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 £56.53
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The reason I went to NABIC was because we have to meet certain water regulations. After a chat with Northumbrian Water, they suggested looking into NABIC products as they are WRAS approved and suitable to use on all potable water applications.
I went direct and bought 4 pipe interrupters with next day delivery, which have been installed in our on-site laboratory. My user experience was great and I liked the fact that site has all the necessary specifications and prices easily to hand.
Peter Bauckham - Managing Director, Argos Inspection