Materials
- Body: cast iron EN-GJL 250 / JL1040 (EN 1561).
- Disc: stainless steel 1.4408.
- Stem: stainless steel ASTM A276 Type 316.
- Seat and O-ring: EPDM (ISO 1691).
- Lever: steel ST14.03 (DN50–DN150), S235 (DN200–DN300).
Lever Operated Butterfly Valve
HERZ 4219 ZF Wafer Lever Butterfly Valve
4219 ZF Series — Cast Iron Wafer Type, DN50–DN300
HERZ 4219 ZF from HERZ Armaturen is a cast iron wafer type butterfly valve with stainless-steel disc and lever operation for shut-off and control in HVAC, chilled water, and hot water systems.
Manufactured by
HERZ Armaturen
HERZ 4219 ZF Wafer Lever Butterfly Valve
Review the confirmed product information, including description, features, benefits, and applications.
The HERZ 4219 ZF Wafer Type Lever Operated Butterfly Valve from HERZ Armaturen is a compact shut-off and control valve for HVAC, chilled, and hot water systems. Made from cast iron (EN-GJL 250) with an EPDM seat and stainless-steel disc, it offers reliable sealing and corrosion resistance.
The lever-operated design allows quick manual operation, while the wafer pattern ensures compatibility with PN10 and PN16 flanges. Its compact structure and blue epoxy coating make it suitable for building and industrial installations.
Pressure & Temperature
- Pressure rating: PN16.
- Temperature range: -20°C to +110°C.
- Medium: water and water/glycol mixtures of 25–50%.
Connection & Sizes
- Wafer type, flanges to EN 1092-2.
- PN10 and PN16 flanges for DN50–DN150; PN16 for DN200–DN300.
- Sizes DN50 to DN300.
Operation & Coating
- Manual lever operation.
- Operating torque: 20–350 Nm depending on size.
- Housing painted blue (RAL 5000).
Sizes, Dimensions & Torque
Dimensions in mm. L = face-to-face length. Flange compatibility per HERZ datasheet 4219, issue 0717.
| DN | Flanges | L (mm) | Weight (kg) | Torque (Nm) |
|---|---|---|---|---|
| 50 | PN10 / PN16 | 43 | 3.8 | 20 |
| 65 | PN10 / PN16 | 46 | 4.0 | 20 |
| 80 | PN10 / PN16 | 46 | 4.7 | 25 |
| 100 | PN10 / PN16 | 52 | 6.3 | 50 |
| 125 | PN10 / PN16 | 56 | 8.3 | 50 |
| 150 | PN10 / PN16 | 56 | 10.1 | 90 |
| 200 | PN16 | 60 | 16.6 | 150 |
| 250 | PN16 | 68 | 24.5 | 250 |
| 300 | PN16 | 78 | 37.6 | 350 |
Compact Wafer Design
Compact, lightweight wafer design for installation between pipe flanges.
Reliable Sealing
EPDM seat and stainless-steel disc provide reliable sealing and corrosion protection.
Flange Compatibility
Compatible with PN10 and PN16 flanges in the sizes listed.
Easy Manual Operation
Locking lever for quick, easy manual operation.
Long Service Life
Maintenance-free EPDM seat supports a long service life.
HERZ 4219 ZF is suitable for fluids in building services, cold water, and hot water systems.
Chilled & Hot Water Circuits
HVAC chilled and hot water circuits requiring compact manual shut-off.
Hydronic Systems
Building service and hydronic systems in commercial and residential projects.
Process Water Lines
Industrial and process water lines requiring wafer butterfly valves.
District Heating & Cooling
District heating and cooling networks.
Need support with this butterfly valve?
Share your required DN size, flange rating, system medium, and operating temperature, and our MEP team will support you with the suitable product information.
Other Products in Butterfly Valves
Explore other products available within the same product category and open each page for complete technical details.
HERZ 4219 AF Lug Gear Butterfly Valve
View confirmed product details and technical information for HERZ 4219 AF Lug Gear Butterfly Valve.
HERZ 4219 ZF Wafer Gear Butterfly Valve
View confirmed product details and technical information for HERZ 4219 ZF Wafer Gear Butterfly Valve.