NGP are Agents for Witt Gasetechnik ball valves. This is a comprehensive range of ball valves with a variety of body and seal material combinations with female thread, male thread or flanged connections. Made in Germany to international and national standards, namely DIN ISO 228/1, EN560, DIN 3202. Ball valves with female thread for Town Gas, Natural Gas and LPG can also be provided with DVGW Reg. numbers on request, however this will limit the pressure to PN 4. Oxygen ball valves are highly resistant to internal ignition. BAM certified. NGP stocks a wide range of regulator & torch end, pipeline, stainless steel, and hydrogen flashback arrestors. Call or email us with your requirement.