Burkert Type 2100 pneumatically operated 2/2-way angle seat valve is specially optimised for decentralized process automation and 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
• 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

Combinations

The Type 2100 can be combined with pneumatic control units (Type 8690, 8697) and control heads (Type 8691, 8695) for decentralized automation.

Design and Components

General Technical Data

Property	Value
Design	Angle seat valve
Nominal diameter	DN 10...DN 80, NPS 3/8...NPS 3
Safety setting	Normally closed (control function A), normally open (control function B)
Flow direction	Flow to open (below seat), flow to close (above seat)
Operating pressure	0 bar(g)...25 bar(g), vacuum variants...-0.9 bar(g) (option)
Medium temperature	-40 °C...+230 °C
Ambient temperature	-10 °C...+100 °C
Valve body material	Stainless steel CF3M
Seat seal	PTFE, PEEK (Option)

Control Functions and Flow Direction

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.

Flow direction below seat for liquids, steam and gases

• Control function A (CF A): Pneumatically operated 2/2-way on/off valve. Normally closed by spring force.
• Control function B (CF B): Pneumatically operated 2/2-way on/off valve. Normally opened by spring force.

Flow direction above seat for steam and gases

• Control function A (CF A): Pneumatically operated 2/2-way on/off valve. Normally closed by spring force.

Materials

Element	Material
Actuator cover	PPS
Actuator casing	Stainless steel 1.4561 (316Ti)
Packing gland	PTFE V-Rings (filled), with spring compensation
Spindle	Stainless steel 1.4401 (316)/1.4404 (316L)
Swivel plate	Stainless steel 1.4401 (316)/1.4404 (316L)
Seat seal	PTFE, PEEK (Option)
Valve body	Stainless steel CF3M

Approvals and Conformities

• Explosion protection: ATEX / IECEx II 2G Ex h IIC T4…T2 Gb / II 2D Ex h IIIC T135 °C…T300 °C Db
• Drinking water: Suitable for use in drinking water applications (TrinkwasserV).
• Foods and beverages/Hygiene: FDA, USP, EC Regulation 1935/2004, China food GB Standards.
• Others: DNV GL classification, Oxygen suitability, Fuel gases, TA Luft.

Installation and Safety

Explosion hazard in potentially explosive areas!

If the device has the PX51 code (ATEX/IECEx), ensure proper grounding of the actuator and valve body to prevent electrostatic charging. Do not use magnetic coils in areas with strong charge-generating processes. Only use cleaning agents certified for explosive environments.

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.