ARC Aseptic Remote-Controlled Valve with PTFE Diaphragm PD 65143 GB5 21-1 Application ARC is an aseptic seat valve with PTFE diaphragm. It is available as a stop- or change-over valve. The valve is suited for aseptic operating conditions such as high sterilisation temperatures. ARC is characterised by excellent cleanability. Working principle ARC is operated by means of compressed air and can be supplied with or without spring return. Sterile stem sealing towards the atmosphere is ensured by a special designed PTFE/rubber diaphragm unit. The PTFE diaphragm does not allow product residues to build up on the product contact surface. Standard design ARC is based on the SRC valve design. It consists of actuator, intermediate piece, stem with diaphragm unit and valve bodies. The change-over version is a two body design. The valve is assembled by means of clamp rings and a stem clip system for easy maintenance. Materials Product wetted steel parts: Acid-resistant steel AISI 316L. Other steel parts: Stainless steel AISI 34. Finish: Semi bright. Product wetted seals: EPDM, PTFE. Other seals: NBR, EPDM. Technical data Pressure range: -8 kpa (-8 bar). Temperature range: -1 o C to +14 o C (EPDM). Optimum process conditions: >5 kpa (.5 bar), >2 o C. Max. sterilization temperature (steam - short time):15 o C-38 kpa (3.8 bar). Air pressure: 5-8 kpa (5-8 bar). Note! Vacuum is not recommended in aseptic applications. Expected lifetime of diaphragm unit under normal conditions: (no pressure shocks or cavitation). Size/Type Stop valve Change-over valve activations activations 38mm/DN4 25. 1. 51mm/DN5 25. 1. 63.5mm/DN65 25. 5. 6.1mm/DN8 5. 5. 11mm/DN1 5. 5. Fig. 1. ARC with valve body combination 2 Valve body combinations Fig. 2. ARC diaphragm stem seal. 2 3 21 22 31 32 Actuator function. Pneumatic downward movement, spring return (NO). Pneumatic upward movement, spring return (NC). Pneumatic upward and downward movement (A/A). Other valves in the same basic design Sanitary Remote-Controlled valve, type SRC. Sanitary Long-Stroke valve, type SRC-LS. Sanitary Manual valve, type SMO. See also PD 619, PD 65142 and PD 689. Note! Activating the valve without internal product pressure reduces lifetime of diaphragm unit.
Pressure drop/capacity diagrams Stop valve 1 5 1 5
Pressure drop/capacity diagrams Change-over valve 1 5 1 5 1 5 1 5
Pressure data for ARC Actuator type / function 1. Pneumatic downward movement, spring return (NO-lower seat). 2. Pneumatic upward movement, spring return (NC-lower seat). 3. Pneumatic upward and downward movement (A/A). 6. Three-position (NO-lower seat).. Three-position (NC-lower seat). Table 1: Standard Valves - Max. static pressure in bar without leakage, valve seat fully closed. Actuator / Valve body Air Actuator Valve size Air consumption combination and direc- pressure type/ Type DN4 DN5 DN65 DN8 DN1 (Litres free air per stroke) tion of pressure (bar) function 38 51 63.5 6.1 11.6 38-63.5 6-11.6 mm mm mm mm mm mm mm 1(NO) 1. 1. 1. 1. 8. 6(NC).2 x Air pressure (bar). x Air pressure (bar) 5 1(NC) ISO. 4. 4. 3. DIN 6. 3.6 3.2 6 6(NO) ISO 1. 5.5 6. 4. DIN 8.5 5. 4.8 2.5 4. 5 2(NC) 1. 1. 1. 1. 6. (NC) 6 1. 1. 1. 1. 9.5 2(NC) ISO 4. 2.5. (NC) DIN 3.4 2.3 5. 3.5 Table 2: Valves with reinforced spring or larger actuator - max. static pressure in bar without leakage, valve seat fully closed. Actuator/valve body Air Actuator Reinforced spring Larger actuator combination and direction pressure type/ Type Valve size Valve size of liquid pressure (bar) function DN4 DN5 DN65 DN8 DN1 38 51 65 6 11.6 38 51 63.5 mm mm mm mm mm mm mm mm 1(NO) 6(NO) 1. 1. 1. 1. 8. 9. 9. 6. 5 ISO 2. 1. 8.5.... 6. DIN 1. 8.5. 1(NO) DIN 1. 1.8.8 1. 1. 6 6(NO) ISO 2. 2. 1. 5 2. 2. 2... 1. 1. 1. 2(NC) (NC) 6 1. 1. 1. 1. 9.5 2(NC) ISO 9. 5.5 3.5. 4.5 1. 9. (NC) DIN. 4.6 5.6 8.5 8.2 6.
Pressure data for ARC Max. pressure in bar for ARC standard valves. Max. pressure in bar for ARC with reinforced spring. Max. pressure in bar for ARC with larger actuator. Table 3: The valve is in the closing phase. Approx. max. pressure at which the valve plug can close by means of the spring or air pressure. Actuator/valve body Actuator Valve size combination and direction type/function DN4 DN5 DN65 DN8 DN1 of pressure 38 51 63.5 6 11.6 mm mm mm mm mm 2(NC) 3.1 4. 4.8 1 1 4.8 6. 6.9 1 1 (NC).4 8.4 9.6 (6 bar) 1(NO) 4.6 5.4 6.5 1 1 2. 2.5 2.9 1 1 6(NO) 8.5 9. 9.4 Table 4: Standard valves - Approx. static pressure in bar against which the valve plug can open by means of the spring or air pressure. Actuator/valve body Actuator Valve size combination and direction type/function DN4 DN5 DN65 DN8 DN1 of liquid pressure 38 51 63,5 6 11,6 mm mm mm mm mm 1 1 1 1 1 1(NO) 1 1 1 1 1 Spring opens Air opens (6 bar) Air opens (6 bar) Spring opens 6(NO) 1 1 1 9.5 5.5 4.5 1 9.5 1(NO).5.5 5.5 1 1 6(NO) 1 1 1 1 1 1 1 9.5 2(NC) 1 1 1 1 1 (NC) 1 1 1 1 1 8 1 9 2(NC) 6 6 6 8.5 6 (NC) 1 1 1 Table 5: The valve is closed - at these liquid pressures the valve will open. Actuator/valve body Actuator Valve size combination and direction type/function DN4 DN5 DN65 DN8 DN1 of pressure (bar) 38 51 63,5 6 11,6 mm mm mm mm mm 2(NC) 5.9 1 1 1 1 1 1 1 1 1 (NC) 1(NO) 1 8 1 1 1 1 1 1 3.5 8.5 1 1 1 (6 bar) 6(NO) 1 1 1
Dimensions (mm) Size 38 51 63.5 6.1 11.6 4 5 65 8 1 mm mm mm mm mm DN DN DN DN DN A 1 31 381 415 482 554 369 38 412 483 553 A 2 383 393 42 52 54 381 392 424 53 53 A 3 442 45 526 611 4 44 44 523 612 3 A 4 45 494 549 634 2 455 493 546 635 26 OD 38.1 5.8 63.5 6.1 11.6 41 53 85 14 ID 34.9 4.6 6.3 2.1 9.6 38 5 66 81 1 t 1.5 1.6 1.6 2. 2. 1.5 1.5 2. 2. 2. C 9 94 113 129 163 9 94 113 129 163 E 5 62 82 8 134 5 62 82 8 134 F 1 12 12 12 2 2 12 12 12 2 2 F 2 15 19 23 23 23 15 19 23 23 23 H 8 8 8 133 133 8 8 8 133 133 M/ISO clamp 21 21 21 21 21 M/ISO male 21 21 21 21 21 M/SMS male 2 2 24 24 35 M/DIN male 22 22 25 3 3 M/BS male 22 22 22 22 22 Weigth (kg): Stop 6. 6.5. 13.5 14.5 6. 6.5. 13.5 14.5 Change-over 6.5..5 1. 1.5 6.5..5 1. 1.5 Options Equipment A) Male parts or clamp liners in accordance with required standard. B) Control & Indication (see chapter in Product Catalogue). C) Damper against water hammer. D) Actuator with stronger spring. E) Larger actuator for valve size 38-63.5 mm, DN 4-65. F) Two-step or three-position actuator. G) Tangential side port valve. A 1 H F 1 A 2 A 3 H F 2 A 4 Materials grades H) Product wetted seals of Nitrile (NBR) or Fluorinated rubber (FPM). C Tools I) Service tool for actuator. E E Ordering Please state the following when ordering: - Connections if not welding ends. - Size. - Valve body combination. - Actuator function, NO, NC or A/A. - Options. t E ID OD a.stop valve. Fig. 3. Dimensions. M t E M ID OD b.change-over valve. PD 65143 GB5 21-1 Sanitary Equipment, Headquarter Alfa Laval AB P O Box 3 SE-221 LUND, Sweden Telephone: +46 46 36 Fax: +46 46 3615 Email: sanitary.equipment@alfalaval.com www.alfalaval.com The information contained herein is correct at the time of issue, but may be subject to change without prior notice.