Burkert Type 2100 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.

Key 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 and Principle of Operation

The closing force is transferred by a spindle connected to the actuator piston. In Control Function A (CFA), the spring force generates the closing force on the swivel plate (normally closed by spring force).

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. 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.

Material Specifications

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, PEEK (Option)
15	Valve body	Stainless steel CF3M

INFO

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

Dimensions

Actuator

Nominal diameter (DN)	NPS	Actuator size ∅	∅ A [mm]	B [mm]	H [mm]	K/M [mm]
15	1/2	50 (D)	64.5	166	163	147
20	3/4	50 (D)	64.5	174	171	155
25	1	50 (D)	64.5	175	173	156

Body with Clamp Connection (ASME BPE)

NPS	LC [mm]	CC [mm]	∅ D1 C [mm]	∅ D2 C [mm]	SC [mm]
1/2	130	49.0	25.0	12.7	1.65
3/4	150	56.5	25.0	19.05	1.65
1	160	58.0	50.5	25.4	1.65
1 1/2	200	69.0	50.5	38.1	1.65
2	230	77.5	64.0	50.8	1.65

Performance Specifications

Operating Limits for Ambient and Medium Temperature

Fluidic Data (Clamp ASME BPE, Flow Below Seat)

DN	NPS	Actuator size ∅	Kv value water [m³/h]	Pilot pressure min. [bar(g)]	Operating pressure max. (PTFE) [bar(g)]
15	1/2	50 (D)	1.6	5.2	25
20	3/4	50 (D)	8.4	5.2	16
25	1	50 (D)	13	5.2	9

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 (TrinkwasserV).
• Foods and Beverages/Hygiene: FDA (Code of Federal Regulations), USP (United States Pharmacopeial Convention), EC Regulation 1935/2004, China food GB Standards.
• 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.
• TA Luft: Technical instruction on air quality control.