2gm series single-absorb twin-screw pump this product is a small external bearing type single-suction twin-screw pump, flux ranging 0.9-60m3/h, pressure 0.4-3mpa, without heating chamber or safety valve attached with. the bearing bore and pump bore are separated by mechanical seal and skeleton oil seal. type is of good seat tightness. it possesses the features go small volume, with application, eases in maintenance and wash.