SI-3205 Threaded Connection Turbine Flow Meter

Threaded installation is a common method for small-diameter turbine flow meters. The SI-3205 Threaded Connection Turbine Flow Meter offers high accuracy, typically ±1%R or ±0.5%R, with a high-precision model reaching ±0.2%R. Threaded installation is available for sizes from DN2 to DN100.

Diameter	DN2～DN100
Accuracy	0.5% or 1.0% of Reading
Temp. range	-200～+180℃
Pressure	1.6 MPa
protection	IP65, IP68
Output	Pulse, 4-20mA analog output, RS485 (Modbus-RTU protocol), HART

RFQ

Features

• In-line digital flow meter sensor
• Standard thread G standard, or other thread is available, such NPT thread
• High accuracy: 0.5% or 1.0% of Reading
• Large turn down ratio: 10:1
• Compact construction
• Material: 304 or 316 stainless steel, all stainless steel flow meter
• Low price cost digital liquid flow meter
• Volumetric flow meter

Specifications

Flow range

Dimensions

Notice: Other thread criteria is available on request. (Female/Male thread is Optional for G, NPT, BSP)

Order Guide

In addition to regular products, we support customization

SI-3205  DN50  E2  10   S  S4  BT  D16  T2

①   ②  ③  ④  ⑤  ⑥  ⑦  ⑧

① Diameter：DN50

② E2：24VDC，Pulse and 4-20mA output，RS485，Digital display，EX

③ 10：1.0% of rate accuracy

④ S：Standard range 4-40m³/h

⑤ S4：SS304 Body Material

⑥ BT：Exd II BT6

⑦ D16：Flange DIN PN16

⑧ T2：-20～+120℃

About Threaded Connections

What is a threaded connection? It’s a connection method where external and internal threads mesh to achieve fastening and sealing. The sealing method involves a tight connection between the internal threaded hole and the external threaded post.

Sealing methods are divided into: threaded sealing and end-face sealing.

Threaded sealing refers to the tightening of the internal and external threads using a spiral sealant (such as PTFE tape) or thread sealant to fill the small gaps between the threads to achieve a seal.

End-face sealing refers to using a gasket or O-ring placed between the threads or at the bottom of the threaded component to ensure a tight seal.

Sino-Inst offers the following thread types: G threads, M threads, NTP threads, spherical threads, etc.

G-thread: A type of imperial thread, widely used primarily because it uses the imperial unit “inch,” one inch equals 25.4 mm.

M-thread: A thread standard defined by the International Organization for Standardization (ISO), also known as ISO thread, with the unit of measurement being mm.

NTP thread: The most commonly used pipe thread standard in the United States, used for pipe and fitting connections. It features a tapered design with a 60° thread angle. Note that the unit for NTP threads is also “inch.”

Spherical thread: A special type of thread with a spherical thread shape. Spherical threads are typically used to connect parts with spherical interfaces, such as ball valves and ball joints. The shape of the spherical thread makes the connection tighter and provides higher sealing performance.

Thread Application Scope

Threaded connections are suitable for many field environments. We will explain the suitable environments for threads from the following perspectives:

First, Instrument Diameter:

External thread connections are generally used to connect larger pipes, providing a secure connection. Internal thread connections are mainly used to connect and secure smaller pipes.

DN50 is a threshold, DN80 is another threshold, and anything below 50 (including 50) can be made into internal, external, and spherical threads. DN50-DN80 can be made into external threads, but internal threads are not recommended.

Second, Pressure:

The selection of thread pressure is complex and can be referenced to the national standard (GB/T 19215.1-2003). Our current pressure standards are: external threads: 6.3 MPa; internal threads: 1.6 MPa; spherical threads: 16 MPa.

Third, Material:

Thread materials can be 304 and 316 stainless steel, PE (maximum pressure resistance 1.6 MPa, not suitable for spherical threads), and other metal materials.

Applications

Threaded turbine flowmeter is a kind of precision measuring instrument. It adopts advanced micro-processing technology,and has the characteristics of strong function, wide flow range, simple operation and convenient installation and use.

The turbine flowmeters, which are widely used in petroleum, chemical, metallurgical, scientific research and other fields, and equipped with sanitary joints, are mostly used in the pharmaceutical field.

Techincal Support

Threaded turbine flow meters are relatively easy to install and suitable for situations requiring quick connection and maintenance. They are typically used for small-diameter pipelines. Sino-Inst will recommend different threads for different operating conditions. For example, threaded connections are suitable for low-pressure or normal-pressure pipelines, and should be avoided in high-pressure pipeline systems. For high-pressure pipelines, spherical threads can be selected.

Sino-Inst has many years of experience in the production and installation of turbine flow meters. Our turbine flow meters are exported to Singapore, the United States, Indonesia, and other countries, and are used in factories across various industries. Please feel free to contact our sales engineers for customization!

Zhang Wei

Zhang Wei, possesses 20 years of experience as an automation instrumentation engineer, specializing in the research, design, installation, commissioning, and maintenance of automation instruments.

Face to various instrument communication protocols (such as Modbus, Profibus, etc.), with solid hardware circuit design and software programming skills (proficient in C language and PLC programming). Has extensive project experience; projects he has led and participated in have all achieved outstanding results, improving product accuracy, reducing costs, and increasing production efficiency.

Possesses excellent communication and coordination skills and a strong team spirit, enabling him to quickly respond to customer needs and provide high-quality automation instrumentation solutions.