Products
API 610-Compliant Foot-Mounted Overhung Process Pump | BAS-OH1 Series (KE1)
The BAS-OH1 (KE1) is a foot-mounted, single-stage, single-suction overhung centrifugal process pump, designed and manufactured in full compliance with API 610. It is also available conforming to ISO 5199 and ISO 2858 standards, offering customers flexibility in procurement specifications across global project requirements.
Featuring a back pull-out design, the BAS-OH1 allows the complete rotating assembly to be removed from the casing for inspection or servicing without disconnecting any process pipework or disturbing the driver — a critical advantage in facilities where uptime and maintenance efficiency are priorities.
With a maximum capacity of 1,550 m³/hr and heads up to 225 m, the BAS-OH1 is well-suited for a wide range of general process, utility, and light industrial fluid handling duties — from water treatment and condensate extraction to edible oil processing and HVAC systems.
Key Features
- API 610 Compliant — Fully designed and manufactured to meet the API 610 standard; also available to ISO 5199 / ISO 2858 for broader project specification compatibility.
- Foot-Mounted Single-Stage Overhung Design — Compact, stable mounting configuration ideal for general process and utility service environments where space efficiency is a consideration.
- Back Pull-Out Design — The entire rotating element is removable without disturbing suction or discharge piping or the driver, enabling rapid and cost-effective maintenance.
- Maximum Parts Interchangeability — Pump family designed for maximum component commonality, reducing spare parts stockholding and simplifying long-term maintenance planning.
- Dual Sealing Options — Available with either gland packing or mechanical seal configurations to suit the fluid type, operating conditions, and site preferences.
- Wide Motor Speed Compatibility — Suitable for synchronous motor speeds from 1,000 to 3,600 rpm, offering flexibility across different driver configurations and power supply frequencies.
Applications
- Water treatment and purification plants
- HVAC and air-conditioning systems
- Edible oil, sugar, textile, and general process industries
- Condensate extraction and distillery operations
Specifications
| Parameter | Specification |
|---|---|
| Model | BAS OH1 (KE1) |
| Max Flow Capacity | Up to 1,550 m³ per hr |
| Max Head | Up to 225 m |
| Operating Temperature Range | Minus 50°C to plus 350°C |
| Max Discharge Pressure | Up to Class 300 |
| Max Suction Pressure | Up to 20 kg per cm² g |
| Nozzle Orientation | End Top |
| Synchronous Motor Speeds | 1,000 / 1,200 / 1,500 / 1,800 / 3,000 / 3,600 rpm |
| Maximum Operating Speed | 3,600 rpm |
| Shaft Rotation | Clockwise, viewed from coupling end |
| Flange Ratings | Class 150 / 300 |
API 610-Compliant Process Pump | BAS-OH2 Series (UCW)
The BAS-OH2 is a single-stage, centerline-supported overhung process pump fully designed and manufactured in compliance with API 610. Its heavy-duty construction ensures consistent reliability and hydraulic efficiency across a broad spectrum of demanding operating conditions, from sub-zero cryogenic services to high-temperature process streams.
A defining feature of the BAS-OH2 is its back pull-out design, which allows the complete rotating assembly to be removed and serviced without disturbing the suction and discharge piping or the driver, significantly reducing maintenance downtime on critical process lines.
With a capacity of up to 1,920 m³/hr and heads reaching 380 m, the BAS-OH2 is purpose-built for high-volume, high-reliability fluid transfer in refinery and petrochemical environments.
Key Features
API 610 Compliant — Fully designed and manufactured to meet the internationally recognized API 610 standard for centrifugal pumps in petroleum, petrochemical, and natural gas industries.
- Centerline-Supported Casing — Heavy-duty centerline mounting minimizes thermal growth distortion, ensuring shaft alignment integrity under elevated operating temperatures.
- Back Pull-Out Design — The complete rotating element can be extracted for inspection or overhaul without disconnecting process piping or the driver, enabling faster turnaround during maintenance windows.
- Maximum Parts Interchangeability — Engineered across the pump family for component commonality, reducing spare parts complexity and long-term operational costs.
- Optional Enhancements Available — Steam-jacketed casing for high-viscosity or solidifying fluids; optional inducer available to improve required NPSH (NPSHR) performance.
Applications
- Process fluid handling in oil refineries and petrochemical plants
- High-temperature and high-pressure critical services in chemical and allied industries
- Wide-ranging fluid compatibility supported through extensive material of construction options and seal flushing plan configurations
Specifications
| Parameter | Specification |
|---|---|
| Model | BAS OH2 (UCW) |
| Max Flow Capacity | Up to 1,920 m³ per hr |
| Max Head | Up to 380 m |
| Operating Temperature Range | Minus 104°C to plus 450°C |
| Max Discharge Pressure | Up to Class 600 |
| Max Suction Pressure | Up to 80 kg per cm² g |
| Nozzle Orientation | End Top / Top Top |
| Synchronous Motor Speeds | 1,500 / 1,800 / 3,000 / 3,600 rpm |
| Maximum Operating Speed | 3,600 rpm |
| Shaft Rotation | Clockwise, viewed from coupling end |
| Flange Ratings | Class 150 / 300 / 600 |
API 610-Compliant Axial Split Casing Process Pump | BAS-BB1 Series (AD)
The BAS-BB1 (AD) is a single-stage, double-suction, between-bearings centrifugal pump featuring a near-centerline-supported axial split casing design, manufactured to API 610 standards. Its horizontally split casing construction offers an unmatched combination of high-volume fluid handling capability and field-level serviceability, the upper half casing can be lifted to expose and remove the entire rotor assembly without disconnecting any process piping or disturbing the driver.
With a maximum capacity of 6,240 m³/hr and heads reaching up to 460 m, the BAS-BB1 is the go-to solution for large-scale pumping applications across cooling systems, irrigation infrastructure, and petroleum product transportation networks. Higher capacity and head are achievable at elevated operating speeds for system designs that require greater output.
The double-suction impeller design inherently balances axial thrust and minimizes NPSH requirements, making the BAS-BB1 well-suited for installations with limited suction head availability.
Key Features
- API 610 Compliant — Fully designed and manufactured to meet the internationally recognized API 610 standard for centrifugal pumps in petroleum, petrochemical, and natural gas industries.
- Near-Centerline Axial Split Casing — Heavy-duty horizontally split casing design provides structural integrity and thermal stability while enabling rapid upper-half removal for rotor access.
- Top-Access Rotor Removal — The complete rotor assembly is extractable by simply lifting the upper casing half, with no need to disconnect suction or discharge piping or remove the driver — minimizing maintenance downtime significantly.
- Double Suction Impeller — Balances axial thrust loads inherently and achieves low NPSH requirements, making the pump suitable for a broad range of installation conditions.
- Minimal Coupling Spacer Disassembly — Bearings and mechanical seals are accessible after coupling spacer removal only, supporting fast routine maintenance cycles.
- Wide Speed Range — Available in synchronous motor speeds from 1,000 to 3,600 rpm to match diverse driver and system configurations.
Applications
- High-capacity fluid transfer in industrial and process facilities
- Cooling water circulation in power generation and heavy industry
- Agricultural and municipal irrigation systems
- Petroleum product pipeline boosting
Specifications
| Parameter | Specification |
|---|---|
| Model | BAS BB1 (AD) |
| Max Flow Capacity | Up to 6,240 m³ per hr |
| Max Head | Up to 460 m |
| Operating Temperature Range | Minus 100°C to plus 200°C |
| Max Discharge Pressure | Up to Class 600 |
| Max Suction Pressure | Up to 20 kg per cm² g |
| Nozzle Orientation | Side Side |
| Synchronous Motor Speeds | 1,000 / 1,200 / 1,500 / 1,800 / 3,000 / 3,600 rpm |
| Maximum Operating Speed | 3,600 rpm |
| Shaft Rotation | Clockwise, viewed from coupling end |
| Flange Ratings | Class 300 / 600 RF |
API 610-Compliant Between-Bearings Process Pump | BAS-BB2 Series (KS)
The BAS-BB2 (KS) is a single-stage, double-suction, between-bearings centrifugal process pump with a centerline-supported casing, fully designed and manufactured to API 610 standards. Its heavy-duty construction makes it the ideal choice for large-capacity, high-pressure fluid handling operations where reliability, safety, and ease of maintenance are equally critical.
Delivering heads of up to 550 m and flow rates reaching 5,500 m³/hr, the BAS-BB2 is one of the most capable process pumps in the Biotechtor product portfolio, suited for sustained operation across an exceptionally wide range of temperatures and pressures.
A standout feature of this series is its field-serviceable rotating assembly, bearings and mechanical seals on both drive and non-drive ends are fully accessible after removing only the coupling spacer, with no need to disconnect suction or discharge piping or disturb the driver.
Key Features
- API 610 Compliant — Fully designed and manufactured to meet the API 610 standard for centrifugal pumps in petroleum, petrochemical, and natural gas industries.
- Centerline-Supported Heavy-Duty Casing — Minimizes thermal distortion and maintains precision shaft alignment during sustained high-temperature operation.
- Bi-Directional Maintenance Access — Bearings and mechanical seals are serviceable from both sides of the pump, accessed simply by removing the coupling spacer — no piping disconnection required.
- Back Pull-Out Rotating Element — The entire rotating assembly can be withdrawn without disturbing the process piping or the driver, enabling rapid overhaul with minimal plant disruption.
- Maximum Parts Interchangeability — Designed across the pump family for maximum component commonality, reducing spare parts inventory and lowering total cost of ownership.
- Flexible Rotation Direction — Standard clockwise rotation from the coupling end; counter-clockwise configuration available upon request.
Applications
- High-volume fluid transfer in oil refineries and petrochemical processing facilities
- High-temperature and high-pressure critical service in chemical and allied process industries
- Wide material of construction options and seal flushing plan configurations available for broad fluid compatibility
- Hydraulic power recovery turbine service in chemical and process plants
Specifications
| Parameter | Specification |
|---|---|
| Model | BAS BB2 (KS) |
| Max Flow Capacity | Up to 5,500 m³ per hr |
| Max Head | Up to 550 m |
| Operating Temperature Range | Minus 104°C to plus 450°C |
| Max Discharge Pressure | Up to Class 600 |
| Max Suction Pressure | Up to 80 kg per cm² g |
| Nozzle Orientation | Top Top / Side Top / Side Side |
| Synchronous Motor Speeds | 1,000 / 1,200 / 1,500 / 1,800 / 3,000 / 3,600 rpm |
| Maximum Operating Speed | 3,600 rpm |
| Shaft Rotation | Clockwise, viewed from coupling end |
| Flange Ratings | Class 300 / 600 RF |
API 610-Compliant Multistage Double Casing Pump | BAS-BB5 Series (DCS / DCD)
The BAS-BB5 (DCS / DCD) is a multistage, centerline-supported, double-casing diffuser process pump manufactured in full compliance with API 610. Its robust barrel-type outer casing encapsulates an inner cartridge assembly, enabling the complete rotating element — including all internal components | to be withdrawn for inspection or overhaul without disconnecting any process piping or disturbing the driver.
Capable of reaching heads up to 2,500 m and operating at speeds up to 7,000 rpm, the BAS-BB5 is engineered for applications where pressure, temperature, and fluid composition push conventional pump technology to its limits. Higher head and capacity are achievable when the pump is operated at elevated speeds, offering additional flexibility for demanding system designs.
Key Features
- API 610 Compliant — Fully designed and manufactured to meet the API 610 standard for centrifugal pumps in petroleum, petrochemical, and natural gas industries.
- Heavy-Duty Double Casing Diffuser Design — The barrel-type outer casing provides an additional pressure boundary, offering superior containment integrity for high-pressure and high-temperature service conditions.
- Cartridge-Style Inner Assembly — The complete internal cartridge can be extracted without disturbing suction or discharge piping or the driver, enabling efficient in-field maintenance and minimizing plant downtime.
- Flexible Axial Thrust Balancing — Multiple balancing configurations available including piston and balance disc, double piston, or straight piston — selected to match specific application requirements.
- Enhanced NPSH Performance (DCD) — The double-suction first-stage impeller in the BAS-BB5 DCD variant delivers lower NPSH requirements, broadening installation flexibility.
- Maximum Parts Interchangeability — Pump family engineered for maximum component commonality across the series, reducing spare parts inventory and lifecycle costs.
- Extended Speed Capability — Operating speeds up to 7,000 rpm allow head and capacity to be scaled beyond standard ratings when application demands exceed base specifications.
Applications
- High-pressure fluid handling in oil refineries and petrochemical processing plants
- Medium-pressure (MP) and high-pressure (HP) boiler feed water service
- Light hydrocarbon and liquefied gas transfer operations
- Seawater injection in oil well and enhanced oil recovery applications
- Mine dewatering at extreme depths
- Petroleum product pipeline boosting
- Hydraulic power recovery turbine service in chemical and process plants
Specifications
| Parameter | Specification |
|---|---|
| Model | BAS BB5 DCS / DCD |
| Max Flow Capacity | Up to 750 m³ per hr |
| Max Head | Up to 2,500 m |
| Operating Temperature Range | Minus 104°C to plus 450°C |
| Max Discharge Pressure | Up to Class 2500 |
| Max Suction Pressure | Up to 80 kg per cm² g |
| Nozzle Orientation | Top Top / Side Top / Side Side |
| Synchronous Motor Speeds | 1,500 / 1,800 / 3,000 / 3,600 rpm |
| Maximum Operating Speed | 7,000 rpm |
| Shaft Rotation | Clockwise, viewed from coupling end |
| Flange Ratings | Class 300 / 600 / 900 / 1500 / 2500 |
High-Pressure Boiler Feed Water Pump | BAS-SS / BAS-SSD Series
With over 1,000 successful deployments across global industrial facilities, our BFW pump series has earned the trust of engineers and plant operators in oil refineries, petrochemical complexes, and water treatment infrastructure worldwide.
The BAS-SS / BAS-SSD Series are multistage, high-pressure Boiler Feed Water (BFW) pumps designed for extreme temperature and pressure conditions. Built on a ring section diffuser casing with centerline support architecture, these pumps deliver reliable, continuous performance where operational failure is not an option.
The BAS-SSD variant features a double-suction first-stage impeller, engineered to deliver superior NPSH3 performance — ideal for installations with challenging suction conditions.
Key Features
- Ring Section Diffuser Casing — Centerline-supported casing design ensures structural integrity under sustained high-temperature and high-pressure operating conditions.
- Maintenance-Friendly Design — Bearings and mechanical seals can be fully inspected and serviced with minimal disassembly; coupling spacer removal is all it takes.
- Enhanced Suction Performance (SSD) — Double-suction first-stage impeller in the BAS-SSD model significantly improves NPSH3 characteristics.
- High Parts Interchangeability — Pump family is engineered for maximum component commonality, reducing spare parts inventory and downtime.
- Intermediate Bleed-Off Port — Integrated bleed-off flow extraction from the intermediate casing for process flexibility.
Applications
- High-pressure boiler feed water supply systems
- Mine dewatering and high-pressure drainage operations
- High-pressure process fluid transfer in water treatment plants
- Hydraulic power recovery turbine service in water treatment facilitie
Specifications
| Parameter | Specification |
|---|---|
| Model | BAS SS / BAS SSD |
| Max Flow Capacity | Up to 650 m³ per hr |
| Max Head | Up to 2,500 m |
| Operating Temperature Range | Minus 5°C to plus 200°C |
| Max Discharge Pressure | Up to Class 2500 |
| Max Suction Pressure | Up to 17 kg per cm² g |
| Nozzle Orientation | Top to Top / Side to Top |
| Synchronous Motor Speed | 3,000 / 3,600 rpm |
| Maximum Operating Speed | 7,000 rpm |
| Shaft Rotation | Clockwise, viewed from coupling end |
| Flange Ratings | Class 300 / 600 / 900 / 1500 / 2500 RF |