Design Series Description Language   Bottom drain valves BAV/F, BAVM/F Drain valves made of PTFE en Check valves BC/F, BCV/F, CV/F, CVV/F, GR/F, SR/F, SR-B/F, SRV/F, SRV-B/F, SRZ-V/F Richter Check Valves en Ball valves BVA/F, BVAP/F, BVI/F, BVIP/F Richter Lined Standard ASME and ISO Ball Valves en Strainers GS/F Pipeline Strainers en Strainers GSO/F Pipeline Strainers with strainer basket, removable from top en Overflow valves GU/F Chemical Overflow and Pressure Relief Valves en Overflow valve GUT/F Overflow and Pressure Relief Valves en Bellows sealed globe valves HV/F, HVR/F Bellows Sealed Globe Valves en Ball valves KA-N/F, KAP-N/F, KK/F, KKP/F, KN/F, KN-D/F, KNA/F, KNA-D/F, KNAP/F, KNAP-D/F, KNAP-S/F, KNAP-SF, KNAR/F, KNAR-D/F, KNARP/F, KNARP-D/F, KNA-S/F, KNP/F, KNP-D/F Ball Valves en Control ball valves KNR/F, KNR-D/F, KNRP/F, KNRP-D/F Control Ball Valve en Safety valves KSE/F Certified Chemical Safety Valves en Safety valves KSEA/F Richter PFA/PTFE Lined Safety Relief Valves en Low-pressure safety valve LPV-A/F, LPV-D/F Richter Low Pressure Overflow Valves en Diaphragm control valves MV/F, MVM/F, MVMP/F, MVP/F Richter Diaphragm Shut-off and Control Valves en Butterfly valves NK/F, NKL/F, NKLP/F, NKP/F, NKS/F, NKSP/F Richter PTFE Shut-off and Control Butterfly Valves en Sampling valves PA/F, PA/S Richter Sampling Valves en Sight glasses PSG/F, SGS/F, TSG/F Richter 2-/3-way Sight Glasses en Twin Piston Quarter-turn Actuator RA Twin Piston Quarter-turn Actuator en Globe control valves RSS/F Richter Chemical Control Valves en