Diaphragm Shut-Off valves: D-Series Medium Temperature - QUALIFLOW - #1

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www.qualiflow.com the catalogue D 10-03 V02 Valves & accessories 395, rue Louis Lépine - BP7 - 34935 Montpellier - Cedex 9 - France - sales @qualiflow.com - tel# (0)4 67 99 47 47 fax# (0)4 67 99 47 48 D-Series Middle Temperature (180°C) Diaphragm Shut-Off Valve Ratings Specifications Dead volume 1.12 cm3 with butt weld ends (0.068in3) Flow coefficient Cv=0.24 Orifice size 4.5 mm (0.177in) Temperature Operating -10°C to 180°C (14°F to 356°F) Pressure Ratings Valve Vacuum to 10 bar (145 psi) Pneumatic operator 5–7 bar (72–100 psi) FLOW DATAMax flow / ÄPN2 flow (L/mn)at 21°CÄP ( bars )0.10.51230100170220 Valve Life Expectancy > 200,000 cycles Helium Leak Rate External <5.10-10 atm cm3/s Across seat <1.10-8 atm cm3/s Features Body Design Fully customizable configuration, offering wide range of use. Various fitting configurations with standard Moduline dimensions. Metal / metal sealing between diaphragm and valve’s body. All tube connections are TIG orbital welded. Extremely low internal volume and wetted area. Materials Body 316L VAR Stainless Steel Q+ Process electropolished, Ra..0.15 ìm (6 ìin) Diaphragm NiCo Alloy (Elgiloy®) Seat Polyamide (Vespel®) Actuator Design Interchangeable actuators : manual ¼ turn or toggle, pneumatic NO or NC. Permanent color identification for NO or NC. Black anodized actuator in aluminum. Actuator O-ring in Viton®. Verification & Packaging 100% inspection with boroscope. Warranty and leak test certificate. Vacuum sealed double packaging with N2 purge. Options & Accessories Special mounting plates. Surface mounting (C-seal, others upon request).