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Product
MXB Type Metering Pump
- Product details
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Core Performance Parameters
Parameter Item Specific Index Parameter Item Specific Index Max Flow Rate 1100 L/H Max Pressure 10 bar Material Temperature Range Metal hydraulic end: +90°C;
Plastic hydraulic end: +50°C
Steady-State Accuracy ±1% (10%~100% adjustment range) Flow Adjustment Range 0~100% Suction Lift 2m water column (except viscous materials) Max Inlet Pressure 2 bar Diaphragm Service Life 20000h (PTFE/rubber composite diaphragm) Design Standard Complies with API675 Core Structural & Functional Features
Feature Category Key Advantages & Configuration Core Design Built-in relief valve (overpressure protection);
Compact structure (small footprint);
Oil bath lubrication (high reliability);
Easy maintenance;
Single/dual diaphragm optional;
Multi-unit parallel available
Motor Specifications Protection class: IP55;
Insulation class: F;
Rotation speed: 1500 rpm;
Complies with national & international standards
Hydraulic End PUMP head materials: PVC, 316SSConcentrated H₂SO₄ application: 316SS end, 904L valve seat, Hastelloy C valve ballHigh viscosity application: 316SS end, 316SS spring-loaded valve ball, Hastelloy C springSlurry application: 316SS end, 440C valve ball & seat Optional Configurations
Optional Type Details Safety & Detection Dual diaphragm rupture detection;
Stroke counter
Control Modes Automatic flow adjustment, electric actuator, pneumatic actuator, frequency conversion adjustment Connection Flange connection Core Application Scenarios
Municipal water treatment
Power plant boiler water treatment, industrial water & wastewater treatment
Petrochemical, chemical engineering and oil refining processes
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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.
