Bürkert Type 3361 (SKU 20034332) electromotive 2-way globe control valve is the ideal solution for control tasks under demanding operating conditions. The electromotive actuator with a ball screw positions the control cone with the highest precision. A unique feature is its high positioning speed of up to 6 mm/s, which 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-optimized valve body can be equipped with up to 5 different valve seats for precise adaptation to specific requirements.

The actuator and valve are perfectly adapted to each other with a closed design and robust surface, ensuring hygienic requirements for fast and residue-free cleaning. Thanks to its IP65/IP67 degree of protection and high impact and vibration resistance, the Type 3361 operates reliably even in harsh environmental conditions.

General Technical Data

Feature	Specification
Design	Globe control valve
Nominal diameter	DN 10 to DN 100, NPS 3/8 to 4 (SKU 20034332 is 1" ANSI B16.5)
Flow direction	Against closing direction (below seat)
Controller variant	Positioner or process controller (optional)
Weight	AG2: up to 5.5 kg, AG3: up to 16 kg (excluding valve body)

Safety Setting in Case of Power Failure

Devices equipped with the optional SAFEPOS energy-pack can move to an open, closed, or freely programmable position. Devices without the SAFEPOS energy-pack (such as SKU 20034332) will remain blocked in their last position.

Performance Specifications

Parameter	Value
Operating pressure	0 to 25 bar(g) (40 bar(g) on request)
Nominal pressure	PN 25 / PN 40 (DIN EN 1333), Class 150 (DIN EN 1759)
Kvs value	0.1 to 140 m³/h (SKU 20034332 is 12 m³/h)
Flow characteristic	Equal percentage, linear (on request)
Seat leakage	Class III, IV and VI (DIN EN 60534-4)
Travel speed	6 mm/s (AG2 1300 N), 4 mm/s (AG2 2500 N), 3 mm/s (AG3)
Theoretical rangeability	Up to 50:1

Electrical Data & Communication

• Operating voltage: 24 V DC ± 10 % (maximum residual ripple 10 %)
• Protection class: III (DIN EN 61140)
• Duty cycle: 100 %
• Standard signal (analogue): Set-point value: 0/4...20 mA, 0...5/10 V and binary input
• Fieldbus (digital): Bürkert system bus (büS), CANopen (optional), EtherNet/IP, PROFINET, Modbus TCP, EtherCAT (optional via integrated gateway)

Approvals and Conformities

• Explosion protection: Optional ATEX / IECEx (Zone 2/22)
• North America: Optional UL Listed for USA and Canada (UL 61010-1)
• Drinking water: Optional suitability for drinking water applications (up to +85 °C)
• Foods and beverages / Hygiene: FDA, USP, EC Regulation 1935/2004, China food GB Standards
• Special media: Oxygen and Hydrogen variants available on request

Materials

Component	Material
Actuator housing	Powder-coated aluminium
Actuator cover / base	PPS or PC / Stainless steel 1.4308
Valve body	Stainless steel CF3M
Spindle	Stainless steel 1.4401 (316) / 1.4404 (316L)
Spindle seal	PTFE V-seals (filled) with spring compensation
Seat seal	Stainless steel (optionally hardened), PTFE, or PEEK

Product Design and Assembly

Integrated Position Controller

The position of the actuator (stroke) is controlled according to the position set-point value. The position set-point value is either given by an external standard signal (analogue) or via a fieldbus (digital). The displacement transducer records the actual position (POS) of the electric linear actuator. The positioner compares the actual position value with the position set-point value (CMD) specified as a standard signal.

Integrated Process Controller (Optional)

The additionally implemented PID controller allows process control. The set-point position of the valve is calculated from the external signal (e.g., level, pressure, flow rate, temperature) for the process set-point and the actual process value via the control parameters.

Maintenance and Spare Parts

Replacement Part Sets

To ensure unrivaled service life and tightness, the Type 3361 features a self-adjusting packing gland with exchangeable V-seals. Available replacement part sets include the control cone set, valve seat set, seal set for the packing gland, and the SAFEPOS energy-pack.