Corrosion-resistant PFA lining ISO/DIN and ANSI/ISA face-to-face Heavy-duty bellows Special designs for chlorine and high-purity media RSS )richter Process Pumps &. Valves

Richter bellows-sealed globe control valves Fields of application Flow control of corrosive, hazardous, pure and/or slightly solids-laden liquids, vapours and gases in the chemical, pharmaceutical and other industries. The Richter RSS series is especially suitable • for media where stainless steel is not sufficiently corrosion-resistant. • as an alternative to valves made of special metals (Hastelloy®, Monel®, titanium etc.). • for environmentally critical media (German Clean Air Act -“TA-Luft”). • for metal-reactive media, e.g. H2O2. • for biotechnology and high-purity media where good cleaning and...

RICHTER ® Exchangeable seat made of modified pure PTFE, no fillers. ® Easy top entry maintenance of the wetted internals: removable valve bonnet High-quality external corrosion protection: • Epoxy coating of the valve; valve stem and screws made of stainless steel ® Actuators and accessories • Pneumatic or electric actuators • Positioners, limit switches etc. All common makes. ® Travel stop protects plug and seat against excessively high shut-off forces, installation as per table on page 7 depending on Dp and seat 0. With protective rubber bellows. These bellows were developed for particularly...

Operation close to cavitation This special U-plug (U = circumferential guiding) is recommended, when cavitation might occur with DN 80, 100 and 150 (3“,4“+6“). It reliably overcomes the higher loads by dividing the medium flow and through the permanent guide in the valve seat. Universal for all RSS bellows versions. The V-plug made of compression-proof and dimensionally stable PTFE has 1 to 4 grooves, depend i ng on the kv/Cv value. When the valve opens, the V-grooves offer an expanding opening cross section whilst the plug is always guided in the seat. This ensures high-quality control even...

RICHTER Process Pumps & Valves Version for highly permeating media (e.g. chlorine) The special bush a - material e.g. Hastelloy C - protects the cover flange in the valve stem area against corrosive attack by permeating media. The valve stem - also e.g. Hastelloy C - remains moveable. Bellows: modified PTFE heavy-duty bellows with PTFE/carbon or Hastelloy support rings or bellows made of Hastelloy C b. The thick-walled seamless PFA body lining provides outstanding protection against permeation. Version for “biotechnology/ pure media” Pharmaceutical, fine and semiconductor chemicals, fermentation etc.,...

* depending on shut-off force ** Component not shown *** option. with safety stuffing box Face-to-face lengths ANSI/ISA 75.08.01 Cl. 150+300, flanges ASME B16.5 Cl. 150+300 RF * formerly DIN 3202/F1,2532/33 * without actuator

Attention: If Ap < p2, then insert p2 instead of Ap (see operating limits in pressure/ temperature diagram). * Plugs and seats made of other materials sometimes require higher shut-off forces. Details on request. ** - available for DN 25-100 (1”-4”). Heavy-duty PTFE bellows with PTFE/carbon support rings: max. operating pressure 10 bar/145 psi. - for DN 25 (1”) with 15 mm (0.6“) travel. In the case of actuators with a larger travel, the required control curve is achieved by means of positioners. - Valve opening travel requires higher forces than with standard PTFE bellows: DN 25 (1”) = 900 N,...

Other Richter Control Valves Control ball valve KNR/KNAR Compact valve with special V-control ball for kv 0.1-400 (Cv 0.12-466 US gpm). DN 15-200 (V2“-8“), face-to-face lengths and flanges to ISO/DIN and ASME/ANSI. See separate publication. Bellows-sealed shut-off and control valve HV/HVR The HV is preferable used where a ball or butterfly valve, for example, cannot be deployed owing to the requirement for hermetic tightness. The body, seat and bellows can be replaced and varied independently. Available from DN 15 to 100 (1/2 to 4“) with face-to-face and flanges acc. to ISO/DIN and ASME. See...