Overflow Fittings
Back to top

Tundish with self closing valve

MACTUN-1 15mm inlet x 22mm outlet
MACTUN-1 15mm inlet x 22mm outlet
MACTUN-1
MACTUN-2 15/22mm inlet x 1¼” outlet
MACTUN-2
Downloads
The only combined tundish and non-return valve with a silicone membrane seal ensuring it will not be affected in hard water areas.
  • MACTUN incorporates a self closing membrane which opens to allow discharge to flow freely and then closes to form a seal. This prevents foul odour or sewer gas entering the building when installed into a waste or soil pipe.
  • The membrane seal has no spring mechanism and shall not be affected in hard water areas.
  • The membrane seal creates no resistance ensuring a smooth discharge flow from the PRV/TRV
  • Temperature Rating 100°C
  • The product is generally maintenance free. If required, the top tundish window can be removed from the Mactun body for inspection or cleaning when maintenance work is being carried out.
  • Suitable for use on Cylinders, Boilers, Water Heaters, PRV Valves, Condensate and Air Conditioning Units
  • KIWA Certified and WRAS approved
Size
Product Code
15mm inlet x 22mm outlet
MACTUN-1
15/22mm inlet x 1¼” outlet
MACTUN-2
Downloads

Download this Section of the Catalogue

Section 4

Contact Us

McAlpine plumbing products are designed and manufactured to be installed by qualified plumbing professionals. On this basis we cannot accept installation queries from the general public. Please contact your local McAlpine stockist or a qualified plumbing professional. For all other enquiries please fill out the form below.

CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.