BURKERT 20024531 Type 2100 is a pneumatically operated 2/2-way angle seat valve specially optimized for decentralized process automation. It fulfills tough criteria in process environments, offering high flow rates, long service life, and easy integration of automation units. The unique design features a flow-optimized stainless steel valve body and a proven self-adjusting V-seal packing gland for maximum tightness. This specific model (SKU: 20024531) is configured with a DN40 (1 1/2 inch) clamp connection, PTFE seat seal, and operates with flow below the seat (Control Function A - normally closed).

Key Features

• High flow rates and long service life
• Easy integration of automation units with ELEMENT
• Flow-optimized stainless steel valve body with clamp connection
• Suitable for steam, water, neutral gases, alcohols, oils, and organic solvents
• ATEX and Food (EC 1935/2004) compliant

Specifications for Model 20024531

Attribute	Value
Port Connection	Clamp 1 1/2 inch (ASME BPE)
Nominal Size	DN 40 (Inner diameter: 34.8 mm, Outer diameter: 38.1 mm)
Control Function	A - normally closed (NC)
Flow Direction	Below seat
Nominal Pressure	0 - 6 bar
Control Pressure	4.8 - 10 bar
Medium Temperature	-10 °C to 185 °C
Ambient Temperature	-10 °C to 100 °C
Kv Value (Water)	35 m³/h
Installation Length	200 mm
Valve Body Material	Stainless steel CF3M
Seat Seal Material	PTFE (Polytetrafluorethylene)
Actuator Material	PPS (Polyphenylene sulphide)

General Technical Data

Product Properties	Description
Design	Angle seat valve
Safety setting	Normally closed (control function A)
Operating medium	Steam, water, neutral gases, alcohols, oils, fuels, hydraulic fluids, salt solutions, alkalis, organic solvents
Viscosity	Max. 600 mm²/s
Control medium	Air, neutral gases
Degree of protection	IP65/67
Installation position	As required, preferably with actuator in upright position

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 (CF A): Pneumatically operated 2/2-way on/off valve. Flow direction below seat. Normally closed by spring force.

Materials

No.	Element	Material
4	Actuator cover	PPS
5	Actuator casing	Stainless steel 1.4561 (316Ti)
6	Piston seal	FKM
7	Spring	Stainless steel 1.4310
8	Pipe	Stainless steel 1.4401 (316)/1.4404 (316L)
9	Packing gland	PTFE V-Rings (filled), with spring compensation
10	Spindle	Stainless steel 1.4401 (316)/1.4404 (316L)
11	Spindle guide	PEEK
12	Body seal	Graphite, PTFE (Option)
13	Swivel plate	Stainless steel 1.4401 (316)/1.4404 (316L)
14	Seat seal	PTFE
15	Valve body	Stainless steel CF3M

INFO

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

Dimensions

Actuator

Body with Clamp Connection

Operating Limits

Operating limits for medium temperature and operating pressure

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.

Operating limits for ambient and medium temperature

ATEX Safety Instructions

For devices with ATEX approval (e.g., EPS 18 ATEX 2 008 X / IECEx EPS 18.0007 X mech. Ex h IIC T4…T2 Gb / Ex h IIIC T135 °C…T300 °C Db), the following special conditions apply in potentially explosive atmospheres:

Explosion Hazard due to Electrostatic Discharge!

If statically charged devices or persons discharge suddenly, there is a risk of explosion in the potentially explosive area.

• Take appropriate measures to ensure that electrostatic charges cannot build up in the potentially explosive area.
• Only clean the device surface by wiping gently with a damp or anti-static cloth.
• Ground the actuator and valve body.

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: Metal parts not integrated into the valve's potential equalization (PA) must be incorporated into the PA by the customer via an additional PA connection.
3. Ground conductive parts: Conductive parts must be grounded separately. Install a grounding strap clip or grounding terminal as shown below and ground via a grounding point.