Fluid Control Systems Selected product range

146Tank Bottom Valve, Manually Operated,Stainless Steel Block Material• Fully integrated in Burkert´sProcess Control Systems• Easy welding designProcess Valves 3235Type 3235 can be combined with...Type 8034Flow meterThe Burkert Tank Bottom Valve system is designedfor control of ultra pure, sterile, aggressive or abrasivefluids. Enables especially optimal filling and emptyingvessels with less dead leg.The valve body consists of two parts- a flange anda body welded together. It is also available in blockmaterial on request (in that case no weld seam). TheTank Bottom Valve has two welding bevels to easethe welding and valve positioning operations.The high quality diaphragms separate hermeticallycritical fluids from the actuator. The manual actuatorin PPS or stainless steel can be sterilized.• Quality certifications /Technical dataOrifice DN (diaphragm) 15.0-100.0MaterialsValve bodyDiaphragmManual actuatorBonnet•316 L stainless steel•316 L/1.4435/BN2Fe < 0.5%/C≤ 0.03%EPDM, PTFE/EPDMPPS, stainless steel 1.4581PPS, stainless steel 1.4581End connectionsWeld end •ISO 1127/ISO 4200•DIN 11850 RG2•ASME BPE•SMS 3008•BS 4825(various other Weld end, Tri-Clamp® and Sterile threaded endconnections are available, please consult for advice)Validation / certification•Certification of Conformity for Raw MaterialEN-ISO 10204 3.1.B•Attestation of compliance with the orderEN-ISO 10204 2.1•Test report EN-ISO 10204 2.2•3A Certification•Certification of Conformity for Pickling andElectropolishing Processes•Certification of Conformity for the SurfaceQuality DIN4762-DIN4768-ISO/4287/1•Certification of Conformity for the 100% Weldinspection or Endoscopy RCCM RSEM ASME•FDA CFR No. 21 177.2600 Certification•Test Certification and Conformity Certificationfor the Final Assembly of Diaphragm Valves•ISO 9001 CertificationSurface finish Ra [µm] Ra [µInch] Ra [Grit #]Internal Internal InternalSatin finished 0.5 20 240Electro polished 0.4 16 280Mirror finished 1) 0.25 10 330TemperaturesMediumAmbient1) Internal Ra < 0.1 µm/4 µInch/500 Grit: on request-10 to +130 °C (14 to 266 °F) (short +150 °C) (302 °F)+5 to +140 °C (41 to 284 °F)Subject to modifications