BURKERT 327882 (Type 0330) is a direct-acting, media-separated 3/2-way pivoted armature solenoid valve configured in circuit function C (normally closed). Built with a brass body, G 1/4 female threaded ports, and an NBR sealing diaphragm, the valve operates across a process pressure range of 0.00 to 2.50 bar with a nominal orifice of 5.0 mm (3/16 inch). The fluidic chamber is isolated from the electromagnetic actuator by a flexible separating membrane, preventing process fluids from contacting internal metallic solenoid components.

The valve is driven by a class H epoxy-encapsulated solenoid coil engineered for 110 V AC (50/60 Hz) operation and includes a DIN EN 175301-803 Form A cable plug. A built-in manual override enables mechanical commissioning and functional checks without electrical excitation. With a 46 mm installation length and 100% continuous duty rating, article 327882 provides fast switching speeds (8 to 15 ms opening and closing) for neutral media including compressed air, technical water, hydraulic oil, and town gas up to a kinematic viscosity of 37 mm²/s.

Technical Parameters

Parameter	Specification
Article Number	327882
Valve Family Type	0330
Circuit Function	C (3/2-way, normally closed, inlet P/NC, outlet A/OUT, exhaust R/NO)
Nominal Diameter (DN)	5.0 mm (3/16")
Port Connection	G 1/4 internal thread
Construction Length	46 mm
Valve Body Material	Brass
Valve Seat Material	Brass
Sealing Material	NBR (70 Shore A)
Fluidic Pressure Range	0.00 to 2.50 bar (gauge pressure); vacuum down to -0.98 bar
Flow Factor Kv (Water)	0.29 m³/h
Nominal Flow QNn (Air)	310 l/min
Rated Voltage	110 V AC (50/60 Hz, tolerance ±10%)
AC Power Consumption	Inrush: 30 VA, Hold: 15 VA (8 W active hold power)
Switching Times	Opening: 8 to 15 ms, Closing: 8 to 15 ms
Duty Cycle	100% ED continuous operation
Coil Insulation	Epoxy, class H
Electrical Connection	Plug pattern Form A according to DIN EN 175301-803
Enclosure Rating	IP65 (with mating cable plug installed)
Medium Temperature	0 °C to +80 °C
Ambient Temperature	Max. +55 °C
Maximum Viscosity	37 mm²/s
Weight	Approx. 0.45 kg (metal body)
Manual Override	Mechanical lever, lockable

Circuit Function and Port Allocation

Article 327882 operates under Circuit Function C (CF C), defined as a direct-acting 3/2-way solenoid valve that is normally closed in its de-energized rest state. In this position, inlet port 1 (P/NC) is closed, while working outlet port 2 (A/OUT) is connected to exhaust port 3 (R/NO). Upon electrical energization, the pivoted armature shifts to connect port 1 (P) directly to port 2 (A), sealing off exhaust port 3 (R).

Circuit Function	Description	Port 1	Port 2	Port 3
CF C	3/2-way direct-acting, normally closed	P (Pressure inlet)	A (Working outlet)	R (Exhaust / return)

Materials of Construction

The wetted section and actuation components utilize materials selected for mechanical endurance and chemical compatibility with neutral gases and fluids:

Position No.	Element	Material in Article 327882	General Family Options
1	Coil encapsulation	Epoxy (Class H)	Epoxy
2	Diaphragm	NBR	NBR, EPDM, FKM, FFKM
3	O-ring	NBR	NBR, EPDM, FKM, FFKM
4	Seat	Brass	Brass, Stainless steel (1.4401), PP, PEEK
5	Valve body	Brass	Brass, Stainless steel (1.4401), PP, PEEK

Dimensions and Mechanical Mounting

Burkert 327882 features standard G 1/4 parallel pipe threads on all three fluid ports. The body underside provides mounting provisions for rigid machine and bracket installation.

• Port Threads: G 1/4 with thread depth L1 = 9 mm (D1 = G 1/4). The minimum thread engagement depth at the middle port is 7.5 mm.
• Base Fastening: Four threaded M4 holes on the underside arranged in a 38 mm x 24 mm pattern (M4 x 8 mm thread depth).
• Overall Valve Length: 46 mm across main fluid ports.
• Actuator Orientation: The valve may be installed in any physical orientation; mounting with the solenoid actuator upright is recommended.

Installation and Manual Override Operation

Upstream Filtration

Install a dirt trap or inline filter with mesh size ≤ 500 µm upstream of port 1 (P) to prevent solid particulates from lodging between the seat and sealing diaphragm.

Before mounting, ensure the pipeline is thoroughly flushed and de-energized. Use PTFE sealing tape on pipe threads and support the valve body with an open-ended spanner during torque application; never apply rotational force through the solenoid coil housing.

Article 327882 includes a mechanical manual override lever positioned on the valve body for manual commissioning, manual testing, or emergency operation:

1. Press and hold the manual override lever downward.
2. Turn the lever clockwise to lock the valve in its open working state.
3. Turn the lever counter-clockwise to unlock and return control to electrical operation.

Manual Override Interlock

When the manual override is locked, the valve cannot be actuated electrically. Verify that the manual override is returned to its unlocked rest state prior to running automated sequences.

Electrical Connection

Electrical Safety

Disconnect all power supplies and relieve internal pipeline pressure before opening terminal connections or disassembling the unit. Always connect the protective earth (PE) terminal and verify continuity to the metallic valve body.

Electrical connection is established through an included Form A cable plug conforming to DIN EN 175301-803:

• Connect supply line L1 and neutral N to terminals 1 and 2 of the cable plug.
• Connect the ground lead to the protective conductor terminal (PE).
• Position the rubber seal flat between the plug base and coil terminal face.
• Fasten the central fixing screw with a maximum tightening torque of 1 Nm to maintain the IP65 enclosure seal.

Maintenance and Troubleshooting

The pivoted armature design contains no sliding metal parts exposed to the fluid, eliminating frictional wear in the media path. If operational faults occur, perform the diagnostic steps in the table below:

Fault	Possible Cause	Corrective Action
Valve does not switch	Power supply missing or voltage deviation > ±10%	Verify 110 V AC 50/60 Hz supply across terminals 1 and 2
	Electrical coil interrupted or short-circuited	Inspect coil winding resistance; replace defective unit
	Operating pressure exceeds 2.50 bar	Verify supply pressure remains within 0 to 2.50 bar limit
	Manual override locked in engaged position	Rotate manual override counter-clockwise to release
Valve does not close	Foreign particulate matter under seat diaphragm	Disassemble and clean valve interior; install upstream ≤ 500 µm filter
	Manual override locked	Disengage manual override lever
External leakage	Port fittings insufficiently sealed or loose	Reseal thread connections with PTFE tape; check M4 mounting screws