BURKERT Type 3361 electromotive 2-way globe control valve is the solution for control tasks under demanding operating conditions. The electromotive actuator with ball screw positions the control cone with the highest precision. A unique feature is its high positioning speed of up to 6 mm/s that reacts almost delay-free to process signals and can be varied according to customer demands. Pressure variations or shocks in the medium are not transferred to the valve position.

Each flow-optimised valve body can be equipped with up to 5 different valve seats for precise adaptation to customer needs. If necessary, the safety position can be approached by an optional energy storage in case of power failure. The actuator and valve are perfectly adapted to each other with a closed design and robust surface, ensuring the hygienic requirements of fast and residue-free cleaning. Harsh environmental conditions are no problem for the Type 3361 due to its IP65/IP67 protection degree and high impact and vibration resistance.

Product Features

• Highly precise, dynamic closed-loop control: Ensures accurate flow regulation.
• Weather, impact, and vibration resistant design: Suitable for harsh industrial environments.
• Removable valve seats: Several Kvs values available per port size.
• Controller variants: Position controller and process controller available.
• Fieldbus compatibility: EtherNet/IP, PROFINET, Modbus TCP, EtherCAT (optional via integrated gateway).

General Technical Data

Property	Value
Design	Globe control valve
Nominal diameter	DN 10 to 100, NPS 3/8 to 4
Safety setting (power failure)	With SAFEPOS energy-pack: open, closed or freely programmable. Without: blocked in last position.
Flow direction	Against closing direction (below seat)
Operating pressure	0 to 25 bar(g), 40 bar(g) on request. Vacuum variant down to -0.9 bar(g)
Nominal pressure	PN 25/PN 40 (DIN EN 1333), Class 150 (DIN EN 1759)
Kvs value	0.1 to 140 m³/h
Seat leakage	Class III, IV and VI (DIN EN 60534-4)
Operating voltage	24 V DC ± 10 % (maximum residual ripple 10 %)
Medium temperature	-40 °C to +230 °C
Degree of protection	IP65/IP67 (DIN EN 60529), NEMA 4X

Approvals and Conformities

Depending on the variant, the Type 3361 complies with various international standards:

• Explosion Protection: ATEX / IECEx (Zone 2/22, Category 3).
• North America: UL Listed for USA and Canada.
• Drinking Water: Suitable for drinking water applications up to +85 °C.
• Food and Beverage: FDA, USP Class VI, EC Regulation 1935/2004, China food GB Standards.
• Special Media: Oxygen and Hydrogen suitability tested.

Materials

Actuator (AG2 Variant)

Component	Material
Display housing/blind cover	PPS (standard), stainless steel 1.4301 (for ATEX/IECEx)
Actuator cover	PPS
Seal	EPDM
Actuator housing	Powder-coated aluminium
Actuator base	PPS

Valve Body

Component	Material
Spindle	Stainless steel 1.4401 (316)/1.4404 (316L)
Spindle seal	PTFE V-seals (filled) with spring compensation
Valve body seal	Graphite or PTFE
Seat seal	Stainless steel 1.4571 (optionally hardened), PTFE or PEEK
Control cone	Stainless steel 1.4571 (optionally hardened)
Valve body	Stainless steel CF3M

Operating Limits for Seat Seal

Seat Seal Selection

For particularly demanding process conditions such as cavitation, erosion by wet steam, or abrasive media, hardened cones and seats can be used to significantly increase the service life.

Tight sealing required	Leakage class (DIN EN 60534-4)	Medium temperature	Seat seal
No (Additional shut-off valve recommended)	III/IV (metal seals)	-40 °C to +230 °C	Stainless steel
Yes (Additional shut-off valve often unnecessary)	VI (soft seals)	-40 °C to +130 °C	PTFE
Yes	VI (soft seals)	-10 °C to +230 °C	PEEK