Gerab supplies pumps to various types and standards to suit the oil, power and process industries

Gerab has a tie up with DALIAN DEEP BLUE PUMP, One of the leading pumps manufacturers in China, the recognized top Chinese industrial centrifugal pumps manufacturer, especially for API610 pumps, one of three Chinese nuclear power station pumps manufacturers approved by the China National Nuclear Security Administration.

Deep Blue Pump does the whole complete production process from R&D and engineering, melting and casting, to machining and fabrication, to assembly, to testing and inspection, to supply after-market products, repair, and diagnostic services.

EAP-I series is horizontal, radial split, single stage, single suction overhung centrifugal pump with volute casing. Double volute casing structure with outlet diameter ≧ 80mm can well balance the radial force and ensure the shaft deflection at the shaft seal. The pump is centerline-mounted which is suitable for high temperature mediums. A balance hole and seal ring combination is applied to balance the axial force over the service life of the bearing. Pump casing, cover, and impeller are provided with sealing rings. The interference fit of the sealing rings is fixed with screws. Available for working conditions with granular impurities without compromise to the service life of pump casing, cover, and impeller.

  • Capacity 2~2600m3/h
  • Head ~300m
  • Design Pressure ~5.0MPa
  • Temperature -80~+450℃
  • Speed 2980r/min 1475r/min
  • Power ~1120KW

EAP-K series is horizontal, radial split, single stage, overhung centrifugal pump with volute casing. The pump is a centerline-mounted, double casing structure, with outlet diameter ≧ 80mm; Open impeller. The pump casing and cover are provided with front and rear wear-resistant plates. The bearing component is provided with a bearing box structure to adjust the axial momentum of the rotor. Rigid shaft design ensures the rotor could be running smoothly. Back blade balances the axial force to ensure the service life of the bearing. The radial bearings are cylindrical roller bearings, and the thrust bearings are angular contact ball bearings, and can properly bear axial forces from two directions.

  • Capacity 2~2600m3/h
  • Head ~280m
  • Design Pressure ~5.0MPa
  • Temperature -80~+450℃
  • Speed 2980r/min 1475r/min
  • Power ~1120KW

EAP-G series is horizontal, radial split, single stage, single suction overhung centrifugal pump with volute casing. Double casing structure with outlet diameter ≧ 80mm can well balance the radial force and ensure the shaft deflection at the shaft seal. The pump is centerline-mounted which is suitable for any temperature medium. Inlet and outlet flange is arranged on the pump casing to easily inspect and maintain the pump without moving the suction and discharge pipelines. With no-balanced hole structure, the shaft head force generated by the high pressure at the pump inlet can offset with the impeller cover force, and the residual axial force is borne by the tapered roller bearing. Throat bushing is designed with labyrinth groove or effect thread groove structure that can effectively cut off high temperature heat source and control the pressure of the sealing chamber.

  • Capacity 2~1500m3/h
  • Head ~280m
  • Design Pressure ~10.0MPa
  • Temperature -80~+450℃
  • Speed 2980r/min 1475r/min
  • Power ~1120KW

ANS-B series is horizontal, radial split, single stage, single suction, overhung centrifugal pump with volute casing, foot mounted. The impeller is designed as fully open structure with back blade, which is suitable for liquids that abrasion, containing large particles or strip fibers. Rigid shaft design, impeller and shaft are connected by thread, no impeller nut. The bearing component is provided with a bearing box structure, the connecting-bolts plus jacking-bolts design for the bearing housing and bearing box, so that the clearance between the impeller and the casing can be easily adjusted without disassembling the pump, to ensure the pump could be running within the high efficiency range , the adjusting action is easy and reliable , the maintenance is simple . The radial bearings are deep groove ball bearings and the thrust bearings are angular contact ball bearings, which can properly bear axial forces from two directions.

  • Capacity 2~1250m3/h
  • Head ~145m
  • Design Pressure ~2.5Mpa
  • Temperature -40~+200℃
  • Speed 2980r/min 1475r/min
  • Power ~160KW

EDS series is horizontal, axially split,double suction, single stage or two stages, between-bearings,Centerline-mounted or foot-mounted centrifugal pump. Double volute structure reduces the radial force effectively. Axial split structure can realize the rapid disassembly rotor and parts maintenance.without disassembling the pipeline and the pipeline related system, Single-stage double-suction or two-stage double-suction + single-stage structure impeller ,high cavitation resistance, high efficiency and stability.Self-balancing axial force, no complex balance disc, balance drum and other balance mechanisms. EDS series pump is new generation of high efficiency energy-saving products with three-dimension model and CFD flow field analysis, wide range of flow and head, high efficiency, good cavitation-resistanceretc.

  • Capacity 100~12000m3/h
  • Head ~440m
  • Design Pressure Single stage:2.5~10.0Mpa
    Double stage :5.0~15.0Mpa
  • Temperature -40~+200℃
  • Speed Single stage:~2980r/min 1475r/min 980r/min 735r/min
    Double stage :~2980r/min 1475r/min
  • Power ~3150KW

HDD series is horizontal,radial split,double suction for first stage ,single or two stages, between-bearings centrifugal pump with volute casing.Centerline-mounted,Top-Suction, Top-Discharge or Side-Suction, Side-Discharge/Side-Suction, Top-Discharge according to requirements. Spiral suction chamber can obtain better flow conditions.The uniform velocity field is obtained at the impeller inlet.Double-suction impeller with better cavitation performance can reduce the installation cost of the device and balance the axial force produced by itself to the improve bearing life.Rigid shaft design: the first order critical speed is more than 1.2 times of the designed speed to ensure the smooth operation of the pump.

  • Capacity 50~6300m3/h
  • Head ~700m
  • Design Pressure ~15.0MPa
  • Temperature -80~+450℃
  • Speed 2980r/min 1475r/min
  • Power ~2800KW

SCSK series is horizontal, single-casing,axial split,centerline-mounted,multistage pump with symmetrically arranged impellers . Inlet and outlet flange is arranged on the pump casing to easily realize the detection and maintenance of the pump without moving the suction and discharge pipelines.The impeller is arranged back to back in a symmetrical way, and the residual axial force is small. The axial force is balanced by adjusting the size of the throttle bushing and other parts.The complex balance devices aren’t needed, The inner hole of each shaft sleeve is provided with spiral groove, and the axial dimension of the shaft sleeve is short,especially good for transfer the liquid which contains particles.The static friction pair is designed in a separate structure, which is more convenient and fast to replace, and the rotor parts do not need to be disassembled and installed again after dynamic balance.

  • Capacity 20~1680m3/h
  • Head ~1850m
  • Design Pressure ~5MPa~15MPa
  • Temperature -80~+200℃
  • Speed 2980r/min
  • Power ~3150KW

SCS series is horizontal,radial split,multistage ,ring-section pump. Radial diffuser type casing structure, wherer centre line- or foot-mounted is available based on operating temperature. Flexible arrangements of suction & discharge satisfy sorts of installation.This series is simple structure & reliable structure, higher stability,longer service life and easy maintenance. Series arrangement impellers. Double balancing drum to balance the axial force, Flexible design in dry state while rigid design in wet state of the rotor ensure the stable and reliable operation.First-stage impeller and second-stage impeller are different design,first-stage impeller has high anti-cavitation performance while second-stage impeller could offer high efficiency. Impellers are designed as sliding structure, which is easy to install and disassemble.

  • Capacity 3~250m3/h
  • Head ~1200m
  • Design Pressure ~11.0MPa
  • Temperature -30~+180℃
  • Speed 2980r/min
  • Power ~1500KW

SCS-Z series is horizontal, single-casing, radial split,, ring-section ,symmetrical arrangement impellers,multistage pump. Centerline-mounted or foot-mounted .The impellers are arranged back to back,Axial force self-balancing. Flexible design in dry state while rigid design in wet state of the rotor ensure the stable and reliable operation. First-stage impeller and second-stage impeller are different design,first-stage impeller is based on high cavitation-resistance

  • Capacity 5~900m3/h
  • Head ~1600m
  • Design Pressure ~20.0Mpa
  • Temperature -80~+210℃
  • Speed 2980r/min
  • Power ~2500KW

SCS-G series is horizontal, single-casing, radial split,ring-section ,multistage pump with series arrangement impellers .Advanced hydraulic design methods such as CFD 3D flow field analysis ensure the pump high efficiency and good cavitation performance.Single or double balancing drum structure is applied to balance the axial force, to ensure the stable and reliable operation. The first stage impeller is the low cavitation design.Self-lubricating bearings or forced lubricating bearings could be applied for different power, speed and other service requirement

  • Capacity 5~1200m3/h
  • Head ~2000m
  • Design Pressure ~26.0Mpa
  • Temperature -40~+180℃
  • Speed 2980r/min
  • Power ~8000KW

DCS-Z series is horizontal, double-casing,radial split, symmetrical arrangement impellers ,multistage pump. The pump is centerline-mounted, heavy duty design, good thermal stability, properly satisfy the nozzle load requirements that specified by API610. Double casing structure secure the high safety and reliability; The inner casing is integrally pull-out design, of which the pump could be easily installed and simply maintained. The impellers are arranged by back to back without the traditional balance device to ensure the stable and reliable operation. The first stage impeller is the low cavitation design.Self-lubricating bearings or forced lubricating bearings could be applied for different power, speed and other service requirement.

  • Capacity 5~900m3/h
  • Head ~4000m
  • Design Pressure ~45.0Mpa
  • Temperature -80~+450℃
  • Speed 6000r/min
  • Power ~12000KW

DCS-K serial is double casing horizontal split , horizontal multistage centrifugal pump,which are designed for extreme conditions such as high temperature, high pressure, etc. The pump is centerline-mounted, heavy duty design, good thermal stability, properly satisfy the nozzle load requirements that specified by API610.Double casing structure secure the high safety and reliability; The inner casing is integrally pull-out design, of which the pump could be easily installed and simply maintained. The impellers are arranged by back to back without the traditional balance device to ensure the stable and reliable operation. The first stage impeller is the low cavitation design. Self-lubricating bearings or forced lubricating bearings could be applied for different power, speed and other service requirement

  • Capacity 10~2000m3/h
  • Head ~4000m
  • Design Pressure ~45.0Mpa
  • Temperature -80~+450℃
  • Speed 6000r/min
  • Power ~25000KW

DCS-G series is horizontal, double-casing, radial split,series arrangement impellers , multistage pump. The pump is centerline-mounted, heavy duty design, good thermal stability, properly satisfy the nozzle load requirements that specified by API610. Double casing structure secure the high safety and reliability; The inner casing is integrally pull-out design, of which the pump could be easily installed and simply maintained. Single or double balancing drum structure is applied to balance the axial force, to ensure the stable and reliable operation. The first stage impeller is the low cavitation design.Self-lubricating bearings or forced lubricating bearings could be applied for different power, speed and other service requirement

  • Capacity 5~1350m3/h
  • Head ~3800m
  • Design Pressure ~42.0Mpa
  • Temperature -80~+450℃
  • Speed ~6000r/min
  • Power ~20000KW

LYA-I series is vertical,single stage,single suction,radial split,long shaft submerged pump with volute casing. Independent side discharge pipe, hydraulic loss less, high efficiency.Balancing chamber & pipe can decrease pressure and axial force, reducing the possibility of particle entering sliding bearing to avoid wearing the plain bearing and reducing the service life of the pump.Axial force can be balanced by back blade of impeller, as well as residual axial force balanced by a pair of angular contact ball bearing. According to different pump length, both integral shaft and Spindle shaft are available for pump shaft structure. To meet different client’s request, various types of seal, such as gland seal, packing, screw seal, mechanical seal, can be fitted. For regular fitting of ZZ series bearing group, grease lubricated and residual axial force balanced by a pair of angular contact ball bearing; if special requirements or working conditions, the ZL bearing group can be fitted, light oil lubricated.

  • Capacity 3~1100m3/h
  • Head ~135m
  • Design Pressure ~2.5Mpa
  • Temperature 60~+200℃
  • Speed ~2980r/min、1475r/min
  • Power ~132KW

LDB series is vertical,double casing, radial split, radial diffuser or bowl type multistage centrifugal pump.welding structure for Inlet and outlet section and barrel bag void defects. First-stage impeller and second-stage impeller are different design,first-stage impeller is based on high cavitation-resistance while second-stage impeller is considering pump efficiency. Impellers can be designed with diffuser to reduced insertion depth under cavitation demanding conditions. Balancing drum(LDB-B) or disk (LDB-A) design to balance the axial force.Flexible shaft is multi-points supported. Distance between supporting points apply to API610 standard.ZL series bearing group, grease lubricated and residual axial force balanced by a pair of angular contact ball bearing.

  • Capacity 15~4400m3/h
  • Head ~400m
  • Design Pressure ~11.0Mpa
  • Temperature -80~+250℃
  • Speed ~2980r/min、1475r/min
  • Power ~1500KW

LDB series is vertical,double casing, radial split, radial diffuser or bowl type multistage centrifugal pump.welding structure for Inlet and outlet section and barrel bag void defects. First-stage impeller and second-stage impeller are different design,first-stage impeller is based on high cavitation-resistance while second-stage impeller is considering pump efficiency. Impellers can be designed with diffuser to reduced insertion depth under cavitation demanding conditions. Balancing drum(LDB-B) or disk (LDB-A)design to balance the axial force.Flexible shaft is multi-points supported. Distance between supporting points apply to API610 standard.ZL series bearing group, grease lubricated and residual axial force balanced by a pair of angular contact ball bearing

  • Capacity 4~700m3/h
  • Head ~1100m
  • Design Pressure ~11.0Mpa
  • Temperature -120~+250℃
  • Speed ~2980r/min、1475r/min
  • Power ~1500KW

High pressure submersible pump is vertical multistage,radial split diffuser structure centrifugal pump installed outside the storage tank.The pump head is installed inside the suction cylinder which is installed as pit type.Flow passage component and motor is coaxial design,submerged is the medium.Minor radius balance disk & drum combination design to balance the axial force. 3-point rolling bearing support with auxiliary support provided between stages improve the stability. Without dynamic sealing, leakage point is the leakage of the medium in the pump well along the cable,0 leakage. Properly cooling by pumping medium, no explosion proof requirement,hige safety and reliability.Vibration, liquid level, temperature and pressure monitoring system are provided to ensure the safety of the pump operation.

  • Capacity 600m3/h
  • Head ~3000m
  • Design Pressure ~15Mpa
  • Temperature ~-196℃
  • Speed 3000r/min
  • Power ~2800KW

In-tank submersible pump is 3-point rolling bearing support,vertical single stage/multistage,closed type impeller,radial/axial split diffuser centrifugal pump. The pump is installed in the pump well,Connection and isolation between pump well and storage tank are realized through the opening and closing of pump control bottom valve which is installed in pump inlet.Flow passage component and motor is coaxial design, submerged in the medium. Minor radius balance disk & drum combination design to balance the axial force.The leakage point is the leakage of the medium in the pump well along the cable,without dynamic sealing, 0 leakage, properly cooling by pumping medium, no explosion proof requirement, high safety and reliability

  • Capacity 2500m3/h
  • Head ~810m
  • Design Pressure ~7.5Mpa
  • Temperature ~-196℃
  • Speed 1480r/min~3000r/min
  • Power 15KW~1000KW