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Fig 100 Automatic Air Vent

The NABIC Fig 100 Air Vent has been designed to automatically and efficiently remove trapped air from Heating systems.

It can also be fitted to other fluid systems were air inclusion causes problems.

  • Reliable operation
  • High degree of seat tightness
  • Easy inspection and cleaning
Product Features +

Medium: Hot water, air

Pressure: 0.15 - 10 bar

Material: Gunmetal

Temperature: -20 to 93°C

Connection: Female inlet, Male vent.

Pipe Connections

Inlet Rp 1/2" BSP female, Vent G 3/8" BSP male. BS EN 10226-1.


All valves are 100% production tested.

Product Extras

  • Optional lock shield valve available


1 PTFE Needle 25% Glass Filled PTFE
2 Cover BS EN 1982: 1999 CB491K
3 Float Stainless Steel 316
4 Body BS EN 1982: 1999 CB491K
5 Washer Klingersil C4430
6 Starlock Washer Stainless Steel
7 Spindle Stainless Steel 316 303 S21


Dimensional Drawing

Fig 100 Dimensional Drawing

Downloads +
Buy Online +

Fig 100 Automatic Air Vent

To order these products please call us on +44 (0)1462 443 278. 

Free delivery on orders over £400.

Part Number Size Ex Vat Stock Status More
DN15 £ 201.59 Call us +
1/2" BSP Female Inlet to BS21. PTFE Needle to Metal Seat.

What our customers say

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

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