3.3mm Straight Pattern

Standard 3.3mm needles provide adequate strength and is suitable for the majority of balancing valves currently produced throughout the world. The overall length is controlled to ensure that the needle enters the waterway within the testpoint without velocity impingment from the flow of water through the balancing valve. Shown with dust caps removed. Stainless steel and brass construction 3.3mm dia x 37mm needle length (circa 35.5mm effective needle length if O-ring is fitted).