Burkert 20067832 is a Type 2100 pneumatically operated 2/2-way angle seat valve optimized for decentralized process automation. It features a flow-optimized stainless steel CF3M valve body with a DN 15 weld end connection and a self-adjusting V-seal packing gland. The highly integrated system of valve and automation unit provides protection classes IP65/67, NEMA Type 4X, and high resistance to chemicals.

Technical Data

Feature	Specification
Control function	A - normally closed (NC) by spring force
Flow direction	Below seat (flow to open)
Operating pressure	0 to 25 bar
Pilot pressure	5.2 to 10 bar
Medium temperature	-10 °C to +185 °C
Ambient temperature	-10 °C to +100 °C
Kv value (water)	5.3 m³/h
Nominal pressure	PN 25 (DIN EN 1333), Class 150 (DIN EN 1759)
Seat leakage	Leakage rate A (DIN EN 12266-1), test medium air

Operating Limits

In addition to the maximum operating pressures, the operating range of Bürkert process valves is limited by the nominal pressure according to the relevant standard.

Materials

The lubricants for the packing gland and actuator are classified according to NSF H1.

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

Dimensions

Actuator

Body with Welded Connection

Principle of Operation

Flow Direction Below the Seat

As the medium is present under the swivel plate, the operating pressure contributes to the opening of the valve. This flow direction is used for liquid media, gases, and vapours.

Explosion Hazard in Potentially Explosive Atmospheres

If the device has an ATEX/IECEx approval (e.g., EPS 18 ATEX 2 008 X / IECEx EPS 18.0007 X), there is an explosion risk from electrostatic charging.

• Take appropriate measures to ensure that no electrostatic charge can build up in the potentially explosive area.
• Only wipe the device surfaces gently with a damp or antistatic cloth.
• Ground the actuator and the valve body.