Richter heavy-duty ball valves – shut-off, control and drain valves – KN
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– shut-off, control and drain valves – ISO/DIN, ASME/ANSI Lining PFA, optionally PFA-L Maintenance-free ENVIPACK stem sealing -60 to +200 °C (-75 to +400 °F) Richter heavy-duty ball val

Heavy duty ball valves with ENVIPACK stem sealing The ball valve family, KN, excels by offering problem solutions from a modular system. The selection of fluoroplastic linings, the large temperature/pressure range and the numerous options permit a tailor-made solution for virtually every application involving highly corrosive and ultrapure media – with more or less the same components! The standard KN/KNA modular system: 1 ISO/DIN + 1 ASME/ANSI body, 4 lining materials, 1 universal stem sealing, 4 standard ball versions. In addition, Richter´s speciality: customised special solutions. The...

Thick-walled lining, 4 ball versions Ball versions Al2O3 ceramic ball with separate stem (optional) Cavity-free TF ball for optimum draining and flushing (optional) V-control ball, high-quality flow control, play-free (optional) Vacuum (mbar) Al2O3 ball, modified seat rings PTFE or PTFE/carbon PFA-lined ball stem What are the disadvantages of lined valves with “metallic stop”? The body halves are bolted together with full metallic contact 3m . Retightening is not possible, any leak that occurs cannot be stopped. The cavity between the lining and the metallic contact also prevents the early...

Richter drain valves KA-N with ENVIPACK stem sealing Drain valves are compact, sturdy vessel drain valves and much lower-priced than sliding stem valves. The KA-N has – apart from the tapered inlet nozzle – the same design as the ball valve series KN. The pressure/temperature range, design features, material range and the major spare parts are identical. Product features • Full bore • N 50/25 (Ø 25 mm) to 150/100 (Ø 100 mm), D 2“/1“ (Ø 1“) to 8“/6“ (Ø 6“) • 60 to +200 °C (-75 to +400 °F), see diagram on page 3 • Face-to-face: see table on page 7 • langes ISO/DIN 7005-2 PN 16, F on request,...

Richter control valves KNR and KNAR with play-free torque transmission Valve bodies, seat rings and the ENVIPACK stem sealing are identical to those of the shut-off valves KN and KNA as are the selection of material and the pressure/temperature range. Advantages: minimum stock of spare parts, conversion from shut-off to control valve possible. With the series KNR (ISO/DIN) and KNAR (ASME/ANSI) compact control valves with high control accuracy are available to plant operators. The KNR/KNAR valves are in many applications a very economical alternative to bellows-type, sliding stem valves....

201 Ball stem unit Stainless steel, PFA-lined optionally PFA-L, PFA-HP 502 Spring gland follower Stainless steel 503 Packing gland follower Stainless steel Play-free coupling for KNR, KNAR 203 804 Stainless steel Stainless steel Stainless steel 557 Grounding spring washer Stainless steel Stainless steel Stainless steel 804 Coupling, play-free Stainless steel 850 Actuator Stainless steel Stainless steel * worm gear is recommended for torques >/= 200 Nm a (1770lbs) All torques: Test medium water 20 °C, seat rings of pure PTFE. The torques may vary depending on the medium (dry gases,...

Richter’s speciality: customised problem solutions Ask Richter when you are looking for a solution to your problem! In addition to the selection of common special designs presented here, we also offer many other specialities. Special manual actuations e. g. limit switch, locking, manual gear Stainless steel heating jacket for all standard heat transfer media Lockable lever as standard feature (KN, KNA) Extra thick-walled lining 5 mm ( 1/5“) for highly permeating media Ball with relief opening for pressure relief of the ball interior in the closed position Linings antistatic, FDA-compliant...