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Product
MA/MB Type Mechanical Diaphragm Metering Pump
- Product details
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Core Performance Parameters
Parameter Item Specific Index Parameter Item Specific Index Max Single-Head Flow 1800L/H Max Discharge Pressure 12bar Flow Adjustment Ratio 10:1 Steady-State Accuracy ±2% Suction Lift Height 3m water column Max Inlet Pressure 2bar Max Tolerable Material Temperature 40℃ Core Structural Features
Structural Part Core Advantages & Configuration Hydraulic End Mechanically driven diaphragm (no guard plate for smooth material flow); Multi-material pump heads (PVC/PVDF/316SS, suitable for normal/ high-viscosity/slurry materials); Self-cleaning check valve structure Drive End Variable eccentric mechanism (smooth flow pulsation); Reinforced structure (for harsh working conditions); Wear-resistant ball bearings (stable operation); Oil bath lubrication (extends drive component life); Flow adjustable in stop/operation state Core Application Scenarios
Municipal water treatment, industrial water/wastewater treatment, swimming pool water treatment and other water treatment dosing processes.
Optional Configurations
Double diaphragm pump head: Equipped with rupture pressure gauge detection & pressure switch detection.
Stroke counting sensor: Support PNP/NPN/relay output.
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Q
What is a thermocouple?
A
Thermocouples are the preferred solution for extreme temperature applications. They consist of two dissimilar metal wires joined at the measuring end, generating a voltage proportional to the temperature difference.
Working Principle: When two different metals are connected, the thermoelectric effect produces a voltage at the junction. This voltage increases with rising temperature, allowing measurement via reference tables.
Key Advantages:
• Temperature Range: -270°C to 2300°C (depending on type)
• Fast Response Time (typically 0.1–10 seconds)
• Robust Construction, vibration-resistant
• Relatively Low Cost
• No External Power Required
Q
What is the difference between RTD and thermocouple?
A
• RTD (Resistance Temperature Detector): Based on the principle that a metal conductor's resistance increases with temperature, it converts resistance measurements into temperature readings.
• Thermocouple: Operates on the Seebeck effect, where two dissimilar metals in contact generate a thermoelectric voltage proportional to temperature differences.
Features
• RTD: High accuracy, stable signal, excellent linearity, ideal for low to medium temperatures.
• Thermocouple: Simple structure, fast response, high-temperature resistance, wide measurement range.
Pros & Cons
• RTD Pros: High precision, strong anti-interference, reliable low-temperature performance.
Cons: Limited upper temperature range, bulkier size, slightly slower response.
• Thermocouple Pros: Broad temperature range, high-temperature tolerance, rapid response, suitable for moving/surface measurements.
Cons: Lower accuracy at low temperatures, requires cold junction compensation, weaker signal prone to interference.
