Burkert 364299 (Type 6430) is a servo-assisted 3/2-way piston solenoid valve designed for controlling, shutting off, and dosing neutral media. This specific model features a normally open circuit function (CF D), a G 1 1/2 internal thread connection, a gunmetal body, and NBR seals. It operates at 230V 50Hz and is suitable for pressure ranges from 1 to 10 bar.

If the valve is not supplied with auxiliary pilot air, a minimum differential pressure is required for the function. A maintenance-free, media-separated 3/2-way pivoted armature valve Type 0331 is used as a pilot valve.

General Technical Data

Property	Value
Orifice	DN 40
Port connection	G 1 1/2
Body material	Gunmetal
Seal material	NBR
Operating voltage	230 V / 50 Hz
Pressure range	1 - 10 bar
Kv value (water)	22.8 m³/h
Medium temperature	0 °C to +80 °C
Ambient temperature	0 °C to +55 °C
Switching time (DN 40)	Opening: 80 ms, Closing: 740 ms
Degree of protection	IP65 with cable plug

Circuit Function

Circuit function D (CF D): 3/2-way solenoid valve, servo-controlled, with manual override, normally open.

Materials

No.	Element	Material
1	Coil	Epoxy
2	O-ring	NBR
3	Spring	Stainless steel 1.4310
4	Piston ring	PTFE
5	Housing	Gunmetal
6	Seat seal	NBR
7	Piston seal	NBR
8	Seal	NBR
9	Diaphragm	NBR
10	Manual override	PA

Dimensions

INFO

Dimensions in mm. The figure shows the valve in circuit function C. In circuit function D, the manual override is located above port A/B.

DN	A1	B1	C	D	E1	F1	G	H	J	K	L	M	N	O
40	G 1 1/2	22.5	104	SW55	G 2	26.5	78	65	93	13	153	117	264	88

Installation and Safety

Risk of injury from high pressure

Before loosening lines and valves, switch off the pressure! Vent or empty the lines.

Risk of injury due to electric shock

Before working on the device or system, switch off the power supply. Secure against reactivation. Always connect protective conductor and check electrical continuity between solenoid and body.

• Install a dirt trap upstream of the valve inlet (≤ 500 µm).
• Any installation position, preferably actuator face up.
• Ensure that the valve body is not installed twisted.
• Do not use the solenoid as a lever arm. Hold the device on the body using an open-end wrench and screw into the pipeline.

Troubleshooting

Valve does not switch:

• Short-circuit or coil interrupted
• Inadequate power supply
• Interior of the valve soiled
• Medium pressure outside the permitted pressure range
• Manual override locked
• Not enough differential pressure available

Valve does not close:

• Interior of the valve soiled
• Manual override locked
• Not enough differential pressure available