Albert Maier GmbH offers highly reliable and durable radiator valves for transformers, backed by over 65 years of industry expertise. Designed to guarantee absolute leak tightness in operation, each valve is individually tested to ensure long-lasting performance and safety.
Here is a summary of the product’s key features and specifications:
Standard Specifications: The valves feature a nominal diameter of DN 80 and comply with DIN 42560 and EN 50216-8 standards.
Available Types: Customers can choose between Type A (welding neck flange) and Type B (wafer type flange).
Metal-Sealed Option: This maintenance-free design uses a forged steel body and a solid offset clap to minimize leakage and prevent accidental operation.
Soft-Sealed Option (Type OR): These models utilize an O-ring seal on the clap, ensuring zero leakage even when vacuum or overpressure is applied.
Innovative Setting Device: An isolated concept utilizing a thrust member and thrust screw prevents any external leakage for the entire lifetime of the valve.
Offshore Design: For extreme environments, these valves feature high corrosion resistance with a stainless steel 316 grade body or SOLIDLINE® C5-M coating, plus a UV-resistant fiberglass locking cap.
Low-Temperature Design: Engineered for extreme cold, these valves use special gaskets that resist all common insulation liquids and remain reliable in ambient temperatures down to -60°C.
The Maier (Germany) Transformer Radiator Butterfly Valve Type 4256 B/B OR (160 PCD) is a flanged butterfly valve used to isolate transformer radiator banks from the main tank for maintenance. Manufactured by Mier in Germany, it is designed for the oil-service environment and features a full-bore design for minimal flow restriction. The 160 mm PCD (Pitch Circle Diameter) flange matches standard transformer radiator flange dimensions.
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