BURKERT Type 3361 electromotive 2-way globe control valve is the solution when it comes to control tasks under demanding operating conditions. The electromotive actuator with ball screw positions the control cone with highest precision. A unique feature is its high positioning speed up to 6 mm/s that reacts almost delay-free to process signals and that 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 a precise adaptation according to customer needs.

Product Features

• Highly precise, dynamic closed-loop control
• Weather, impact and vibration resistant design
• Several Kvs values per port size due to removable valve seats
• Position controller and process controller available
• Hydrogen variant available

General Technical Data

Feature	Description
Design	Globe control valve
Nominal diameter	DN 10 to 100, NPS 3/8 to 4
Safety setting	With SAFEPOS energy-pack: open, closed or freely programmable. Without: blocked in last position
Operating pressure	0 to 25 bar(g), 40 bar(g) on request. Vacuum variant down to -0.9 bar(g)
Medium temperature	-40 °C to +230 °C
Travel speed	6 mm/s (AG2 1300 N), 4 mm/s (AG2 2500 N), 3 mm/s (AG3 7700/10000 N)
Operating voltage	24 V DC ± 10 %
Degree of protection	IP65/IP67 (DIN EN 60529), NEMA 4X

Materials

• Actuator housing: Powder-coated aluminium
• Display housing/blind cover: PPS (standard), stainless steel 1.4301 (for ATEX/IECEx)
• Valve body: Stainless steel CF3M
• Seat seal: Stainless steel 1.4571 (optionally hardened), PTFE or PEEK seal washer

Approvals and Conformities

Conformity Options

• Explosion protection: ATEX / IECEx Zone 2/22 (Ex ec IIC T4 Gc / Ex tc IIIC T135 °C Dc)
• North America: UL Listed (UL 61010-1)
• Drinking water: Suitable for use in drinking water applications (TrinkwasserV) up to +85 °C
• Foods and beverages: FDA, USP, EC Regulation 1935/2004, China food GB Standards
• Gases: Suitability for oxygen and hydrogen

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.

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.

Safety Position via Energy Storage (Optional)

The safety starting positions in case of power interruption is realised with the optional energy storage SAFEPOS energy-pack. The desired position is set via the menu. In addition to the end positions (open/closed), any desired intermediate position can be defined here.

Dimensions

(Actuator AG2 standard variant dimensions)