Unique Cartridge Construction simplifies installation, enables more accurate seal setting, and keeps associated costs low.

Triple Redundant Seal Design mirrors existing seal system parameters. Each of the three stages can handle 100% of the system pressure.

Hydrodynamic Seal Face Technology outperforms hydrostatic designs with dramatically improved reliability and running periods.

Three different seal face lift designs are available to ensure non-contacting faces over a broad operating range.

Pressure is Automatically Redistributed to the remaining two stages in the event of a stage failure, allowing the plant to complete the fuel cycle.

Interchangeability of Stage Components enables spare parts inventories and carrying costs to be reduced.

Large Axial Travel Capability maximizes operating life; sealing integrity maintained through all plant transient scenarios.

Contamination-Free Pumpage without use of external fluid.

Hydraulics Are Custom Tuned for the actual duty point by project-specific design of multi-channel diffuser.

Diffuser Technology provides low vibration, wide flow range, virtually zero radial loads, and very low shaft deflection at any flow rate.

Dynamically Balanced Impeller limits vibration and assures smooth operation over wide flow range.

Features:

• Product lubricated silicon carbide radial and axial thrust slide bearings
• Venting of slide bearings area
• Positively locked, anti-rotation impeller nut with threads unexposed to pumped fluid
• Other configurations
  • PVML (standard sealed)
• Operating parameters
  • Flows to 500 m³/h (2200 gpm)
  • Heads to 275 m (900 ft)
  • Pressures to 40 bar (600 psi)
  • Temperatures to 200°C (400°F)

Pump Design incorporates double volute hydraulic passages for radial thrust balance and opposed impeller mounting for axial thrust balance.

Seal Chambers to API 682 dimensional criteria allow for installation of cartridge design single, dual unpressurized and dual pressurized mechanical seals to meet safety and environmental requirements.

Shaft Options include double extension for connection to auxiliary pumps or hydraulic turbines, and special shaft end machining for hydraulic fitted couplings.

Baseplates Designs and Pump Packages engineered to contract requirements.

Dynamic Balancing and TIR Verifications on assembled rotors assure optimum mechanical performance throughout the operating range.

Features:

• Choice of bearings
  • Ball radial and thrust
  • Sleeve radial and ball thrust
  • Sleeve radial and tilting pad thrust
  • Tilting pad radial and tilting pad thrust
• Choice of materials
  • Carbon steel
  • 12% chrome
  • Austenitic and duplex stainless steels
  • Monel

Operating parameters

• • Flows to 2950 m³/h (13 000 gpm)
  • Heads to 2130 m (7000 ft)
  • Pressures to 275 bar (4000 psi)
  • Temperatures to 200°C (400°F)
  • Speeds to 6000 rpm

Optimized Multi-Vane Diffuser and Channel Ring Design results in balanced radial loads and precise hydraulic performance over the entire flow range, including partial-load operation.

Tandem Impeller Design increases rotor stability and facilitates maintenance by permitting replacement of a single casing stage.

Dynamically Balanced Impellers are precision cast to improve hydraulic efficiency and performance repeatability.

Straight Style Balance Drum simplifies assembly since no axial setting is required.

Operating Parameters

• Flows to 1050 m³/h (4620 gpm)
• Heads to 3500 m (11 480 ft)
• Discharge pressures to 295 bar (4260 psi)
• Temperatures to 425°C (800°F)
• Speeds to 6000 rpm

Three Distinct Functions

• Recirculation (bypass) flow control for pump protection
• Pre-fill of decoking lines, hoses, manifolds, etc., at a predetermined flow rate to prevent water hammer
• Full flow to the decoking tool nozzles. Very low pressure drop (high Kv [Cv]) in full flow for reduced energy consumption

Features and Benefits

• Cost-effective solution
• Design and maintenance simplicity with minimal moving parts
• No foundation required

Design Features

• Long Stroke, Single Stem Operation
  • Assures no unwanted overlap of functions
• Non-Clogging Design
  • Passes particles up to 3 mm (1/8 in)
• Compact Design
  • Simplifies installation. Suitable for direct mounting on the jet pump
• Stainless Steel
  • Inlaid at all gasket surfaces, option for fully lined body
• Valve Stem Sealing
  • Using low friction elastomer rings. No adjustment…no packing required
• Proven, Replaceable, Durable Soft Seals
  • Assures zero leakage with water and coke fines – no lapping required during repairs
• Instant Return
  • To any operating mode upon command
• Actuation
  • Limitorque® motor operator is standard. Optional double-acting pneumatic actuator with positioner is available with 5.5 bar (80 psi) to 7 bar (100 psi) air supply requirement
• Decoking Valve Upgrade Options
  • A Flowserve decoking expert can help specify appropriate materials and design enhancements, controls and instrumentation for specific service requirements

Key Features and Benefits:

• Low pump submergence allows for greater energy generation.
• Low NPSHR for enhanced suction performance.
• Excellent heat dissipation design prevents distortion at high temperatures.
• Advanced fluid sealing system protects against fluid leakage and reduces heat conduction.
• Materials engineered to equalize thermal growth and forestall distortion.

Operating Parameters

• Flows to 13 600 m³/h (60 000 gpm)
• Heads to 530 m (1740 ft)
• Pressures to 100 bar (1450 psi)
• Temperatures to 600°C (1100°F)
• Settings to 20 m (65 ft)

Five-Mitered Elbow Discharge Head is designed to accept continuous system reaction forces and reduce friction loss.

Three-Piece, Rigid Adjustable Motor Coupling provides a convenient means of maintaining optimum impeller clearance.

Outer Flanged Column utilizes precision rabbet fits to ensure proper alignment of each section and is fabricated to meet customer materials requirements.

Inner Column (Enclosing Tube) is internally pressurized to lubricate bearings and prevent shaft and bearing damage during operation.

Semi-Open Impeller and Shroud Design offer easily renewable clearances for optimum efficiency. Dynamic balancing of the finish machined impeller ensures low vibration levels.

Operating Parameters

• Flows to 181 700 m³/h (800 000 gpm)
• Heads to 110 m (350 ft)
• Sizes from 1200 mm (48 in) to 3380 mm (133 in)

VTP pumps are available in a wide variety of configurations, constructions and materials to suit application requirements. Among the options are:

• Open or enclosed lineshaft construction
• Enclosed or semi-open impellers, keyed or collet mounted
• Bowl and enclosed impeller wear rings
• Cast iron or fabricated steel discharge heads
• Sealing configurations for open lineshaft construction
  • Packed box with flexible graphite packing
  • Single or dual mechanical seal
• Sealing configurations for enclosed lineshaft construction
  • Enclosing tube tension assembly for oil lubrication
  • Water injection packing assembly
• Above ground or below ground discharge flanges
• Multiple drivers
  • Electric motors, solid or hollow shaft
  • Engines with right angle gear drives
  • Steam turbines
• Separate axial thrust bearing assembly
• Standard and ISO 13709/API 610 (VS1), latest edition configurations

Operating Parameters

• Flows to 13 600 m³/h (60 000 gpm)
• Heads to 700 m (2300 ft)
• Pressures to 100 bar (1450 psi)
• Temperatures from -45°C (-50°F)    to 300°C (570°F)
• Sizes from 150 mm (6 in) to 1375 mm (55 in)
• Settings to 365 m (1200 ft)

Features and Benefits

• Fabricated from ASTM A-519 Gr. 4140 steel tubing in 6-meter (20-foot) sections
• Hot process expansion maintains wall thickness of tube through the female threaded end and reduces stress in the area of thread engagement
• API 5 CT 6-5/8″ Extreme-Line threads
• Heat treated for maximum strength
• Swaged female ends to maintain thickness throughout

Specifications

• 7-inch OD x 3/4–inch wall thickness
• Heat treated to Rc 29-37
• Multiple end attachment options for both rotary joint and cutting tool
  • Compact flange
  • 3000 lb and 5000 lb unibolt couplings with integral threads
  • 1500 lb RTJ, 2500 lb RTJ and 2500 lb flange connections

Features and Benefits

The AutoShift combination decoking tool provides numerous benefits to hydraulic decoking operations:

• Improved Operator Safety – Remote operation eliminates operator exposure to high-pressure water, steam eruptions, H₂S vapors and mechanical hazards
• Greater System Automation – Automatic shifting coupled with computerized controls and instrumentation enables total process automation
• Reduced Cycle Times – Automatic shifting within the drum saves 30 minutes or more per cycle
• Improved Efficiency – The decoked vessel returns to service more quickly and safely
• Easier Maintenance – AutoShift features a self-cleaning design that flushes coke fines from the shifting mechanism and jet ports
• Shifting Flexibility – “Stuck” tools can be freed up quickly within the drum by automatically shifting between boring and cutting modes
• Manual Shift Feature – If necessary, AutoShift can quickly and easily shift modes as with traditional combination cutting tools
• Retrofit Cartridge Assembly – Existing Flowserve (i.e., Worthington, Pacific) and non-Flowserve hydraulic decoking systems can upgrade to AutoShift technology

Features and Benefits

The decoking winch is specifically designed for use in coke cutting. It delivers large hoisting power with a high design factor and variable line speed. The fabricated steel drum and frame assembly, complete with a planetary gearbox, fail-safe wet (oil bath) disc brake, and automatic drum brake, provides safe operation in the most demanding environments. Other features include a drum lock, an oversized drum barrel to promote longer wire rope life, a remote throttle valve for variable speed and safe load control, and auxiliary brake release for precise lowering control. To assist in achieving consistent wire rope spooling and longer wire rope life, the following accessories are included:

• Spiral grooved drums
• Press rollers
• Level winds

The winch is available in pneumatic, hydraulic or electric drive.

Features and Benefits

The Flowserve compression type tensiometer puts the load measuring device in a compressive mode rather than in tension and provides the following benefits:

• All parts are manufactured of NACE grade corrosion-resistant stainless steel at hardness levels that mitigate stress corrosion cracking
• Direct cable attachment capability eliminates the need for commercial eye bolts
• May be located at the cutting deck for easy maintenance access
• Load cell can be unloaded without disconnecting the cable, allowing the strain gage amplifier to be zero adjusted with all components in place
• Removal and replacement of tensiometer can be accomplished without disconnecting the cable
• Design is compatible with existing strain gauge amplification modules and display units

Features:

The latching mechanism must be charged electrically to disengage the interface lever from the travel rails to allow the crosshead to release.

• Electrically actuated with option for pneumatic
• 24-volt signal for latching operations
• Fail safe mode is locked
• Latch does not need to be energized to allow parking of the crosshead

Features and Benefits

The Scorpion FLS 600 replaces conventional labor intensive equipment using multiple wrenches and chains with a single unit that is both safer and easier to operate. Its compact, single-unit design increases portability and alleviates the process of getting equipment and crews in place. The FLS 600’s built-in backup removes the need for a permanent anchor and enables operation by a single individual without risk to personnel safety. Features include:

Improved safety over manual chain tongs
Easy to operate drill stem tensioner provides a powerful, versatile method for making up and breaking out drill stem sections; instantly changes from break-out to make-up mode; portable and compact design.
Built-in backup does not require permanent anchor for operations.
Adjustable spacing between arms increases flexibility.
Multiple power pack options are available, including: electric, pneumatic and hydraulic.
Chain design enables adjustments compatible with all Flowserve drill stems.

Features and Benefits

Isolation valves divert the cutting fluid to the correct drum scheduled for decoking while bleed valves relieve pressure on the closed drums. Valve material is specially optimized for long service life in decoking operations. ANSI 2500 RTJ flanges are standard with higher pressure ratings available.

Limitorque actuators with limit switches operate the valves and provide automatic control. A manual override is provided for operation in the event of a power failure. The valves include locking pins for safe position security during maintenance.

Features:

Area-rated video cameras placed on the cutting deck give the operator a view of the top of the coked drum. Cameras also monitor the chute to provide feedback on drum cleaning while others provide a view of cutting operations from across the coke pit. All cameras have full tilt and pan capability and deliver video signal to remote cutting location on two or more monitors.

Features and Benefits

• Two flange sizes – The rotary joint is available with 125 mm (5 in) 250 PN (1500 lb) or 400 PN (2500 lb) inlet flanges and with optional 150 mm (6 in) Unibolt^® or compact flange connections to match the drill stem connector
• Cast single-piece gooseneck eliminates welds and reduces corrosion
• Rotary joint drive options –
  • Air piston motor
  • Hydraulic
  • E-motor (with VFD)
• Dual Seal
  • Increased reliability with a four-year design life
  • Switching from the primary seal to the secondary seal allows for planned maintenance in the event of a seal failure
  • Simple installation reduces downtime
  • Retrofit option for all Flowserve rotary joints
• Rotary joint upgrade options
  • Convert packing to seal rings
  • Convert vertical air motor to horizontal motor with right angle gear
  • Upgrade Unibolt coupling to direct connect with drill stem
  • Add second bearing for right angle drive shaft
  • Convert to integral gooseneck and support cage
  • Add rotary joint stiffeners

Operating Parameters

Two models available:

• Pressures to
  • 205 bar (3000 psi)
  • 430 bar (6230 psi)
• Speeds of 2 to 17 rpm
• Rotates 30 m (100 ft) to 45 m (140 ft) drill stem lengths
• Carries axial hydraulic loads in the magnitude of 190 000 J (140 000 ft-lb) through its main thrust bearing
• Seals hydraulic pressure against atmosphere

^®Unibolt is a registered trademark of Cameron International Corporation

Features and Benefits

• Fully enclosed 9.5 mm (0.375 inch) thick carbon steel shroud
• Open top allows steam and gas to escape in event of a hot spot blowout
• Can be installed without field welding and without unit shutdown
• Self-aligning, accommodating up to 305 mm (12 inches) of lateral misalignment
• Auto-latching / unlatching feature available; actuation by lowering and raising of drill stem is available
• Loosely mounted on drill stem to permit insertion of the cutting tool into the drum

Features and Benefits

Flowserve coke drum monitoring systems provide information that allows the operator to advance the cutting tool at the earliest opportunity, reducing the total time needed to clean the drum. System features and benefits include:

• Permanently mounted vibration sensors – five on the barrel and one on the chute – provide a high signal-to-noise ratio to provide more accurate readouts
• Integrated IPS APEX™ module processes vibration signals and provides clear visualization of coke removal status
• Complete integration with the decoking control system enables full automation of the cutting process
• Operator display indicates:
  1. Drum cleanliness
  2. Cutting tool position
  3. Control valve position
  4. Drum selection
  5. Diagnostic information

Decoking Systems Features and Benefits

The basic control system includes a master control panel located near the pump train, a cutting deck panel for each pair of drums, and upper and lower proximity switches to monitor crosshead travel and tool position inside the drums. The system designs meet international standards and unique end-user requirements.

The system provides:

• Monitoring of the pump train and lube oil system with permissive starts, vibration and temperature alarms and shutdowns
• Safety interlocks for the drill stem, decoking valve and isolation valves
• Disabling of the hoist at safe high and low in-drum positions when cutting is in progress
• Display of cutting tool elevation and drill stem position
• Hoist cable tension with under and over tension set points that disable hoist movement
• Discharge pressure of the pump
• Speed indication of the rotary joint

Various options are available for improved system operations, including:

• Remote panels for the programmable controller and the condition monitoring system
• Triple modular redundant processors
• DCS communication
• Flowserve IPS APEX™ drum monitoring to assure complete cutting
• Remote and automated cutting capabilities

With a tapered, oversized bore and integral flow modifiers, the SealSentry CRC seal chamber protects seal faces and components from solids, vapor and excessive heat.

Flow modifiers redirect flow from circumferential to axial.

Balanced flow with low pressure drop in the chamber helps keep solids in suspension, minimizing erosion.

The mechanical seal creates centrifuging action away from its parts.

Solids and slurry merge into the returning flow path and are flushed from the seal chamber.

Increase reliability and lower costs

• Reduce or eliminate the need for costly seal support systems
• Use less expensive seals and flush plans
• Improve mechanical seal performance, reliability and life
• Handle higher solids levels

Dynamically Balanced Impeller limits vibration and assures smooth operation over wide flow range.  It offers a positively locked, anti-rotation impeller nut with threads unexposed to pumped fluid.

Pump Casing and Cover feature metal-to-metal fit with fully confined, controlled compression gasket to ensure proper sealing and alignment.

Motor Support head machined to accept NEMA P-Base and IEC motor designs.

Operating Parameters

• Flows to 500 m³/h (2200 gpm)
• Heads to 275 m (900 ft)
• Pressures to 40 bar (580 psi)
• Temperatures from -100°C (-148°F) to 250°C (480°F)

Suction and Discharge Nozzles are integrally cast with the lower casing, allowing disassembly and inspection of the rotating assembly without disturbing the piping.

Double or Staggered Single Volute Design balances radial loads on the shaft, minimizing shaft deflection.

Near-centerline Mounting of casing feet ensures optimal alignment and performance when operating at elevated temperatures.

Long-radius Crossovers minimize flow losses between stages, helping to enable high efficiencies.

Cap Nuts are arranged on the top half casing parting flange, allowing easy casing removal for rotor inspection and maintenance.

Replaceable Casing and Impeller Wear Rings control interstage leakage and provide hydraulic stability.

Operating Parameters

• Flows to 4300 m³/h (18 800 gpm)
• Heads to 2130 m (6000 ft)
• Pressures to 230 bar (3335 psi)
• Temperatures to 200°C (400°F)

Suction Box Design provides shockless impeller entry and optimized NPSHR.

Dynamically Balanced Impeller limits vibration and ensures smooth operation over wide flow range.  A smooth, investment cast surface provides excellent hydraulic efficiency.

Pump Casing and Cover feature metal-to-metal fit with fully confined, controlled compression gasket to ensure proper sealing and alignment.

Performance Tuning capabilities include field hydraulic customization.

Operating Parameters

• Flows to 500 m³/h (2200 gpm)
• Heads to 275 m (900 ft)
• Pressures to 40 bar (600 psi)
• Temperatures from -100°C (-148°F) to 250°C (480°F)

Features and Benefits

The drill stem lift mechanism uses a four-part reeving system of high-strength cable and pulley blocks and sheaves. Both hanging block type pulleys and overhead supported sheaves can be provided. Attachment of blocks to the crosshead and tower structure is achieved through the use of hanger plates which are custom designed for individual applications.

The guide sheave or the crown sheave is available with an adaptation for the system to indicate “in-drum” tool position. This system is compromised of a NEMA 7 box, a local indicator mounted on the hoist console, special probes and drilling on the guide sheave.

Multi-volute Design provides perfect balance of radial reactive forces for smooth performance.

Enclosed, Mixed Flow Impeller is designed with a minimum number of vanes and wide passageways to minimize clogging. Vane tips are rounded to prevent the accumulation of stringy materials at the impeller eye.

Smallest model passes spherical solids up to 76 mm (3 in) diameter; larger models pass spherical solids up to 152 mm (6 in) diameter.

Splitter Vanes guide solids and stringy materials around the pump’s enclosing tube and into the discharge without clogging.

Enclosed Lineshaft  protects bearing surfaces from abrasives.

Available Vortex Suppressor ensures maximum hydraulic efficiency.

Operating Parameters

• Flows to 17 000 m³/h (75 000 gpm)
• Heads to 40 m (130 ft)
• Sizes 250 mm (10 in) to 1200 mm (48 in)
• Drivers to 95 kW (1250 hp)

Features and Benefits

Flowserve decoking hoses are manufactured to specification with ANSI RTJ flanges in various sizes and pressure ratings at each end. The flanges are butt-welded to built-in steel couplings that are permanently bonded to the hose. A swivel flange is provided to enable easier installation of the hose by allowing the hose to freely rotate without disengaging the RTJ flange bolting.

The hoses are built to API 7K specifications. Factory certified visual and hydrostatic test reports with supporting graphs are furnished with each hose.

Double Volute, Axially Split Casing Design minimizes hydraulic radial forces in any condition down to the minimum flow.

Suction and Discharge Nozzles are integrally cast in the lower casing half to permit pump disassembly without disturbing the piping.

Near Centerline Mounting provides superior pump alignment and performance at elevated temperatures.

Double Suction Impeller provides hydraulic axial balance and allows minimal NPSHr.

ISO 21049/API 682 Seal Chambers ensure ample flow around the seal faces and accommodate numerous seal designs.

Heavy-Duty Shaft Design ensures trouble-free operation below the first critical speed.

Standard Renewable Casing and Impeller Wear Rings provide hydraulic stability and high operating efficiency.

Operating Parameters

• Flows to 12 000 m³/h (52 835 gpm)
• Heads to 565 m (1854 ft)
• Pressures to 150 bar (2175 psi)
• Temperatures to 200°C (400°F)
• Speeds to 6000 rpm

Hydraulics Are Custom Tuned for the actual duty point by project-specific design of multi-channel diffuser.

Diffuser Tuning Maximizes Pump Efficiency, widens operational flow window, and minimizes radial loads at any flow.

Hastelloy C-276 Containment Shell hydrotested to 60 bar (900 psi).

Features:

• Product lubricated silicon carbide bearings
• Replaceable diffusers for future and different head flow duty
• Other configurations
  • Top suction nozzle to reduce space requirements
  • PHL (standard sealed)

Operating Parameters

• Pressures to 40 bar (600 psi)
• Temperatures to 200°C (400°F)
• Up to 110 kW (145 hp) motor size at 3000 rpm
• Up to 132 kW (175 hp) motor size at 3600 rpm

Thick Wall Concentric Casing With Tangential Discharge is radially balanced and is free of cavities and obstructions that cause wear.

Balancing Counter Vanes Hydraulic Sealing limits internal recirculation and reduces seal chamber pressure. Mechanical seals with radial faces optional.

Rigid, One-Piece Bearing Frame is generously sized to handle belt loads and can be removed easily for maintenance. Allows ample access to seal chamber.

Two Angular Contact Outboard Bearings and a single inboard roller bearing mitigate axial and radial thrust.

Multiple impeller types and pump configurations are available to meet application and installation requirements.

Operating Parameters
• Flows to 8000 m³/h (35 200 gpm)
• Heads to 90 m (300 ft)
• Pressures to 25 bar (360 psi)
• Temperatures to 140°C (285°F)
• Specific gravities to 1.7

Two-Vane, Semi-Open, Solids Handling Impeller has integral back pump-out vanes and is fully balanced.  Impeller is threaded to shaft and spigotted for positive location.

External Impeller Adjustment via four adjustable bushings allows clearances to be accurately reset, thereby restoring performance.

Heavy-Duty Volute Casing designed for rugged, long-life service.

Abrasion-Resistant Mechanical Seal prevents contaminants from entering the seal chamber.  Large oil-filled chamber for long seal life.

Operating Parameters

• Flows to 600 m³/h (2650 gpm)
• Heads to 35 m (115 ft)
• Temperatures to 75°C (165°F)
• Working pressures to 5 bar (72 psi)
• Sizes 50 to 200 mm (2 to 8 in)
• Solids to 75 mm (3 in) diameter

High Efficiency Impeller is one piece design with no exposed threads. Mixed flow vane design is highly efficient at hydraulic conditions found in recirculation services. Multiple materials choices permit maximum wear life in corrosive and erosive environments.

Replaceable Casing Wear Ring extends casing life and is available in many corrosion and abrasion resistant materials.

Opposed Tapered Roller Bearings firmly support the shaft, virtually eliminate axial and radial thrust loads, and are designed for a minimum B10 life of 100 000 hours.

MNR’s Radially Split Casing provides access to the impeller. Tangential discharge provides unobstructed flow path and extends wear life.

MNR’s Removable One Piece Elastomeric Liner protects against wear and allows for both front and back pullout.

Features:

• Product flush slurry seal
• External end clearance adjustment
• Front and back pullout
• Optional vertical configuration
  • Reduced shaft deflection
  • Smaller footprint
  • Reduced radial loads
  • Easy retrofits

Operating Parameters

• Flows to 17 500 m³/h (77 000 gpm)
• Heads to 40 m (130 ft)
• Sizes 600 mm (24 in) to 1000 mm (40 in)

Double-Suction Design provides balanced hydraulic loads by channeling incoming flow to the screw inlets at each end of the pump.

External Bearings and AGMA 11 Timing Gears are in separate oil reservoirs to eliminate exposure to the pumped fluid.

Versatile ISO 21049/API 682 Seal Chamber readily accommodates multiple seal types and meets HSE regulations without modification.

Split Bearing Bracket Construction facilitates easy maintenance of individual bearings and mechanical seals.

Modular Non-Welded Casing is available in multiple standard and specialty alloys.

Nozzles integral to the outer casing insulate the inner casing from piping loads, helping to maintain a non-contacting shaft design.

Operating Parameters

• Flows to 1990 m³/h (8750 gpm)
• Pressure to 50 bar (720 psi)
• Temperatures to 450°C (850°F)
• Viscosities to 8000 cp
• Gas volume fractions from 0% to 100%
• Shaft tip speeds to 30 m/s (100 ft/s)

Suction and Discharge connections meet AREVA piping requirements.

Outer Casing is designed for full working pressure and meets all pressure boundary requirements for pump equipment.

Inner Assembly has an internal crossover that reduces hydraulic thrust and increases bearing life.

Standard Cartridge Seal reduces maintenance time and man-rem exposure associated with change out.

Optional Bearing Housing mounted in the motor stand permits the use of standard electric motors without thrust bearings.

Four-piece spacer coupling allows maintenance to bearings and mechanical seal without removal of the electric motor.

Nuclear Power Plant Pumps Operating Parameters

• Flows to 60 m³/h (265 gpm)
• Heads to 2000 m (6560 ft)
• Pressures to 235 bar (3410 psi)
• Temperatures to 100°C (212°F)
• Speeds to 3600 rpm

Three- or Four-Vane Axial Flow Propeller is hydraulically balanced via pressure equalizing balance holes and a top propeller hub wear ring to reduced axial down thrust.

Outer Flanged Columns are bolted together with through bolts for ease in assembly. Alignment is maintained via centering fits on all parts.

Flared Suction Bell provides a smooth waterway entrance to the impeller and has integral splitters to reduce inlet swirl and entrance losses.

Stator Case With Integral Diffuser Vanes may be either a single-piece casting or a fabrication.

Discharge Elbow may be located above or below ground and at any outlet orientation.

Seal Chamber accepts packing or mechanical seal to suit service requirements.

Low Head High Flow Vertical Wet Pit Pump Operating Parameters

• Flows to 181 700 m³/h (800 000 gpm)
• Heads to 11 m (35 ft)
• Speeds to 1770 rpm
• Sizes 200 mm (8 in) to 3.1 m (123 in)
• Settings to 8 m (25 ft)

Variable Speed ensures consistent BEP performance.  Achieves system fluid demand without throttling for significant energy savings.  Changing operating conditions are addressed by simple speed adjustment.

Variable Frequency Drive includes all safety features.

Rigid Coupling ensures precision shaft alignment while eliminating time-consuming manual alignment.

Special Hydraulics provide efficient low specific speed hydraulics for low flows at high heads.

Impeller Sub-Shaft allows wide range of materials for wetted shaft.

Operating Parameters

• Flows to 27 m³/h (120 gpm)
• Heads to 900m (2955 ft)
• Pressures to 60 bar (870 psi)
• Maximum suction pressure to 40 bar (580 psi)
• Temperatures from -40°C (-40°F) to 350°C (660°F)
• Operating speeds from 2000 rpm to 8000 rpm

One-Piece Casing with tangential discharge offers the convenience of a back pullout design.

Precision Cast Impeller with machined shrouds and balance holes ensures high efficiency while minimizing axial thrust.

Sturdy Bearing Frame incorporates large diameter, reinforced anti-friction bearings protected by thrower and covers.

Open Seal Chamber with integral vortex-breaking ribs extends mechanical seal life.

Available configurations include end suction foot-mounted, vertical frame-mounted and vertical lineshaft.

Operational Parameters

• Flows to 3000 m³/h (13 200 gpm)
• Heads to 90 m (295 ft)
• Pressures from 4 to 16 bar (58 to 232 psi)
• Temperatures to 120°C (250°F)