Burkert 309101 Type 2100 is a pneumatically operated 2/2-way angle seat valve specially optimized for decentralized process automation and fulfills tough criteria in process environments. Its unique design allows easy integration of automation units in all expansion stages. 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 characterized by its compact and smooth design, integrated pilot air ducts, high resistance to chemicals, and IP65/67 protection.

Key Features:

• High flow rates and long service life
• Flow-optimized stainless steel valve body with threaded connection
• Suitable for steam and gases
• Easy integration of automation units with ELEMENT

Device Components

1. Transparent cap with position
2. Actuator cover
3. Actuator housing
4. Relief bore
5. Valve body
6. Flow direction marking
7. Port connection
8. Body connection
9. Actuator connection
10. Pilot air port 1
11. Pilot air port 2

Principle of Operation

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

Flow direction above the seat

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.

As the medium is present above the swivel plate, the operating pressure contributes to the closing of the valve. The operating pressure also supports the sealing of the valve seat. This flow direction is strictly intended for gases and steam.

Technical Data

Property	Value
Design	Angle seat valve
Safety setting	Normally closed (control function A)
Flow direction	Flow to close (above seat)
Nominal pressure	PN 25 (DIN EN 1333)
Operating medium	Steam, neutral gases, oxygen and fuel gases (with specific approvals)
Medium temperature	-10 °C to +185 °C
Ambient temperature	-10 °C to +100 °C
Degree of protection	IP65/67
Installation position	As required, preferably with actuator in upright position

Materials

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

Dimensions

Body with threaded connection

DN	NPS	G (DIN ISO 228-1)	NPT (ASME B1.20.1)	RC (ISO 7-1)	CM	LM	AF
8	1/4	14	10	9.7	24	75	-
10	3/8	12	10.3	10.1	24	65	27
15	1/2	14	13.7	13.2	24	65	27
20	3/4	16	14.0	14.5	27	75	34
25	1	18	16.8	16.8	29.5	90	41
32	1 1/4	16	17.3	19.1	36	110	50
40	1 1/2	18	17.3	19.1	35	120	55
50	2	24	17.6	23.4	45	150	70
65	2 1/2	26	23.7	26.7	57	185	85
80	3	28	-	-	71	220	100

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.

Derating the operating pressure as per DIN EN 12516-1/PN25:

Temperature [°C]	Pressure [bar]
-10...+50	25.0
100	24.5
150	22.4
200	20.3
230	19.0

Safety Instructions for Potentially Explosive Atmospheres (ATEX)

DANGER

Explosion hazard due to electrostatic charging! If statically charged devices or persons discharge suddenly, there is an explosion hazard in the potentially explosive area.

• Take appropriate measures to ensure that no electrostatic charges can build up in the potentially explosive area.
• Clean the device surface by gently wiping it with a damp or antistatic cloth only.
• Ground the actuator and the valve body.
• If a plastic valve body is used, ground the actuator separately.

Device Grounding:

1. Ground the valve body. To establish potential equalization, ground the valve body to the piping system using a conductive connection.
2. Exposed metal parts that are not integrated into the valve potential equalization (PA) must be included in the PA by the customer via an additional PA connection.
3. Ground conductive parts of the device individually.