Positive Displacement Flow Meters

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M-50C-8 SeriesCorrosion-Resistant Stainless Steel Positive Displacement Flow Meter

M-50C-8 SeriesCorrosion-Resistant Stainless Steel Positive Displacement Flow Meter – Acidic & Food Liquid Applications

In the field of industrial liquid measurement, the M-50C-8 Series Stainless Steel 304 Positive Displacement Flow Meter stands out for its durability, corrosion resistance, and high accuracy. Engineered from full 304 stainless steel, it is ideal for handling acidic liquids, fruit juices, distilled water, and other sensitive fluids. Its robust construction makes it suitable for factories, laboratories, food processing plants, and chemical processing environments.

The flow meter operates using two bladed displacement rotors and a central blocking rotor within three cylindrical chambers. The rotors rotate without metal-to-metal contact, minimizing wear over time. The central blocking rotor ensures a continuous seal between the unmeasured upstream liquid and the metered downstream liquid, guaranteeing precise measurement for every liter. The timing gears synchronize rotor movements, maintaining an accuracy of ±0.2%, even under high flow and pressure conditions.

The M-50C-8 Series is available in a standard model or with a mechanical ticket printer for on-demand flow recording. It features a flow range of 38–550 L/min, a volume per revolution of 0.681 L, and a maximum working pressure of 10 bar (150 psi). Measurement units include liters, US gallons, and Imperial gallons. Standard equipment includes the stainless steel meter body, stainless steel strainer, stainless steel air eliminator, and a mechanical register (optional printer). Customers should specify the type of liquid, working pressure, and temperature when ordering to ensure the correct configuration and accessories are provided.

Applications: This Class 8 flow meter is designed for acidic liquids such as nitric acid, phosphoric acid, glacial acetic acid, fruit juices, vinegar, and distilled water. It is also suitable for chemical reagents, precise food liquid dosing, and laboratory measurement.

Globally, this flow meter is known by various names: in the USA, it is called a Stainless Steel Positive Displacement Meter; in the UK, an Acid Liquid PD Meter; in Germany, Volumen-Durchflussmesser für saure Flüssigkeiten; in France, Débitmètre à Déplacement Positif pour Liquides Acides; in Japan, 酸性液体用正排気量流量計; in Egypt, عداد التدفق الإيجابي للسوائل الحمضية; in Nigeria, Acid-Resistant Positive Displacement Flow Meter; and in Iran, فلومتر جابجایی مثبت مقاوم اسید برای مایعات. These global variations reflect the widespread demand for high-precision, corrosion-resistant flow meters.

Whether for chemical processing, food production, or laboratory-grade fluid measurement, the M-50C-8 Series Positive Displacement Flow Meter delivers unmatched durability, precision, and versatility, providing a reliable solution for liquid measurement across industries worldwide.

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M-50C-8 Regular Type


M-50C-8 Regular Type with Mechanical Ticket Printer

M-50C-8 Positive Displacement Flow Meter, including the following equipment:

  1. Stainless Steel 304 Meter Body
  2. Stainless Steel 304 Strainer
  3. Stainless Steel 304 Air Eliminator
  4. Mechanical Register( with or without printer for option)

Technical Specification:

Model No

M-50C-8

Flow Range

38-550L/min

Volume/Rev.

0.681L

Accuracy

±0.2%

Standard Measurement

Liter/U.S.Gallon/lMP Gallon

Max.Pressure

10Bar/150PSl















Note: When placing an order with us, please inform us what liquid the flow meter will be used for, the working pressure, and working temperature, so that we can provide the correct additional equipment for this flow meter.

 Application:
Class 8 meter: Acidic pH Liquids, including nitric, phosphoric, and glacial acetic acids, fruit juices, vinegar, distilled water

Construction:



About Haibo
Zhejiang Haibo Petroleum Equipment Co., Ltd.

Zhejiang Haibo Petroleum Equipment Co., Ltd., established in 2017, is a certified enterprise located in Yongjia County, Wenzhou City, Zhejiang Province—recognized globally as the world’s largest manufacturing base for petroleum equipment and the well-known hometown of pumps and valves in China.
Our products are widely used in Fluid Control Systems, Energy Systems, Measurement Systems, Piping Systems, and Hydraulic Systems, serving petroleum companies, military units, oil depots, tank truck manufacturers, and petrol stations worldwide. Province—recognized globally as the world’s largest manufacturing base for petroleum equipment and the well-known hometown of pumps and valves in China.
At Haibo, we are backed by a team of senior industry experts with more than 20 years of professional experience in the petroleum equipment and fluid control sectors. Their deep technical knowledge and industry insight ensure that every product and solution we deliver meets the highest standards of quality, reliability, and performance.

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