Rotating Unions

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6 Operating Data Maximum Water Pressure Model 55-555 750 PSI 50 bar Maximum Water Pressure Model 655 600 PSI 41 bar Maximum Saturated Steam Pressure (Intermittent) 15 PSI 1 bar Maximum Hot Oil Pressure 100 PSI 6.6 bar Maximum Speed NPT Threads Model 55-555 1,500 RPM 1,500/min Model 655 750 RPM 750/min Maximum Speed Straight Threads Model 55-255 3,500 RPM 3,500/min Model 355 3,000 RPM 3,000/min Model 525-555 2,500 RPM 2,500/min Model 655 750 RPM 750/min Maximum Temperature 250°F >250°F consult DEUBLIN Torque Ratings 55 Series Size ft.lbs Nm 55 1 ⁄4 0.34 155 1 ⁄3 0.50 255 1 ⁄2 0.68 355 1 1 ⁄3 1.80 525 1 1 ⁄3 1.80 555 2 1 ⁄2 3.40 655 3 4.07 Illustration shows duoflow with fixed supply pipe. Monoflow units have pipe plugs instead of an elbow. Supply Pipe (Non-<strong>Rotating</strong> Shown) Rotor Thread (See table) Wrench Flats Forged Brass Housing DEUBLIN General Purpose 55 Series <strong>Unions</strong> • Monoflow and duoflow design • Self-supported rotating union • Radial housing connection • Balanced mechanical seal • 3 vent holes • Forged brass housing • Stainless steel rotor • Special options: threaded vent holes, low torque design • Lubrication Guide page 55 Seal Combinations • Carbon Graphite/Bronze for water - Standard • Carbon Graphite/Ceramic for hot oil, hot water and saturated steam - Optional • Multi-purpose applications Seal Combination - E.L.S. • Tungsten Carbide/Ceramic for severe conditions (poor water quality), max. temperature 200°F Dual Ball Bearings Vent 1 - 8 4 7 - 6 8 9 - 8 6 0 0 o r w w w . d e u b l i n . c o m Stainless Steel Spring Duoflow Elbow (DUO)
Operating Data Maximum Water Pressure 150 PSI 10 bar Maximum Speed NPT Threads Model 57-557 1,500 RPM 1,500/min Model 657 750 RPM 750/min Maximum Speed Straight Threads Model 57-257 3,500 RPM 3,500/min Model 357 3,000 RPM 3,000/min Model 527-557 2,500 RPM 2,500/min Model 657 750 RPM 750/min Maximum Water Temperature 200°F >200°F consult DEUBLIN Torque Ratings 57 Series Size ft.lbs Nm 57 1 ⁄4 0.25 157 1 ⁄3 0.50 257 3 ⁄4 1.00 357 1 1 ⁄2 2.00 527 1 1 ⁄2 2.20 557 21 ⁄4 2.90 657 31 ⁄2 4.50 Silicon Carbide Keyed Rotor Seal Gasket Seal Guide Carbon Graphite/Silicon Carbide Floating Seal Coil Spring Viton-O-Ring DEUBLIN 57 Series with Silicon Carbide Seals, for Water Service • Monoflow and duoflow design • Self-supported rotating union • Radial housing connection • Balanced mechanical seal • Keyed rotor seal • Easy and quick replacement of sealing components (rotor seal, floating seal) • Ball bearings lubricated for life • For poor water quality (E.L.S.) • 3 vent holes • Forged brass housing • Stainless steel rotor • Special options: threaded vent holes Seal Combination - Standard • Carbon Graphite/Silicon Carbide Seal Combination - E.L.S. • Silicon Carbide/Silicon Carbide for severe conditions (poor water quality) Union Repair 1 - 8 4 7 - 6 8 9 - 8 6 0 0 o r w w w . d e u b l i n . c o m The 57 Series is designed for quick, easy replacement of both Floating Seal and the Rotor Seal. The “57‘s” seal is seated in a keyed counter bore at the rotor‘s end. The worn seal simply lifts out and the new one drops right in. Since the entire rotor does not need to be replaced or relapped, the repair is fast, easy and on the spot. As you only replace the seals, the repair cost is very economical. For Ordering Number of Repair Kit see page 5. DEUBLIN 7
Page 1 and 2: Engineered for Performance ROTATING
Page 3 and 4: DEUBLIN KEEPS THE WORLD ROTATING Si
Page 5: WE TREAT PRECISION AS AN EXACT SCIE
Page 9 and 10: 55 & 57 Series Duoflow Union Specif
Page 11 and 12: Operating Data Maximum Water Pressu
Page 13 and 14: 857 Series Specifications 7/8" 31 D
Page 15 and 16: B Port NPT 3 " ⁄8 3 " ⁄8 927-15
Page 17 and 18: B Port NPT Monoflow Rotating Union
Page 19 and 20: Flanged/Threaded Duoflow Fixed Pipe
Page 21 and 22: Operating Data Maximum Water Pressu
Page 23 and 24: Operating Data Maximum Saturated St
Page 25 and 26: 9000 Series Duoflow Union Specifica
Page 27 and 28: Operating Data 3/4" - 2" Maximum Sa
Page 29 and 30: Duoflow Rotating Union Models Size
Page 31 and 32: Operating Data Maximum Air Pressure
Page 33 and 34: B Port NPT Operating Data Maximum A
Page 35 and 36: Speed in RPM Operating Data Maximum
Page 39 and 40: Operating Data Media See table Filt
Page 45 and 46: Double Passage Models B Port NPT (2
Page 47 and 48: G G A B B A A F TYPE I G H A F J I
Page 49 and 50: Operating Data Media Water-based Co
Page 51 and 52: Axial ConnectionRadial Connection R
Page 53 and 54: DEUBLIN Around-The-Shaft Unions for
Page 55 and 56: Warranty For a period of one year f

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