DMX and DMXD Pumps Date goes here 1
TYPE DMX AND DMDX PUMPS Flowserve Main Menu Introduction Features and Benefits Hydraulic Range and Capabilities Testing Capability Applications Summary 2
Introduction The DMX is a horizontal split case, dual volute, heavy duty, high pressure multistage pump with opposed impellers designed to meet API 610 latest edition. It is available in various sizes, single or double suction first stage impeller and material combinations making it suitable for service on a wide range of process and industrial applications. 3
Introduction DMX Heritage The DMX pump line is the family name of our axially split multistage pumps. It primarily consists of the heritage IDP DA and DAD pumps, but can include other heritage products such as: Pedigree tree DMX pump line: Byron Jackson DVMX (including DVMXD) United Pumps MSN (including MSND and WMSN) BW/IP Pumps MX (integrated BJ and United products) Currently we have an extensive installed pump population base with over 7,500 Flowserve DMX pumps worldwide 4
Introduction DMX Product Range Limits DMX pump can be selected for duties within following limits: Flow to 3633 m 3 /h (16,000 GPM) Head to 2712 m (8900 ft) Temperature to 260 C (500 F) 5
Introduction The DMX Nomenclature can be explained by using the following 4 X 11 DMXDH A - 6 example: 11 = max impeller diameter (inch) 4 = discharge nozzle size (inch) 6 = number of stages A = performance hydraulic H = high pressure casing (if shown) D = Double suction (if shown) 6
Pump Casing is near centerline mounted to maintain alignment during operation at elevated temperatures.. Casing is supplied with minimum flange ratings of ASME B16.5 Class 600 suction and discharge. Class 900, 1500 and 2500 also are available to meet the required operating pressures. Flanges are cast integrally with lower casing half, permitting pump disassembly without disturbing piping connections. 7
Rotating Elements include large diameter shafts and short bearing spans to minimize deflection. Final two plane dynamic balancing and TIR run-out verifications are conducted on assembled rotors to assure optimum mechanical performance throughout the operating range. Shaft Options include double extension for connection to auxiliary pumps or hydraulic turbines, and special shaft end machining for hydraulic fitted couplings. 8
Cap Nuts are arranged on the parting flange of the top casing half, allowing easy casing removal for rotor inspection and maintenance. Axially Split Construction allows removal of the rotor without disturbing the motor or suction and discharge piping. Renewable Casing and Impeller Rings control interstage leakage and provide hydraulic stability during operation. Optional laser hardened or non-metallic wear rings in Graphalloy, PEEK and other materials are available. Graphalloy is a registered trademark of Graphite Metallizing Corporation. PEEK is a registered trademark of Victrex plc Corp. 9
Axially Split Casing Benefits Ease of disassembly and reassembly Enables inspection of running clearances without rotor disassembly Allows removal of the entire assembled rotor without disturbing the motor or suction and discharge piping 10
Dual Volutes on All Sizes Benefits Double volute case provides complete balance of radial hydraulic forces Identical waterways in top and bottom casing halves allows uniform thermal expansion Totally encased parting flange gasket Included for all sizes except for the smallest 3X8 size. 11
Three Shaft Duty Options: Standard, Oversized, and Extra Oversized Benefits Allows competitive shaft diameters over a wide range of torque values Minimize seal dimensions Increases application range Stepped shaft for ease of impeller mounting Shaft end taper fit for coupling eases assembly and disassembly 12
All Capnuts Are Located on the Top of the Casing Benefit Ease of assembly and disassembly 13
Double-Suction First-Stage Benefits Reduced NPSH required over the operating range Allows for safe operations at higher speed Eliminates the need for a booster pump Increases life as a result of NPSH margin Available in all sizes except 3x8 and 3x12 14
Opposed Impellers Benefits Assures axial hydraulic balance throughout entire operating range Eliminates critical clearance axial balance devices and leak-off systems Closed impeller design 15
Sample Opposed Impeller Flow Paths 16
Wear Rings, Stage Pieces and Bushings Benefits Low cost wear pieces designed to protect expensive castings Normal wear distribution - no weak link Components designed for uniform pressure drop perunit length Solid rings and throttle bushing design Split center and channel ring design Optional LASER hardened wear components 17
Wear Ring Mounting Wear Ring Set Screws Each wear ring is held in place by 3 axial set screws. Benefits No stress concentration points. Set screws secured against centrifugal forces. No effects on hydraulics and pump performance. 18
Wear Ring, Stage Piece and Bushing Material Options Wear Part Materials Cast iron 420SS Hardened Benefit Allows Flowserve to select the best combination for the application Laser Hardened 316SS Hard Face Nitronics 50/60 PEEK Graphalloy 19
Split Channel Rings and Center Bushing Benefits Eliminates the need for disassembly of the rotor after dynamic balance Allows easy inspection and replacement Split Channel Ring Split Center Bushing 20
Large Seal Chambers Meet API 610 and API 682 Benefits Ensure generous flow of process liquid around the seal faces Accepts all seal types such as Type A, B and C cartridge type mechanical seals in single, dual and double arrangements. All major seal vendors available 21
Bearing Arrangements Three styles to meet the application requirements: Ball Radial / Ball Thrust for low energy density duty Sleeve Radial / Ball Thrust for medium duty Sleeve Radial / Tilt Pad Thrust for high energy duty and high speed Flowserve will recommend the optimal and most economic bearing arrangement that meets the application requirements 22
Bearing Arrangements Ball Radial / Ball Thrust Most cost effective and first choice bearing arrangement Wide availability of parts Proven reliability 23
Bearing Arrangements Ball Radial / Ball Thrust Single row, deep groove 6200 Series ball on inboard side to carry radial loads Preloaded angular contact 7300 Series, duplex mounted (back-to-back) to carry thrust loads 24
Bearing Arrangements Heavy-Duty Oil Rings provide lubrication to the bearings. Ball Radial / Ball Thrust Labyrinth Flinger positively locked on the shaft with set screw. Labyrinth Type Shaft Seals (non-sparking) effectively retain oil and prevent entry of foreign material into the bearing housing. Other type bearing isolators can be made available upon request. 25
Bearing Arrangements Plugged Ports allow visual inspection of the oil rings. Ball Radial / Ball Thrust Bearing Housing End Covers located on ends facilitate inspection and maintenance of bearings. Solid Circular Housings are provided with a flange for 180 or 360 degrees mounting to the pump casing with cap screws and dowel pins, permitting easy alignment. 26
Bearing Arrangements Sleeve Radial / Ball Thrust Sleeve / ball arrangement increases load carrying ability over ball / ball 27
Bearing Arrangements Sleeve Radial / Ball Thrust Axially split, shell type, steel backed babbitt-lined sleeve bearing on both inboard and outboard end to carry radial loads. Preloaded angular contact type 7300 Series, duplex mounted (back-to-back) to carry thrust loads. 28
Bearing Arrangements Heavy-Duty Oil Rings provide lubrication to the bearings. Sleeve Radial / Ball Thrust Labyrinth Flinger positively locked on the shaft with set screw. Labyrinth Type Shaft Seals (non-sparking) effectively retain oil and prevent entry of foreign material into the bearing housing. Other type bearing isolators can be made available upon request. 29
Bearing Arrangements Plugged Ports allow visual inspection of the oil rings. Sleeve Radial / Ball Thrust Axially-Split Housings for ease of maintenance are attached to the pump casing with a 180 or 360 degrees mounting flange with cap screws and dowel pins permitting easy alignment. Anti Rotation Pin prevents bearing shell from rotating on shaft. 30
Bearing Arrangements Sleeve Radial / Tilt Pad Thrust (KTB) Bearing Benefit Sleeve/Tilt Pad bearings allow operation at elevated power ranges and high speed 31
Sleeve Radial / Tilt Pad Thrust (KTB) Bearing Axially split, shell type, steel backed babbitt lined sleeve bearing on both inboard and outboard end to carry radial loads. Thrust bearing in outboard housing is a tilt-pad type, self-aligning, pivot shoe bearing assembly capable of carrying thrust loads in either direction. 32
Bearing Arrangements Anti-Rotation Pin prevents bearing shell from rotating on shaft. Sleeve Radial / Tilt Pad Thrust (KTB) Bearing. Labyrinth Type Shaft Seals (non-sparking) effectively retain oil and prevent entry of foreign material into the bearing housing. Other type bearing isolators can be made available upon request. 33
Bearing Arrangements Coupling connects pump shaft to lube oil pump. Sleeve Radial / Tilt Pad Thrust (KTB) Bearing Lube Oil Pump is driven by pump shaft. Force feed lubrication is required for both sleeve bearings and thrust bearing. Axially Split Housings for ease of maintenance are attached to the pump casing with a 180 or 360 degrees mounting flange with cap screws and dowel pins permitting easy alignment. 34
Standard and High-Pressure Casing Options Benefits Allows competitive material weight for a wide range of pressures. Pressure ratings vary by size. Standard pressure casings MAWP from 1800 psi (124 bar) to 2500 psi (172 bar) High-pressure casings MAWP from 2600 psi (179 bar) to 4000 psi (276 bar) 35
Additional Standard Construction Features Baseplate Coupling Coupling Guard Impellers Nozzles Rotation Shaft Testing Fabricated steel rim type under pump and motor Flexible spacer type Aluminum or Brass Shrink fit on shaft and keyed 600# - 2500# ANSI R.F. CCW (viewed facing coupling end) NEMA tapered at coupling Non-witnessed hydrostatic and performance 36
Optional Interstage Take-Off for BFW Applications Benefit Interstage take-off (ITO) allows low pressure and high pressure boiler feed services to be handled with one single pump. Notes: To balance radial loads, the ITO flow is taken from both the top and bottom casing and KTB trust bearing is needed to handle the variable axial loads. 37
Optional Destaging Benefit Destaging allows for a future change in operating conditions by removing or adding impellers. 38
Optional Laser Hardened Wear Parts Benefit Laser Hardened Wear Parts provides a very hard surface to prevent galling while eliminating the potential for cracking in solid hardened materials 39
Standard Material Columns Code Casing Internals API S-4 Carbon Steel Cast Iron API S-6 Carbon Steel 12 % Chrome API C-6 12 % Chrome 12 % Chrome API A-8 316 SS 316 SS API D-1 Duplex SS Duplex SS API D-2 Super Duplex SS Super Duplex SS Special materials are available upon request but may require additional lead-time. 40
Standard Packaging Options All bedplates options Motor / turbine / engine Speed increasing and reducing gears All types of couplings All API 610 mechanical seal flush piping plans Noise reduction blanket or noise enclosure All API 610 cooling water piping plans Lube oil systems Special instrumentation 41
Hydraulic Range and Capabilities DMX Pump Performance Envelope Sizes: 8 cm (3 in) thru 41 cm (16 in) size discharge Stages: 2 to 14 stages (depending on size) Flows: 45 to 3633 m 3 /h (200 to 16 000 gpm) Heads: 300 to 2712 m (1000 to 8900 ft) Specific Speed: 900 to 2000 Ns Please contact CSOA for applications not covered in Affinity. 42
Hydraulic Range and Capabilities Application Guidelines for Standard DMX Pump Operating pressure to 275 bar (4000 psig) maximum Operating temperature to 260 ºC (500 ºF) maximum Specific gravity > 0.5 in Affinity Speeds to 6000 rpm Hydrotest pressure to 425 bar (6000 psig) - All vary by pump size - Specific gravity from 0.3 to 0.5 only with engineering approval 43
Hydraulic Range and Capabilities API 610 11th Edition Par 6.3.9 Limitations for Axial Split Type Pumps: Maximum pumping temperature of 200 C (400 F) Liquids with specific gravity < 0.70 at pumping temperature Liquids with rated discharge pressure > 100 bar (1450 psig) Flowserve has exceeded these limitations with customer approval and we have sufficient references available. 44
Hydraulic Range and Capabilities 50 Cycle 45
Hydraulic Range and Capabilities 60 Cycle 46
Hydraulic Range and Capabilities Power Recovery Turbines Pumps can be used as an HPRT to recover energy from the system in various configurations. - All pumps can be used running reverse - Pumps can be tailored to create a more optimized solution Turbine Generator Turbine Gearbox Generator 47
Testing Capability Extensive Global Test Facilities Benefit Testing capabilities at 50 or 60 Hz, up to 18 600 kw (25 000 hp), with gears or variable frequency drive allows Flowserve to meet any customer requirements. 48
Testing Capability DMX Complete Unit Testing (String Test) 49
Applications Pipeline Water injection Boiler feed Refinery charge Reverse osmosis feed Descaling Mine dewatering CO 2 Pipeline / Injection Energy Recovery Chemical Process Charge 50
Applications Pipeline Propane / ethane pipeline service 6x11 DMX - 4 stage Sleeve / ball bearings Product cooled bearing housings 51
Applications Water Injection Good upgrade and re-rate opportunities 3x10 DMX-B 11 stages Duplex material Speed: 3600 RPM Power: 513 kw 52
Applications Lean Amine Pump Unit Shown here with reverse running DMX as a power recovery turbine 6x11 DMX - 5 stage pump 4x11 DMXT - 4 stage recovery turbine All drive train components are self lubricated 53
Applications Boiler Feed 3x10 DMXH - 14 stage High pressure casing Sleeve / KTB bearing with lube system Plan 23 seal flush piping 54
Applications Refinery Charge Pump Shown here with reverse running DMX as a power recovery turbine device 4x10 DMX - 10 stage pump 4x9 DMXT - 7 stage recovery turbine Double mechanical seals on pump & turbine 55
Applications Reverse Osmosis Membrane Feed Peloton wheel, DWEER and reverse running pump type power recovery turbine configurations also available. 8x13 DMX 5-stage pump Flowserve Pelton Wheel power recovery turbine 56
Applications Descale Spray Pump Special consideration is required for heavy and tough service in this descale spray application. 6X11DMX- 9 stage Automatic re-circulation valve for MCSF protection Special casing rib added for this heavy duty application 57
Applications CO 2 Pipeline, Texas USA Pump designed for high suction pressure with high pressure seals & sealing systems and VFD drive. 8X14DAH-2 stage pump 3600 RPM Suction pressure 146 barg (2127psig) High pressure dual seals / systems Variable frequency motor drive 58
Applications Refinery Reactor Feed Pump 6X13DMXD- 6 stage Power: 2576 kw Speed: 3600 rpm Double mechanical seals for safe operation Sleeve / KTB bearings for high reliability 59
DMX Summery Features Heavy-duty design Double volute case Opposed impeller design Horizontal split case Nss < 11000 Robust shaft design Benefits Meets API 610-11 th edition Balanced radial forces for full operating range Complete axial balance Permits balance/assembly of rotor Operation over wider range Reduces shaft deflection (Continued) 60
DMX Summery Features All top case bolting Stuffing box dimensions meet API 682 Optional LASER hardened wear components Pinned tongue and groove case wear rings Wide hydraulic range Robust shaft design Benefits Ease of disassembly and assembly & tightening nuts Accommodates single, dual and double arrangements mechanical seals Reduces galling and erosion Simplify assembly Allows use of DMX as Hydraulic Power Recovery Turbine (HPRT) Reduce the chance of rubbing at startup/coast down 61
DMX Summery Why Choose a Flowserve DMX? Extensive hydraulic performances Customizable design with pre-engineered features Product quality Reputation IDP, Byron Jackson and United Extensive installed pump population base with over 7500 Flowserve DMX pumps worldwide Manufactured in seven locations around the world and supported with over 180 local QRC s. 62
Thank you for your attention 63