Materials
- Body: grey cast iron GJL 250 (EN 1561).
- Upper part: brass.
- Seals: EPDM, soft-seated valve seat.
- Spindle sealing: elastic double O-ring.
Flanged Globe Valve
HERZ STRÖMAX-AGF 4218 Flanged Globe Valve
4218 Series — Cast Iron PN16 Shut-Off Valve
HERZ STRÖMAX-AGF 4218 from HERZ Armaturen is a flanged cast iron globe valve with non-rising spindle for shut-off and commissioning in larger heating and cooling circuits, available in DN25 to DN80.
Manufactured by
HERZ Armaturen
HERZ STRÖMAX-AGF 4218 Flanged Globe Valve
Review the confirmed product information, including description, features, benefits, and applications.
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 a 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 protects against corrosion and mechanical wear.
Pressure & Temperature
- Nominal pressure: PN16.
- Operating temperature: -10°C to +110°C.
- Ethylene or propylene glycol mixtures of 25–50% permitted.
Connection & Sizes
- Flanged connections to EN 1092-2.
- Face-to-face length to ÖNORM EN 558-1, basic series 1.
- Sizes DN25 to DN80.
Design & Coating
- Straight body with non-rising spindle.
- Alkyd resin primer with lead- and chromate-free rust protection, epoxy top coat, blue.
- Flow direction marked on the body.
Sizes, Dimensions & Flow
Dimensions in mm. L = face-to-face length, H = height, D = flange outer diameter, kvs in m³/h.
| DN | L (mm) | H (mm) | D (mm) | kvs |
|---|---|---|---|---|
| 25 | 160 | 110 | 115 | 11 |
| 32 | 180 | 110 | 140 | 20.1 |
| 40 | 200 | 110 | 150 | 30.4 |
| 50 | 230 | 135 | 165 | 36.9 |
| 65 | 290 | 145 | 185 | 62.5 |
| 80 | 310 | 145 | 200 | 75 |
Robust Construction
Robust cast iron construction for large-scale heating and cooling systems.
Easy Operation
The non-rising spindle allows easy operation and a compact installation height.
Corrosion-Resistant Coating
The epoxy coating protects the valve against corrosion and mechanical wear.
Long Service Life
Double O-ring spindle sealing supports long-term tightness and ease of movement.
Accessory Compatibility
Compatible with HERZ test points and drain accessories.
HERZ STRÖMAX-AGF 4218 is suitable for shutting off distribution lines, circuits, and heat exchangers in heating and cooling systems.
Central Heating & Cooling
Central heating and cooling systems requiring robust flanged shut-off valves.
Hydronic Balancing Networks
District energy and hydronic balancing networks requiring shut-off and commissioning duty.
Heat Exchangers & Plant Rooms
Heat exchanger connections and plant room installations.
HVAC & Water Shut-Off
Shut-off duty in HVAC and water systems.
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