Burkert Type 3320 is an innovative electromotive 2/2-way angle seat valve designed for demanding shut-off tasks under harsh operating conditions. The electromotive actuator with a ball screw moves the swivel plate at a particularly high speed of up to 6 mm/s to the desired end position, reacting almost instantaneously to process signals. The electromotive actuator and shut-off 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 ambient conditions are no problem for the Type 3320 due to its IP65/IP67 degree of protection and high impact and vibration resistance. Thanks to the tried-and-tested, self-adjusting packing gland with exchangeable V-seals, the angle seat valve achieves maximum service life and tightness. If necessary, a safety position can be approached by an optional SAFEPOS energy-pack in case of a power failure. The fieldbus-compatible Type 3320 offers many helpful functions for process monitoring, valve diagnostics, and preventive maintenance.

General Technical Data

Product Properties	Details
Design	Angle seat on/off valve
Nominal diameter	DN 15...DN 80, NPS 1/2...3
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...25 bar(g) (Vacuum variant down to -0.9 bar(g) optional)
Nominal pressure	PN 25 (DIN EN 1333), Class 150 (DIN EN 1759)
Seat leakage	Leakage rate A (DIN EN 12266-1), seat seal PTFE and PEEK, test medium air
Closing time	AG2: 2.3...6.6 s / AG3: 8.7 s
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 % (maximum residual ripple 10 %)
Operating medium	Steam, neutral gases, water, alcohols, oils, fuels, hydraulic fluids, salt solutions, lyes, organic solvents, oxygen (optional)
Medium temperature	-40...+230 °C
Ambient temperature	-25...+65 °C (only without additional modules)
Degree of protection	IP65/IP67 (DIN EN 60529), NEMA 4X

Approvals and Conformities

• Explosion Protection: Optional category 3 device suitable for zone 2/22 (ATEX/IECEx: 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/Hygiene: FDA, USP, EC Regulation 1935/2004, and China food GB Standards compliant variants available.
• Oxygen: Optional suitability for gaseous oxygen up to 25 bar(g) and +60 °C.

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	PEEK or stainless steel 1.4404 (316L)
4	Packing gland tube	Stainless steel 1.4401 (316)
5	Seal valve body	Graphite or PTFE
6	Swivel plate	Stainless steel 1.4401 (316) / 1.4404 (316L)
7	Valve seat seal	PTFE or PEEK sealing washer
8	Valve body	Stainless steel CF3M

Dimensions

Actuator AG2

DN	NPS	H1/B1 (Standard)	H2/B2 (Fieldbus variant)
15	1/2	311	362
20	3/4	319	369
25	1	321	372
32	1 1/4	330	381
40	1 1/2	333	384
50	2	367	418

Actuator AG3

DN	NPS	H1/B1 (Standard)	H2/B2 (Fieldbus variant)
40	1 1/2	439	479
50	2	454	494
65	2 1/2	467	507

Performance Specifications

Fluidic Data (Flow Below Seat)

DN	Actuator Force	Max. Pressure (PTFE)	Max. Pressure (PEEK)	Kv value water (Thread/Welded)
15	1300 N	25 bar	25 bar	5.4 m³/h
20	1300 N	11 bar	11 bar	11 m³/h
25	1300 N	20 bar	18 bar	20 m³/h
32	2500 N	25 bar	25 bar	32 m³/h
40	2500 N	18 bar	18 bar	47 m³/h
50	2500 N	10 bar	10 bar	62 m³/h
65	10000 N	-	25 bar	91 m³/h
80	10000 N	-	17 bar	140 m³/h

Operating Limits for Seat Seal

PTFE is used for a maximum medium temperature of up to +130 °C. If the maximum medium temperature temporarily or permanently exceeds +130 °C, PEEK as a seal material is the appropriate solution (up to +230 °C).

Product Design and Assembly

Design of the Electromotive Valve Type 3320 AG2

Design of the Electromotive Valve Type 3320 AG3

Maintenance and Service

Risk of injury from high pressure

Before working on the system or device, switch off the pressure and vent or drain lines.

Risk of crushing due to mechanically moving parts

Perform installation and maintenance work only in the isolated state. For devices with SAFEPOS energy-pack: Completely drain the energy-pack and wait until the LED illuminated ring goes out.

Changing the Swivel Plate Set

Before the swivel plate set can be changed, the actuator must be removed from the valve body. Ensure the valve is in the open position before removal.

1. Support the swivel plate on the cylindrical part using a prism.
2. Knock out the dowel pin using a suitable pin punch.
3. Remove the swivel plate.
4. Place the new swivel plate on the spindle and align the holes.
5. Position the dowel pin and carefully knock it in using a hammer, centering it relative to the spindle axis.

Running X.TUNE

After installing the actuator onto a new valve body, run the X.TUNE function to adjust the position controller to the physical stroke of the actuating element. Never run X.TUNE under medium pressure.