RX Rotary Union For water, air, and thermal oil service

Transcription

1 RX Rotary Union For water, air, and thermal oil service dvanced rotary unions for fluid and air service. Engineered reliability for demanding applications.

2 RX Rotary Union Overview of the RX Rotary Union... 8 to to to to 6 Tapered Roller earings... 2 Repair its...4 Quick Release Flange...6 Technical ata... 8 Installation Recommendations Other Rotary Unions ingle flow rotary union ual flow rotary union Quick elect hart Type edia ressure (ax.) Temperature (ax.) peed (R) Water Thermal Oil team ir R I F RX ,500 8 to 2 2 to 4 to 6 RX ,500 RX ,500 RX ,500 RX ,000 RX ,000 RX ,000 RX ,000 RX RX RX RX Recommended cceptable Not Recommended onsult adant ohnson for application recommendations and for high-temperature RX-, RX-2, and RX- configurations.

3 Overview Tapped vent holes recision ball bearings tainless steel springs tainless steel rotor Two-piece housing mooth flow elbow O-ring secondary seal ilicon carbide or carbon graphite seal ring Tungsten carbide counterseat Features u prings located outside the flow area u tainless steel rotor u Two-piece housing, on-machine seal replacement u O-rings fully captured in glands u alanced seal assembly u Full flow area u atched seal faces u earing isolation system available u Tungsten carbide counterseat enefits u Improved reliability, increased flow area u orrosion resistant u Reduced down-time and cost of maintenance u Robust design, no risk of o-ring slipping u Extended operating life u Low pressure drop u aterials selected for specific service u Increased bearing protection u dded toughness and shock resistance The RX rotary union connects stationary piping to a rotating device. The fluid is sealed by precision, micro-lapped seals that provide a uniform, full-flow design. The union is supported by two widely-spaced anti-friction bearings and is available with a bearing isolation system for added bearing protection. The RX union is capable of intermittent dry running and features a 00% pure-molded carbon graphite or silicon carbide seal and tungsten carbide counterseat.

4 8 to 2 tandard RX Ratings ressure: Temperature: peed, straight thread: peed, NT thread: edia: 200 psig ( bar) 220 F (05 ),500 R,500 R Water, ir onsult adant ohnson for RX-, RX-2, and RX- unions for applications up to 450 F (22 ). 2 F F H G ingle flow taper thread rotor ual flow straight thread rotor NT Rotor Thread ingle Flow art I ual Flow Fixed ipe ual Flow Rotating ipe F G H 2 NT NT Fixed ipe Rotating ipe O pprox. Weight 8 8 NT RH NT LH UNF RH UNF LH RH LH * 2 lb * 2 lb x * 0.9 g 2 NT RH NT LH lb UNF RH UNF LH lb 2 RH LH g 4 NT RH NT LH lb 4-4 UN RH UN LH lb 4 RH LH g * Fixed tube O.. imensions are for reference only and subject to change. 4

5 RX ingle and dual flow NT Rotor Thread ingle Flow art I ual Flow Fixed ipe ual Flow Rotating ipe F G H 2 NT NT Fixed ipe Rotating ipe O pprox. Weight NT RH NT LH lb 2-2 UNF RH UNF LH lb RH LH g 4 NT RH NT LH lb UN RH UN LH lb 4 RH LH g 2 NT RH NT LH lb UN RH UN LH lb 2 RH LH g imensions are for reference only and subject to change. recision ball bearings tainless steel springs tainless steel rotor mooth flow elbow Two-piece housing O-ring secondary seal ilicon carbide or carbon graphite seal ring Tungsten carbide counterseat 5

6 2 to tandard RX Ratings ressure: Temperature: peed, flanged rotor: peed, threaded rotor: edia: 200 psig ( bar) 220 F (05 ),000 R 750 R Water, Thermal Oil onsult adant ohnson for RX-, RX-2, and RX- unions for applications up to 450 F (22 ). F F Taper thread rotor Q flange rotor NT Rotor art I F pprox. Weight NT RH lb 2 NT LH RH * 280 g 2 - LH Q Flange lb 2 2 NT RH NT LH lb RH LH * 4 20 g Q Flange lb NT RH lb NT LH RH * g - LH 2560 Q Flange lb *Lock-up dimension for straight threads. imensions are for reference only and subject to change. 6

7 RX ingle flow N N E E 2 and 2 2 integral flange integral flange Rotor art I * E N 2 NT 9 O.. Flange x lb 2 (50 lb ) 9 O.. Flange x lb 2 2 NT 9 O.. Flange x lb 2 2 (50 lb ) 9 O.. Flange x lb NT 9 O.. Flange x lb (50 lb ) 9 O.. Flange x lb * For 2 and 2 2 sizes, the dimension is the I of the counterbore. ounterbore depth is 0.25 (6.4 mm). For size, the dimension is the O of the pilot. ilot length 0.0 (7.6 mm). imensions are for reference only and subject to change. pprox. Weight tainless steel springs eal chamber barrier recision ball bearings tainless steel rotor Two-piece housing Tungsten carbide counterseat tainless steel assembly plate ilicon carbide or carbon graphite seal ring 7

8 2 to tandard RX Ratings ressure: Temperature: peed, flanged rotor: peed, threaded rotor: edia: 200 psig ( bar) 220 F (05 ),000 R 750 R Water, Thermal Oil onsult adant ohnson for RX-, RX-2, and RX- unions for applications up to 450 F (22 ). F F H H G G Taper thread rotor Q flange rotor NT Rotor Fixed ipe art I Rotating ipe F G H NT NT Fixed ipe Rotating ipe O pprox. Weight 2 NT RH NT LH lb RH LH * g 2 2 Q Flange NT RH NT LH RH * LH Q Flange lb 45 lb 20 g 45 lb NT RH NT LH lb 2 - RH LH * g Q Flange lb 8 *Lock-up dimension for straight threads. imensions are for reference only and subject to change.

9 RX ual flow N N H E H E G G 2 and 2 2 integral flange integral flange Rotor Fixed ipe art I Rotating ipe * E G H N NT Fixed ipe Rotating ipe O pprox. Weight 4 NT 9 O.. Flange x (50 lb ) 9 O.. Flange x NT 9 O.. Flange x (50 lb ) 9 O.. Flange x NT 9 O.. Flange x (50 lb ) 9 O.. Flange x lb lb lb lb lb lb * For 2 and 2 2 sizes, the dimension is the I of the counterbore. ounterbore depth is 0.25 (6.4 mm). For size, the dimension is the O of the pilot. ilot length 0.0 (7.6 mm). imensions are for reference only and subject to change. Two-piece housing tainless steel springs eal chamber barrier recision ball bearings tainless steel rotor mooth flow elbow tainless steel assembly plate ilicon carbide or carbon graphite seal ring Tungsten carbide counterseat 9

10 4 to 5 tandard RX Ratings ressure: Temperature: peed: edia: 50 psig (0 bar) 00 F (50 ) 750 R Water, Thermal Oil 6 x /4 6 x /4 G E H E ingle flow threaded connection ual flow threaded connection Flow NT art I * E G H NT pprox. Weight ingle ual *ilot length 0.0 (7.6 mm) lb g lb g imensions are for reference only and subject to change. 0

11 RX eep groove ball bearing support 6 x /4 6 x /4 G E H E ingle flow flanged connection ual flow flanged connection Flow (50 lb ) art I * E G H (50 lb ) pprox. Weight ingle ual ingle ual *ilot length 0.0 (7.6 mm) lb g lb g lb g lb g imensions are for reference only and subject to change. Two-piece housing tainless steel springs re-packaged bearing cartridge U bushing for rotating pipe mooth flow elbow arbon graphite seal ring icro-lapped carbide counterseat Integral flange

12 4 to 6 aximum RX Ratings ressure: Temperature: peed: edia: 50 psig (0 bar) 500 F (260 ) 750 R Water, Thermal Oil onsult adant ohnson for RX-, RX-2, and RX- unions for applications up to 450 F (22 ). 6 x /4 6 x /4 G E H E ingle flow threaded connection ual flow threaded connection Flow NT * E G H NT pprox. Weight lb ingle g ual lb g *ilot length 0.0 (7.6 mm). imensions are for reference only and subject to change. 2

13 RX-, RX-2, RX- Tapered roller bearing support N N G E H E ingle flow flanged connection ual flow flanged connection Flow (50 lb ) * E G H N (50 lb ) pprox. Weight ingle x lb g ual x lb g ingle x lb g ual x lb g ingle x ual x * For 4 and 5 sizes, pilot length is 0.0 (7.6 mm). ilot length for 6 size is 0.56 (4.2 mm). imensions are for reference only and subject to change. Two-piece housing tainless steel springs re-packaged bearing cartridge mooth flow elbow Full-flow rotor ntimony impregnated bushing for rotating pipe arbon graphite or silicon carbide seal ring icro-lapped counterseat Tapered roller bearings

14 Repair its Type RX rotary unions feature a cartridge design that allows for application-specific configurations. For demanding applications with higher operating temperatures, rotational speed, or lower quality fluids, three cartridge options are available: RX-, RX-2, and RX-. RX RX- RX-2* RX-* eal Ring aterial arbon Graphite arbon Graphite ilicon arbide ilicon arbide ounterseat aterial Tungsten arbide Tungsten arbide ilicon arbide** ilicon arbide** ack-up Lip eal No Yes Yes Yes earings ( 8 ) eep Groove eep Groove eep Groove eep Groove earings (4 6 ) eep Groove Tapered Roller Tapered Roller Tapered Roller * RX-2 and RX- not recommended for dry running. ** Tungsten carbide counterseat available for 5 and 6 unions. Lip seal bearing protector eal ring ounterseat econdary seal Lip seal bearing protector Tapered roller bearing with high temperature grease 4

15 Rotary Union ize artridge Temperature (ax F) eal Repair it art I earing Repair it RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX RX eal Repair it includes: u eal ring u ounterseat u O-rings u prings u Head gasket u O-ring lubricant earing Repair it includes: u eal repair kit u earings u Retaining rings for body and rotor 5

16 Quick Release Flange plit wedge etal Q-gasket Rotor Q-rotor flange ournal flange Rotary Union ize Water/ir *Flange et art I Thermal Oil No. of Q-flange Holes 2 6E E0050 6E E0050 6E E0250 6E E0600 6E E0250 6E E E E000 6E002 5 * Flange set includes Q-rotor flange, split wedge, metal gasket, and retaining clip. Non-standard flange drilling available on request. Features u plit wedge construction for ease of installation u Q-Flange can be used for LH and RH rotation u ounting with multiple bolts enefits u Reduced installation and maintenance time u implified inventory u Easy installation with hand tools 6

17 F E H G Rotary Union ize E F G H pprox. Weight lb lb lb lb lb lb lb lb imensions are for reference only and subject to change. 7

18 Technical ata Rotary union sizing Rotary unions that are used for liquid flow are typically sized so that the pressure drop is less than psi (0.20 bar) for open-loop systems and less than 6 psi (0.40 bar) for closed-loop systems. The pressure drop through a dual flow rotary union is higher than the pressure drop through a single flow union of the same size, because the internal flow area is less. Use the appropriate chart below for your configuration. Note that the pressure drop shown for dual flow unions is for the supply passage. The total pressure drop (flow in and flow out) would be approximately 2x this value. 4.0 RX Rotary Union (ingle Flow).5 /8 /2 /4 /4 /2 2 2 / ressure rop (psi) Water Flow Rate (gpm) 4.0 RX Rotary Union (ual Flow).5 /8 /2 /4 /4 /2 2 2 / ressure rop (psi) Water Flow Rate (gpm) 8

19 ommon pipe dimensions Weight NT threaded pipe Nominal chedule O (inch) Wall (inch) Internal rea (in 2 ) ipe (lb/ft) Water (lb/ft) NT Take-Up (inch) NT take-up Torque values Fastener ize Torque (Ft-lbs) olt tress t Recommended Torque (psi) , , , , , , , , ,000 Ordering information If you have an existing adant ohnson rotary union with a product label affixed to the housing, the art I written on the label is all that is required to order a replacement union. For new applications or if no art I is available, the following data are requested:. Number of passages (single flow or dual flow) 2. Rotor type (threaded, Q-flange, or integral flange). Rotor thread (right- or left-hand and type) 4. upply pipe (none, fixed, or rotating) 5. ervice (water, thermal oil, air, or steam) 6. Fluid pressure art I Order T 7. Fluid temperature 8. Rotational speed (rpm) 9. onnection sizes shown on drawing (,,, ) 9

20 Recommendations Flexible hose To ensure free movement of the rotary union and elimination of side loading, the proper installation, type, and length of flexible hose should be used. Recommended hose length, bend, and offset (inches) X ipe ize inimum Length (X) inimum end Radius aximum Offset Threaded both ends X Threaded one end, lap flange other end X Fixed flange one end, lap flange other end Offset inimum bend radius is limited by hose size and material. ompound hose (recommended) Filtration It is important to follow the filtration requirements recommended by the machinery manufacturer. Type RX rotary unions do not require additional filtration other than what is recommended for the fluid circulation system (typically micron). Guarantee Type RX rotary unions are tested prior to shipment and are warranted against manufacturing defects for 2 months. adant ohnson s global sales and service network stands behind its products and provides support to more than 50 countries worldwide. 20

21 Threaded supply pipe threaded supply pipe is used for dual flow installations and is connected to the rotary union elbow using NT threads. ee page 9 for the NT take-up dimension. The size of the supply pipe determines the flow rate for a particular union size. The larger the pipe size, the higher the potential flow rate for a given size union. To avoid excessive stress at the pipe thread, the supply pipe length should not be longer than 4x the overall length of the rotary union. Fixed tube supply pipe The fixed tube supply pipe is made of stainless steel tubing and is silver-soldered into the elbow of the rotary union. The lighter weight and thinner wall sections allow for higher flow rates and higher rotational speeds compared to alternative supply pipe designs. To avoid excessive stress at the tube-elbow interface, the supply pipe length should not be longer than 6x the overall length of the rotary union. Rotating supply pipe rotating supply pipe can be produced from tubing or iron pipe. The end of the pipe that is inserted into the rotary union elbow is machined to a specific tolerance to provide the proper fit and performance. It is recommended that the rotating supply pipe be supported inside the roll when attempting to use a supply pipe longer than 4x the length of the union. straight thread rotor (for example, or UN) is used to ensure concentricity. onnectors adant ohnson rotary unions are attached to roll journals using threaded, flanged, or quick-release nipples. Tapered threads Tapered threads with adapter flange traight threads Quick-release flange mounted to journal Integral flange 2

22 Other Rotary Unions t adant ohnson, our world revolves around designing and manufacturing rotary joints and precision unions to meet our customers needs. ased on more than 75 years of innovation, we produce thousands of different rotary union configurations for a variety of process industries. Our full line of standard rotating unions is used in a wide variety of applications including steam, water, thermal oil, coolant, hydraulic oil, air, and other media. If you do not see what you need, our rapid design product development group is ready to provide a custom design based on your specific application needs. Type X for steam and thermal oil ( 4 to ) The X rotary joint is designed for steam and thermal oil applications with a stationary supply pipe. Its two internal carbon-graphite bearings permit self-alignment and long operating life even on cylinders that are not concentric. The convex seal ring and optimized seal diameter provide extended seal life and reduced maintenance for the X joint. The X rotary joint line is available in sizes from 4 to and can be used in single or dual flow applications. The joint is rated up to 650 F (4 ), 00 psig (20 bar), and 550 R. Type EL for steam and thermal oil (2 to 2) The EL rotary joint is designed for use with steam and thermal oil service. The double-guide design provides internal support for the joint and maintains alignment even when the roll or cylinder is not concentric. The EL is available in sizes ranging from 2 to 2 and is rated up to 650 F (4 ), 00 psig (20 bar), and 200 R. 22

23 Type G for coolant, water, air, and hydraulic oil The G rotary union is a high performance, high precision union for coolant, water, air, and hydraulic oil applications. Type G unions are generally applied to spindles, gun drills, milling, and other machinery. The G union is designed for smooth-running at speeds up to 50,000 R and pressures up to,600 psig (250 bar) in sizes ranging from 4 (0) to 5 8 (6). Type for pneumatic, hydraulic, and water applications The rotary union is a custom-designed multi-passage union for pneumatic, hydraulic, and water applications. The precision ball bearings are lubricated for life and housing materials include stainless steel, aluminum, steel, or brass. tandard passage sizes are 8, 4, 8, 2, 4, and with other sizes available. unions are available with up to 2 passages and rated up to 225 F (07 ),,000 psig (207 bar), and 500 R. Type OT for water cooling The Over-The-haft (OT) rotary union is applied to various types of driven rolls that require cooling through the driven side of the roll. The OT is made of stainless steel and bronze components and features a Quad-eal o-ring design for reliable sealing performance. For high-speed applications, a mechanical seal design is available. The OT rotary union is rated up to 200 F (9 ) and 50 psig (0 bar). 2

24 Local ssistance On Worldwide asis any suppliers have made a commitment to the international marketplace. ut few have taken that commitment as far as adant ohnson. To assure product availability wherever it's needed, adant ohnson joints, syphons, and related equipment are manufactured in sia, Europe, North merica, and outh merica. ecause knowledgeable advice and prompt service are as important as the products, adant ohnson has factoryauthorized representatives in nearly 50 countries. o no matter where you are, adant ohnson products, service, and assistance are nearby. NUFTURING LOTION 805 Wood treet Three Rivers, I 4909 U tel: fax: Nijverheidslaan Weesp, The Netherlands tel: fax: ia nhanguera, km 8,5-5/ , alinhos,, rasil tel: fax: adant is a global supplier of high-value, critical components and engineered systems used in process industries worldwide. ontact us: Wuxi National Hi-Tech Industrial evelopment Zone Wuxi ity, iangsu rovince, hina tel: fax: NT OHNON IN. 805 Wood treet Three Rivers, I 4909 U Tel: Fax: info@kadant.com RX Rotary Union-007 (U) 05/204 Replaces: RX-006a 204 adant Inc.