Burkert Type 6430 (SKU 20061964) is a servo-assisted 3/2-way piston valve. If the valve is not supplied with auxiliary pilot air, a minimum differential pressure is required for the function. The valve is designed for neutral liquids and gases in the pressure range of 1 to 16 bar in the normally closed (NC) function. A maintenance-free, media-separated 3/2-way pivoted armature valve Type 0331 is used as a pilot valve. In combination with a plug to DIN EN 175301-803 Form A, the valves satisfy degree of protection IP65.

Technical Data

Property	Value
Body Material	Brass
Seal Material	NBR
Orifice	DN 8
Port Connection	NPT 1/4
Pressure Range	1 to 16 bar
Voltage	24 V DC
Medium Temperature	0 °C to +80 °C

Circuit Functions

Symbol	Description
	Circuit function C (CF C) 3/2-way solenoid valve Servo-controlled, with manual override Normally closed

Materials

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

Dimensions

INFO

• Dimensions in mm
• The dimensions A2, B2, E2 and F2 apply to NPT thread.
• The figure shows the valve in circuit function C with ports P, R and A/B (manual override via port P).

Installation

WARNING

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).
• Hold the device on the body using an open-end wrench and screw into the pipeline.
• Screw cable plug tight, ensuring a torque of 50–60 Ncm.