BURKERT Type 3361 electromotive 2-way globe control valve is the 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 customer needs. If necessary, the safety position can be approached by an optional energy storage unit in case of a power failure. The 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 for the Type 3361 due to its IP65/IP67 protection degree and high impact and vibration resistance.

General Technical Data

Product Properties	Specification
Design	Globe control valve
Nominal diameter	DN 10 to DN 100 (NPS 3/8 to 4)
Safety setting (power failure)	With SAFEPOS energy-pack: open, closed, or freely programmable. Without: blocked in last position.
Flow direction	Against closing direction (below seat)
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)
Seat leakage	Class III, IV, and VI (DIN EN 60534-4)
Theoretical rangeability	Up to 50:1
Operating voltage	24 V DC ± 10 % (maximum residual ripple 10 %)
Protection class	IP65/IP67 (DIN EN 60529), NEMA 4X
Medium temperature	-40 °C to +230 °C

INFO

All electrical values relate to a supply voltage of 24 V at +25 °C. The device features a 100% duty cycle and a dead band of the position control of ± 0.1%.

Approvals and Conformities

• Explosion Protection: Optional ATEX / IECEx (Zone 2/22, Ex ec IIC T4 Gc / Ex tc IIIC T135 °C Dc).
• 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: FDA, USP, EC Regulation 1935/2004, and China Food GB Standards compliant variants available.
• Gases: Optional variants tested for suitability with Oxygen and Hydrogen.

Materials and Design

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
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 (Welded Connection)

Dimensions in mm, unless otherwise stated. The table below shows dimensions for DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B.

DN	ES	LS	∅ DS	WS
10	20	90	17.2	1.6
15	20	90	21.3	1.6
20	20	100	26.9	1.6
25	26	130	33.7	2.0
32	26	140	42.4	2.0
40	26	150	48.3	2.0
50	26	175	60.3	2.0

Performance Specifications

Flow Characteristics

The globe control valve features an equal-percentage flow characteristic according to DIN EN 60534-2-4 (linear characteristic curve available on request). It has different theoretical rangeabilities depending on the seat size.

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.

WARNING

The maximum permissible temperature for the environment and the medium are dependent on each other. For particularly demanding process conditions such as cavitation or erosion by wet steam, hardened cones and seats can be used to significantly increase the service life.