The Richter HV/F Bellow-Sealed Valve is DIN/ISO, HVR/F ANSI/ISA-75.08.01 design. The HV series features a standard bellows, HV/F on-off plug, HVR/F control plug, interchangeable seat and plug of pure PTFE, stainless steel support rings or Hastelloy C bellows. Face-to-face according to DIN EN 558-1 and ISO 5752 series 1, HVR/F to ANSI/ISA-75.08.01. The HV are available manual operated.