BURKERT 387703 (Type 6027) is a direct-acting, powerful 2/2-way plunger solenoid valve designed for high-pressure applications up to 250 bar. The stopper and plunger guide tube are welded together to enhance pressure resistance and leak-tightness. This specific model features a stainless steel body, oxide ceramics seat seal, and PEEK sealing toward the outside.

Circuit Function

Circuit function A (CF A): 2/2-way solenoid valve, direct-acting, normally closed.

Materials (High Pressure Variant)

No.	Element	Material
1	Stopper	Stainless steel 1.4523/316
2	Compression springs	Stainless steel 1.4310/301
3	Glider	PTFE
4	Plunger	Stainless steel 1.4113/434
5	Armature guide tube	Stainless steel 1.4571/316 Ti
6	Ball seat	Stainless steel 1.4305/303
7	Seat seal	Ceramic ball (Oxide ceramics)
8	O-ring	FKM
9	Seat	PEEK
10	Housing	Stainless steel 1.4404/316L (CF3M) only in 1/4" G and NPT

Dimensions

Screw-in version high pressure (FK12)

Note: Dimensions in mm

Approvals and Conformities

This model is ATEX and IECEx certified for use in hazardous locations:

• ATEX / IECEx: II 2 D Ex mb IIIC T130°C Db, II 2 G Ex mb IIC T4 Gb

Safety Instructions

Danger due to high pressure Before loosening lines and valves, turn off the pressure and vent the lines.

Danger due to electrical voltage Before working on or inside the device or the system, switch off the power supply and secure against reactivation. Observe the applicable accident prevention and safety regulations for electrical devices.