Type 2105 Pneumatically Operated Tank Bottom Valve

Brand: Burkert Fluid Control Systems

The Bürkert Tank Bottom Valve Type 2105 is designed for control of ultra pure, sterile, aggressive or abrasive fluids. Enables especially optimal emptying vessels with less dead leg.

The valve body consists of a block with with no weld seam, machined out of high quality stainless steel. The Tank Bottom Valve has two welding bevels to ease the welding and valve positioning operations.

The high quality diaphragms separate hermetically critical fluids from the actuator. The pneumatic actuator is optimized for decentralized automation through ELEMENT pneumatic automation units.

The fully integrated system has a compact and smooth design, integrated pneumatic lines, IP65/67, NEMA Type 4X protection class and superior chemical resistance.
  • Hermetical separation of fluids from the operating mechanism by diaphragm
  • Quality certifications FDA/3A


Environmental Protection

  • IP65/IP67
  • NEMA Type 4X

Certifications & Approvals

  • 3A
  • USP
  • FDA

Ambient Temperature

  • -10° to 60° C

Medium Temperature

  • -10° to 143° C

Enclosure/Body Material

  • Body: Stainless Steel

Port Connection

  • Clamp, Welded


  • Neutral Gases and Fluids, Highly Purified, Sterile, Aggressive or Abrasive Medium

Diaphragm Material

  • EPDM (AD), PTFE/EPDM (EA), Advanced PTFE/EPDM (EU), Gylon/EPDM Laminated (ER)

Diaphragm Size

  • 8 to 65

Materials of Construction

  • Block Body (VH): Stainless Steel 1.4435/316 L
  • Block Body (VI): Stainless Steel 1.4435/BN2/ASME BPE, Fe < 0.5 %/C ≤ 0.03 %
  • Actuator: PPS
  • Actuator Cover: Stainless Steel 1.4561 (316Ti)

Pilot Pressure

  • 7 bar, 10 bar

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