Gas gate valve OPTIVALVE PLUS™ F4 DN400 – solid flanged fitting for medium-pressure gas networks. The valve is designed for natural gas networks and transmission pipelines in the temperature range –10°C to +60°C. Steel body and steel weld ends guarantee durability, safety and tightness even under the most demanding conditions.

Applications: transmission and distribution gas networks; industrial installations with natural gas and hydrogen; medium-pressure systems; systems with natural gas-hydrogen mixtures (up to 7 bar). Construction features: steel weld ends; fully rubber-coated NBR wedge with double soft sealing; three spindle sealing rings replaceable under pressure; very low closing torque; patented upper sealing surface; approved for hydrogen up to 7 bar; cover per GW 336 for spindle extension. Technical data: DN 400; face-to-face PN-EN 558-1 series 14 (F4); MOP 10 bar / PN16 (7 bar H₂); flanges PN-EN 1092-2 PN10/PN16; operating temperature –10°C to +60°C. Coating: epoxy min. 250 μm; optional PUR per PN-EN 10290. Certificates: CE (PED), BSI Kitemark. Standard: PN-EN 13774, DIN 3230-5, GIS/V7-1.