This McAlpine 1 1/4 x 1 1/4" self-closing waste valve with tundish adapter includes BSP female inlet nut x compression connections. The valve's membrane opens under water pressure allowing discharge to freely flow before closing to form a seal designed to prevent unpleasant odours and sewer gases escaping into the premises.
This McAlpine 1 1/4 x 1 1/4" self-closing waste valve with tundish adapter includes BSP female inlet nut x compression connections. The valve's membrane opens under water pressure allowing discharge to freely flow before closing to form a seal designed to prevent unpleasant odours and sewer gases escaping into the premises.