BURKERT Type 3361 electromotive 2-way globe control valve is designed for control tasks under demanding operating conditions. The electromotive actuator with a ball screw positions the control cone with high precision. The valve features a high positioning speed of up to 6 mm/s, reacting almost delay-free to process signals. 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 specific requirements.

The actuator and valve are adapted to each other with a closed design and robust surface, ensuring the hygienic requirements of fast and residue-free cleaning. The Type 3361 operates reliably in harsh environmental conditions due to its IP65/IP67 degree of protection and high impact and vibration resistance. The fieldbus-compatible Type 3361 provides functions for process monitoring, valve diagnostics, and predictive maintenance.

Product Features

• Highly precise, dynamic closed-loop control: Position controller and process controller variants are available.
• Weather, impact, and vibration resistant design: Suitable for harsh environments with IP65/IP67 and NEMA 4X protection.
• Safety position: An optional SAFEPOS energy-pack allows the valve to approach a safe position (open, closed, or freely programmable) in case of power failure.
• Multiple port connections: Available with flange, threaded, welded, and clamp connections.
• Fieldbus communication: Optional integration for EtherNet/IP, PROFINET, Modbus TCP, and EtherCAT.

Technical Data

Feature	Specification
Design	Globe control valve
Nominal diameter	DN 10 to DN 100, NPS 3/8 to 4
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)
Medium temperature	-40 °C to +230 °C
Ambient temperature	-25 °C to +65 °C (without additional modules)
Operating voltage	24 V DC ± 10 % (maximum residual ripple 10 %)
Seat leakage	Class III, IV and VI (DIN EN 60534-4)

Approvals and Conformities

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

• Explosion protection: ATEX (II 3G Ex ec IIC T4 Gc, II 3D Ex tc IIIC T135 °C Dc) and IECEx.
• North America: UL Listed for USA and Canada (UL 61010-1).
• Drinking water: Suitable for drinking water applications up to +85 °C.
• Foods and beverages: FDA, USP, EC Regulation 1935/2004, and China food GB Standards.
• Special media: Variants available for Oxygen and Hydrogen applications.

Product Assembly

The electromotive linear drive consists of a brushless DC motor, a gear, and a spindle system that transfers force to the closing element. The integrated electronics are controlled either by standard analogue signals or via a digital fieldbus.

Flow Characteristics

The valve features an equal-percentage flow characteristic according to DIN EN 60534-2-4 (linear characteristic curve available on request). The theoretical rangeability is up to 50:1 depending on the seat size.

Operating Limits

The application range of the process valves is limited by the nominal pressure in accordance with the relevant standard, as well as the maximum operating pressures and temperatures.

WARNING

For device variants with specific approvals or conformities, deviating technical operating limits (temperature, pressure) may apply. Always refer to the corresponding approval-related documentation.