Richter Check Valves CV, BC, SR, GR, RV, PRS

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Richter Check Valves CV, BC, SR, GR, RV, PRS ining PFA, PTFE, PFA- antistatic iquids, vapours and gases Vertical, inclined or horizontal installation

Richter check valves They prevent from back-flow of liquids, gases and vapours in pipelines. They are installed e.g. in the discharge line, directly downstream of the pump, to prevent the siphoning of the pump or pump rotation in the opposite direction as a result of back-flowing liquids when vessels have to be vented/aerated within approximate setting ranges. Richter check valves are designed for media where stainless steel does not offer lasting corrosion resistance as an alternative to valves made of exotic expensive metals (Hastelloy, Monel, tantalum etc.) for pure and slightly solids-laden media for metal-reactive media, e.g. H O for pure media where good cleaning possibilities and anti-adhesive surfaces are important. Operating range: Depending on design and material from -0 to 60 F (-9 to +80 C) (ASTM A9) from vacuum up to psi (6 bar) Installation and connecting dimensions ISO/DIN: face-to-face lengths DIN EN 88-, basic series (ISO 7, basic series ). Flange connecting dimensions: DIN EN 09-, shape B (ISO 700-, type B), on request drilled to ASME(ANSI) Cl. 0 Face-to-face lengths Peabody-Dore (BC/BCV series) ANSI/ISA- 7.08.0 Cl. 0 with flanges acc. to ASME B6. Cl. 0 raised face (series GR) ANSI/ISA- 7.08.0 Cl. 00 with flanges acc. to ASME B6. Cl. 00 raised face for series GR, /, on request. Product features a ining virgin pure PFA or PTFE Suitable for corrosive, hazardous, pure, hot and highly permeating media Thick-walled, high permeation resis tance Vacuum-resistant anchoring ining optionally antistatic available b Shell made of ductile cast iron ASTM A9 (EN-JS 049) absorbs system and pipe forces c Shut-off elements: solid and hollow balls as well as solid and hollow plugs made of PTFE. For special cases made of stainless steel, Hastelloy etc. Gas-tight sealing: series SR-B, SRV-B and SRZ-V optionally with soft-sealing fluorocaoutchouc seat sealing. Series GR and RV generally gas-tight sealing. d Horizontal, inclined or vertical installation e External corrosion protection Epoxy coating, nuts and bolts of stainless steel. f Identification DIN EN 9, ASME B6.4 g PED Pressure Equipment Directive The valves are suitable for liquids, vapours, gases of group. Series selection The operating conditions are so varied that the Richter range contains a large number of check valves: Series selection CV CVV BC BCV SR SR-B SRV SRV-B SRZ-V GR RV ISO face-to-face Peabody-Dore/ASME face-to-face Gas-tight in seat Seat or seat seal replaceable Horizontal installation Vertical installation Inclined installation* Operating pressure > 4. psi ( bar) Vacuum-tight Operating temperature > 0 F (00 C) Operating temperature < - F (-0 C) Integrated sight glass function Top-entry design * Guidance in centre under ball

CV, CVV (ISO) and BC, BCV (ASME) series Installation: horizontal, inclined, vertical pipe CV, BC series: with solid ball CVV, BCV series: with hollow ball Tightness: DIN EN 66-, leakage rate D, test medium gas These ball check valves have a hydraulically optimised design. The lining thickness of 0.6-0. (4- mm) offers very high permeation resistance. The CV and BC series with a solid ball seal against a falling or backflowing liquid. The CVV and BCV versions with a hollow ball can also be used for low opening differential pressures. If the installation position is reversed, CVV and BCV can also work as vacuum check and aeration valves. When installed vertically, the ball then floats on the rising liquid and seals upwards into the seat. When installed horizontally, a minimum differential pressure of 4. psi ( bar) with a hollow ball 7. psi (0. bar) is necessary so that the ball is pressed into the seat. GR series Installation: horizontal pipe Only with solid plug Tightness: gas-tight to DIN EN 66-, leakage rate A, test medium gas GR check valves are designed as plug valves and intended for horizon tal installation. Seat and plug are exchangeable. Thanks to the top-entry design, the valve can be opened from the top and serviced. ining thickness: 0.-0.4 (-6 mm), / + /4 ( +0) 0.4-0.6 (.-4 mm). 00 06 80 8 04 H 00 0 4 n x Ø d 0 Ø d Ø d 4 Ø d Ø d 4 n x Ø d Fig.: CV, BC series, vertical installation, sealing against falling liquid. Fig.: GR series, horizontal installation, sealing against back-flowing liquids, vapours, gases

SR, SRV, SR-B, SRV-B and SRZ-V series with integrated sight glass Installation: horizontal, inclined, vertical (SRZ-V, only vertical) pipe SR series with solid ball SRV series with hollow ball SR-B series with solid ball and soft-sealing seat SRV-B with hollow ball and soft-sealing seat SRZ-V series with hollow plug and soft-sealing seat Tightness: SR and SRV: DIN EN 66-, leakage rate D, test medium gas SR-B, SRV-B, SRZ-V: gas-tight to DIN EN 66-, leakage rate A, test medium gas These series make it possible to observe the function of the check valve through thick sight glasses made of borosilicate glass to DIN 7080. The functions of a straight-through sight glass are fulfilled. The solid ball SR and SR-B versions seal against a falling or back-flowing liquid. The SRV and SRV-B versions with hollow balls can also be used for low opening differential pressures. With reversed installation position, SRV and SRV-B also function as vacuum check and aeration valves. The ball then floats on the rising liquid and seals upwards into the seat. When installed horizontally, a mini mum differential pressure of 4. psi ( bar) with a hollow ball 7. psi (0. bar) is necessary to press the ball into the seat. The hollow plug version SRZ-V functions in the same way as SRV and SRV-B but for a much larger pressure/temperature range, see diagram on page. 00 4 04 a 00 4 a 408 4 06 n x Ø d n x Ø d Ø d Ø d 4 B Ø d Ø d 4 B Fig.: SR series, vertical installation, sealing against falling liquid, without seat seal Fig.: SRZ-V series, vertical installation, sealing against rising liquids, with hollow plug and soft-sealing seat seal 4

Materials, dimensions, weights, pressure/temperature diagram Components and materials Item Designation Materials 00 Body and Shell Ductile cast iron ASTM A9 0 body end (EN-JS 049) piece ining see separate table 06 Cover Ductile cast iron ASTM A9 (EM-JS 049), GR series optionally GS-C (.069) 4 Sight glass pane Borosilicate glass (e.g. Maxos ) 00 Ball PTFE ), optionally stainless steel, Hastelloy etc. 04 Plug Modified PTFE ) 0 Seat Modified PTFE ) 408 Flat gasket Aramide 4 Seat seal FFKM (optional for SR-B, SRV-B, SRZ-V) Round cord PTFE 80 Guide Modified PTFE ) 8 Stem Modified PTFE ) w/o No. Screws, nuts Stainless steel Pressure/vacuum/temperature range Vacuum in mbar Gauge pressure in bar Temperature in F -7 + 70 0 7 0 00 60 6 4 CV, BC, GR, SR, SR-B 0 9 SRZ-V 8 7 6 4 000 00 00 00 0 0 0 0 SR-B SRV-B SR-B CVV, BCV, SRV, SRV-B ining PFA 7 00 4-60 -0 0 40 80 0 0 80 Temperature in C 400 0 0 90 7 60 4 0 00 8 7 60 4 0. 0. 0.4 0. 0. 0.07 0.04 0.0 0.0 00 Vacuum in psia Gauge pressure in psig ) for lining PFA conductive: PTFE/carbon Installation and connecting dimensions: CV, CVV, GR, SR, SR-B, SRV, SRV-B, SRZ-V series to ISO 700- PN 6 ) ) D k d d 4 nxd a (inch) (mm) /..74.6.6.77 4x0. - /4 0.9 4..9..8 4x0. - 6. 4....68 4x0..89 / 40 7.87.9 4...46 4x0.7.6 0 9.06 6. 4.9.86 4.0 4x0.7. / 6.4 7.8.7 4.6 4.8 4x0.7. 80. 7.87 6..8.4 8x0.7.94 4 00.78 8.66 7.09 6.06 6. 8x0.7 4.9 6 0*. 0.98 9. - - 8x0.87 - * 6 ( 0) from BC/BCV series, face-to-face not to ISO/DIN, 4 (00 mm) bore Nominal sizes, lining materials, Cv (k V ) values and weights DIN/ISO series CV, CVV SR, SR-B, SRV GR (mm) series SRV-B, SRZ-V ) series series ining ) Cv ) lbs ining ) Cv ) lbs ining ) Cv ) lbs / PFA PFA- 9.9 7. - - - PFA PFA- 4.. /4 PFA 8.6 8.4 - - - PFA PFA- 4.. PFA PFA-.. PFA PFA- 7. (SRZ-V:.7).7 PFA PFA-. 0. / PFA PFA- 0. PFA PFA- 40.8 9.6 PFA PFA-.6 9. PFA PFA- 48. 7.8 PFA PFA- 8. (SRZ-V: 40.8) PFA PFA- 46.6 7. / PFA 66.4. - - - PFA PFA-.6 9.7 PFA PFA- 49.. PFA PFA- 4.6. PFA 8. 8.8 4 PFA PFA- 477.7 88. PFA PFA- 98. 8.6 PFA 7. 94.8 6 PFA PFA- 49.4 0.6 - - - - - - from BC / BCV series ASME (ANSI) series BC, BCV GR (inch) series series ining ) Cv ) lbs ining ) Cv ) lbs / PFA PFA- 8. 6. PFA PFA- 4.. /4 PFA PFA-.8 6.6 PFA PFA- 4.. PFA PFA-.6 8. PFA PFA-. / PFA PFA- 7.4.9 PFA PFA-.6 PFA PFA- 07. 8. PFA PFA- 46.6 4.9 / - - - - - PFA 48. PFA 8. 8.6 4 PFA PFA- 49.4 77. PFA 7. 90.4 6 PFA PFA- 49.4 0.6 - - - ) PFA- = PFA conductive (antistatic) ) Cv in USgpm (water 68 F, 0 C). Conversion to k v (m /h) = Cv x 0.88 or Cv (IMPgpm)= Cv x.96 ) SRZ-V: only + ( +0) Installation and connecting dimensions: BC, BCV, GR series to ASME Cl. 0 (ISO 700- PN0) and Peabody-Dore. Series GR to ASME Cl. 00 on request D k d 6) d 4 nxd H (inch) (mm) Series BC, GR BC, GR BC, BC, GR BC, GR BCV BCV BCV, BCV, BCV, GR GR GR /. )..74 4..8.97. ) 4.4 /4 0.9 ).9 4. 4..76.97. 4x0.6 4.4.98 7.4 4. 4...0 ).8 4) 4x0.6 6. / 40 7.0 8.74..88.87.0 4x0.6 7.8 0 7.0 0.98 6. 4.74.6.78 4x0.7 8 80 7.99.7 7.48 7.48 6. 4x0.7. 4 00 0..9 8.98 9.06 7. 6.8 6. 8x0.7.9 6 ) 0. - 0.98-9. - - 8x0.87 - ) not to Peabody-Dore ) tapped bore 4x / - UNC ) GR series:.8 (8 mm) 4) plastic sealing strip ) passage 4 6) BC/BCV without metallic sealing strip

Other Richter check valves RV series Installation: vertical pipe 6 ( 0), face-to-face 9.49 (40 mm), Cv-value 760 USgpm (kv-value 400 m /h) and 8 ( 00),.0 (80 mm), 00 USgpm (00 m /h) Gas-tight to DIN EN 66-, leakage rate A, test medium gas Body: ductile cast iron ASTM A9 (EN-JS 049), lining PTFE Seat and plug exchangeable Flanges ISO 700- PN6, on request drilled to ASME Cl.0 (ISO 700- PN0) PRS series The PRS overflow valve can also be used at low differential pressures to prevent the back-flow of gases, vapours and liquids. The seat/plug combination pretensioned with cup springs seals reliably. ( ), face-to-face 6. (60 mm) Gas-tight to DIN EN 66-, leakage rate A, test medium gas Body: ductile cast iron ASTM A9 (EN-JS 049), lining PTFE Plug, guide etc. exchangeable Flanges ISO 700- PN6, on request drilled to ASME Cl. 0 (ISO 700- PN0) Details on pressure/temperature range, materials, dimensions, etc. on request Presented by: 6 RV series Richter = Trademark of Richter Chemie-Technik GmbH MAXOS = Trademark of Schott AG Hastelloy = Trademark of DuPont Monel = Trademark of Special Metals Corp. PRS series Richter Inc. A Unit of IDEX Corporation 406 State Street, Cedar Falls, 06 IA, USA Tel. +(9) 68-808, Fax +(80) 6-770 Headquarter: Richter Chemie-Technik GmbH Otto- Schott- Str., D-47906 Kempen, Germany Tel. +49(0) /46-0, Fax +49(0) /46-90 www.richter-ct.com, richter-info@idexcorp.com Publication No. 7us 0. Richter Chemie-Technik GmbH. Subject to change without notice. Printed in Germany.

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