Select branch and language

Select language

Internal sales

For all sales-related matters:

Tel: +1 678 5 53 34 00

Send an enquiry

Service helpline

For all after-sales matters:

Tel: +49 7940 123 450

Contact the helpline

Force-controlled process solenoid valve made of metal

GEMÜ 8257

Configure
Compact, electromagnetically operated solenoid valve with brass housing and multiple threaded connections for industrial control applications.

Solenoid valve for high temperatures and high pressures

Product information

The GEMÜ 8257 2/2-way solenoid valve with a positive lift diaphragm is electromagnetically operated and has a brass or stainless steel valve body. All media wetted parts are made of NBR, HNBR, FKM, EPDM, brass or stainless steel. The valve is suitable for inert media such as air, water and oils.

Key features

  • Valve operates without minimum pressure differential
  • Soft closing action
  • Compact design
  • Suitable for vacuum applications
  • Explosion protected solenoids acc. to ATEX available as an option
  • Optimum media compatibility due to choice of materials
  • NPT thread available
  • Option: for liquids and steam up to 150 °C
Compact, electromagnetically operated solenoid valve with brass housing and multiple threaded connections for industrial control applications.

Technical details

Parameters
Value
Media temperature
-10 to 150 °C
Ambient temperature
-10 to 50 °C
Operating pressure
0 to 10 bar
Nominal size
DN 10
Connection type
Threaded connection
Connection standards
DIN
ISO
NPT
Body materials
1.4408, investment casting material
CW617N, brass
Supply voltages
230 V AC, 50 Hz
230 V AC, 60 Hz
24 V AC, 50 Hz
24 V AC, 60 Hz
24 V DC
Conformities
EAC
custom_technical_data_

Downloads

3 Results
  • Product certificate RoHS - GEMÜ product collection

    pdf, 305 KB, DE/EN

  • Validation Guide GEMÜ 102, 202, 205, 225, 52, 8253, 8257, 8258, 8259, 8303, J70, M75

    pdf, 154 KB, DE

  • Validation guide GEMÜ 52, 102, 202, 205, 225, J70, M75, 8303, 8253, 8257, 8258, 8259

    pdf, 154 KB, EN

Suitable services

  • Expert knowledge for your applications

    Training

    Deepen your expertise in valve technology and plant control. Our training courses provide practical content to help you design processes that are safe, efficient, and compliant with standards.

  • Ensure longevity and reliability

    Maintenance

    Regular maintenance ensures consistently stable processes. Our service teams ensure the availability of your systems and reliably extend the service life of your components.

  • Fast, efficient, and precise

    Repair

    When it comes to repairs, every minute counts. Our experts analyze, repair, and test reliably - using original spare parts, technical precision, and a focus on minimizing downtime.

  • Intelligent networking with GEMÜ CONEXO

    Digital support

    CONEXO makes maintenance digital: RFID technology and mobile apps enable the unique identification of your components and document maintenance processes transparently.