
HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series)
Flanged differential pressure controller maintaining constant system pressure balance.
The HERZ STRÖMAX-AGF Globe Valve (4218 Series) from HERZ Armaturen is a flanged shut-off and commissioning valve for heating and cooling systems. Made from cast iron (GJL 250) with a brass upper part and EPDM seals, it provides long-term reliability and tight sealing.
The non-rising spindle ensures compact design and easy operation in all mounting positions. Available in DN25–DN80, the valve operates up to PN16 and 110°C, making it ideal for large hydronic installations. Its epoxy coating (RAL5000) protects against corrosion and mechanical wear.

Flanged differential pressure controller maintaining constant system pressure balance.

DZR brass drain and fill valve for heating and chilled water systems, PN25 rated

Compact DZR brass globe valve with non-rising spindle for HVAC and hydronic shut-off applications

The HERZ DZR SMART PICV (4006/4206 SMART Series) with Three Test Points