Question 1

What thermal expansion coefficients for PTFE membranes must be taken into account for continuous operation at temperatures of 100°C or higher?

Accepted Answer

The technical basis is the architecture of the ＜b＞PTFE sandwich diaphragm＜/b＞ in combination with a ＜b＞stainless steel＜/b＞ pump head, ＜b＞e.g., 1.4404＜/b＞. The thermal logic dictates that the ＜b＞coefficients of thermal expansion for PTFE membranes＜/b＞ are significantly higher than those of the housing, which leads to axial stress in the clamping area as the temperature rises. The result is plastic deformation of the diaphragm edges and potential leakage; our project engineers at HARTON therefore validate the torque settings for the housing screws as a function of temperature to ensure the ＜b＞service life of the diaphragm＜/b＞ during high-temperature operation.

Question 2

How do membrane condition sensors affect process safety when handling toxic substances?

Accepted Answer

The design utilizes a double diaphragm with a barrier fluid or vacuum monitoring system in between. The operating mechanism ＜b＞of the membrane condition monitoring system＜/b＞ immediately detects a rupture of the primary transfer membrane, while the secondary membrane continues to seal the ＜b＞hermetic process pump＜/b＞. The result is a controlled process shutdown without any media leakage; at HARTON, we validate the response times of the sensors to guarantee ＜b＞process safety in chemical process control＜/b＞, even with highly corrosive substances.

Question 3

What factors help prevent cavitation damage in diaphragm pumps when handling viscous fluids?

Accepted Answer

One technical error is the insufficient sizing of the suction line relative to the stroke frequency. The physical cause-and-effect chain causes the local static pressure to drop below the vapor pressure during the suction phase, causing vapor bubbles to implode. The result is damage to the diaphragm surface and the ＜b＞suction valve seats＜/b＞; our technicians at HARTON therefore perform a precise ＜b＞calculation of the volumetric efficiency for positive-displacement pumps＜/b＞ to ensure NPSH reserves and ＜b＞prevent cavitation damage in diaphragm pumps＜/b＞.

Question 4

Why is controlling diaphragm pumps via PLC interfaces critical for dosing accuracy?

Accepted Answer

The technical basis is variable stroke frequency control via a frequency converter or linear drive. ＜b＞Controlling diaphragm pumps via PLC interfaces＜/b＞ allows for precise synchronization of the flow rate with process parameters such as pH. The mechanical result is exact adherence to residence times in reactors; to achieve this, HARTON project engineers integrate high-resolution ＜b＞interfaces for digital condition monitoring＜/b＞ to correct dosing deviations in the sub-percent range.

Question 5

How does preventive maintenance of positive-displacement pumps support the MTBF analysis of process-critical pumps?

Accepted Answer

Maintenance is based on periodic inspection of the valve springs and the elasticity of the ＜b＞flat diaphragm＜/b＞. ＜b＞Preventive maintenance of positive-displacement pumps＜/b＞ uses wear models to initiate replacement before fatigue failure occurs. The result is the prevention of unplanned downtime; At HARTON, we conduct a detailed ＜b＞MTBF analysis for process-critical diaphragm pumps＜/b＞, and by using ＜b＞zirconia balls＜/b＞, we increase the service life of the valves by a factor of 3 compared to standard stainless steel balls.

Question 6

What technical selection criteria apply to membrane systems for oxidative media?

Accepted Answer

The most important criterion is the chemical inertness of the parts in contact with the media, in accordance with the Technical ＜b＞Selection Criteria for Membrane Systems＜/b＞. When dealing with oxidizing agents such as nitric acid, chemical logic dictates that elastomers such as ＜b＞NBR ＜/b＞be excluded ＜b＞in favor ＜/b＞of fully fluorinated plastics. The consequence of an incorrect selection is the oxidative degradation of the membrane; our project engineers therefore create a specific resistance matrix for the ＜b＞chemical dosing pump＜/b＞ to ensure the long-term integrity of the system.

Question 7

To what extent does the use of a pulsation damper improve the service life of piping systems?

Accepted Answer

The technical basis is the oscillating operation of ＜b＞industrial diaphragm pumps＜/b＞, which induces periodic pressure surges. The mechanical operating principle of a ＜b＞pulsation damper uses ＜/b＞a gas cushion to compensate for peaks in flow rate. The result is a significant reduction in fatigue cracks in the piping supports; HARTON validates the damping rate in ＜b＞diaphragm pump systems＜/b＞ to eliminate resonance vibrations in the system.

Question 8

What certification for diaphragm pumps in ATEX zones is required for pumping solvents?

Accepted Answer

The starting point is the zone classification (e.g., 1 or 2), which requires a conductive housing and diaphragm design. The physical rationale behind ＜b＞the certification of diaphragm pumps for ATEX zones＜/b＞ is based on grounding all components to prevent ignitable sparks caused by electrostatic charging. Failure to comply poses an explosion hazard; at HARTON, we validate the electrical conductivity of ＜b＞the PTFE＜/b＞ (carbon-filled) ＜b＞compressed-air diaphragm pump＜/b＞ in accordance with applicable guidelines.

Question 9

How does HARTON validate the leak tests performed after maintenance intervals on hermetic units?

Accepted Answer

We validate integrity by ＜b＞performing leak tests at maintenance intervals＜/b＞ using the differential pressure method or a helium leak test. The mechanical design ensures that the diaphragm is securely clamped and that the O-rings on ＜b＞the pressure valve ＜/b＞fit ＜b＞perfectly ＜/b＞. A failure would result in the release of hazardous substances; our quality assurance department documents every test run as proof of safety for the ＜b＞low-maintenance diaphragm pump＜/b＞.

Question 10

Why are the specifications of diaphragm pumps a priority for industry when procuring robust units?

Accepted Answer

The most important criterion is that the flow characteristics and solids tolerance match the ＜b＞specifications for industrial diaphragm pumps＜/b＞. The mechanical design requires that ＜b＞the stroke length setting and ＜/b＞valve type be matched to the viscosity of the fluid. Incomplete ＜b＞B2B pump procurement＜/b＞ can result in inefficient operation or valve blockages; our project engineers therefore prepare detailed specifications for every ＜b＞continuous-duty diaphragm pump project＜/b＞.

Question 11

Which hermetic process pump is essential for pumping ultrapure water and vaccines?

Accepted Answer

The technical foundation is a dead-space-free design made of electropolished stainless steel. The mechanical design of a hermetically sealed process pump with a PTFE diaphragm ensures that no lubricants or particles from the drive enter the medium. The consequence of an incorrect selection is microbiological contamination; we validate the surface finish and the certificates of FDA compliance to ensure purity in the pharmaceutical industry.

Question 12

How does the flow behavior of solids-laden media in the pump head affect the integrity of food components?

Accepted Answer

In food production—for example, when processing fruit purees—particles must be handled gently. The ＜b＞flow behavior of solids-laden media in the pump head＜/b＞ is characterized by large valve cross-sections and low flow velocities. The mechanical design prevents the ingredients from being mechanically crushed. The result is a high-quality end product; unlike centrifugal pumps, the ＜b＞industrial diaphragm pump＜/b＞ offers minimal shear for ＜b＞use in food production＜/b＞.

Question 13

What advantages does hermetic separation using sandwich membranes offer in terms of protecting operating personnel?

Accepted Answer

When handling toxic substances, the architecture of ＜b＞the sandwich membrane ＜/b＞serves as ＜b＞the ＜/b＞primary safety barrier. The mechanism ＜b＞by which sandwich membranes provide hermetic separation＜/b＞ prevents the medium from escaping, even if the pumping membrane ruptures. The result is maximum personal safety; to this end, HARTON integrates optical or electronic ＜b＞membrane rupture monitoring＜/b＞ to immediately signal malfunctions and ＜b＞ensure process safety ＜/b＞.

Question 14

Why is minimizing internal leakage through precise valve seats critical for maintaining formulation accuracy?

Accepted Answer

The technical foundation is the precise fit between the valve ball and the seat ring. ＜b＞Minimizing internal leakage through precise valve seats＜/b＞ ensures that exactly the defined volume is delivered per stroke. The mechanical design prevents backflow during the compression phase. The result is a high degree of repeatability in dosing; our manufacturing specialists validate the leak-tightness of each ＜b＞ball check valve before ＜/b＞installing it in the ＜b＞chemical dosing pump＜/b＞.

Question 15

How does HARTON validate the certification of diaphragm pumps for hygienic applications in CIP processes?

Accepted Answer

We validate the ＜b＞integration of diaphragm pumps into process systems＜/b＞ through cleaning tests (riboflavin test). The logical sequence ensures that the ＜b＞pneumatic diaphragm pump＜/b＞ can be completely cleared of product residues. This prevents cross-contamination; our quality assurance department documents the cleanability of ＜b＞the hermetic process pump＜/b＞ in accordance with international standards such as EHEDG or 3-A.

Question 16

To what extent does the stroke frequency affect dosing accuracy, and how does this determine the quality of active ingredient mixtures?

Accepted Answer

The starting point is the dynamic viscosity of the carrier fluids. The mechanical principle dictates that a low stroke frequency improves the chamber’s filling behavior when handling viscous media. The consequence of too high a frequency is cavitation and a loss of accuracy; HARTON technicians program specific ＜b＞performance data for diaphragm pumps in continuous operation＜/b＞ to ensure gentle and precise product handling.

Question 17

What preventive maintenance procedures for positive-displacement pumps are required for sterile processes?

Accepted Answer

Maintenance includes the periodic replacement of ＜b＞PTFE seals＜/b＞ and inspection of the diaphragm surface for hairline cracks. ＜b＞Preventive maintenance of positive displacement pumps＜/b＞ is performed at fixed intervals to prevent biofilm formation in areas subject to wear. The result is consistent sterile integrity; to this end, we supply pre-assembled kits for ＜b＞replacing transfer diaphragms and ball valves＜/b＞, including material certificates.

Question 18

Why is the interface for digital condition monitoring in the pharmaceutical industry necessary for e-batch recording?

Accepted Answer

The technical starting point is the comprehensive documentation of dosing parameters. The ＜b＞interfaces for digital condition monitoring＜/b＞ transmit data on stroke count, pressure, and the status of the diaphragms directly to the control system. The result is automated logging for quality assurance; HARTON engineers specify state-of-the-art sensors for ＜b＞monitoring the operating pressure in diaphragm pump systems＜/b＞.

Question 19

How does HARTON calculate the volumetric efficiency of positive-displacement pumps, taking gas bubbles into account?

Accepted Answer

We ＜b＞calculate the volumetric efficiency of positive-displacement pumps＜/b＞ by taking into account the medium’s compressibility factor. In food production, gas entrapment—for example, in creams—can skew the efficiency. Mechanical logic requires an adjustment to ＜b＞the stroke length setting＜/b＞. A measurable indicator of quality is the consistency of the fill weight; we validate this for every ＜b＞low-maintenance diaphragm pump＜/b＞ during a test run.

Question 20

What technical selection criteria for membrane systems apply to high-viscosity pastes?

Accepted Answer

The most important criteria are suction capacity and valve type, in accordance with the ＜b＞Technical Selection Criteria for Diaphragm Systems＜/b＞. The mechanical design of systems handling pastes often requires spring-loaded valves or ＜b＞flap valves＜/b＞ instead of ball valves. An incorrect selection results in incomplete filling of the working chamber; therefore, our project engineers select units with extremely short suction strokes for ＜b＞use in food production＜/b＞.

Question 21

What certification for diaphragm pumps in ATEX zones is required for offshore use?

Accepted Answer

The technical starting point is the corrosive, saline atmosphere and the risk of explosion posed by the hydrocarbons being pumped. The ＜b＞certification of diaphragm pumps for ATEX zones＜/b＞, e.g., Group II, Category 2G, guarantees the safe dissipation of electrical charges and the use of spark-free materials. Failure to comply results in a catastrophic risk of accidents. HARTON validates the housing grounding and the durability of ＜b＞the PTFE diaphragms＜/b＞ to ensure ＜b＞process safety in petrochemical production＜/b＞. See our ATEX checklist.

Question 22

How does the operating principle of hydraulic diaphragm steering affect compressive strength in high-pressure applications?

Accepted Answer

In the petrochemical industry, pressures exceeding 100 bar are often required, which is why the design is based on the ＜b＞operating principle of hydraulic diaphragm control＜/b＞. The mechanical operating mechanism uses a hydraulic oil cushion behind the diaphragm to distribute the load evenly. The result is a dramatic increase in pressure resistance without placing mechanical stress on the elastomer; unlike purely mechanical pumps, this ＜b＞hermetic process pump＜/b＞ delivers extremely long service life even under maximum load.

Question 23

What advantages does hermetic separation using sandwich membranes offer for environmental technology in refineries?

Accepted Answer

The architecture of ＜b＞the sandwich membrane provides ＜/b＞a redundant barrier against the leakage of oil or chemicals. The mechanical design ＜b＞of the sandwich membrane ensures hermetic separation＜/b＞, guaranteeing that no environmental contamination occurs even in the event of a failure. The result is compliance with the strictest environmental regulations; at HARTON, we validate barrier integrity to ensure the ＜b＞MTBF analysis for process-critical membrane pumps＜/b＞ in continuous operation.

Question 24

Why is minimizing internal leakage through precise valve seats critical for the injection of inhibitors?

Accepted Answer

The technical starting point is the dosing of corrosion inhibitors in oil pipelines. ＜b＞Minimizing internal leakage through precise valve seats＜/b＞ ensures that the exact amount is delivered even when pipeline pressures vary. The mechanical design prevents underdosing, which would lead to severe corrosion damage to the infrastructure. The result is assured plant integrity; to achieve this, our manufacturing specialists rely on ＜b＞zirconia ball valves＜/b＞ to ensure maximum precision in the ＜b＞chemical dosing pump＜/b＞.

Question 25

How does HARTON validate the monitoring of operating pressure in diaphragm pump systems for long-distance pipelines?

Accepted Answer

We validate system reliability by monitoring the ＜b＞operating pressure in diaphragm pump systems＜/b＞ via digital remote transmission (SCADA integration). The mechanism detects pressure pulsations that indicate an incipient blockage or diaphragm damage. This enables timely intervention; HARTON engineers specify robust ＜b＞interfaces for digital condition monitoring＜/b＞ designed for harsh field conditions in the ＜b＞petrochemical industry＜/b＞.

Question 26

To what extent does the stroke frequency affect dosing accuracy, and how does this determine the efficiency of glycol injection?

Accepted Answer

The starting point is preventing hydrate formation in natural gas pipelines caused by glycol. The mechanical logic dictates that the dosing rate must be adjusted in proportion to the well production rate. The consequence of faulty control is a blockage in the pipeline; we validate the ＜b＞performance data of diaphragm pumps in continuous operation＜/b＞ to ensure synchronized and demand-driven flow through the ＜b＞diaphragm pump system＜/b＞.

Question 27

What is the standard preventive maintenance procedure for positive-displacement pumps used in high-pressure injection systems?

Accepted Answer

Maintenance includes changing the oil in the hydraulic reservoir and inspecting the gas cushion in ＜b＞the pulsation damper＜/b＞. ＜b＞Preventive maintenance of positive-displacement pumps＜/b＞ minimizes mechanical wear on ＜b＞the crankshaft assembly＜/b＞. This helps prevent fatigue fractures in highly stressed components; HARTON provides detailed service schedules for ＜b＞replacing delivery diaphragms and ball valves＜/b＞ under high-pressure conditions.

Question 28

Why are the specifications for industrial diaphragm pumps a priority when procuring equipment for offshore platforms?

Accepted Answer

The most important criteria are seawater resistance and a compact design in accordance with the ＜b＞Technical Selection Criteria for Diaphragm Systems＜/b＞. The mechanical design often requires housings made of super duplex steel. Inadequate ＜b＞B2B pump procurement＜/b＞ can result in premature corrosion failure of the unit; therefore, our project engineers prepare ＜b＞industry-specific＜/b＞ material certificates in accordance with the NACE standard for the ＜b＞specification of diaphragm pumps＜/b＞.

Question 29

How does HARTON calculate the volumetric efficiency of positive-displacement pumps under high-pressure conditions?

Accepted Answer

We ＜b＞calculate the volumetric efficiency of positive-displacement pumps＜/b＞, taking into account the compressibility of the hydraulic fluid and the medium. Under high pressure, efficiency decreases due to elastic housing expansion. The mechanical design requires precise stroke length adjustment. The final pressure achieved serves as a measurable indicator of quality. We validate this for every ＜b＞hermetic process pump＜/b＞ on our high-pressure test bench.

Question 30

What advantages does the modular design of multi-head dosing stations offer for refinery technology?

Accepted Answer

The architecture allows ＜b＞for＜/b＞ the ＜b＞modular design of multi-head dosing stations＜/b＞ for the parallel dosing of various additives—such as octane boosters—into a main stream. The mechanical operating mechanism ensures a synchronized dosing rate through mechanical coupling. The result is consistent product quality; to this end, our project engineers often specify integrated ＜b＞leak sensors for ＜/b＞each pump head individually to ensure maximum ＜b＞process reliability＜/b＞.

Question 31

How does the flow behavior of solids-laden fluids in the pump head affect wear on the valve seats?

Accepted Answer

The technical starting point is the high particle concentration in ceramic slurries, whereby the ＜b＞flow behavior of solids-laden media in the pump head＜/b＞ leads to high local flow velocities at the valve edges with each stroke. The mechanical logic is that abrasive particles such as quartz or feldspar act like an abrasive on the sealing surfaces. The result is a loss of self-priming due to leakage; our manufacturing specialists at HARTON therefore primarily rely on ＜b＞zirconia ball valves＜/b＞ and hardened seats to optimize the ＜b＞MTBF analysis for process-critical diaphragm pumps＜/b＞.

Question 32

What type of wear protection provided by coated pump heads is necessary for chemically aggressive glazes?

Accepted Answer

The starting point is the chemical composition of the glaze, which often contains metal oxides and acids. ＜b＞Wear protection provided by coated pump heads＜/b＞—for example, with E-CTFE or PFA—combines the mechanical stability of the metal housing with the chemical inertness of plastics. This integrated approach simultaneously prevents material loss due to corrosion and abrasion. The consequence of a missing coating is pitting in the housing; we validate the coating thickness in our quality assurance process to guarantee the ＜b＞service life of the transfer diaphragm＜/b＞ even under 24/7 operation.

Question 33

What types of errors occur when trying to prevent cavitation damage in diaphragm pumps when handling high-viscosity clay slurries?

Accepted Answer

A technical fault occurs when the pumping frequency is too high for fluids with a viscosity greater than 3,000 mPa·s. The resulting chain of physical cause and effect causes the heavy liquid column to break away during the suction phase, leading to severe pressure surges and diaphragm flutter. The result is premature fatigue failure; to ＜b＞prevent cavitation damage in diaphragm pumps＜/b＞, our technicians reduce the stroke speed and increase the suction cross-sections of the ＜b＞stainless steel AODD pump＜/b＞.

Question 34

How does preventive maintenance of displacement units ensure the efficiency of filter presses?

Accepted Answer

Maintenance is based on monitoring the flow rate against the maximum pressing pressure. ＜b＞Preventive maintenance of positive-displacement units＜/b＞ involves replacing the flat membranes before the fabric reinforcement fails due to constant cyclic loading. The mechanical result is a consistent degree of dewatering of the filter cake; HARTON provides specific service intervals for ＜b＞membrane pump systems＜/b＞ to prevent downtime during the pressing process.

Question 35

Why is the stroke length adjustment crucial for the precise dosing of color pigments?

Accepted Answer

The technical starting point is the defined displacement volume per operating cycle. The mechanical ＜b＞stroke length adjustment changes ＜/b＞the diaphragm’s travel and thus the chamber volume. The logical result is a precise adjustment of the pigment quantity to the base flow. An incorrect setting results in a color deviation in the ceramic batch; to address this, our engineers often integrate automatic adjustment drives into the ＜b＞control system of diaphragm pumps via PLC interfaces＜/b＞.

Question 36

What level of resistance to oxidative media is essential for modern UV coatings?

Accepted Answer

The technical challenge stems from the aggressive chemistry of UV curing agents and solvents. The ＜b＞resistance of diaphragm materials to oxidative media＜/b＞ requires the use of ＜b＞PTFE sandwich diaphragms＜/b＞, as standard elastomers such as ＜b＞NBR ＜/b＞would swell ＜b＞immediately ＜/b＞. This chemical principle prevents the medium from diffusing into the drive area. Choosing the wrong material results in a total failure of the ＜b＞PTFE compressed air diaphragm pump＜/b＞; at HARTON, we validate material compatibility before finalizing any specification.

Question 37

How does the use of pulsation dampers affect print quality in flexographic printing?

Accepted Answer

The design of the oscillating pump inherently causes pressure fluctuations. The mechanical action of a ＜b＞pulsation damper smooths out ＜/b＞these peaks, enabling a constant ink supply to the anilox roller. The result is a streak-free print image; unlike in an undamped delivery system, this ensures the ＜b＞efficiency of the positive displacement pump＜/b＞ and protects the ＜b＞suction valve units＜/b＞ from mechanical stress.

Question 38

What certification for diaphragm pumps in ATEX zones applies to paint mixing rooms?

Accepted Answer

The starting point is the presence of flammable solvent vapors (Zone 1). ＜b＞Certification of diaphragm pumps for ATEX zones＜/b＞ requires the use of conductive plastics or grounded metal housings. The physical design prevents the generation of ignition sparks caused by electrostatic charging on the ＜b＞sandwich diaphragm＜/b＞. The result is maximum explosion protection; HARTON documents the grounding continuity for every ＜b＞ATEX diaphragm pump＜/b＞.

Question 39

Why is checking for leaks at maintenance intervals critical to the process for paint pumps?

Accepted Answer

We validate the pump after every diaphragm replacement by ＜b＞performing＜/b＞ a ＜b＞leak test＜/b＞ at rated pressure ＜b＞following maintenance intervals＜/b＞. The mechanical logic ensures that the housing screws are tightened evenly and that no paint residue remains in the seal seat. This prevents fire hazards caused by leaking solvents; our Quality Assurance department provides validated test reports for the ＜b＞low-maintenance diaphragm pump＜/b＞.

Question 40

Which digital condition-monitoring interfaces help optimize ink consumption?

Accepted Answer

The technical starting point is recording the number of strokes to calculate the volume consumed. This data is transmitted to the ERP system via ＜b＞interfaces for digital condition monitoring＜/b＞. The logical chain enables precise inventory management and detects leaks early on. The result is cost optimization for ＜b＞membrane pump systems＜/b＞; to achieve this, our technicians integrate inductive stroke sensors into the ＜b＞air-operated diaphragm pumps (AODD)＜/b＞.

＜b＞Volume flow rate Q:＜/b＞	0.01 l/min to 1,200 l/min (depending on the model)
＜b＞Differential pressure Δp:＜/b＞	Standard up to 10 bar, high-pressure versions up to 16 bar
＜b＞Temperature range:＜/b＞	-20 °C to +110 °C (depending on the diaphragm material)
＜b＞Viscosity:＜/b＞	up to 55,000 mPa·s (at an adjusted stroke frequency)
＜b＞Solid content:＜/b＞	up to 25% by weight (depending on particle size)
＜b＞Self-priming head:＜/b＞	up to 7 m WS (variable dry/wet)
＜b＞Drive Types:＜/b＞	Pneumatic (AODD) or Electric (Motor/Eccentric)
＜b＞Pulsation characteristics:＜/b＞	Minimal in multi-diaphragm systems; can be damped in double-diaphragm systems

Drive type	Electric
Flow rate	3 l/min
Delivery head	89 m
Temperature range	±0 to +77 °C
Max. Density	1,0 kg/dm³
Max. Viscosity	30 cp
Case pressure	20 bar
Engine variant 1	230 V, 1 Ph, 50 Hz
Engine variant 2	110 V, 1 Ph, 60 Hz
Input power	85 W
Output power	40 W
Total weight	ca. 2,9 kg

Drive type	Electric
Max. flow rate	10 l/min
Delivery head	28 m
Flow rate at a head of 30 m	ca. 5,5 l/min
Flow rate at a head of 26 m	ca. 6 l/min
Flow rate at a head of 17 m	ca. 7 l/min
Flow rate at a head of 11 m	ca. 8 l/min
Flow rate at a head of 5 m	ca. 9 l/min
Temperature range	0 to +60 °C
Max. Density	1,0 kg/dm³
Max. Viscosity	30 mPa·s
Case pressure	15 bar
Power and Weight	110 W, ca. 3,4 kg

Drive type	Electric
Max. flow rate	9 l/min
Max. delivery head	50 m
Flow rate at a head of 10 m	ca. 8,4 l/min
Flow rate at a head of 20 m	ca. 7,8 l/min
Flow rate at a head of 30 m	ca. 7,2 l/min
Flow rate at a head of 40 m	ca. 6,6 l/min
Flow rate at a head of 50 m	ca. 6 l/min
Temperature range	±0 to +60 °C
Max. Density	1,0 kg/dm³
Max. Viscosity	30 cp
Case pressure	15 bar
Performance	110 W input power, 40 W output power

Media	Chemicals, aggressive media, viscous liquids
Viscosity	50 - 500.000 mPa·s
Temperature	-10 to +80 °C
Materials	Stainless steel, PTFE, PVDF
ATEX	yes
Dosing capacity	0,1 - 2.000 l/h
Pressure	up to 8 bar
Accuracy	±1 - 3 %

Dosing capacity	0,1 - 500 l/h
Pressure	up to 6 bar
Accuracy	±0,5 - 2 %
Media	Food, pharmaceutical liquids
Viscosity	10 - 50.000 mPa·s
Temperature	-20 to +100 °C
Materials	Stainless steel, PTFE, FKM
ATEX	optional

Pressure	up to 10 bar
Accuracy	±0,5 - 2 %
Media	Abrasive liquids, Sludge, Wastewater
Viscosity	10 - 100.000 mPa·s
Temperature	-20 to +80 °C
Materials	Stainless steel, Duplex steel, PTFE
ATEX	optional
Dosing capacity	0,1 - 1.000 l/h

Media	Viscose, Chemicals, petrochemical liquids
Viscosity	1 - 100.000 mPa·s
Temperature	-20 to +150 °C
Materials	Stainless steel, Hastelloy, PTFE
ATEX	optional
Dosing capacity	0,1 - 500 l/h
Pressure	up to 100 bar
Accuracy	±1 - 3 %

Diaphragm Pumps - Robust Positive-Displacement Technology for Maximum Process Reliability

Why Choose Diaphragm Pumps from Harton Anlagentechnik GmbH?

Technical Specifications and Limits of Use

Technical Specifications

Focus on Media and Process Materials

Materials, Durability, and Engineering

Seals, Interfaces, and Plant Safety

Drive, Control, and ATEX Compliance

Quality, Testing, and Documentation

Service, Maintenance, and TCO Analysis

References and Technological Leadership

Products

Types and Varieties of Diaphragm Pumps

FAQs by Industry