Burkert 20075566 (Type 0330) is a direct-acting, media-separated 2/2-way pivoted armature solenoid valve. This specific variant features a normally closed (NC) circuit function, a 3.0 mm orifice, a stainless steel body, and FKM (fluor rubber) seals. It is designed for a pressure range of 0 to 10 bar and operates on 24 V DC. The solenoid coils are moulded with a chemically resistant epoxy. Since the coil system is separated from the medium by a diaphragm, the valve is especially suitable for critical media such as aggressive acids and alkalis. The Type 0330 is equipped with a manual override for start-up and testing.

General Technical Data

Feature	Specification
Orifice	DN 2...DN 5 (Variant 20075566 is DN 3.0)
Body Material	Brass, Stainless steel (1.4401), PP, PVDF, PEEK
Seal Material	EPDM, FKM, FFKM, NBR
Thermal Insulation Class	Epoxy coil class H
Duty Cycle	100% continuous operation (for brass, stainless steel, and PEEK)
Voltage Tolerance	±10%
Degree of Protection	IP65 with cable plug
Ambient Temperature	Max. +55 °C
Installation Position	As required, preferably with actuator upright

Note on Performance

Measurement at +20 °C, 6 bar at the valve outlet. Opening: pressure build-up 0...90%, closing: pressure reduction 100...10%.

Circuit Functions

The Type 0330 family supports multiple circuit functions. The 20075566 variant operates as Circuit Function A.

• Circuit Function A (CF A): 2/2-way solenoid valve, direct-acting, normally closed.
• Circuit Function B (CF B): 2/2-way solenoid valve, direct-acting, normally open.
• Circuit Function C (CF C): 3/2-way solenoid valve, direct-acting, normally closed.
• Circuit Function D (CF D): 3/2-way solenoid valve, direct-acting, normally open.
• Circuit Function E (CF E): 3/2-way mixing valve.
• Circuit Function F (CF F): 3/2-way distribution valve.
• Circuit Function T (CF T): 3/2-way solenoid valve, flow direction optional, normally closed.

Materials

No.	Element	Material
1	Coil	Epoxy
2	Diaphragm	EPDM, FKM, FFKM, NBR
3	O-ring	EPDM, FKM, FFKM, NBR
4	Seat	Brass, Stainless steel (1.4401), PP, PEEK
5	Valve body	Brass, Stainless steel (1.4401), PP, PEEK

Dimensions

Metal Body

Installation Note

For metal bodies, the minimum thread length at the middle connection is 7.5 mm. When using pipe fittings for G 1/4 connection threads, ensure adequate screw-in depth.

Plastic Body

Performance Specifications

Pressure Range and Flow Rate (Standard Variant, Metal Body)

Circuit Function	DN	Kv value water (DC) [m³/h]	Pressure Range Standard [bar]	Pressure Range Vacuum [bar]
A / B / C / D / F	2.0	0.08	0...16	-0.98...10
A / B / C / D / F	3.0	0.14	0...10	-0.98...6
A / B / C / D / F	4.0	0.17	0...5	-0.98...3
A / B / C / D / F	5.0	0.29	0...2.5	-0.98...1

Pressure Limits

The maximum medium pressure is 12 bar for seal materials FKM and FFKM. Vacuum operation is possible for all seal materials.

Approvals and Conformities

Depending on the specific configuration, the Type 0330 series complies with various international standards:

• Explosion Protection: Optional ATEX and IECEx approvals (Category 2, Zone 1/21).
• North America: Optional UL Listed, UL Recognized, CSA, and FM approvals for hazardous locations.
• Drinking Water: Suitable for use in drinking water applications (complies with UBA assessment principles).
• Marine: DNV GL classification for ships, offshore units, and high-speed craft.