Burkert Type 2100 pneumatically operated 2/2-way angle seat valve is specially optimized for decentralized process automation and fulfills 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 characterized by its compact and smooth design, integrated pilot air ducts, protection classes IP65/67, NEMA Type 4X, and high resistance to chemicals.

Product Overview

2/2-Way Valve

Component	Component
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

2/3-Way Valve

Component	Component
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	12 Nut
13 Locknut

General Technical Data

Property	Value
Design	Angle seat valve
Nominal diameter	DN 10...DN 80, NPS 3/8...NPS 3
Safety setting	Normally closed (control function A), normally open (control function B)
Flow direction	Flow to open (below seat), flow to close (above seat)
Operating pressure	0 bar(g)...25 bar(g), vacuum variants...-0.9 bar(g) (option)
Nominal pressure	PN 25 (DIN EN 1333), Class 150 (DIN EN 1759)
Pilot pressure	2.5 bar(g)...10 bar(g)
Seat leakage	Leakage rate A (DIN EN 12266-1), seat seal PTFE and PEEK, test medium air
Operating medium	Steam, water, neutral gases, alcohols, oils, fuels, hydraulic fluids, salt solutions, alkalis, organic solvents, oxygen and fuel gases
Medium temperature	-40 °C...+230 °C
Viscosity	Max. 600 mm²/s
Control medium	Air, neutral gases
Ambient temperature	-10 °C...+100 °C
Degree of protection	IP65/67
Installation position	As required, preferably with actuator in upright position

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 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.

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.

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). On request: Thread G 1/8" Stainless steel 1.4305
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

Note

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

Operating Limits

Application limits for ambient temperature 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

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. Materials comply with UBA assessment principles.
• Foods and Beverages/Hygiene: FDA Code of Federal Regulations compliant, USP biocompatible, EC Regulation 1935/2004 compliant, China food GB Standards compliant.
• Others: DNV GL classification, Suitability for oxygen, Fuel gases (Regulation EU 2016/426), TA Luft.

Safety Instructions for Potentially Explosive Atmospheres (ATEX)

EXPLOSION HAZARD DUE TO ELECTROSTATIC CHARGE

There is a risk of explosion in potentially explosive areas if there is a sudden discharge of electrostatically charged devices or individuals.

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