The BURKERT Type 3361 (SKU: 20066032) is an innovative electromotive 2-way globe control valve designed for 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. The flow-optimized valve body ensures precise adaptation to process requirements. Actuator and valve are perfectly adapted 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 due to the IP65/IP67 degree of protection and high impact and vibration resistance.

Product Features

• Highly precise, dynamic closed-loop control
• Weather, impact, and vibration-resistant design
• Hygienic design surface for easy cleaning
• Integrated positioner for accurate flow regulation
• Vacuum version capable of handling pressures down to -0.9 bar(g)

General Technical Data

Property	Value
Design	Globe control valve
Nominal diameter	DN 20 (3/4")
Flow direction	Against closing direction (below seat)
Operating pressure	-0.9 to 25 bar(g)
Nominal pressure	PN 25 (DIN EN 1333), Class 150 (DIN EN 1759)
Kv value (water)	7.1 m³/h
Seat leakage	Class VI (DIN EN 60534-4)
Travel speed	6 mm/s (for AG2 actuator force 1300 N)
Operating voltage	24 V DC ± 10 % (maximum residual ripple 10 %)
Operating current	Maximum 3 A (at maximum load)
Medium temperature	-10 °C to +130 °C
Ambient temperature	-25 °C to +55 °C
Degree of protection	IP65/IP67 (DIN EN 60529), NEMA 4X

INFO

All electrical values relate to a supply voltage of 24 V at +25 °C. The maximum permissible temperature for the environment and the medium are dependent on each other.

Materials

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	PTFE seal washer
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

Actuator (AG2)

Note: Dimensions in mm, unless otherwise stated. For DN 20 (3/4"), the standard variant height (H1) is 423 mm.

Body with Threaded Connection

DN	NPS	G (DIN ISO 228-1)	LM	AF
20	3/4	16	75	34

Performance Specifications

Flow Characteristics

• Equal-percentage flow characteristic according to DIN EN 60534-2-4.
• Theoretical rangeability: 50:1 for DN 20, Seat size 20.

WARNING

By using plastics (PTFE) as sealing material, the control valves can close tightly (Leakage Class VI). Their use is not recommended in cases of increased erosion due to demanding process conditions such as cavitation or abrasive media.