Burkert 20022618 Type 2100 is a pneumatically operated 2/2-way angle seat valve specially optimised for decentralized process automation. It fulfils the tough criteria in process environments. Its unique design allows easy integration of automation units in all expansion stages, from electrical/optical position feedback to pneumatic control and integrated fieldbus interface. Maximum service life and tightness are achieved by the proven self-adjusting V-seal packing gland. The highly integrated system of valve and automation unit is characterised by its compact and smooth design, integrated pilot air ducts, protection classes IP65/67, NEMA Type 4X, and high resistance to chemicals.

Features

• High flow rates and long service life
• Easy integration of automation units with ELEMENT
• Flow-optimised stainless steel valve body with sleeve, clamp, or weld connection
• Suitable for steam, water, neutral gases, alcohols, oils, fuels, hydraulic fluids, salt solutions, alkalis, and organic solvents

Control Functions

WARNING

Risk of damage due to bursting pipes and bursting equipment when the flow is above the seat. In the case of liquid mediums, water hammer can occur causing pipes and the device to burst. Do not use valves with flow above the seat for liquid mediums.

• Control function A (CFA): Pneumatically operated 2/2-way on/off valve. Flow direction below or above seat. Normally closed by spring force.
• Control function B (CFB): Pneumatically operated 2/2-way on/off valve. Flow direction below seat. Normally opened by spring force.
• Control function I (CFI): Pneumatically operated 2/2-way on/off valve on both sides. Rest position not defined (unpressurised).

Approvals and Conformities

• Explosion Protection: EPS 18 ATEX 2 008 X II 2G Ex h IIC T4…T2 Gb / II 2D Ex h IIIC T135 °C…T300 °C Db; IECEx EPS 18.0007X.
• Drinking Water: Suitable for use in drinking water applications (UBA).
• Foods and Beverages/Hygiene: FDA, USP, EC Regulation 1935/2004, China food GB Standards.
• Others: DNV GL classification, Oxygen suitability (optional), Fuel gases (CE), TA Luft.

Materials

No.	Element	Material
4	Actuator cover	PPS
5	Actuator casing	Stainless steel 1.4561 (316Ti)
6	Piston seal	FKM
9	Packing gland	PTFE V-Rings (filled), with spring compensation
11	Spindle guide	PEEK
13	Swivel plate	Stainless steel 1.4401 (316)/1.4404 (316L)
14	Seat seal	PTFE, PEEK (Option)
15	Valve body	Stainless steel CF3M

Technical Data

• Operating pressure: 0 to 25 bar(g), vacuum variants down to -0.9 bar(g) (option).
• Nominal pressure: PN 25 (DIN EN 1333), Class 150 (DIN EN 1759).
• Pilot pressure: 2.5 to 10 bar(g).
• Medium temperature: -40 °C to +230 °C (depending on variant and seal).
• Ambient temperature: -10 °C to +100 °C.
• Control medium: Air, neutral gases.

Flow Direction

Flow direction below the seat Only use flow direction below the seat for liquid media, gases, and vapours. As the medium is present under the swivel plate, the operating pressure contributes to the opening of the valve.

Flow direction above the seat Only use flow direction above the seat for gases and vapours, and valves with control function A. As the medium is present above the swivel plate, the operating pressure contributes to the closing of the valve.

Installation Notes

TIP

The position of the pilot air ports can be seamlessly changed by turning the actuator 360°. To prevent damage, the valve must be in the open position when the actuator is turned.

DANGER

Danger due to lubricant Lubricant may contaminate the medium. There is a risk of explosion in oxygen applications. Only use lubricant that is permitted for the medium.

DANGER

Explosion Hazard due to Electrostatic Charge! If the device is used in a potentially explosive atmosphere, ensure proper grounding of the actuator and valve body to prevent electrostatic discharge.