Materials
- Body: cast iron GG25.
- Disc: ductile iron GGG40.
- Seat: brass CW617N.
- Stem: stainless steel.
Swing Check Valve
HERZ 2622 Cast Iron Swing Check Valve
2622 Series — Flanged Cast Iron PN16, DN65–DN400
HERZ 2622 from HERZ Armaturen is a flanged, full-bore cast iron swing check valve that prevents backflow in HVAC and water distribution networks, available from DN65 to DN400.
Manufactured by
HERZ Armaturen
HERZ 2622 Cast Iron Swing Check Valve
Review the confirmed product information, including description, features, benefits, and applications.
The HERZ 2622 Swing Check Valve from HERZ Armaturen is a flanged, full-bore non-return valve designed to prevent backflow in HVAC and water distribution networks. Constructed from cast iron (GG25) with a ductile iron (GGG40) disc and brass seating ring, the valve ensures tight sealing and reliable operation.
Its robust design follows EN 12334 and EN 1092-2 and is epoxy coated for corrosion protection. Suitable for both hot and cold water, it supports ethylene or propylene glycol mixtures of 25–50%.
Pressure & Temperature
- Nominal pressure: PN16.
- Temperature range: -10°C to +110°C.
- Medium: hot or cold water; glycol mixtures of 25–50%. Not for acids or flammable fluids.
Connection & Sizes
- Flanged connections to EN 1092-2.
- Design standard: EN 12334.
- Sizes DN65 to DN400.
Design & Coating
- Full-bore swing disc design.
- Kvs values from 117 to 3,724 m³/h.
- Painted blue (RAL 5000).
Sizes, Dimensions & Flow
Dimensions in mm. L = face-to-face length, H = height, D = flange outer diameter. Per HERZ datasheet 2622 SCV, issue 0317.
| DN | L (mm) | H (mm) | D (mm) | Weight (kg) | Kvs (m³/h) |
|---|---|---|---|---|---|
| 65 | 240 | 87 | 185 | 10.5 | 117 |
| 80 | 260 | 104 | 200 | 14 | 182 |
| 100 | 300 | 125 | 220 | 20 | 292 |
| 125 | 350 | 157 | 250 | 30 | 465 |
| 150 | 400 | 186 | 285 | 43 | 680 |
| 200 | 500 | 240 | 340 | 70 | 1,230 |
| 250 | 600 | 295 | 405 | 120 | 1,950 |
| 300 | 700 | 372 | 460 | 164 | 3,077 |
| 350 | 800 | 375 | 520 | 215 | 3,480 |
| 400 | 914 | 438 | 580 | 272 | 3,724 |
Rugged Construction
Rugged cast iron construction for durability in demanding systems.
Reliable Sealing
Brass seating ring provides excellent sealing and a long service life.
Low Pressure Drop
Full-bore design minimizes pressure drop across the valve.
Easy Installation
Easy installation and service access.
Corrosion Protection
Epoxy coating for corrosion resistance.
HERZ 2622 swing check valves are suitable for hot and cold water systems where reverse flow must be prevented.
District Heating & Cooling
District heating and cooling systems.
Supply & Distribution
Water supply and distribution networks.
Process Piping
Industrial and process piping.
Pump Discharge Protection
Pump discharge and system protection against backflow.
Need support with this check valve?
Share your required DN size, system medium, operating temperature, and installation details, and our MEP team will support you with the suitable product information.
Other Products in Check Valves
Explore other products available within the same product category and open each page for complete technical details.
HERZ 2622 Bronze Swing Check Valve
View confirmed product details and technical information for HERZ 2622 Bronze Swing Check Valve.
HERZ 2622 Dual Plate Check Valve
View confirmed product details and technical information for HERZ 2622 Dual Plate Check Valve.