was very happy with the service of the website, as well as the prices. The fact the valves come with the necessary certifications is also great.
Wayne Barnes- Engineering Co-ordinator, Newlywed Foods