Products 2018-07-15T14:47:02+08:00

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Watermech products are versatile and suited to be used across a range of industries such as palm oil milling, energy, chemical, fast movement consumer goods and industrial wastewater. Most of our products can be custom built to meet your requirements. Watermech is able to provide competitive pricing and advices on what is required. Please contact our sales team for a quote.

Backpressure Receiver

The back pressure receiver is used in the sterilisation stage of palm oil milling process by ensuring the consistency of steam supply. The back pressure receiver works by controlling the back pressure steam that returns from sterilisation process and provide redistribution control of steam for other uses, thus reducing steam losses.

Our back pressure receiver is designed to ASME code for unfired pressure vessel, tested and approved by DOSH. We are able to custom build backpressure receivers in different sizes to meet our client’s requirements.

Steam Separator

Steam separator is a device used for separating droplets from steam. Embedding cutting edge technology, Watermech’s steam separator will separate condensate from steam in the sterilisation process of palm oil milling. Wet steam contains a degree of water, and can cause extensive damage to the equipment, resulting in decreased plant productivity and affects product quality.

Our steam separator is designed to ASME code for unfired pressure vessel, tested and approved by DOSH. We are able to custom build steam separators in different sizes to meet our client’s requirements.

Belt Press

Belt press is used as a dewatering device in sludge treatment. Mechanical pressure is applied on the sludge or biosolids that have been sandwiched between two tensioned belts by passing those belts through a series of decreasing diameter rolls. The machine is divided into 3 zones:

  • Gravity zone – Free draining water is drained by gravity through a porous belt.
  • Wedge zone – Solids are prepared for pressure application.
  • Pressure zone – Medium, then high pressure is applied to the conditioned sludge.

Belt presses have been widely accepted in many industries due to their simplicity and ability to treat very high volumes of sludge.


  • Continuous and fully automatic operation.
  • Constructed with stainless steel and high grade plastics.
  • Low energy consumption and operating costs.
  • Robust and compact design.

Chemical Metering Pump

Chemical metering pumps are used to inject chemicals at precisely controlled and adjustable flow rates. For boiler water treatment applications, accurate chemical dosage is required to ensure the proper chemical treatment of the boiler feed water to help eliminate erosion, corrosion and scale buildup.

Watermech’s chemical metering pumps meet these requirements because we have the flexibility to easily vary the amount of chemical dosage rates according to process conditions.


  • Straightforward and compact construction.
  • Accuracy of up to +-1.0%.
  • Spring load packing to eliminate packing adjustment.
  • Heavy duty double ball check valves for pumping efficiency.
  • Available in either simplex or duplex units.
  • Capacity range from 0.1 litre/hour to 152 litres/hour.


  • Industrial water treatment.
  • Industrial waste treatment.
  • Industrial process chemicals.

Circular Vibrating Screen Separator

Circular vibrating screen separators is a type of screening device used for separating solids from liquids and segregating materials into various particle sizes.

The vibrating motion is generated by using weights mounted eccentrically on the upper and lower ends of the revolving shaft. These weights create vibration in the horizontal and vertical planes. The movements of these two planes will result in a rotating motion of products over the screening area.


  • Complete range of screen sizes from 24”, 36”, 48”, 60” and 67”.
  • Coil or air spring suspension.
  • Single or multiple separations.
  • Maximum flexibility and efficient separation.
  • Low maintenance.
  • Direct or indirect drive type.


  • Scalping
  • Sizing or grading
  • De-watering

Filter Press

Filter press consist of a series of individual membrane filter plates that allow slurries to flow in and filtrates to flow out. These plates have diaphragms that are inflated with water pressure. Slurries are pumped into the unit through its core where it flows into the space between the plates. A cake of materials begins to form on the plates and the filtering happens. The cake is removed when the plate pressure is relieved and the head plate retracted. The plates are then sequentially separated, causing the cakes to fall into a container to be collected.

The use of filter press delivers drier solids compared to centrifuges. Dry discharge weighs less and has less volume, which translates to lower disposal costs. There are also no moving parts during filtration, thus keeping noise levels low.


  • Most efficient for sludge dewatering.
  • Membrane squeezing process with a maximum pressure of 16 bar.
  • Option for manual or fully automated operation with Programmable Logic Controller as per client’s requirements.

Floating Mixer

Controlling how and at what depth water is brought to the mixer is the cornerstone of a successful mixing strategy. A great floating mixer will better disperse oxygen dispersal, increasing the level of aerobic activity.

Watermech’s floating mixers are designed to pull water from significant depths for aeration and mixing, then distribute from the device. During this process, the following activities are performed simultaneously:

  • Drawing from deep sludge deposits.
  • Breaking up sludge deposit solids into smaller particulates.
  • De-stratifying the water column.
  • Aerating and/or depositing solids into designated locales.


  • Energy efficient design.
  • Well designed stainless steel impeller and diffuser to facilitate the pumping of water, control water flow and ensure thorough mixing of water.
  • Pumping flow rate is 30% higher than most other mixers.
  • Diffuser is constructed with heavy duty stainless steel, with its heavy weight resulting in minimum vibration.


  • Industrial wastewater treatment.

Pressure Filter

The fluid stream contacts with the granular filter media in a pressurised vessel for physical and chemical removal. Watermech’s pressure filters are adopted in a range of conventional filtration media and applications.


  • Filtered water quality ranges from 10-30 microgram.
  • Vessel designed and fabricated to ASME code for unfired pressure vessel.
  • Various types of filter medias such as sand, anthracite, activated carbon, garnet or manganese greensand can be used depending on applications.
  • Vessel internal is sand blasted to SA 2.5 and coated with epoxy paint for corrosion protection.
  • Well-designed bottom distribution system integrated with high quality PP nozzles to uniform the flow of water distribution through the filtering layers.
  • Fully automated, semi-automated or manual configuration, depending on client’s requirements.
  • All pressure filters are custom built to meet client’s requirements.


  • Potable water
  • Boiler feed water
  • Power generation
  • Swimming pool
  • Industrial cooling water
  • Water recycled plant

Surface Aerator

Surface aerator is used in wastewater treatment to increase oxygen saturation of anoxic water. The strong pumping action of the surface aerator transfers oxygen into the wastewater, thereby dispersing and mixing it with the wastewater and microbes. The process will consequently reduce the biochemical oxygen demand (BOD) in the water.


  • Energy efficient design.
  • Equipped with large diffuser to increase surface area and control the water flow in a flat, high velocity impinging spray pattern that increases oxygen transfer and mixing.
  • Smoothest curve intake, volute and discharge passage of any aerators.
  • Pumping flow rates 30% higher than most other aerators and mixers.
  • Spray is less susceptible to wind drift.
  • Diffuser is constructed with heavy duty stainless steel and fibreglass reinforced resin, whereby its heavy weight minimises vibration.

Universal Pig Launcher and Receiver

The pig launcher and receiver has the ability to perform various operations on a pipeline without stopping the flow of the product in the pipeline. These operations include but are not limited to cleaning and inspection of the pipeline. The pig is inserted into the pig launcher, which is a funnel shaped Y section in the pipeline. The pig launcher is then closed and the pressure of the product in the pipeline is used to push it along down the pipe until it reaches the receiving trap, which is the pig receiver.

Adopting a proper pigging program with the correct pig helps maintain the integrity and optimum efficiency of the pipeline. A well thought out pigging program has a twofold advantage in safeguarding both the environment and the pipeline asset. Cornerstone to the operation is pipeline cleanliness, as the build-up of solids will severely affect throughput, and also create conditions for corrosion, thus reducing the effectiveness of inhibitors.

The pig launcher and receiver eliminates the need for line flushing, which will create a more rapid and reliable product changeover. Product sampling at the receipt point becomes faster as the interface between products are clearly distinguishable, and the old method of checking at intervals until the product is on-specification is considerably shortened.


  • Launcher/receiver designed to ASME code for unfired pressure vessel, tested and approved by DOSH. Third party inspection can be provided on request.
  • Quick opening clamp-ring closure is installed for safe pig retrieving.
  • Flange mounted to launcher/receiver head for ease of maintenance and is interchangeable.
  • All pig launchers and receivers are custom built to meet client’s requirements.

Ultrafiltration (UF)

Ultrafiltration purifies water by filtering it through a membrane filter to separate out molecules present in the water. Suspended solids and solutes of high molecular weight are retained, while water and low molecular weight solutes are passed through the membrane filter. Ultrafiltration membranes are defined by the molecular weight cut-off (MWCO) of the membrane used.

Ultrafiltration is based on the simple process of size separation and does not use chemicals to purify.

Main features of ultrafiltration treatment systems:

  • Up to 150,000 Da of MWCO (molecular weight cutoff).
  • Better filtrate quality with low Silt Density Index(SDI<2).
  • Lower floor space ratio required compared to conventional water treatment system.
  • Future upgrading work can be easily carried out as per client’s requirements.
  • Straightforward, simple and effortless operation.
  • Option for full automation as per client’s requirements.
  • Provide better protection for RO system and requires less cleaning and maintenance work.
  • Modular unit is available upon request.


  • Boiler feed
  • Power generation
  • Potable water production
  • Semiconductor
  • Chemical process industry
  • USP (United States Pharmacopeial Convention) Pharmaceutical
  • Beverage and bottling industry
  • Recycling plant

Vacuum & Thermal Deaerator

Deaerators are used to pre-treat feed water into steam boilers by removing oxygen in boiler feed water. It is essential to remove dissolved gasses from boiler feedwater. The presence of oxygen in boiler feed water will corrode the internal structure of the boiler, resulting in reduced life span and boiler efficiency.

While dissolved gasses in the feedwater can be controlled or removed by the addition of chemicals, it is more economical to remove these gasses through deaerators.

We supply two types of deaerators: vaccum and thermal dearators. Thermal deaerators operate at saturated conditions either atmospheric or under pressure with steam inlet.  Vacuum deareators operate under vacuum without steam inlet.

Main features of vacuum deaerators:

  • Simple and reliable operation with no moving parts.
  • Low maintenance with minimal costs.
  • Reduce dissolved oxygen to < 0.1mg/litre.
  • Operate under vacuum condition at low temperature.
  • Specifically designed spray valves to efficiently atomise feed water.
  • Integral piping system to ensure full and part load efficiency of boiler.
  • Vessel designed and fabricated to ASME code for unfired pressure vessel.
  • Internals sand blasted to SA 2.5 and coated with epoxy paint for corrosion protection.
  • All vacuum deaerators are custom built to meet client’s requirements.


  • Boiler feed
  • Power generation

Main features of thermal deaerators:

  • Reduce dissolved oxygen to < 0.007mg/litre (conditions apply).
  • Dearated water temperature of 105C.
  • Operating pressure of 0.35 bar.
  • Developed specifically for high operating temperature.
  • Vessel designed and fabricated to ASME code for unfired pressure vessel.
  • Full stainless steel construction available for all parts in contact with steam and water.
  • Internals sand blasted to SA 2.5 and coated with epoxy paint for corrosion protection.
  • Spray valves are casted from corrosion resistant stainless steel to atomise feed water.
  • Modulating level control with low noise and vibration whilst in operation.
  • Incorporates integral vent condenser to reduce steam loss through vent.
  • Scrubbing chamber with multiple contact zones to ensure thorough mixing of steam and feed water.
  • Rapid start-up time to reach operating temperature.
  • All thermal deaerators are custom built to meet client’s requirements.


  • Boiler feed
  • Power generation, industrial process.

Vacuum Oil Dryer

Vacuum dryers remove moisture present in a substance by using vacuum pumps to create vacuum. Vacuum pumps reduce the pressure around the substance to below the vapour pressure of water.  This decreases the boiling point of water inside the substance and increases the evaporation rate. In turn, the drying rate of the substance increases.

Vacuum drying is gentler, faster and more energy efficient than conventional heat drying. This method of drying is generally used for drying substances that are hygroscopic and heat sensitive. It is also suited for drying products with large surface area.


  • Capacity range from 4-20 tons/hr.
  • Reduce moisture content to less than 0.1%.
  • Operate under vacuum of 150 mbar (abs).
  • Vessel designed and fabricated to ASME code for unfired pressure vessel.
  • Mild steel or full stainless steel construction as per client’s requirement.
  • Internal fitted with stainless steel spray nozzles and splash trays.
  • Option for automated with level switch control or manual operation with float valve.
  • All vacuum dryers are custom built to meet client’s requirement.


  • Clarification station

Water Softener

Water softeners are used as a pre-treatment equipment for boiler feed water. Boiler feed water contains mineral rich “hard water” that scales up the boiler’s internal components, reducing the efficiency of heat exchange, and eventually corroding the boiler.

Water softening systems introduces soluble sodium compounds into the water system to eliminate hard water and internal scale build up. Water softeners increases flow rates and reduces the cost of chemical treatments to keep boilers clean.

Main features of water softeners:

  • Total water hardness of 1.0mg/litre and below.
  • Vessel designed and fabricated to ASME code for unfired pressure vessel.
  • Reproducible quality ion exchange resin.
  • Internals are sandblasted to SA 2.5 and coated with epoxy paint for corrosion protection.
  • Well-designed bottom distribution system integrated with high quality PP nozzles to uniform the flow of water distribution through the resin bed.
  • Brine solution is injected through high performance water eductor for effective resin regeneration.
  • Fully automated, semi-automated or manual operating process depending on client’s requirements.
  • All water softeners are custom built to meet client’s requirements.


  • Industrial water
  • Boiler feed water
  • Power generation
  • RP pre-treatment