We offer a full range of NI61 hexagon nipples from stock in UPVC plastic, this includes sizes between 3/8" (DN10) and 2 1/2" (DN65) all of which are manufactured to the BS 4346-1 standard by Comer or Onyx and can be ordered here for delivery across the UK mainland.
These UPVC equal hexagon nipples are PN10 (10 bar) pressure rated and come with male BSPT taper threaded ends which conform to the BS EN 10226-1:2004 and ISO 7-1:1994 standards. The operating temperature range is 0 - 60°C.