Check valves are indispensable components in piping systems to prevent the backflow of media and ensure operational safety. They protect pumps, heat exchangers and other system components from damage caused by pressure surges or backflow. Our product range includes threaded, wafer, flanged and ball check valves, which are suitable for a wide variety of applications in industry, plant engineering and process engineering. All valves are manufactured in accordance with international standards and offer maximum reliability and durability.
Threaded check valves are the compact solution for smaller pipe diameters and standard applications. They are particularly suitable for installations in heating, cooling and water systems as well as for SKID systems. Thanks to their simple installation and maintenance-free design, they are the first choice for applications with limited space.
Typical areas of application: Water, neutral liquids, steam and sometimes aggressive media.
Special features: Compact design, spring-loaded construction, high nominal pressures up to PN40.
| Feature | EUROPE | M1 | RV 600 |
| Nominal pressure | PN 25 | PN 16 | PN 40 |
| Nominal size | DN 10 – DN 100 | DN 8 | DN 8 – DN 50 |
| Temperature | -10 to +120°C | -20°C to +150°C | -10°C to +200°C |
| Material | brass | Stainless steel 316 | Stainless steel |
| Gasket | NBR | FKM | PTFE |
| Special feature | Compact design for water & air | High corrosion resistance | Angled seat for optimized flow |
Wafer check valves are the preferred solution for compact installations and high pressure ranges. They are mounted directly between two flanges and are particularly suitable for steam, water, oil and gas pipes as well as aggressive media. Thanks to their short face-to-face length and spring-loaded design, they offer reliable backflow prevention with minimum space requirements.
Typical areas of application: Power plants, chemical industry, SKID plants, process lines.
Special features: Maintenance-free design, standard-compliant flange dimensions, high temperature and pressure resistance.
| Feature | RK41 | RK44 | RK70 | RK76 | RK86 | DCV1 | DCV2 | DCV3 |
| Nominal pressure | PN 16 | PN 16 | PN 6 | PN 40 | PN 40 | PN 16 | PN 40 | PN 40 |
| Nominal size | DN 15 – DN 200 | DN 15 – DN 200 | DN 15 – DN 200 | DN 15 – DN 100 | DN 15 – DN 200 | DN 15 – DN 100 | DN 15 – DN 100 | DN 15 – DN 100 |
| Temperature | -10 to +120°C | -40°C to +300°C | -30°C to +130°C | -10°C to +300°C | -10°C to +400°C | -10°C to +300°C | -10°C to +300°C | -10°C to +400°C |
| Material | Brass / cast iron | Bronze | Brass / cast iron | Chrome steel | Chrome steel / stainless steel | Bronze / stainless steel | Stainless steel | Stainless steel |
| Gasket | Metallic / EPDM | Metallic / EPDM | EPDM | Metallic / PTFE | Metallic / PTFE | Metallic sealing | Metallic sealing | Metallic / optionally soft-sealing |
| Special feature | Versatile for water, steam and gases | Corrosion-resistant for water & steam | Low-noise heating fitting | For aggressive media & high pressure | For power plants and chemical plants | Compact plate design for steam and condensate | For high-pressure steam and hot media | For process lines, steam and hot water |
Flanged check valves are the robust solution for large nominal sizes and industrial applications. They offer maximum operational safety and are suitable for aggressive media and high temperatures.
Typical areas of application: Chemical industry, heat transfer oil systems, food industry.
Special features: Inspection cover for maintenance, variants with heating jacket available.
| Feature | BOA-R | BOACHEM-RXA |
| Nominal pressure | PN 6 / PN 16 | PN 10 – PN 40 |
| Nominal size | DN 15 – DN 350 | DN 15 – DN 400 |
| Temperature | -10 to +350°C | -10°C to +400°C |
| material | Cast iron/ductile iron | Stainless steel 1.4408 |
| Gasket | CrNi graphite | PTFE/metallic |
| Special feature | Inspection cover, high corrosion resistance | For aggressive and explosive media |
Ball check valves are the optimum solution for media containing solids. The self-cleaning ball prevents deposits and ensures trouble-free operation.
Typical areas of application: Waste water, sludge, viscous liquids.
Special features: Minimal pressure loss, low-noise operation.
| Feature | Type 408/418 | Type 508 |
| Nominal pressure | PN 10 / PN 16 | PN 10 |
| Nominal size | DN 50 – DN 350 | DN 25 – DN 65 |
| Temperature | -10 to +80°C | -10°C to +80°C |
| material | Ductile cast iron version | Cast iron/ Epoxy |
| Gasket | NBR | NBR |
| Special feature | Self-cleaning ball for waste water | Compact design for viscous media |
For all installation positions and media – water, steam, gas, aggressive liquids.
EN 1092, EN 558, Pressure Equipment Directive 2014/68/EU.
Special materials, heating jacket, other flange processing.
Ready-to-install assemblies including documentation.
Spring-loaded and self-cleaning systems for trouble-free operation.
Our check valves offer a compact solution for standard installations and can be seamlessly integrated into piping systems – ideal for SKID systems, modular assemblies and complex process lines.
Whether pump station, valve stand or pipe production – our engineering teams ensure precise design and ready-to-install delivery. This saves you time, reduces interfaces and increases operational reliability.
All products comply with EN 1092, EN 558, ISO 5208 and the Pressure Equipment Directive 2014/68/EU.
Yes, stainless steel and PTFE gaskets are available, as are heating jacket options.
Yes, flange and wafer valves in particular can be equipped with position monitoring.
Horizontal and vertical, depending on the valve type (see product details).
Most versions are low-maintenance; inspection covers on flanged valves make maintenance easier.
