BURKERT 20116765 Type 3361 electromotive 2-way globe control valve is a highly precise, dynamic closed-loop control solution designed for demanding operating conditions. This specific SKU features a DN 15 flange connection (DIN EN 1092-1), a robust stainless steel body, and an AG2 electromotive actuator (1300 N) operating on 24 V DC. It is ATEX and IECEx approved for hazardous environments and is capable of handling operating pressures from 0 to 25 bar. The valve provides an equal percentage flow characteristic (30:1) with a Kv value of 0.5 m³/h for water.

The electromotive actuator with a ball screw positions the control cone with the highest precision, offering a positioning speed of up to 6 mm/s that reacts almost delay-free to process signals. Pressure variations or shocks in the medium are not transferred to the valve position. The closed design and robust surface ensure hygienic requirements for fast and residue-free cleaning are met, while the IP65/IP67 and NEMA 4X protection classes make it suitable for harsh environmental conditions.

General Technical Data

Feature	Specification
Design	Globe control valve
Nominal diameter	DN 15
Flow direction	Against closing direction (below seat)
Operating pressure	0...25 bar(g)
Nominal pressure	PN 25 (DIN EN 1333)
Kv value (water)	0.5 m³/h
Flow characteristic	Equal percentage 30:1
Travel speed	6 mm/s (for AG2 actuator force 1300 N)
Operating voltage	24 V DC ± 10 % (maximum residual ripple 10 %)
Protection class	III (DIN EN 61140)
Degree of protection	IP65/IP67 (DIN EN 60529), NEMA 4X

INFO

The safety setting in case of power failure for this model includes the electrical energy storage (SAFEPOS energy-pack), allowing the valve to reach an open, closed, or freely programmable position.

Approvals and Conformities

This specific device variant (SKU 20116765) includes explosion protection approvals.

• ATEX: II 3 G Ex ec IIC T4 Gc / II 3 D Ex tc IIIC T135°C Dc
• IECEx: Ex ec IIC T4 Gc / Ex tc IIIC T135°C Dc

Other optional conformities available for the Type 3361 family include UL listing for North America, drinking water suitability, FDA/USP compliance for food and beverage, and oxygen/hydrogen suitability.

Materials

AG2 Actuator Materials:

1. Display housing/blind cover: PPS (standard), stainless steel 1.4301 (for ATEX/IECEx)
2. Actuator cover: PPS
3. Seal: EPDM
4. Actuator housing: Powder-coated aluminium
5. Seal: EPDM
6. Actuator base: PPS

Valve Body Materials:

1. Spindle: Stainless steel 1.4401 (316)/1.4404 (316L)
2. Spindle seal: PTFE V-seals (filled) with spring compensation
3. Spindle guide: Stainless steel 1.4404 (316L)
4. Packing gland tube: Stainless steel 1.4401 (316)
5. Seal valve body: Graphite or PTFE
6. Seat seal: Stainless steel 1.4571
7. Control cone: Stainless steel 1.4571
8. Valve seat: Stainless steel 1.4571
9. O-ring valve seat: EPDM or PTFE
10. Valve body: Stainless steel CF3M

Dimensions

Body with Flange Connection

Dimensions in mm, unless otherwise stated.

DN	∅ DF	LF	∅ BF	AF	∅ D	A x α	∅ MF
15	95	130	65	16	14	4 × 90°	18.1

(Table excerpt for DN 15 DIN EN 1092 PN 25 FTF 1 according to DIN EN 558-1)

Electrical Connection

AG2 Variant

• X3 – Circular plug M12, 5-pin, A-coded: Operating voltage AG2 and büS/CANopen
• X1 – Circular plug M12, 8-pin, A-coded: Input and output signals
• X2 – Circular socket M12, 5-pin, A-coded: Input signals process actual value

Operating Limits

Medium Temperature and Operating Pressure

In addition to the maximum operating pressures, the application range of Bürkert process valves is limited by the nominal pressure in accordance with the relevant standard.

WARNING

The maximum permissible temperature for the environment and the medium are dependent on each other. The maximum allowable temperature curves of different device variants are determined for maximum operating conditions (maximum operating pressure and motor power).

Product Design and Assembly

The electromotive linear drive consists of a brushless DC motor, a gear, and a spindle system that transfers the force to the closing element. The integrated electronics are controlled either by standard signals or via a fieldbus (digital). The electromotive linear actuator is designed to provide optimum efficiency, keeping the valve tight and in position even at the maximum specified medium pressure in a powerless standstill.

Integrated Position Controller

The position of the actuator (stroke) is controlled according to the position set-point value. 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. If there is a system deviation, the electric motor drive is controlled via the actuating variable CTRL and the actual position value is changed accordingly.