Non-return valve heavy-duty version pipe Ø PN max. Galvanised steel, flow ring thread

Non-return valve, G 1 o., bite-type tube to thread, Pipe exterior Ø 25, PN max. 250, a/f1 46, a/f2 46, a/f3 50, galvanised steel. Non-return valve, flow direction bite-type tube to thread, parallel male thread, heavy type