Body Materials
1. Grey Cast Iron EN-JL1040 / GG25 (UV116)
- Application: water, hot water, HVAC circuits, cooling water, general utility and building services
- Temperature: up to +120 °C · PN16
- Advantages: high dimensional stability, good vibration damping, economical for standard duty, wide Kvs range from DN15 to DN300
- Limitations: not suitable for steam above its temperature limit, aggressive chemicals or chloride-rich media
2. Steel 1.0619 (VG430)
- Application: steam, thermal oil, hot water, oil and gas pipelines, refineries, power generation
- Temperature: up to +400 °C · PN16 and PN40
- Advantages: high mechanical strength, TA-Luft, AD2000, NACE and PED approved, proven in steam service with graphite gland packing
- Limitations: not corrosion-resistant on its own; requires suitable media selection for aggressive fluids
3. Stainless Steel 1.4408 / CF8M (VG450)
- Application: chemical and aggressive media, food and beverage, pharmaceuticals, demineralised water, hygiene-critical steam
- Temperature: up to +400 °C · PN40
- Advantages: high corrosion resistance through molybdenum, hygienic surface, durable with acids and alkalis, TA-Luft and PED approved
- Limitations: higher material cost than cast iron and steel
4. Ductile Cast Iron GGG40.3 (special design)
- Application: higher mechanical loads than grey cast iron, water and utility service in demanding installations
- Temperature: up to +120 °C (seat dependent)
- Advantages: higher tensile strength and toughness than GG25, greater impact resistance
- Limitations: still not suited to corrosive media without a suitable coating or lining









