📝 Item Description
Product: Oventrop Multiflex F (ZB Series) Straight Pattern Isolating H-Block Valve Part Number: 1015883 (EAN: 4026755228892) System Type: Designed specifically for Two-Pipe Hydronic Heating Systems Configuration: Straight Pattern / Inline (Floor connection style)
 
Up for sale is a genuine, professional-grade Oventrop 1015883 Multiflex F radiator connection H-block. This straight-pattern valve is designed for bottom-entry compact panel radiators (fully compatible with top brands including Buderus, Runtal, De'Longhi, Kermi, Stelrad, and Purmo).
The straight configuration is specifically meant for supply and return lines that come straight up out of the floorboards. It features built-in dual isolation/shut-off screws with a soft-sealing design, allowing you to isolate and service an individual radiator unit without draining down the whole building's heating zone loop.
⚙️ Key Technical Specifications
Brand: Oventrop (Made in Germany)
Series: Multiflex F (ZB Series for Two-Pipe Systems)
Center-to-Center Distance: Standard 50 mm (1.97") loop spacing
Pipe Side Connection: 3/4" Male Thread (Flat/Face-sealing Euroconus compatible for compression fittings)
Radiator Side Connection: 1/2" Male NPT/Threaded union inserts
Material: Heavy-duty, corrosion-resistant Nickel-Plated Brass
Functions: System balancing, proportional flow setting, and individual loop isolation/shut-off.
Max Operating Temperature: 120°C (248°F)
Max Pressure: PN 10 (145 psi)
🛠️ Common Applications
Bottom-connected hydronic panel or architectural bathroom towel-warmer radiators running on a two-pipe loop.
Ideal for clean installations where lines run straight down through the floor rather than back into a wall.