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.

The device uses neutral gases or air to control the flow rate of liquid or gaseous media, such as water, alcohol, oil, fuel, saline solution, hydraulic fluid, lye, organic solvent, or vapour.

Key features include:

• 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

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 for liquids, steam and gases

Symbol	Description
	Control function A (CF A) Pneumatically operated 2/2-way on/off valve Flow direction below seat Normally closed by spring force
Control function B (CF B)	Control function B (CF B) Pneumatically operated 2/2-way on/off valve Flow direction below seat Normally opened by spring force

Flow direction above seat for steam and gases

Symbol	Description
	Control function A (CF A) Pneumatically operated 2/2-way on/off valve Flow direction above seat Normally closed by spring force

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. The materials comply with the assessment principles (UBA) for materials in contact with drinking water.
• 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 (optional), Fuel gases (CE).

Materials

Note

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). 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

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
15	1/2	70 (M)	91	182	178	156
20	3/4	50 (D)	64.5	174	171	155
20	3/4	70 (M)	91	189	186	163
25	1	50 (D)	64.5	175	173	156
25	1	70 (M)	91	191	188	165
25	1	90 (N)	120	229	228	203
32	1 1/4	70 (M)	91	201	197	174
40	1 1/2	70 (M)	91	204	201	178
50	2	70 (M)	91	223	219	196
65	2 1/2	90 (N)	120	274	273	248
80	3	130 (P)	159	344	344	305

Body with threaded connection

Body with welded connection

Body with clamp connection

Installation and Safety

DANGER

Danger due to lubricant. Lubricant may contaminate the medium. There is a risk of explosion in oxygen applications. Only use lubricant that is permitted for the medium.

WARNING

Risk of injury from high pressure or hot medium. Excessively high pressure or temperatures may damage the device and cause leaks. Observe values for pressure and medium temperature indicated on the type label.

• Installation position: Any, preferably actuator facing up.
• Flow direction: Note the flow direction marking on the body.
• Welding: Before welding in the valve body, remove the actuator from the valve body to prevent damage to the seals and actuator components.
• Pneumatic connection: Use only hoses which are authorised for the indicated pressure and medium temperature range. In aggressive environments, drain open pneumatic connections into a neutral atmosphere using a pneumatic hose.