Manufacturer of waist wheel flowmeter

NegotiableUpdate on 12/21

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Nature of the Manufacturer: Producers

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Overview

The waist wheel flowmeter manufacturer is a high-precision measuring instrument used for continuous or intermittent measurement of flow in pipelines. It has the characteristics of high precision, good reliability, light weight, long service life, and easy installation and use

Product Details

Manufacturer of waist wheel flowmeter

1Overview
LL waist wheel flowmeter is a high-precision measuring instrument used for continuous or intermittent measurement of flow in pipelines. It has the characteristics of high accuracy, good reliability, light weight, long service life, and easy installation and use, and is a typical feature of volumetric flow meters.
The LL waist wheel flowmeter mainly consists of a measuring chamber, a sealed coupling, and a counter. It can indicate cumulative flow and instantaneous flow on site, equipped with a transmitter and intelligent flow controller, and can achieve remote measurement and control. Widely used for precise measurement of fluids such as petroleum and petroleum products, chemical solutions, etc. in sectors such as petroleum, chemical, power, metallurgy, transportation, food processing, medicine, national defense, and commercial trade.

2、 Working principle
When the measured liquid flows through the measuring chamber, a pressure difference is formed at the inlet and outlet of the flowmeter, and the waist wheel rotates under the push of this pressure difference. Simultaneously, by fixing a pair of driving gears on the waist wheel shaft, the two waist wheels maintain continuous rotation. As the waist wheel rotates, the liquid is continuously discharged from the flow meter through the measuring chamber. The amount of liquid flowing through each pair is four times the volume of the measuring chamber. Through a sealed coupling and a reduction mechanism, the number of rotations is reduced and transmitted to a counter, which indicates the instantaneous flow rate and cumulative flow rate of the liquid. Installing a transmitter in the counter mechanism becomes an LL waist wheel flowmeter with a transmitter. Paired with display instruments or microcomputer systems, it can achieve remote (quantitative, cumulative, instantaneous, etc.) automated measurement and control.

IIIMain component material combination

Material parts	KY-AL			KY-EL				KY-LL
Material parts	cast iron	cast aluminum	stainless steel	cast steel	cast aluminum	stainless steel	cast iron	cast iron	cast aluminum	stainless steel
housing	☆			☆				☆
rotor		☆			☆			☆
cover plate	☆						☆		☆
rotor shaft			☆			☆				☆
bearing			☆			☆				☆

4Performance and pressure loss curve

5、 Technical parameters① Nominal pressure (MPa): 0.6, 1.0, 1.6, 2.5, 4.0 ② Operating temperature: (℃): -10~60 ③ Accuracy level: 0.5, 0.2 ④ Flow range: (m)³/h）

Nominal diameter DN	液体粘度 3.0~150mpa.s	液体粘度 3.0~150mpa.s	液体粘度 3.0~150mpa.s	液体粘度 3.0~150mpa. s
15	0.25~2.5	0.5~2.5	0.5~2.5	0.83~2.5
20	0.25~2.5	~2.5	0.5~2.5	0.83~2.5
25	0.6~6	1.2~6	1.2~6	2~6
40	1.6~16	3.2~16	3.2~16	5.3~16
50	2.5~25	5~25	5~25	8.3~25
80	6~60	12~60	12~60	20~60
80Ⅱ	12~100	22~100	20~100	33.3~100
100	10~100	20~100	20~100	33.3~100
150	40~200	40~200	100~200	66.7~200
accuracy class	0.5		0.

(1) Outline dimensions of cast iron waist wheel flowmeter

(2) Outline dimensions of cast steel waist wheel flowmeter

model	L	H	I	B	D	D1	n-d
KY-EL25.3	180	260	68	120*120	G11/4
KY-AL40.4	300	290	88	170	150	110	4-18
KY-AL50.4	360	315	103	276	165	125	4-18
KY-AL80.4	360	348	128	254	200	160	4-18
KY-AL100.3	540	435	174	330	235	190	4-22
KY-AL150.3	560	552	227	455	300	250	4-26

(3) The external dimensions of the cast aluminum waist wheel flowmeter are the same as those of the cast iron waist wheel flowmeter.

Manufacturer of waist wheel flowmeter

Installation and Usage

(1) A filter should be installed in front of the flowmeter, and the arrows on the meter body of both should point in the direction of flow*

(2) When the measured liquid contains gas, a gas separator should be installed in front of the flowmeter

(3) Regardless of whether the pipeline is installed vertically or horizontally, the waist wheel axis of the flowmeter should be installed in a horizontal position (i.e. the dial should be perpendicular to the ground).

(4) If it is difficult to see the reading clearly when the flowmeter is installed correctly, the counter can be rotated 180 or 90 degrees.

(5) The throttle valve should be installed at the inlet of the flowmeter, and the on-off valve should be installed at the outlet. When using the on-off valve, it should be started slowly and not suddenly opened.

(6) It is strictly prohibited to use sweeping steam through flow meters

(7) In the continuous use department, a bypass pipeline needs to be added to the flowmeter

(8) Before installing the flowmeter, the pipeline needs to be flushed. During flushing, a straight pipe section (replacing the position of the flowmeter) is used to prevent welding slag, debris, etc. from entering the flowmeter

(9) It is strictly prohibited to use water to calibrate flow meters made of cast iron or steel materials

(10) The flow rate of the flowmeter shall not exceed the technical requirements during use. The flowmeter works normally at a high flow rate of 70-80%.

(11) If the measured liquid has chemical corrosiveness, a stainless steel flowmeter should be selected. If the corrosiveness is strong, a 0Crl8Ni12MO2Ti flowmeter should be selected.