Metering Pump – topline
For over 40 years, OBL has been synonymous with robust and highly accurate metering pumps. The OBL Topline Series, a cornerstone of their innovative range, represents the pinnacle of dosing technology, engineered to deliver unparalleled precision and reliability in the most demanding industrial environments.
Description
Specification
Downloads
Dosing pumps, also known as chemical injection pumps, are often the go-to solution for accurate metering and transferring of fluids and substances. Often referred to as metering pumps, they are designed to deliver a defined volume of liquid to fluid streams or vessels at precise flow rates. Its pump setting can be altered to achieve the greatest metering accuracy when dosing or chemical injection is required. A perfect solution for handling the transfer fluids in fixed doses and other high viscosity applications, metering pumps are commonly used in chemical, cosmetic, water, and other industries where the ability to control flow rate is pivotal to operations. Browse some of the metering pumps we have available below or get in touch with our team in Singapore directly to discuss how we can meet your needs.
L Series
The plunger L series pump is designed to withstand flow rates up to 5.500 lt (1.210 gph) and pressures up to 500 barg (7.252 psi) in a single-head configuration. It is supreme for use in industrial applications with gruelling processes such as catalysts dosing, high-pressure boiler feed and scale and corrosion inhibitors dosing. Manufactured to match up to the greatest standards in the metering industry, the modular design of this positive return plunger pump allows it to be used with a variety of heads to meet your dosing needs perfectly. The separate oil reservoirs ensure steady and accurate output whilst reducing the threat of oil contaminating the process liquid.
Specifications:
- Up to 500 barg or 7.252 psi of working pressure
- Flow rate from 0,2 to 5.500 l/h (0,04 to 1.210 gph)
- PVC liquid end and AISI 316
- Coated cast iron encasement and chemically resistant 316 and PVC liquid end
XL Series
The XL’s are suitable for highly demanding 24/7 industrial applications due to their robust and error-free single-block positive return hydraulic diaphragm pumps. Manufactured following the API675 and ATEX 2014/34/UE standards, these metering pumps comprised a mechanically actuated self-replenishing hydraulic system, an air purge valve, and a relief valve. With these properties used together, not only do you have a protected pump system, the entire dosing system is safeguarded against damages as a result of overpressures while affording proper chemical dosing regardless of conditions.
Specifications:
- Flow rate starting from 63 to 1500 l/h (13,8 to 330 gph)
- Up to 20 barg or 290 psi of working pressure
- Coated cast iron encasement and chemically resistant
- PVDF, PVC, HAST C liquid end, PP, and AISI 316
LX9 Series
The combination of unequalled robustness, metering accuracy and lowered footprint presents the ideal solution – the L X9 hydraulic double-diaphragm pump – for its wide variety of industrial dosing procedures in Singapore and internationally. Its multi-head design allows it to meet any dosing need. The purge valve with a built-in safety feature guarantees chemical dosing and a continuous suction lift irrelevant to working circumstances. At the same time, the positive return mechanism (lost motion) accords high reliability and durability. Finally, the L X9 pumps have a system that is able to detect a diaphragm rupture, and fulfils the API675 and ATEX 2014/34/UE standards.
Specifications:
- Flow rate starting from 0,4 to 3.730 l/h (0,1 to 820 gph))
- Up to 300 barg or 4.350 psi of working pressure
- Coated cast iron encasement and chemically resistant
- PVDF, PVC, HAST C liquid end, PP, and AISI 316
Metering Pumps in Singapore
For maximum accuracy and reliability
At Winston Engineering, we recognise the importance accuracy plays when moving substances or liquids under controlled conditions. Our team is thus dedicated to designing dosing pumps that offer the best accuracy. Setting the standard for safety and reliability, our robust systems will maximise your operations. Get more information about our metering technology and range of applications today.
FAQ
Which industries or applications require a specialised high-pressure chemical injection pump solution?
Specialised high-pressure pumps are essential for industries that need to inject chemicals into highly pressurised pipes or vessels, typically where fluid pressures exceed 100 bar.
The OBL L-Series plunger pump is the definitive high-pressure chemical injection pump solution, handling pressures up to 500 barg (7,252 psi). It is primarily used in:
- Oil & Gas: Inhibitor injection into pressurised pipelines.
- Power Generation: High-pressure boiler feed treatment.
- Petrochemical: Precise catalyst dosing in reactors. Its materials (like AISI 316 liquid ends) ensure safe handling of aggressive industrial fluids at these extreme pressures.
Where can clients in Singapore and Southeast Asia receive certified support and emergency service for their chemical injection pumps?
Winston Engineering provides comprehensive support directly from our Regional Headquarters in Singapore and through our established regional network.
Our commitment extends beyond the sale (WE Supply). We offer certified installation, commissioning, and emergency support (WE Service) across Singapore, Malaysia, and Indonesia. Having a strong local presence ensures swift technical response, rapid parts availability, and guaranteed compliance with critical safety standards (like ATEX for the XL/LX9 series) required when operating any chemical injection pump in hazardous industrial environments.
When should facility managers schedule maintenance for diaphragm-based metering pumps to prevent catastrophic failure?
While operational life is extensive, routine preventive maintenance is recommended every 8,000–12,000 running hours for diaphragm pumps, though this can vary based on chemical load and temperature.
To eliminate guesswork and reduce the risk of unexpected breakdown, the OBL LX9 hydraulic double-diaphragm pump features an advanced diaphragm rupture detection system. This predictive maintenance feature provides an immediate early warning should the primary diaphragm fail. This allows the operator to schedule maintenance before the process fluid contaminates the hydraulic oil or, more critically, before the chemical causes a safety hazard or system failure.
. How does Winston Engineering help clients select the right dosing pump to meet their exact flow, pressure, and chemical compatibility needs?
We act as a consultative partner, prioritising process requirements over product features to ensure clients get the optimal dosing pump solution.
Our selection process involves a detailed analysis of three primary criteria:
- Pressure: Matching the required discharge pressure to the capabilities of the pump technology (e.g., L-Series for high pressure, XL for lower pressure).
- Compatibility: Ensuring the pump's wetted parts (liquid end material) are chemically inert to the fluid being dosed.
- Safety & Accuracy: Recommending the hydraulic diaphragm pumps like the OBL XL and LX9 when maximum inherent safety, API compliance, and sustained high accuracy are non-negotiable.
Download Links
Our Product
UP Series Split Casing Pump
SCT Series Split Casing Pump
No results found.