Bürkert Tank Bottom Diaphragm Valve with Pneumatic Actuator in Stainless Steel (Type ELEMENT) for Decentralised Automation

The externally controlled diaphragm valve Type 2105 consists of a pneumatically operated piston actuator, a diaphragm and a tank bottom valve body. The proven and robust actuator with stainless steel housing ensures use in hygienic or aggressive ambient conditions. The flow-efficient valve bodies with little dead space enable high flow rates and a wide range of possible uses. The valve body and the diaphragm are available in all common materials and variants. The actuator has a compact, autoclavable design with a large stainless steel housing and gap-free seals. The integration of automation units Type ELEMENT is possible in all configuration levels (can be retrofitted); a fieldbus interface can also be integrated. An explosion-proof ATEX/IECEx device variant is available. It is a compact, smooth-surfaced and highly integrated system consisting of a valve and an automation unit with integrated pilot air ducts (no intake of ambient air). The add-on body is optionally available in plastic or stainless steel (can be rotated 360°). The valve offers the degrees of protection IP65/67 and NEMA Type 4X and displays high chemical resistance.

Block body (VH)

Stainless steel block material 1.4435 according to DIN EN 10088 and 316L according to ASTM

Block body (VI)

Stainless steel block material 1.4435 according to DIN EN 10088 and 316L according to ASME

Diaphragm

EPDM (AD) , PTFE/EPDM (EA) , Advanced PTFE/EPDM (EU) , laminate of GYLON® and EPDM

Actuator

DN 08…65, PPS

Actuator casing

DN 08…65, stainless steel 1.4561 (316Ti)

Diaphragm size

8…100

Block body (VH/VI)

Internally electrically polished: Ra ≤ 0.38 μm (NO17) (ASME BPE SF4 / DIN HE4)

Maximum pilot pressure (SF A)

10 bar

Pilot air port

Push-in connector for outer diameter, Ø 6 mm or ¼" (standard), thread G ⅛"

EPDM (AD)

- 10…+ 143 °C (steam sterilisation + 150 °C for 60 min)

PTFE/EPDM (EA)

- 10…+ 130 °C (steam sterilisation + 140 °C for 60 min)

Advanced PTFE/EPDM (EU)

- 5…+ 143 °C (steam sterilisation + 150 °C for 60 min)

Nominal diameter

DN 06…DN 100 (⅛"…4")

Welded connection

DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B

Clamp connection

DIN 32676 series A (DIN pipe)

HS Code

8481.80

• Burkert 2105
• Buerkert 2105
• Bürkert 2105
• Type 2105
• Burkert Type 2105