The NABIC Fig 256A pipe interrupter is classified as a type DC device suitable for protecting up to fluid category 5.
Incorporating ventilation ports that are totally unrestricted and permanent, water is guided past these air vents using a venturi type nozzle. Since they are open to atmosphere this stops siphonage and allows the escape of water in the event of backflow.
Medium: Water
Size Range: DN10 - DN20
Pressure: 0 - 10 bar
Material: Chrome Plated Brass
Temperature: -20 to 60°C
Connection: Male inlet and outlet
Pipe Connections
Male BSP inlet and outlet connections: G3/8", G1/2" and G3/4" to ISO228A.
Testing
All valves are 100% production tested.
Materials
| ITEM NO. | PART NAME | MATERIALS |
|---|---|---|
| 1 | Body Material | Brass |
| 2 | Internals | Plastic |
| 3 | 'O' Ring Seals | EPDM |
Dimensional Drawings
Dimensions & Weights
|
SIZE DN |
BSP G |
L | D | Kv |
|---|---|---|---|---|
| 10 | 3/8" | 83.5 | 30 | 0.33 |
| 15 | 1/2" | 91 | 43.5 | 0.9 |
| 20 | 3/4" | 88 | 43.5 | 1.14 |
Price £40.24
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