Burkert Type 2100 (SKU 20073155) 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

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 and Flow Direction

Flow direction below the 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 the seat

Only use flow direction above the seat for gases and vapours, and for valves with control function A (closed by spring force in rest position). 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.

DANGER

Bursting lines and bursting device with flow direction above the seat In the case of liquid media, a pressure surge can lead to the bursting of lines and device. Do not use valves with flow direction above the seat for liquid media.

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 assessment principles).
• Foods and beverages/Hygiene: FDA compliant, USP biocompatible, EC Regulation 1935/2004 compliant, China food GB Standards compliant.
• DNV GL classification: Accepted for installation on all vessels classed by DNV GL.
• Oxygen: Optional suitability for gaseous oxygen.
• Fuel gases: Complies with Regulation (EU) 2016/426 and DVGW DIN EN 161 / DIN EN 16678.

Material Specifications

INFO

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

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

Dimensions

Actuator

Nominal diameter (DN)	Actuator size ∅	∅ A [mm]	B [mm]	H [mm]	K/M [mm]
15	50 (D)	64.5	166	163	147
15	70 (M)	91	182	178	156
20	50 (D)	64.5	174	171	155
20	70 (M)	91	189	186	163
25	50 (D)	64.5	175	173	156
25	70 (M)	91	191	188	165
25	90 (N)	120	229	228	203

Body with welded connection

Nominal diameter (DN)	DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B (ES / CS / LS / ∅ DS / WS)	DIN 11850-2 / DIN 11866 series A (ES / CS / LS / ∅ DS / WS)
15	19 / 34 / 100 / 21.3 / 1.6	19 / 34 / 100 / 19 / 1.5
20	20 / 39 / 115 / 26.9 / 1.6	20 / 39 / 115 / 23 / 1.5
25	26 / 43 / 130 / 33.7 / 2.0	26 / 43 / 130 / 29 / 1.5

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 and Installation Notes

WARNING

Danger from wear and tear on device If there is wear and tear, medium can leak out of the relief bore and people may be seriously injured. The relief bore must be regularly inspected for any medium leakages. If media are hazardous, safeguard the environment around the relief bore.

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. Only use fresh air for generating compressed air for the device.

TIP

Installation Installation position is any, preferably with the actuator facing up. Note the flow direction and make sure that pipelines are in alignment. Remove any soiling from pipelines before installation.