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Intelligent Vortex Flow Sensor-SN53

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Product introduction

SN53 series vortex flowmeter is a kind of velocity type flow meter made according to Carmen vortex theory, using the principle of natural vibration of fluid and piezoelectric crystal or differential capacitor as the detecting part.
The product adopts unique differential technology, with isolation, shielding, filtering and other measures to overcome the similar products with poor seismic resistance, noise, small signal data disorder and other problems, and uses a unique detection probe encapsulation of new technologies and protective measures to ensure the reliability of the product.
The product has basic type, temperature and pressure compensation of two types of measurement, the basic type of measurement of a single condition flow signal, temperature and pressure compensation of the integrated type can simultaneously measure the temperature, pressure, flow signal, after compensation, the output of the standard volume flow or mass flow. There are two types of structure: pipeline type and insertion type. It can be displayed on site or transmitted over a long distance, and can be networked with a computer to achieve centralised management. Each type has high temperature, high pressure, explosion-proof and other specifications, and there are split and whole structure to adapt to different measurement media and installation environment.
This product has a wide range than a series of advantages such as high precision, easy installation and maintenance and wide adaptability to the medium. It can be widely used in petroleum, chemical, metallurgy, machinery, food, paper, medicine, and urban pipeline heating, water supply, gas and other industries in a variety of low-viscosity liquids, gases, steam and other single-phase fluids, process measurement and energy-saving management.

Technical Description Dimension Drawing Working Principle Measurement Range Dimensional Drawing 1 (Flange Connection Type) Dimension Drawing 2 (Flange Clamping Type) Selection Table

Calibre

DN15 - DN300

Measuring liquids

Saturated steam, superheated steam, liquid, gas

Accuracy

±1.0, 1.5 (plug-in 2.5)

Measurement repeatability

0.3 （R)

Nominal pressure

1.6Mpa 、2.5MPa 、4.0MPa 及以上

Fluid temperature

-40~250°C (normal type), 100~350°C (high temperature type)

Output Signal

3-wire pulse output or 2-wire 4-20mA standard current

Power supply

+24VDC

Working environment

Temperature -25~60°C

Humidity

≤90 RH

Non-streamlinear vortex generator (resistive fluid) in the fluid, then from the vortex
The two sides of the vortex generator alternately produce two rows of regular vortices, which are called Karman vortex street as shown in Figure (I).
This type of vortex is called Karman vortex street as shown in Figure (I).

The vortex columns are arranged asymmetrically downstream of the vortex generator. Let the occurrence of vortex
Frequency of the vortex is f, the average velocity of the measured medium is V, the vortex generator meets the flow surface
Width of the vortex generator for d, the table body diameter for D, according to the principle of Carman vortex street, there is the following relationship:
f=StV/d
Equation (1)
Where: f a generator side of the Kamen vortex generated frequency
St a Strohal number (dimensionless number)
V - the average flow velocity of the fluid
d a vortex generator width

It can be seen that, by measuring the Kamen vortex separation frequency can be calculated instantaneous flow
The instantaneous flow rate can be calculated by measuring the Kamen vortex street separation frequency. The Strohal number (St) is a dimensionless unknown, and Fig. (ii) shows the Strohal number (St).
Strohal number (St) and Reynolds number (Re) relationship.

It can be seen that the instantaneous flow can be calculated by measuring the Kamen vortex separation frequency.
The instantaneous flow can be calculated by measuring the Kamen vortex separation frequency. The Strohal number (St) is a factorless unknown, and Figure (II) shows the Strohal number (St) versus the Reynolds number (Re).
Strohal number (St) and Reynolds number (Re) relationship.
K=N/Q(1/m³)
Formula (1)
Where:K=Instrument constant (1/m³).
N=number of pulses
Q=volume flow rate (m³)

Instrument calibre (mm)	Fluids			Gases
	Measurement range (m³/H)	Output Frequency Range(Hz)	small signal	Measurement range (m³/H)	Output frequency range(Hz)	Small signal
15	0.4 ~4	40 ~400	15	5.0-15	280 ~ 1200	100
20	0.8 ~8	33 ~330	10	6 ~30	230 ~ 1100	80
25	1.2～ 12	25 ~250	8	10.0 ～55	200 ~ 1200	70
32	2.0 ~20	20 ~200	6	12 ~ 120	120 ~ 1200	60
40	3.0 ～30	15 ~ 150	6	20 ～200	100 ~ 1000	50
50	5.0～ 50	13 ~ 130	5	30 ～300	80 ~800	40
65	8.0 ~80	9.7 ~97	4	50～ 500	60 ~600	30
80	12～ 120	7.7 ~77	3	80 ～800	50 ~500	25
100	20 ～200	6.7 ~67	2	120 ~ 1200	40 ~400	20
125	30 ~300	5.0 ~50	2	200 ~2000	35 ~350	20
150	40 ～400	3.8 ~38	1	300 ～3000	30 ~300	15
200	75 ～750	3.0 ~30	1	500～ 5000	20 ～200	10
250	110～ 1100	2.3 ～23	1	800 ～8000	16～ 160	5
300	160～ 1600	2.0 ～20	1	1100～ 11000	13～ 130	5

Nominal diameter （mm）	Flange connection type
	Meter length L（ mm）	Meter height H（ mm）	Flange Outer Diameter D(mm)	Flange Thickness C(mm)	Bolt hole distance K(mm)	Bolt Hole Diameter (mm)	Bolt Number of holes	Bolt specification	Piping specifications
25	160	352	115	16	85	14	4	M 12	Φ32*3.5
32	160	352	140	18	100	18	4	M 16	Φ39*4.5
40	180	345	150	18	110	18	4	M 16	Φ48*4
50	180	350	165	19	125	18	4	M 16	Φ59*4.5
65	180	358	185	20	145	18	4	M 16	Φ74*4.5
80	180	365	200	20	160	18	8	M 16	Φ89*4.5
100	200	375	220	22	180	18	8	M 16	Φ 109*4.5
125	200	390	250	22	210	18	8	M 16	Φ 134*4.5
150	200	405	285	24	240	22	8	M 16	Φ 159*4.5
200	200	430	340	26	295	22	12	M 16	Φ219*9
250	250	455	405	28	355	26	12	M24	Φ273*11
300			460	28	410	26	12	M24	Φ325*12
* Flange connection type turbine flowmeter does not come with pipe flange and bolts, users need to purchase separately.

Nominal diameter （mm）	Flange Clamping Type
	Meter length L（ mm）	Installation Length L（ mm）	Meter height H (mm)	Outside diameter of end face D( mm)	Piping specifications
15	70	106	381	55	Φ18*1.5
20	70	106	381	55	Φ25*2.5
25	70	106	381	55	Φ32*3.5
32	70	106	381	55	Φ39*3.5
40	85	121	381	80	Φ49*4.5
50	85	121	391	90	Φ59*4.5
65	85	121	405	105	Φ74*4.5
80	85	116	420	120	Φ89*4.5
100	85	118	440	140	Φ109*4.5
125	90	124	465	168	Φ134*4.5
150	102	135	492	192	Φ159*4.5
200	102	150	548	248	Φ219*9
250	115	166	605	300	Φ273*11
300	130	185	651	350	Φ325*12
* The above parameters are applicable to flange connection type vortex flowmeter with pressure resistance class of 1.6MPa.

SN53-

025

Detailed description

SN53-

SN53 Series Vortex Flow Sensor

Connection method

Flange connection type

Clamping type

Insertion type

Clamp type

Medium

Liquid

General gas

Saturated steam (temperature and pressure compensation recommended)

Superheated steam (temperature and pressure compensation recommended)

A thoroughfare

025

For calibre options, 025 stands for DN25 pipe (for special pipe
(Please consult sales engineer for special diameters)

Compressive

1.6MPa

2.5MPa

4.0MPa

Others

Operating temperature

Ordinary type: -20-100℃

Medium temperature type: 100-250℃

High temperature type: 250-350℃

Body Material

Stainless steel 304

Stainless steel 316L

Flange Material

Carbon steel

Stainless steel 304

Stainless steel 316L

Output signal

Local display, pulse signal output

Local display, analogue 4-20mA output

No local display, pulse signal output

No local display, analogue 4-20mA output

Communication method

0...

0:No communication 1:RS485 communication
2:HART communication

Converter type

Integral type

Split type: Separate meter body

Split type: flow totaliser without meter box

Digital processor (optional)

Explosion-proof requirements

1...

1:Normal type 2: Explosion-proof type

Power supply method

D...

D:24V A:24V+battery power supply C:battery power supply

Compensation method

Temperature compensation

Pressure Compensation

Temperature and pressure compensation at the same time

* The selection table is for parameter selection only and is shipped with the corresponding code for the parameter.

Shanghai Kayuan Electronic
Technology Co., Ltd.

Shanghai Kayuan Electronic Technology Co., Ltd is an enterprise specializing in the production and R&D of industrial fluid sensors and controllers. Its main products include switches and sensors for flow, pressure, temperature, and liquid level. In 2008, our assembly plant was established in Shanghai, China, to produce the PAKU series of products. We adopt advanced technology and manufacturing processes across the board. With our professional design and production technology, comprehensive product lines, excellent quality, and sales network services, we can not only provide users with timely and professional technical support but also offer high - quality one - stop services. The company has set up various departments such as the purchasing department, R & D department, quality management department, finance department, sales department, after - sales department, general office, laboratory, archive room, calibration workshop, production workshop, inspection area, storage area, shipping area, and a tea break room, aiming to provide products of excellent quality and sincere services. We adhere to the customer - centric concept of creating value for customers. According to the industry needs of customers, we continuously update technology and optimize services, aiming to become a leader in the field of process automation. PAKU products are now widely used in different industries, including automation complete sets of equipment, petroleum equipment, chemical equipment, power equipment, welding equipment, steel equipment, metallurgical equipment, automobiles, and water treatment. We have served many customers at home and abroad, and our products are sold to countries such as Canada, the United States, Brazil, Indonesia, Vietnam, Thailand, and Russia. In the increasingly competitive global market in the future, PAKU will, as always, serve a wide range of domestic and foreign customers with excellent quality, reasonable and competitive prices, on - time delivery, and perfect after - sales service. We welcome extensive cooperation with OEM and ODM customers.