Standard_Parts_Catalogue

Page 1631 | 3.5 Controlling, Venting, Sealing of Liquids and Gases 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 1 d 2 l 1 3 Color How to order 1 2 3 GN655-G3/8-92-RT 1 1 l l b l l b b b • Rotor in blue color BL • Threaded bushings with NPT-Thread • Threaded bushings in SST AISI 316 On request When flow indicators GN 655 are used, a rotor rotates above a minimum flow volume Q, depending on the medium and its viscosity. The flow rate is visible from all sides. Flow indicators GN 655 have a high chemical resistance and are also suitable for liquids containing glycol. Please contact us if you need any additional information about media and pressure resistance. The flow indicators can be used in temperatures of up to 100 °C. The flow indicator can be mounted in any position. The direction of flow and the installation position are irrelevant. see also... • Stainless Steel Strainer Fittings GN 7405 → Page 1628 • Oil Level Indicators GN 650 → Page 1564 • Oil Level Indicators GN 650.2 → Page 1566 Information • Sight glass Borosilicate glass (Pyrex®) - - Temperature resistant up to 100 °C - - Highest chemical resistance • Rotor - - Technopolymer Polypropylene (PP) - - Red RT • End pieces - - Technopolymer Polypropylene (PP) - - Black, matte finish - - Threaded bushings brass • Connecting elements Brass nickel-plated / Steel zinc-plated • O-rings Rubber NBR (Perbunan ® ) • Plastic Characteristics → Page 2158 • Stainless Steel Characteristics → Page 2166 • RoHS Specification 3 1 2 d l 1 b 1 b 2 l 2 s Max. flow in l/min Max. permis- sible operating pressure in bar ≈ Necessary minimum flow volume Q in l/min Max. pressure drop due to the flow indicator in bar Water Hydraulic oil (HPL 22) Hydraulic oil (HPL 64) G 1 ⁄ 4  66 44 27 22 20 10 25 0,6 2,5 3,5 0,15 G 3 ⁄ 8  92 60 40 36 28 20 15 1,2 3 4 0,25 G 1 ⁄ 2  92 60 40 36 28 40 15 1,2 3 4 0,3 G 3 ⁄ 4 114 70 70 46 46 60 15 2,1 3,7 5 0,17 G 1 114 70 70 46 46 80 12 2,1 3,7 5 0,15 Original design HVF GN 655 Flow Indicators Plastic