Richter PFA/PTFE Shut-off and Control Butterfly Valves

Richter PFA/PTFE Shut-off and Control Butterfly Valves NK, NKS, NKL, NKS-C, NKL-C New: Sizes to mm (4 ) Titanium, PE-UMW Body lining PTFE, TFM-PTFE, PTFE-L, PE-UMW Disc/stem unit PFA, PFA-L, stainless steel, astelloy, titanium, special metals Clean Air Act Conformity

NK, NKS, NKL, NKS-C, NKL-C Richter wafer-style, lug-style and double-flange butterfly valves Fields of application Richter butterfly valves have proved successful in a wide variety of process plants. Shut-off, throttling and control of corrosive, hazardous and pure liquids, gases and vapours, e.g. - wet Cl gas and NaO in chlor-alkali electrolysis - large flows in the distribution and treatment of SO 4, Cl, NaO, NaOCl, chemical effluent etc. FDA-compliant, wetted materials for use in food processing, pharmacy and similar fields. Also suitable for free-flowing, low-abrasive bulk materials in the version with a metallic disc/stem unit. The compact butterfly valves are advantageous in confined spaces e.g. under vessels. Butterfly valves are economical valves: easy to install and dismantle, attractively priced, compact. Operating range -4 C to + C (-4 F to +4 F).1 mbar to bar vacuum (.15 psi to 145 psi vacuum) Product features Soft-sealing and gas-tight, both with lined and metallic disc/stem unit Leak-tight against the atmosphere in compliance with the German Clean Air Act (TA-Luft) Optional with safety stuffing box (series NK, NKS, NKL) Leakage rate in the seat to DIN EN 166, leakage rate A (formerly DIN 33 T3): gas-tight, bubbles Almost equal-percentage characteristics Face-to-face: ISO 575 series, API 69 Table 1, MSS SP-67 Table 3 Flanges (with lug-style and double-flange bodies) for connection to ISO 75- PN, ASME (ANSI) B16.5 Class 15, JIS R -K Anti-adhesive wetted surfaces thanks to PFA/PTFE Identification of the valves: DIN EN 19, ASME (ANSI) B16.34 Actuation: - hand lever, lockable - worm gear with handwheel - pneumatic/electric actuators Type code, wetted linings and available sizes see page Depending on the body version, the butterfly valves can be installed as a wafer-style valve ( sandwich-type ) with all three body versions or as a flange-mounted or dead-end butterfly valve with lug-style and double-flange body. Single-piece disc/stem unit optionally fluoroplastic lined with pure PFA for maximum corrosion resistance and a long service life. Very low friction values and torques during opening and closing due to the combination of a PFA disc/stem unit with a PTFE body optionally antistatic PFA-L disc/stem core made of highly torsionresistant Duplex stainless steel 1.4517/ CD4MCU (DN 45-/18-4 : SS 1.4435/316L) Alternatively metallic made of precision cast stainless steel - polished sealing surfaces, therefore very low friction values - polished disc surfaces on request other materials on request, e.g. astelloy C, titanium Thick-walled PTFE and TFM-PTFE lining of the valve body TFM-PTFE lining (DN 5-4/ -16 with PFA-lined disc: PTFE as standard, optionally TFM-PTFE) Lining thickness 3-3.5 mm (.1-.15 ) igh permeation resistance Vacuum-proof Optionally antistatic PTFE-L, PE-UMW Wide sealing surfaces of body lining for reliable sealing even with mating flanges with large radii, e.g. glass-lined components Permanently elastic seal in the valve opening by means of silicone insert under the PTFE body lining. Optionally FKM insert (e.g. Viton ) for use with chlorine gas for example

Double-action, maintenancefree and self-adjusting top and bottom stem sealing, therefore reliable even with many switching cycles and fluctuating temperatures: - primary: body lining against disc/stem shoulder - secondary: O-ring FKM, optionally FFKM Compliant with the German Clean Air Act even in the standard version without safety stuffing box Pressure-bearing body made of ductile cast iron EN-JS 49 (.743)/ASTM A395 absorbs system and pipe forces centers the valve in the pipe optionally body made of stainless steel or carbon-fibre/glass-fibrereinforced vinyl ester Long valve neck permits optimal heat insulation without the installation of an elevated lever, additional stem extensions on request. External corrosion protection Epoxy coating, nuts and bolts made of stainless steel Centering to ISO 511 Chlorine electrolysis options Specially for use with wet chlorine gas: Elastic insert made of Viton instead of silicone Body lining made of particularly permeation-proof, modified TFM-PTFE instead of standard PTFE Body nuts and bolts made of steel, for example, instead of stainless steel Tantal-coated ductile iron body 8 6 4 5 3 1 7 Wafer-style body NKS, NKS-C Lug-style body NKL, NKL-C Double-flange body NK 3

NK, NKS, NKL, NKS-C, NKL-C Components, materials and options for valves with a PFA-lined disc Components and materials Item Designation Standard design Standard design Special design DN 5-4 ( -16 ) DN 65,15,45-75 ( 1 /, 5, 18-3 ) 1 Body (Shell) Ductile cast iron EN-JS 49 (.743)/ Ductile cast iron EN-JS 49 (.743) Stainless steel, ASTM A395 CF/GF-reinforced vinyl ester 1 Disc/stem unit, one-piece Disc/stem core Duplex stainless steel Disc/stem core stainless steel 1.4435, Lining PFA-L antistatic 1.4517 (CD-4 MCu), PFA-lined PFA-lined 9 Guide pin Stainless steel (DN 15/6 ) 35 and lever (DN 5-/ -8 ) Stainless steel Stainless Steel 3 Plain bearing PTFE-coated (triple bearing) 4 O-ring FKM (Viton or equivalent), top and bottom FFKM (Kalrez or equivalent) 4/1 Packing rings (see Fig. above) PTFE (only with safety stuffing box) 45 Thrust rings Stainless steel (top and bottom) 49 Body lining PTFE, optionally TFM-PTFE TFM-PTFE PTFE-L antistatic, UMW-PE 41 Pressure gasket Aramide 413 Sealing foils PTFE (only with safety stuffing box) 53 Packing gland follower Stainless steel (see Fig. above) (only with safety stuffing box) 5 Bracket Stainless steel, connection ISO 511 + Namur Special design on request 517 Scraper ring Fluororubber no need if safety stuffing box installed 518 Cup spring assembly Stainless steel (top and bottom) 519 Throttling plate Stainless steel, 15 scaling Stainless steel, scaling 51 Flexible insert Silicone FKM (Viton or equivalent) 53 Grounding cable Stainless steel 55 Packing rings, disc (see Fig. above) PTFE, stainless steel (only with safety stuffing box) w/o No. Monitoring connection Only in conn. with safety stuffing box (see Fig. above) 84 Coupling Stainless steel Special materials on request 85 Actuator Pneumatic quarter-turn actuators electric actuators of e.g. Richter RA, Norbro, El-o-matic, AMG, AirTorque etc. various makes 857 Worm gear with handwheel Body EN-GJL 5 (GG-5) with epoxy coating Body ductile cast iron, aluminium. (not illustrated, see page 7) Stem with O-ring sealing, stem and bolts of stainless steel w/o No. Stem extension, not illustrated Design on request w/o No. Screws, nuts, washers Stainless steel Steel, B7M to US standard Options for PTFE-lined valves DN 5-4 ( -16 ) with a PFA-lined disc/stem unit 85 5 84 517 3 53 ISO 511 35 517 519 3 518 41 4 51 45 49 413 Safety stuffing box for use with environmentally hazardous media, independent action, can be adjusted manually from outside, on request with monitoring connection. Available for series NK, NKL, NKS DN 5-4 ( -16 ) except DN 65 +15 ( 1 / + 5 ) Manual actuation with limit switch Inductive or mechanical, connection in acc. with VDI/VDE 3845, alternatively freely mounted sensors Safety stuffing box 53 4/1 55 monitoring connection Connection handwheel to worm gear in the version with safety stuffing box 5 857 1 1 9 3 Fig.: Wafer-style body NKS 84 53/55 4

NKS-C, NKL-C Components, materials and options for valves with stainless steel/astelloy C/titanium disc Components and materials Item Designation Standard design Special design DN 5- ( -4 ) 1 Body (Shell) Ductile cast iron Stainless steel, EN-JS 49 (.743) CF-/GF-reinforced vinyl ester 1 Disc/stem unit, one-piece DN 5- ( -8 ): astelloy C, titanium gr. Duplex stainless steel 1.447/ ASTM A89 4A DN 5- ( -4 ): Stainless steel 1.444/316L 35 and lever Stainless steel, from DN (8 ) (DN 5-, -8 ) worm gear with handwheel 313 Complete bearing and on request pressure set 49 Body lining TFM-PTFE PTFE antistatic, UMW-PE 5 Bracket Stainless steel, Special design on request Connection to ISO 511 + Namur 519 Throttling plate Stainless steel, Scaling 51 Flexible insert Silicone FKM (Viton or equivalent), FDA-FKM 84 Coupling Stainless steel Special design on request 85 Actuator Pneumatic quarter-turn actuators Pneumatic or electric e.g. Richter RA, Norbro, actuators of various makes El-o-matic, AMG, AirTorque etc. 857 Worm gear with handwheel Body cast iron EN-GJL 5 Body ductile cast iron, (not illustrated, see page 4) (GG-5) with epoxy coating aluminium stem with O-ring sealing, stem and bolts stainless steel w/o. No. Stem extension, Design on request not illustrated w/o. No. Screws, nuts, washers Stainless steel on request Fig.: Wafer-style body NKS-C 85 5 84 ISO 511 35 519 1 313 49 51 1 313 Option: Butterfly valve with CF/GF-reinforced vinyl ester body Disc/stem unit plastic-lined or metallic PFA-lined, PFA antistatic, stainless steel, astelloy C, titanium gr. Body lining TFM-PTFE ighly corrosion-resistant, vacuum-proof Optionally TFM-PTFE antistatic, PE-UMW highly abrasion-resistant Permanently elastic seal in the valve passage by means of silicone insert Optionally FKM insert (e.g. Viton ) 5 1 5 4 3 Self-adjusting, maintenance-free stem sealing Leak-tight against atmosphere, German Clean Air Act (TA Luft) Double-acting with secondary O-ring Shell made of vinyl ester thermosetting plastic with % carbon-fibre/glass-fibre reinforcement Wafer-style or lug-style body igh dimensional stability, low weight, antistatic igh resistance to atmospheric corrosion DN 5-3 ( -1 ), operating pressure up to bar -3 to +13 C (- to +65 F) with TFM-PTFE, -3 to +9 C (- to +195 F) with PE-UMW Face-to-face ISO 575 series, API 69 Table 1, MSS-SP 67 Table 3 Seat leakage rate to DIN EN 166, leakage rate A: gas-tight, bubbles Connecting dimensions, pressure/temperature range, flow rates and torques: details on request

NK, NKS, NKL, NKS-C, NKL-C Connection dimensions, flow rates, torques PTFE and TFM-PTFE butterfly valves with PFA-lined disc Series NKS, NKSP NKS-C, NKSP-C NKL, NKLP NKL-C, NKLP-C NK, NKP Actuation Lever Gear/Actuator Lever Gear/Actuator Lever Gear/Actuator Lever Gear/Actuator Lever Gear/Actuator /F DN 5, 8, DN 5, 8, DN 65, 15, Lining, 15-4 DN 65, 15, 15-4 45-75 DN 5, 8, standard, 3, 4, 6-16 DN 5, 8, DN 65, 15 1 /, 5, 3, 4, 6-16 DN 65, 15 1 /, 5,18-3, 15,, 15, /F-L DN 5, 8,, 3, 4, 6, 8 1 /, 5 DN 65, 15 DN 5, 8,, 3, 4, 6, 8 1 /, 5 DN 65, 15, Lining, 15-3 35-4, 15-3 35-6 antistatic, 3, 4, 6-1 1 /, 5,14-16, 3, 4, 6-1 1 /, 5,14-4 DN 5, 8,, 15,, 3, 4, 6, 8 DN 5, 8,, 15-3, 3, 4, 6-1 Body design Wafer-style body and lever dimensions (mm) and approx. weights (kg) Lug-style body Double-flange body I Pipeline connections and approx. weights (kg) Flange connecting dimensions to ISO 75- PN and ASME (ANSI) 16.5 Cl. 15, weight (kg) with bare shaft (without lever, bracket etc.) 1) Flange through holes on request ) Tapped holes metric or UNC 3) DN 75 (3 ) only to ASME/ANSI B16.5 Cl. 15 Connection dimensions (mm) 6 DN 5 65 8 15 15 5 3 35 4 45 5 6 7 - inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 DN 5 65 8 15 15 5 3 35 4 45 5 6 7 - inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 3) K (ISO) 15 145 16 18 4 95 35 4 46 515 565 6 75 84 - nxd (ISO) 1) 4x19 8x18 8x19 8x19 8x18 8x3 8x3 1x3 1x3 16x3 16x8 x6 x6 x3 4x3 - n ) 4xM16 8xM16 8xM16 8xM16 8xM16 8xM 8xM 1xM 1xM 16xM 16xM4 xm4 xm4 xm7 4xM7 - K (ASME) 11 14 153 191 16 4 99 36 43 476 54 578 635 749 864 914 nxd (ASME) 1) 4x19 4x19 4x19 8x19 8x 8x 8x 1x6 1x6 13x9.5 16x9.5 16x3 x3 x35 8x35 8x35 n ) 4x 5 /8 4x 5 /8 4x 5 /8 8x 5 /8 8x 3 /4 8x 3 /4 8x 3 /4 1x 7 /8 1x 7 /8 1x1 16x1 16x1 1 /8 x1 1 /8 x1 1 /4 8x1 1 /4 8x1 1 /4 NKS, NKS-C (kg) 3.5 4 4.5 6 7.7 11 15 5 33 47 69 15 185 54 8 3 NKL, NKL-C (kg) 4.5 7 7.5 9.5 14.5 16 3 35 54 68 97 15 185 54 8 3 NK (kg) 4-5 7.5-1 19.5 9 47.5 - - - - - - - Connection dimensions (mm) for remotely actuated version DN 5 65 8 15 15 5 3 35 4 45 5 6 7 - inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 g 6 6 6 6 6 8 8 8 8 8 8 Conn. dim.* F7 F7 F7 F7 F7 F F F1 F1 F14 F14 F14 F14 F16 F16 F5 * to ISO 511 a 65 36 65 6 45 7 7 I 3 3 3 3 7 5 5 h 4 46 4 4 55 48 48 Weight.7.7.7.7 1.1 3.7 3.7 Worm gear, see page 7 DN 5 65 8 15 15 5 3 35 4 45 5 6 7 - inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 L 43 46 46 5 56 56 6 68 78 78 114 17 154 165 19 135 146 16 175 1 3 7 97 335 36 4 435 5 581 68 B (NKS, NKS-C) 7 67 89 1 18 165 195 5 58 8 B (NKL, NKL-C) 7 65 89 116 18 165 195 5 58 8 311 34 398 581 68 B (NK) 66-93 6-135 165 195 3 - - - - - - - E 8 48 67 87 118 14 193 43 9 343 389 417 477 56 665 716 T 4 11 17.5 4.5 38 48 71 9 11 137 15 164 184 15 64 89 C 9 6 18 15 166 1 65 315 365 43 48 515 57 67 787 851 F 3.5 3 3.5 3 3 4 4 4 4.5.5.5 1 1 G 1) 9-13 - 14 16 16 - - - - - - - A 3 19 3 3 5 36 36 4 43 5 5 5 5 64 64 55 Ø S 14 14 16 18 5 5 3 3 35 4 48 48 6 6 7 SW 11 11 1 14 18 18 5 3 - - - - - SW square-end - - - - - - - - - - - 36 36 46 46 55 M 15 19 15 16 5 5 5 35 35 5 5 64 64 55 1) Dimension G only applies to double-flange bodies like NKL/NKL-C but through holes h and lever DN 5- ( -8 ) for valves with PFA-lined disc (except DN 65+15 ( 1 / +5 ), see page 8) nxd 85 5 C E Connection to ISO 511 F F Ø S DN L L G 35 K SW T A B 84 M g Lug-style and wafer-style body Double-flange body a

NK, NKS, NKL, NKS-C, NKL-C Worm gear dimensions (mm) and approx. weights (kg) DN 5 65 8 15 15 5 3 35 4 45 5 6 7 - inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 b 73 68 73 73 68 73 73 5 5 16 16 13 13 186 186 186 c 51 46 51 51 46 63 63 69 69 83 83 14 14 14 e 45 44 45 45 44 45 45 7 7 86 86 84 84 138 138 138 g* 6 6 6 6 6 8 8 8 8 8 8 k* 15 15 15 15 15 15 5 5 5 5 3 3 4 4 5 m 87 89 87 87 89 7 7 1 1 14 14 15 15 155 155 55 p 7 9 7 7 9 7 7 4 4 4 4 45 45 55 55 55 r 181 18 181 181 18 181 181 6 6 6 6 89 89 389 389 48 s 6 64 6 6 64 6 6 89 89 9 9 97 97 18 18 18 t 84 84 15 15 13 13 156 156 8 8 8 u* 1 14 1 1 14 14 14 169 169 19 19 177 177 8 8 38 Weight 4 4 4 4 4 5 5 15 15 14 14 3 3 3 * for valves with safety stuffing box Torques (Nm) DN 5 65 8 15 15 5 3 35 4 45 5 6 7 - inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 Md 35 46 63 8 18 185 87 4 55 65 6 65 75 15 Md adm 61 18 36 179 75 775 1435 1775 3 35 195 4 3 3 8 Md adm = max. admissible torque (Nm) with the disc/stem unit blocked Flow rates (m 3 /h) and z-values Angle of opening DN 5 65 8 15 15 5 3 35 4 45 5 6 7 - inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 1 4 5 11 4 37 6 85 159 3 95 44 573 796 1315 14 3 6 14 7 7 84 17 85 41 6 78 149 1613 57 375 45 4 13 7 47 5 17 164 354 51 835 1 155 1993 558 361 65 659 5 4 49 8 93 9 76 53 88 1378 56 33 3865 5478 931 49 6 41 8 16 155 33 431 91 1451 8 33 44 457 5786 86 147 15394 7 67 118 197 47 477 7 1371 56 3633 57 65 617 7749 11149 199 1134 8 4 158 64 41 643 1136 1 369 5735 83 65 7871 9795 1418 4568 7448 9 1 11 8 456 836 154 53 483 651 945 1 988 1148 17754 3887 34744 Conversion to Cv = k v x 1.165 (USgpm) = k v x.971 (lmp gpm) 857 s Standard design worm gear Construction worm gear for butterfly valve with safety stuffing box 5 u 84 c t b e r g 53/55 p 857 m k z-values at 75% flow.3.46.63.9.4.6.3.19.16.14.1.49.49.48.9.3 Pressure/temperature range* NK, NKS, NKL with PFA-lined disc Body lining PTFE Vacuum mbar Gauge pressure bar Temperature F -4 3 7 5 85 3 4 145 8 6 4 5 5 5 1.5.1-4 1 14 16 Temperature C * A special meterial is used for the disc/stem core in case of operating temperatures below - C (-4 F). For low temperature applications please observe local regulations! 115 85 6 3 14.5 7.5 1.45.75.145.75.145.75.145 Vacuum psi Gauge pressure psig Pressure/temperature range NKS-C, NKL-C with PFA-lined disc Body lining TFM-PTFE Vacuum mbar Gauge pressure bar 8 6 4 5 5 5 1.5.1 Temperature F -4-4 3 7 5 85 3 4 145 DN 7+75 (8 +3 ) -4-1 14 16 Temperature C DN 45-6 (18-4 ) DN 65+15 ( 1 / +5 ) 115 85 6 3 14.5 7.5 1.45.75.145.75.145.75.145 For low temperature applications please observe local regulations! Vacuum psi Gauge pressure psig 7

NKS-C, NKL-C Connection dimensions, flow rates, torques TFM-PTFE butterfly valves with stainless steel/astelloy C/titanium disc Series NKS-C, NKSP-C NKL-C, NKLP-C Actuation Lever Gear/Actuator Lever Gear/Actuator /F Lining standard /F-L Lining antistatic DN 5- -8 DN 5-3 -1 DN 5-3 -1 DN 5- -8 DN 5- -4 DN 5-6 -4 Body design and lever DN 5- ( -8 ) for valves with metal disc and DN 65+15 ( 1 / +5 ) for valves with PFA-lined disc Wafer-style body Lug-style body l h a and lever dimensions (mm) and approx. weights (kg) 35 DN 5 65 8 15 15 5 3 35 4 45 5 6 7-8 9 inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 3 36 4 a 36 36 36 45 45 45 45 l 3 3 3 7 7 35 349 Worm gear, see page 9 h 46 46 46 55 55 55 55 Weight.8.8.8 1.1 1.1 1.4 1.9 S A Pipeline connections and approx. weights (kg) nxd DN 5 65 8 15 15 5 3 35 4 45 5 6 7-8 9 inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 3) 3 36 4 K (ISO) 15 145 16 18 4 95 35 4 46 515 565 6 75 84-95 5 116 nxd (ISO) 1) 4x18 8x18 8x18 8x18 8x18 8x 8x 1x 1x 16x 16x6 x6 x6 x3 4x3-4x33 8x33 8x36 n ) 4xM16 8xM16 8xM16 8xM16 8xM16 8xM 8xM 1xM 1xM 16xM 16xM4 xm4 xm4 xm7 4xM7-4xM3 8xM3 8xM33 K (ASME) 11 14 15 191 16 41 98 36 43 476 54 578 635 749 864 914 978 86 1 nxd (ASME) 1) 4x19 4x19 4x19 8x19 8x 8x 8x 1x6 1x6 1x9 16x9 16x3 x3 x35 8x35 8x35 8x4 3x4 36x4 n ) 4x 5 /8 4x 5 /8 4x 5 /8 8x 5 /8 8x 3 /4 8x 3 /4 8x 3 /4 1x 7 /8 1x 7 /8 1x1 16x1 16x1 1 /8 x1 1 /8 x1 1 /4 8x1 1 /4 8x1 1 /4 8x1 1 / 3x1 1 / 36x1 1 / NKS-C (kg) 3 4 5 6.3 7.7 16.5 4.5 37 87 7 15 185 54 8 3 4 46 48 NKL-C (kg) 5 7 8.1.8 14.5 15.8 4.6 33.3 57 87 7 15 185 54 8 3 4 46 48 Flange connecting dimensions to ISO 75- PN and ASME (ANSI) 16.5 Cl. 15, weight (kg) with bare shaft (without lever, bracket etc.) 1) Flange through holes on request ) Tapped holes metric or UNC 3) DN 75 (3 ) only to ASME/ANSI B16.5 Cl. 15 K DN A ØS A B Connection dimensions (mm) DN 5 65 8 15 15 5 3 35 4 45 5 6 7-8 9 inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 3 36 4 L* 43 46 46 5 56 56 6 68 78 78 114 17 154 165 19 19 3 16 13 146 165 185 17 45 7 38 33 365 4 435 5 581 68 63 684 771 B (für NKS-C) 56 67 84 1 15 158 19 5 like NKL-C, but through holes B (für NKL-C) 58 65 88 116 17 16 193 7 56 9 311 34 398 581 68 63 684 771 E 31 48 63 9 118 137 189 39 9 38 377 417 477 56 665 716 767 86 97 T 6 11 17 7 38 47 71 9 11 15 146 164 184 15 64 89 314 36 414 C 85 6 1 143 166 193 51 31 349 414 46 515 57 67 787 851 894 16 11 F.5.5.5.5.5.5.5.5.5.5.5.5.5.5 1 1 1 1 1 A 19 19 19 5 5 3 6 3 3 37 37 5 5 64 64 56 56 56 76 Ø S 14 14 14 18 18 4 8 8 36 36 48 48 6 6 7 7 7 98 SW 11 11 11 14 14 17 - - - - - - - - - - - - - SW square-end - - - - - - 19 7 7 36 36 46 46 55 55 55 75 * DN 3, 7- not to ISO 575 series, DIN EN 558-1 series C E 85 5 L T B A DN 5-15 -6 DN - 8-4 84 g SW SW Connection dimensions (mm) for remotely actuated version DN 5 65 8 15 15 5 3 35 4 45 5 6 7-8 9 inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 3 36 4 g 6 6 6 6 6 6 8 8 8 8 8 8 8 Conn. dim.* F7 F7 F7 F7 F7 F7 F F F F1 F1 F14 F14 F16 F16 F16 F5 F5 F3 * to ISO 511 Connection to ISO 511 8

NKS-C, NKL-C Worm gear dimensions (mm) and approx. weights (kg) DN 5 65 8 15 15 5 3 35 4 45 5 6 7-8 9 inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 3 36 4 b 68 68 68 68 68 8 8 8 115 115 115 13 13 186 186 186 186 186 186 c 46 46 46 46 46 55 55 55 73 73 73 83 83 14 14 14 14 14 14 e 44 44 44 44 44 53 53 53 69 69 69 84 84 138 138 138 138 138 138 k 15 15 15 15 15 5 5 5 3 3 4 4 5 6 6 4 p 9 9 9 9 9 34 34 34 43 43 43 45 45 55 55 55 55 55 55 r 18 18 18 18 18 15 15 15 66 66 66 89 89 389 389 48 44 44 436 s 64 64 64 64 64 75 75 75 91 91 91 97 97 18 18 18 18 18 18 t 84 84 84 84 84 11 11 11 135 135 135 156 156 8 8 8 8 8 8 Weight. 4.3 8.5 11.5 34.5 41.5 857 Standard design worm gear c t b e r p Torques (Nm) DN 5 65 8 15 15 5 3 35 4 45 5 6 7-8 9 inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 3 36 4 Md 3 35 45 6 8 1 19 3 4 45 5 6 65 75 15 3 7 34 Md adm 61 61 61 179 179 39 39 64 64 1 16 195 4 3 3 8 8 8 8 Md adm = max. admissible torque (Nm) with the disc/stem unit blocked Flow rates (m 3 /h) and z-values s k Angle of opening DN 5 65 8 15 15 5 3 35 4 45 5 6 7-8 9 inch 1 / 3 4 5 6 8 1 14 16 18 4 8 3 3 36 4 1.9 4.4 7.4 16.9 3.7 38.6 85 1 175 43 311 44 573 796 1315 14 1517 1788 1943 3 6.6 14 3. 5.4 7 115 5 3 56 698 887 149 1613 57 375 45 4384 54 5656 4 13.6 7.4 43.9 96 17 196 415 57 84 119 144 1993 558 361 65 659 7147 8556 999 5 5. 49.4 76 16 9 318 658 87 183 174 18 33 3865 5478 931 49 1114 13437 1463 6 4.8 8 1 58 33 53 36 19 198 669 3315 457 5786 86 147 15394 17188 951 77 7 61 118 178 374 477 716 1463 183 746 3664 451 617 7749 11149 199 1134 3811 997 31841 8 83 158 43 56 643 961 1956 387 36 4759 587 7871 9795 1418 4568 7448 3117 38784 415 9 1 11 318 66 836 144 53 364 4588 64 73 988 1148 17754 3887 34744 39789 49778 54 Conversion to Cv = k v x 1.165 (USgpm) = k v x.971 (lmp gpm) z-values at 75% flow.6.46.47.7.4.38.9.48.45.48.56.49.49.48.9.3.3.31.4 Pressure/temperature range NKS-C, NKL-C with disc made of stainless steel, astelloy C, titanium Vacuum mbar Gauge pressure bar 8 6 4 5 5 5 1.5.1 Temperature F -4-4 3 7 5 85 3 4 145 DN 7- (8-4 ) -4-1 14 16 Temperature C DN -6 (8-4 ) DN 5-15 ( -6 ) 115 85 6 3 14.5 7.5 1.45.75.145.75.145.75.145 Vacuum psi Gauge pressure psig For low temperature applications please observe local regulations! 9

NK, NKS, NKL, NKS-C, NKL-C Overview of Richter butterfly valves with wafer-style, lug-style, double-flange-body Body/Shell: Ductile cast iron 1) Wafer-style body DN 5-4 ( -16 ) Presented by: Design Material Manually actuated Pneumatically actuated Size (mm, inch) Body lining/disc Lining Lining Lining Lining 5 65 8 15 15 5 3 35 4 Lug-style body DN 5-4 ( -16 ) standard antistatic standard antistatic 1 / 3 4 5 6 8 1 14 16 PTFE/PFA NKS/F NKS/F-L ) NKSP/F NKSP/F-L ) TFM-PTFE/PFA NKS/F n.a. NKSP/F n.a. TFM-PTFE/PFA NKS-C/F NKS-C/F-L NKSP-C/F NKSP-C/F-L TFM-PTFE/stainl. steel NKS-C/F-S NKS-C/F-L-S NKSP-C/F-S NKSP-C/F-L-S TFM-PTFE/astelloy C NKS-C/F- NKS-C/F-L- NKSP-C/F- NKSP-C/F-L- TFM-PTFE/titanium gr. NKS-C/F-T NKS-C/F-L-T NKSP-C/F-T NKSP-C/F-L-T PE-UMW/stainl. steel NKS-C/E-S n.a. NKSP-C/E-S n.a. Design Material Manually actuated Pneumatically actuated Size (mm, inch) Body lining/disc Lining Lining Lining Lining 5 65 8 15 15 5 3 35 4 standard antistatic standard antistatic 1 / 3 4 5 6 8 1 14 16 PTFE/PFA NKL/F NKL/F-L ) NKLP/F NKLP/F-L ) TFM-PTFE/PFA NKL/F n.a. NKLP/F n.a. TFM-PTFE/PFA NKL-C/F NKL-C/F-L ) NKLP-C/F NKLP-C/F-L ) TFM-PTFE/stainl. steel NKL-C/F-S NKL-C/F-L-S ) NKLP-C/F-S NKLP-C/F-L-S ) TFM-PTFE/astelloy C NKL-C/F- NKL-C/F-L- ) NKLP-C/F- NKLP-C/F-L- ) TFM-PTFE/titanium gr. NKL-C/F-T NKL-C/F-L-T ) NKLP-C/F-T NKLP-C/F-L-T ) PE-UMW/stainl. steel NKL-C/E-S n.a. NKLP-C/E-S n.a. Lug-style body DN 45- (18-4 ) Design Material Manually actuated Pneumatically actuated Size (mm, inch) Body lining/disc Lining Lining Lining Lining 45 5 6 7 75 8 9 Double-flange body DN 5-3 ( -1 ) standard antistatic standard antistatic 18 4 8 3 3 36 4 TFM-PTFE/PFA NKL-C/F NKL-C/F-L ) NKLP-C/F NKLP-C/F-L ) TFM-PTFE/stainl. steel NKL-C/F-S NKL-C/F-L-S ) NKLP-C/F-S NKLP-C/F-L-S ) TFM-PTFE/astelloy C NKL-C/F- NKL-C/F-L- ) NKLP-C/F- NKLP-C/F-L- ) TFM-PTFE/titanium gr. NKL-C/F-T NKL-C/F-L-T ) NKLP-C/F-T NKLP-C/F-L-T ) PE-UMW/stainl. steel NKL-C/E-S n.a. NKLP-C/E-S n.a. 1) optionally shell made of stainless steel and fibre-reinforced vinyl ester, available sizes on request ) DN 35 (14 ) antistatic: Availability on request Design Material Manually actuated Pneumatically actuated Size (mm, inch) Body lining/disc Lining Lining Lining Lining 5 65 8 15 15 5 3 standard antistatic standard antistatic 1 / 3 4 5 6 8 1 PTFE/PFA NK/F NK/F-L NKP/F NKP/F-L TFM-PTFE/PFA NK/F n.a. NKP/F n.a. Richter Chemie-Technik Gmb Otto-Schott-Str., D-4796 Kempen, Germany Tel. +49 () 1 5/146-, Fax +49 () 1 5/146-19 www.richter-ct.com, richter-info@idexcorp.com Publication No. 139en.11 Richter Chemie-Technik Gmb. Subject to change without notice. Printed in Germany. Kalrez, Viton : TM. DuPont; Richter: TM. Richter Chemie-Technik Gmb; astelloy : TM aynes