Burkert 20026062 Type 2100 is a pneumatically operated 2/2-way angle seat valve ELEMENT designed 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 specific SKU 20026062 features a stainless steel body, PTFE seat seal, 3/4 inch clamp connection (DN20), and operates normally closed (Control Function A). It handles operating pressures from -0.9 to 16 bar and medium temperatures from -10 °C to 185 °C.

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

Type Description

The Type 2100 angle seat valve is specially optimised for decentralized process automation. 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 is characterised by its compact and smooth design, integrated pilot air ducts, protection classes IP65/67, NEMA Type 4X, and high resistance to chemicals.

Product Overview

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

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.

Flow Direction Below 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 Seat

Only use flow direction above the seat for gases and vapours (Control function A). As the medium is present above the swivel plate, the operating pressure contributes to the closing of the valve and supports the sealing of the valve seat.

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 (Code of Federal Regulations), USP (United States Pharmacopeial Convention), EC Regulation 1935/2004, China food GB Standards.
• Others: DNV GL classification, Suitability for oxygen, Fuel gases (CE), TA Luft.

Materials

No.	Element	Material
1	Ground terminal	Stainless steel 1.4301/1.4305 only for ATEX variant
2	Optical position indicator	Polysulfone PSU
3	Pilot air ports	Push-in connector PP (Standard)
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, PEEK (Option)
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

Performance Specifications

Operating Limits for Ambient and Medium Temperature

Pilot air port	Medium temperature for PTFE and PEEK seal [°C]	Ambient temperature [°C]
Push-in connector	-10...+230	-10...+60
Threaded bushing	-10...+230	-10...+100

Operating Limits for Optional Variants

• High-temperature variant: Suitable for applications with steam, neutral gases and other heat transfer mediums up to +230 °C.
• Water variant: For applications with water up to +200 °C, a special configuration of the packing gland increases service life significantly.
• Drinking water variant: Wetted materials are tested for suitability with drinking water up to +85 °C.
• Vacuum variant: Without leakage bore, suitable for pressures down to -0.9 bar(g).
• Low-temperature variant: Suitable for minimum medium temperatures down to -40 °C.
• Variant for oxygen: Non-metallic wetted materials are tested for suitability with oxygen up to 25 bar(g) and +60 °C.

Safety Instructions

DANGER

Medium under pressure Medium under pressure can seriously injure people. In the event of overpressure or pressure surges, the device or lines can burst. Before working on the device or system, switch off the pressure. Vent or empty the lines.

WARNING

Contaminated pilot air The control exhaust air of the device can be contaminated with lubricants and damage the health of people and the environment. Dissipate control exhaust air appropriately.

Troubleshooting

Cause	Solution
Actuator does not switch
Pilot air port interchanged	Connect the pilot air correctly (CFA: Pilot air port 1)
Pilot pressure too low	Observe pressure data on the type label
Operating pressure too high	Observe pressure data on the type label
Valve is not tight
Dirt between seal and valve seat	Install the dirt trap
Valve seat seal worn	Install the new swivel plate
Valve is leaking on the relief bore
Packing gland worn	Replace the packing gland or actuator