HHE 2022-2023

325 Five UNIONS FOR HIGH SPEED, MQL, COOLANT, AIR AND DRY RUN APPLICATIONS DESCRIPTION These unions are designed for machine tool spindles rotating at high speed with fluid (coolant, air or MQL) passing through or dry when needed. The seals, balanced and microlapped, remain always closed without problems both with fluid passing through (wet run) or without fluid (dry run). Do not use the unions at max application limits without consulting ROTOFLUX. SPECIFICATIONS COOLANT AIR, MQL DRY RUN Max. pressure BH08 BH10 100 bar (1450 psi) 80 bar (1160 psi) 10 bar (145 psi) 10 bar (145 psi) – – Max. temperature +90°C (+194°F) Max. rotation speed BH08 = 22000 rpm, BH10 = 18000 rpm MATERIALS Housing Aluminium Internal body / rotor Stainless steel AISI 304 Standard seals Carbide and graphite ROTARY UNIONS COOLANT – DRY RUN New HIGH SPEED UNIONS FOR COOLANT – DRY RUN RIGHT HAND THREAD – RADIAL PART NUMBER ROTOR SIZE INLET LENGTH HEX A/F PRICE RBH081501-04R M16 x 1.5 G1/4” 94 mm 17 £775.65 RBH101701-04R M16 x 1.5 G1/4” 114 mm 17 £813.02 RIGHT HAND THREAD – AXIAL RBH081502-04R M16 x 1.5 G1/4” 96 mm 17 £775.65 RBH101702-04R M16 x 1.5 G1/4” 114 mm 17 £813.02 New HIGH SPEED UNIONS FOR COOLANT – DRY RUN LEFT HAND THREAD – RADIAL PART NUMBER ROTOR SIZE INLET LENGTH HEX A/F PRICE RBH081501-05L M16 x 1.5 G3/8” 94 mm 17 £775.65 RBH101701-05L M16 x 1.5 G3/8” 114 mm 17 £813.02 LEFT HAND THREAD – AXIAL RBH081502-05L M16 x 1.5 G3/8” 96 mm 17 £775.65 RBH101702-05L M16 x 1.5 G3/8” 114 mm 17 £813.02 1500 1500 INSTALLATION Even though ROTOFLUX unions are solid and stout, they must be handled with care. For a proper installation we suggest to proceed as follows: • Make sure that the fluid circuit, when new, has been properly cleaned and made free from any machining burr or abrasive particle. In existing fluid circuit make sure that the filter quality and functionality are in accordance with the normal requirements of hydraulic circuit. • Clamp in a bench vice the rear of the union and fasten the flexible hose. (sketch 1). • Do not use solid pipes. • Install the rotary union on to the shaft. (sketch 2). • Connect the flexible hose to the supply line. Make sure that the union is not installed taut. (sketch 3). • When using metallic flexible hoses in short space with sharp curves, use rigid 45° or 90° elbows to avoid undue stresses. (sketch 4). Check that the union does not rotate eccentric or wobbling. If the fluid is hot or dangerous for any reason, apply a union guard. When required, lubricate periodically the union. Inspect periodically the union to ensure the necessary maintenance and detect any leakage.