Malema Excess Flow Valves are normally open, in-line safety devices that act to limit flow of liquids or gases out of a pressurized system. While they will pass normal flow rates, they will close when the flow rates exceed the preset value. This occurs in the event when a pressurized system is opened to atmosphere due to pipe rupture or hose breakage or due to wrong process operation. These valves are reset to open after the necessary repairs on the piping/hose are completed, by using either manual (external or integral bypass reset options) or auto reset means as ordered by the customer.
Malema excess flow valves protect personnel, equipments, environment and facilities in the event of catastrophic line breaks caused by earthquake, accidents, landslide, corrosion or deliberate action and reduces the risk of hazardous and explosive fluid spills and exposure. It also helps companies avoid costly cleanups and process downtime.
Malema excess flow valves are currently being used to control fluids including air, steam, nitrogen gas, oxygen gas, hydrogen gas, carbon dioxide gas, water, anhydrous ammonia, sulfuric acid, natural gas, gasoline, propane, and hydrocarbons.
Malema's customer support and application engineers are well trained and are ready to offer you the guidance when requested to select the right product to suit the application.
The M-VF Series Safety Excess Flow Valves are engineered for fast automatic shut-off in case of line, hose, or fitting failure protecting plant, personnel, and instruments. Designed for protection of systems handling corrosive, toxic, radioactive, and flammable materials; the valve will instantly detect surges in the system and stop fluid flow. The M-VF Series operates effectively with all fluids, liquids or gases.
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The M-XF excess flow valves provide instant shut off in the event of a hose break or line failure, preventing the release of hazardous or inflammable products to the area, which can result in a disastrous fire or explosion and untold damage to personnel and equipment. Most regulatory bodies require excess flow valves on hazardous fluid storage vessels and pipelines that carry them.
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Malema offers PFA and PTFE pressure relief valves that are suitable for installation on pressurized systems used in Semiconductor, Chemical and biopharmaceutical industries. They come with bubble tight seal and factory set for the relief pressure.
Malema's customer support and application engineers are well trained and are ready to offer you the guidance when requested to select the right product to suit the application.
The M-VF-F Series pressure relief valve is designed with an all-PFA molded body suitable for semiconductor, ultra-pure water and aggressive chemical applications.
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Malema’s KL Series pressure sensors are designed to meet the requirements such as contamination free wetted parts, minimum dead-volume and resistance to tough chemicals used in Semiconductor, chemical and bio-pharmaceutical industries. They are available in single port or inline flow through designs with tube connection as well as Flare or Pillar type end-connections. In addition to providing different analog outputs options, a local display version with alarm outputs is also available with KL95 model pressure sensor.
Malema's customer support and application engineers are well trained and are ready to offer you the guidance when requested to select the right product to suit the application.
Pressure Transducer for Ultra-Pure Water The KL-91 is a pressure transducer suitable for use in monitoring pressure of various high-purity fluids. The superior design provides for minimal “dead volume” which reduces the potential for contamination of the measured fluid. The KL-91 is available in two construction type: inline or insertion. The body construction meets IP-65 requiremnents and EMC resistant the level of CE.
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Pressure Transducer for all Chemistries The KL-92 is a pressure transducer suitable for use in monitoring pressure of various high-purity and corrosive/ aggressive fluids. The superior design provides for minimal “dead volume” which reduces the potential for contamination of the measured fluid / process. The KL-92 is available in two construction types: inline or insertion. The body construction meets IP-54 requirements.
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“Flow Through” Pressure Transducer w/ Onboard Display The KL95 is a “flow through” pressure transducer suitable for use in monitoring pressure of various high-purity and corrosive/aggressive fluids. The “flow through” design provides for minimal “dead volume” which reduces the potential for contamination of the measured fluid/process. The KL95 is provided with an integrally mounted local LED display and is available in two standard pressure ranges.
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Malema offers advanced flow meters for high purity, chemical, bio-medical and industrial applications for measuring flow of liquids, slurries, gases and steam. Malema pioneered by introducing all PFA and all PEEK Coriolis mass flow meters, straight tube PFA ultrasonic flow meters and PFA Paddlewheel flow meters to suit the stringent purity requirements of the industry.
The patented Malema™ Coriolis flow meters are generally immune to changes in fluid conditions such as density, viscosity or the presence of entrained gases in liquids and slurries. The unique sensor design and the advanced firmware that employs innovative signal processing algorithm ensure the most accurate flow measurement for these challenging conditions.
Malema’s ultrasonic flow meter range offers high accuracy and repeatability performance specification for measuring liquids and slurries with the help of the most advanced filtering and digital signal processing techniques used in the industry. Malema offers inline straight tube, U and Z style ultrasonic flow sensors.
As there is no single flow technology that can cover all of the application needs, Malema offers its customers the following wide choice of flow technologies to choose from. Malema's customer support and application engineers are well trained and are ready to offer you the guidance when requested to select the right product to suit the application.
The SumoFlo® CPFM-8100-series Single-Use Coriolis Mass Flow Meter from Malema Sensors® is specially designed for measuring liquids in bio-pharmaceutical and other applications that require USP Class VI, USP 661, and USP 788, Gamma-sterilizable materials. SumoFlo® meters provide Mass Flow Rate, Total Mass, and Temperature with accuracy ±1% of reading.
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The M-2700 series is an integrated flow meter in a small package. It utilizes transit-time ultrasonic technology to determine flow rate and the latest high-speed digital signal processing (DSP) technology to provide a cost effective flow measuring solution with no compromise in performance.
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The VF-8100 consists of an inline flow sensor and electronics in one package. The flow sensor is a straight-through PFA tube that uses ultrasonic sensing technology to measure the flow rate. There are no moving parts or mechanical seals. The VF-8100 is an ideal choice for use in the semiconductor industry where minimal footprint, high purity and corrosion resistant wetted parts are required.
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The CPFM-8800 Series is a family of advanced Coriolis flow meters fabricated exclusively from PFA polymeric material for measuring liquids in high-purity semiconductor, biopharm and other applications that require all-PFA wetted surfaces and provide a Mass Flow Rate, Total Mass and Temperature output with accuracy ±1% of reading.
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The M-10000 Paddlewheel flow meters are smaller, easier to install, and more accurate than ever before. Optional outputs such as 4-20 mA, 0-10 VDC, or pulse are available. In addition, M-10000 can also be used as an adjustable flow switch. These flow meters are available in both metal and plastic configurations.
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The M-1500P, a non - invasive inline ultrasonic flow meter uses state of the art signal converter with DSP technology and PFA wetted parts that are contamination free from ions or particles. They are ideally suited for semiconductor fluid flow measurement and other applications that demand high purity wetted parts and precise measurement.
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The M-2111 Series flow detector has non-contact transducers and a PFA flow tube design without dead pockets. Its advanced signal converter with DSP electronics offers unmatched flow measurement capabilities even in tough applications. The M-2111 is an ideal choice for use in the semiconductor industry where extreme cleanliness and anti-corrosiveness are required.
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The FLOMID FX is an advanced magnetic flow meter that is suitable for measuring conductive liquids with great accuracy and repeatability. With no moving parts or obstructions in the flow path, these meters are best suited for measuring flow of water, waste water, chemicals, pulp and slurries.
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The FLOMAT series flow meter is suitable for use in large diameter pipes or open channels as an economical solution for liquid metering. Applications include flow measurement of conductive liquids in water treatment, sewage treatment, acid and alkaline solutions in chemical and pharmaceutical industries.
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The COVOL oscillating piston flow meters is ideally suited for viscous fluids such as oils, waxes and polymers. The sensor is constructed in SS-316, PVC, PP and PTFE materials options. It can be easily cleaned and sterilized.
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Malema's SC250 & SM250 model metal tube variable area flow meters are suitable for gases, liquids and steam flow measurement. It uses a robust metal tube construction with an optional plastic liner to handle tough and corrosive process fluids.
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Series 6000 glass tube rotameters are designed according to VDI/VDE 3513 standards. Its clear borosilicate tapered glass tube with scales help flow reading with great accuracy and ease. End connection options such as screwed end connections, flanges and sanitary couplings make it suitable process industry requirements.
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Series 2000 glass tube variable area purge meters are available in 100mm, 150mm and 300mm tube lengths and with optional fine threaded regulating valve for precise flow measurement. They are suitable for gas and liquid flow measurement and control.
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The TM44 series turbine flow meters are used in precise measurement of clean fluid flow such as the process fluids including acids, alkali, solvents, water, CIP fluids, oil, minerals, petrochemical products, cryogenic liquids, and other liquids.
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The DP series target flow meters are suitable for liquid and gas flow measurement. Its design and robust construction makes it suitable for tough applications including the liquids containing solid particles.
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AD-15/ADI-15/ADT-15 series flow switches can be fitted with local flow indicators. AD series flow switches can be used for monitoring liquid and gas flows.
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The Flowmate series oval gear flow meters are designed for monitoring fuel consumption of combustion appliances and heaters or applications when low flow measurement is required. They are also suitable for a variety of liquid flow applications including high viscosity fluids.
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The TM44 series turbine flow meters are used in precise measurement of clean fluid flow such as the process fluids including acids, alkali, solvents, water, CIP fluids, oil, minerals, petrochemical products, cryogenic liquids, and other liquids.
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The DP series target flow meters are suitable for liquid and gas flow measurement. Its design and robust construction makes it suitable for tough applications including the liquids containing solid particles.
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AD-15/ADI-15/ADT-15 series flow switches can be fitted with local flow indicators. AD series flow switches can be used for monitoring liquid and gas flows.
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The Flowmate series oval gear flow meters are designed for monitoring fuel consumption of combustion appliances and heaters or applications when low flow measurement is required. They are also suitable for a variety of liquid flow applications including high viscosity fluids.
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Malema™ flow switches are used to determine if the flow rate is above or below a certain flow rate. This value (the set point) can be fixed or adjustable. When the set point is reached, the response can be the actuation of an electric circuit. When the flow switch is actuated, it will stay in that condition until the flow rate moves back from the set point by some amount.
Malema offers the adjustable and fixed set point flow switches in piston and paddle style working principle. They are available in a variety of flow ranges, sizes and materials. The salient feature of buying a Malema™ flow switch is that it comes with a custom calibration option to precisely suit your application.
The inline and by-pass style configurations, standard and custom fittings options offered make Malema™ flow switches a versatile flow measurement solution for various applications for gases and liquids. In addition, they are also available in explosion proof designs to install in hazardous locations.
Malema's customer support and application engineers are well trained and are ready to offer you the guidance when requested to select the right product to suit the application.
The M-100X Series is an extremely sensitive explosion-proof flow switch. It has been engineered to monitor vital sample flow parameters for instrumentation in process control and inert blanket gases. It is used as an auxiliary alarm monitor for flow meters.
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The M-50 Series low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid is positively established.
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The M-200 Series flow switches are engineered and field tested for sensing increasing and decreasing flow rates of gases or liquids. Pressure variation effects are minimal. This series features such versatility, economy, and accuracy that they can be used in virtually any application requiring fool-proof inexpensive flow detection.
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The operating principle is based on a magnetic piston which responds only to the motion of fluids within the line, not to static or system pressures. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch. This switch can be used to actuate audible or visual alarms, as well as relays, or other controls.
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The operating principle is based on a free floating magnetic piston which responds only to the motion of fluids within the line, not to static or system pressures. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch. This switch can be used to actuate audible or visual alarms, as well as relays, or other controls. The piston's movement can be seen through the PFA body.
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Fixed setting PTFE flow switch with in-line flow
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Adjustable flow switch with right-angle flow.
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Explosion proof, adjustable flow switch with right-angle flow. The M-200X Series flow switches are engineered and field tested for sensing increasing and decreasing flow rates of gases or liquids. Pressure variation effects are minimal. This series features such versatility, economy, and accuracy that they can be used in virtually any application requiring fool-proof inexpensive flow detection.
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All stainless, fixed setting flow with in-line flow switch. The M-80 Series flow switches are engineered and field tested for sensing increasing and decreasing flow rates of gases or liquids. Pressure variation effects are minimal. This series features such versatility, economy, and accuracy that they can be used in virtually any application requiring fool-proof inexpensive flow detection.
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AD-15/ADI-15/ADT-15 series flow switches can be fitted with local flow indicators. AD series flow switches can be used for monitoring liquid and gas flows.
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Fixed setting PTFE flow switch with in-line flow. The M-50T Series low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid is positively established.
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The M-50X Explosion Proof Series low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. The flow monitors operate only when fluid is positively established.
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The M-55 low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid flow is positively established.
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The M-60 Series low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid is positively established.
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The M-60X Explosion Proof Series switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system (universal mountable units are fitted with a reset spring). These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow switch operates only when fluid is positively established.
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The operating principle is based on a free floating magnetic piston which responds only to the motion of fluids within the line, not to static or system pressures. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch. This switch can be used to actuate audible or visual alarms, as well as relays, or other controls.
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The M-701 offers low cost flow monitoring with a variety of switch actuation points and low pressure drop. M-701 is designed for ease of maintanance, as the bonnet and shuttle can be removed, leaving the housing and pipe work connections intact. All wetted parts are polypropylene or stainless steel, making this switch ideal for a wide range of chemical and temperature requirements.
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The MFS-25 series of Paddle Flow Switches that are ideally suited in process applications where direction of flow and desired actuation set points are needed for control and dynamics of operations. Suitable for installation in pipes 1" to 8" and rated to 1500 psi max.
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Fixed setting PTFE flow switch with in-line flow. The M-50T Series low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid is positively established.
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The M-50X Explosion Proof Series low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. The flow monitors operate only when fluid is positively established.
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The M-55 low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid flow is positively established.
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The M-60 Series low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only when fluid is positively established.
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The M-60X Explosion Proof Series switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system (universal mountable units are fitted with a reset spring). These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow switch operates only when fluid is positively established.
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The operating principle is based on a free floating magnetic piston which responds only to the motion of fluids within the line, not to static or system pressures. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch. This switch can be used to actuate audible or visual alarms, as well as relays, or other controls.
Call for pricing
The M-701 offers low cost flow monitoring with a variety of switch actuation points and low pressure drop. M-701 is designed for ease of maintanance, as the bonnet and shuttle can be removed, leaving the housing and pipe work connections intact. All wetted parts are polypropylene or stainless steel, making this switch ideal for a wide range of chemical and temperature requirements.
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The MFS-25 series of Paddle Flow Switches that are ideally suited in process applications where direction of flow and desired actuation set points are needed for control and dynamics of operations. Suitable for installation in pipes 1" to 8" and rated to 1500 psi max.
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Malema offers advanced flow controllers using Coriolis and Ultrasonic flow measuring technologies. They are designed to suit high purity applications for controlling flow of DI water, Chemicals and Slurries. These closed loop flow controllers come in various shapes and sizes to meet the installation requirements of large semiconductor equipment manufacturers. In addition, Malema™ flow controllers can also be used as standalone controllers in chemical dosing and flow control applications.
Malema’s patented Coriolis flow sensor used in the Coriolis mass flow controller is generally immune to changes in fluid conditions such as density, viscosity or the presence of entrained gases in liquids and slurries. Thus having calibrated on DI water, they can be used on different process fluids without further adjustments/corrections for density or viscosity changes. Thanks to the unique sensor design and the advanced firmware that employs innovative signal processing and control algorithms, faster control response and accuracy are ensured.
Malema’s ultrasonic flow controllers offer high accuracy and repeatability specifications for measuring liquids and slurries with the help of the most advanced filtering and digital signal processing techniques used in the industry. The tens of thousands of these controllers currently in service worldwide shows the trust our customers have shown in this product.
Malema's customer support and application engineers are well trained and are ready to offer you the guidance when requested to select the right product to suit the application.
Featured Products
The LFC-7000 Series is a line of high-performance closed-loop flow controllers designed for use in a wide variety of high-purity liquids including DI water, harsh chemicals, and CMP polishing slurries.
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The Malema Sensors® BCV-980 is a compact, cost-effective, high-performance, pinch control valve designed for use with Single-Use flexible tubing systems in the Biotechnology and Pharmaceutical industries.
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The CMFC-5000 Integrated and Compact Coriolis Flow Controller controls liquid and Slurry flows up to 5000 grams per minute to within 1.5% accuracy of the set point, while providing a quick response time of within 2 seconds for consistent control. Mass flow measurement is fluid independent.
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The CMFC-9000 Integrated Coriolis Flow Controller controls liquid and Slurry flows up to 3000 grams per minute to within 1.0% accuracy of the set point, while providing a quick response time of within 2 seconds for consistent control. Mass flow measurement is fluid independent.
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Closed Loop Integrated Flow Controller - Single Display Version.
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Malema in association with Tecfluid, brings a complete range of level indicators; level transmitters and level switches, in float style, displacement style, vibrating fork style as well as non-contact verions such as ultrasonic and reflex radar level instruments.
They available in various materials of construction options suitable for use in both clean and corrosive environments. Some of these instruments are also suitable for solids level measurement.
Malema's customer support and application engineers are well trained and are ready to offer you the guidance when requested to select the right product to suit the application.
LD60/LD61 is a level switch based on the vibrating (tuning) fork technique. It is a robust and compact switch for the measurement of liquids and solids (only LD60).
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LU90 series transmitter is an advanced level instrument based on the transmission of ultrasonic waves to measure the level of liquid or solid in a vessel. Its non contact measurement makes it suitable for highly corrosive liquids. User friendly programming keys and local read out helps setting up and operating the instrument with ease.
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