Portland cement Portland cement
The main mineral composition of Portland cement is: tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite. The tricalcium silicate determines the strength of the Portland cement within four weeks; the dicalcium silicate exhibits strength after four weeks, and the strength of the three-calcium silicate is about four weeks; the strength of the tricalcium aluminate Play faster, but the strength is low, which plays a certain role in the strength of Portland cement in 1 to 3 days or a little longer; the strength of tetracalcium aluminate is also faster, but the strength is low, on silicon The strength contribution of the acid cement is small.
Portland cement is divided into two types. It is called type I Portland cement without mixing material, code P·I; it is called II with limestone or granulated blast furnace slag mixed material not exceeding 5% of cement quality. Type Portland cement, code P·II.
Zhejiang Sealand Technology Co., Ltd.is a trustworthy supplier of Oil Mass Flow Meter, Oil Mass Flowmeter, Oil Coriolis Flow Meter, Oil Coriolis Flowmeter, Oil Coriolis Flow Meter, ATEX, IECEx & CE approved.
Operating Environment
Atmospheric pressure: 85kPa~106kPa
Ambient temp.: Refer to Chapter 1.6
Relative humidity: 5%~95%, non condensing
Operating conditions
Fluid: Liquid/Gas
Fluid temperature: -200°C~+200°C (higher temp. model is customizable)
Nominal pressure: 4MPa or 25MPa (Customizable)
Supply voltage: AC 85~265VAC, 50/60Hz or DC 12~24VDC(±5%), 5W
Outputs: Pulse 0~10KHz, RS-485, 4-20mA & HART (optional)
The meter consists of mass flow sensor and transmitter. Mass flow sensor is a phase-sensitive resonant sensor based on Coriolis effect, composed of vibration tube, signal detector, concussion driver, structural support, shell, etc.
Mass flow transmitter is a micro-programming-centered electronic system, which supplies
thrust to sensor, transforms sensor signal into mass flow signal & others, and improves
accuracy in accordance with temperature parameter.
It`s composed of switching power supplier, guard grating, core processor board, display
module, etc., installed in a ex-proof junction box. Switching power supply offers power for
transmitter; safe grating isolates sensor and transmitter intrinsically; core processor detects
& processes sensor phase signal, sends mass flow signal and process communication.
Oil Mass Flow Meter, Oil Mass Flowmeter, Oil Coriolis Flow Meter, Oil Coriolis Flowmeter, Oil Coriolis Flow Meter
Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeters.com