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

General Technical Data

Property	Value
Design	Angle seat valve
Nominal diameter	DN 10...DN 80, NPS 3/8...NPS 3
Operating pressure	0...25 bar(g), vacuum variants...-0.9 bar(g)
Medium temperature	-40 °C...+230 °C
Ambient temperature	-10 °C...+100 °C
Valve body material	Stainless steel CF3M
Seat seal	PTFE, PEEK (Option)
Operating medium	Steam, water, neutral gases, alcohols, oils, fuels, hydraulic fluids, salt solutions, alkalis, organic solvents, oxygen and fuel gases

Control Functions

Flow Direction Above Seat

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.

• Control function A (CFA): Pneumatically operated 2/2-way on/off valve. Normally closed by spring force.
• Control function B (CFB): Pneumatically operated 2/2-way on/off valve. Normally opened by spring force.
• Control function I (CFI): Pneumatically actuated on/off valve on both sides. Rest position not defined (unpressurised).

Materials

• Actuator cover: PPS
• Actuator casing: Stainless steel 1.4561 (316Ti)
• Packing gland: PTFE V-Rings (filled), with spring compensation
• Spindle guide: PEEK
• Valve body: Stainless steel CF3M

Approvals and Conformities

• Explosion protection: ATEX II 2G Ex h IIC T4…T2 Gb / II 2D Ex h IIIC T135 °C…T300 °C Db, IECEx
• Drinking water: Suitable for use in drinking water applications (TrinkwasserV)
• Foods and beverages/Hygiene: FDA, USP, EC Regulation 1935/2004, China food GB Standards
• Others: DNV GL classification, Oxygen suitability, Fuel gases, TA Luft

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. 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.

Networking and Combination

The angle seat valve Type 2100 can be combined with the position feedback Type 8690/8697 and the control head Type 8691/8695 to form the valve system on/off ELEMENT Type 8801-YE.