BURKERT 20114635 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. The flow-optimised valve body can be equipped with different valve seats for a precise adaptation according to customer needs. Actuator and valve are adapted perfectly 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 because of the degree of protection IP65/IP67 and its high impact and vibration resistance.

General Technical Data

Product properties
Design	Globe control valve
Nominal diameter	DN 15, NPS 1/2"
Safety setting in case of power failure	With energy storage SAFEPOS energy-pack: open, closed or freely programmable position. Without energy storage: blocked in last position
Flow direction	Against closing direction (below seat)
Controller variant	Process controller
Weight	AG2: up to 5.5 kg (Total weight including valve body depending on port connection)

Performance data
Operating pressure	0...25 bar(g)
Nominal pressure	PN 25 (DIN EN 1333), Class 150 (DIN EN 1759)
Kv value	1.25 m³/h
Flow characteristic	Equal percentage 50:1
Closing time	AG2: 3.3...6.6 s (Depending on travel speed, stroke and operating conditions)
Travel speed	6 mm/s (for AG2 actuator force 1300 N)
Dead band of the position control	± 0.1 %

Electrical data
Operating voltage	24 V DC ± 10 % (maximum residual ripple 10 %)
Operating current	AG2: maximum 3 A (at maximum load and including 1 A charging current of the optional energy storage SAFEPOS energy-pack). At minimum operating temperature additionally 2 A
Protection class	III (DIN EN 61140)
Duty cycle	100 %
Standby consumption	2...5 W

Medium data
Operating medium	Steam, neutral gases, water, alcohols, oils, fuels, hydraulic fluids, salt solutions, organic solvents
Medium temperature	-10 °C...+ 185 °C
Viscosity	Up to 600 mm²/s

Environment and installation
Ambient temperature	- 25 °C...+ 65 °C (only without additional modules)
Degree of protection	IP65/IP67 (DIN EN 60529), NEMA 4X
Installation position	Any, preferably with actuator upright

Approvals and Conformities

• North America (USA/Canada): Actuators UL Listed for the USA and Canada (UL 61010-1, CAN/CSA-C22.2 No. 61010-1).
• Foods and beverages/Hygiene: EC Regulation 1935/2004 of the European Parliament and of the Council. All wetted materials are compliant with EC Regulation 1935/2004/EC according to the manufacturer's declaration.

Materials

Actuator AG2

No.	Component	Material
1	Display housing/blind cover/gateway housing	PPS (standard), stainless steel 1.4301 (for ATEX/IECEx)
2	Actuator cover	PPS
3	Seal	EPDM
4	Actuator housing	Powder-coated aluminium
6	Seal	EPDM
7	Actuator base	PPS

Valve Body

No.	Component	Material
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 (optionally hardened), PTFE or PEEK seal washer
7	Control cone	Stainless steel 1.4571 (optionally hardened)
8	Valve seat	Stainless steel 1.4571 (optionally hardened)
9	O-ring valve seat	EPDM or PTFE
10	Valve body	Stainless steel CF3M

Dimensions

Actuator AG2

INFO

Dimensions in mm, unless otherwise stated. Dimensions without sealing function: the actuator is raised by approx. 2 mm in the closed position.

Nominal diameter	NPS	H1 Standard variant	H2 Fieldbus variant
DN 15	1/2	417	489

Body with Threaded Connection

Nominal diameter	NPS	G	NPT	RC	LM	AF
DN 15	1/2	14	13.7	13.2	65	27

Performance Specifications

Flow Characteristics

Equal-percentage flow characteristic according to DIN EN 60534-2-4.

Operating Limits

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.

Product Design and Assembly

Product Features

• Display 360° LED light ring: A clearly visible 360° LED ring is attached to the blind cover or display module to indicate the device status, the valve end position and the operating state.
• Mechanical position indicator: Shows the current valve position even if the supply voltage fails.
• Mechanical manual override: Ensures that the actuator can be operated even if the power supply fails.
• 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.

Product Assembly AG2

Integrated Process Controller

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 (PID controller).

Maintenance and Service

WARNING

Risk of injury from high pressure. Before working on the system or device, switch off the pressure and vent or drain lines. Spare parts may be replaced only by trained technicians and with the appropriate tools.

Replacing the Control Cone

1. Set operating state MANUAL.
2. Move valve into open position.
3. Switch off the supply voltage. Wait until LED illuminated ring goes out.
4. Remove actuator from valve body.
5. Knock out dowel pin using a suitable pin punch (4 mm for DN 15).
6. Remove control cone.
7. Attach new control cone to the spindle, align bores, and carefully knock in the dowel pin.
8. Mount actuator on valve body.
9. Apply supply voltage and run X.TUNE.

Replacing the Seal Set (Packing Gland)

1. Remove actuator and control cone as described above.
2. Clamp the body connection in a holding device and loosen the 4 screws on the actuator base.
3. Unscrew lower spindle guide and carefully press out the packing gland package.
4. Grease chevron seals of the new packing gland with approved lubricant (e.g., Klüberpaste UH1 96-402).
5. Insert the parts of the new packing gland individually in the correct sequence.
6. Screw in spindle guide (Tightening torque 15 Nm for DN 15).
7. Reassemble actuator base, control cone, and actuator.

Replacing the Valve Seat

1. Remove actuator from valve body.
2. Select a suitable tool insert and screw it into the installation tool.
3. Unscrew the valve seat using the installation tool and a wrench.
4. Clean the thread and sealing surface in the valve body using compressed air.
5. Grease the new valve seat thread with a lubricant.
6. Screw in valve seat tight using torque wrench (Tightening torque 20 +3 Nm for DN 15).
7. Reassemble and run X.TUNE.