GSL-3F-PTFE is a three-channel anti-corrosion gas mixing & delivery system. All parts coming in contact with gas are made of PTFE (e.g. valve, pipe, mixing tank, and flow meter). It is designed for delivering corrosive gases, such as hydrogen sulfide (H2S) and hydrogen selenide ( H2Se) for CVD processing. Specifications Floating meter Three anti-corrosive Floating Flow-meter made of PTFE material with s flowing rates of 10 - 1000 mL/min. Valves Three needle valves made of PTFE material control gas outlet on the front panel Gas Mixing Tank 1000 mL gas tank made of PTFE Each channel gas will flow into the tank for mixing before flow-out Pipe fitting Pipe fitting made of PTFE and accepts 1/4" pipe (nylon or stainless steel) Three Gas Inlet fittings (from gas tanks) are Installed on the right side of the cart Two-channel gases flow into a gas mixer container and one gas channel-independent (please review manual for drawing) Two gas outlet fittings (to tube furnace) are installed on the left side of the cart (one for mixing gas and one independent) 12' length 1/4" PTFE pipe is included for immediate use Mobile Station Heavy-duty Mobile Cart with four wheels and brake, where MTI small furnace can be put on the top Size600 mm (L) x 600 mm (W) x 650 mm ( H) Net Weight: 160 Lb Max. loading weight: 500 Lb Oxygen Monitoring An Oxygen Sensor can be used to monitor the oxygen level of gas(es) used in CVD systems for preventing or reducing oxidation. Please click the picture below to learn more: Application Notes If your CVD processing involves corrosive gas, such as H2S, please consider using PTFE flange on your tube furnace Also, please choose the anti-corrosion dry vacuum pump instead of an oil vacuum pump