The Burkert Type 2100 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

No.	Component	No.	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

General Technical Data

Product properties
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

Principle of Operation

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.

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)
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

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).
• Foods and beverages/Hygiene: FDA, USP, EC Regulation 1935/2004, China food GB Standards.
• Others: DNV GL classification, Suitability for oxygen, Fuel gases (CE), TA Luft.