F311 195 mm M Size Patented Dual-indicator Flowmeter

Experience the ultimate ease of installation with turning processing – no leaks, effortless adjustment and positioning, a rock-solid flow field, compact size for space-saving installation, our patented dual-pointer design, laser-engraved scale for enhanced flow monitoring convenience!

Brand: LORRIC
Adapter size: 1/2", 3/4", 1"
Applicable fluid: Tap water (PC)/ Unique acid-base solution (PSU)
Working pressure: 5.0kg/cm²
Full Scale Accuracy:5% F.S.
Material: Body-PC, PSU; Float-SS316
 
 

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Principle

The area flow meter calculates flow rates by equating the upward thrust of the fluid, caused by variations in pipe diameter cross-sectional area, with the force of gravity acting on the float from below.

Principle
Patented dual-indicator

Patented dual-indicator

From the user's perspective, LORRIC employs a dual-pointer design to monitor upper and lower limit intervals, enabling users to easily identify the flow status at a glance. Users can simply flick the pointer to instantly set the flow monitoring range.

Laser engraved degree scales

LORRIC precisely calibrates each flow meter at the factory to compensate for float weight variations, ensuring ultimate performance. Unlike competitors using mass printing or stickers, our laser engraving offers both accuracy and durability.

Laser engraved degree scales
Flowmeter scale customization

Flowmeter scale customization

Chemicals vary in specific gravity, affecting float buoyancy. LORRIC offers tailored customization for specific gravity, eliminating the need for on-site height adjustments.

Delicate machining for float

LORRIC leverages 30 years of industry expertise, applying fluid mechanics to refine float design. Using precision CNC machining, each float is crafted with jewelry-like precision, guaranteeing stable monitoring for area flow meters.

Delicate machining for float
The unique turning-processed joint, ensuring smooth installation and insertion

The unique turning-processed joint, ensuring smooth installation and insertion

Don't settle for subpar joints! While most are injection-molded, resulting in uneven surfaces due to cooling shrinkage, LORRIC's original turning-processed joints offer unmatched quality. With a flawlessly smooth surface, O-ring seal for safety, and zero leakage, choose LORRIC for superior performance!

The flat joint surface ensures O-ring seal without leakage

Don't settle for subpar joints! While most are injection-molded, resulting in uneven surfaces due to cooling shrinkage, LORRIC's original turning-processed joints offer unmatched quality. With a flawlessly smooth surface, O-ring seal for safety, and zero leakage, choose LORRIC for superior performance!

 
The flat joint surface ensures O-ring seal without leakage
Guide Rail Design

Guide Rail Design

The guide rail design effectively limits the movement of the float within the pipe, reducing turbulence-induced oscillation or rotation. This design enhances measurement precision by ensuring the float remains aligned along the flow meter's axis, contrasting with models lacking a guide rod which may lead to off-axis float movement and impact flow rate accuracy.

Please place your order according below information

F22
How to place an order for LORRIC flowmeters?
  • Select the ideal flow meter based on your material requirements for each component.
  • Please refer to following order example for placing order to LORRIC.
F311 SPEC
Series F311 PSU
Applicable Fluid Chemical and Non-organic Solvents 
Body Material PSU
Float Material AISI 316
Guide Rod Material
O-ring Materia
EPDM / VITON
Union Nuts Material UPVC
Guide Rod Bottom Material PP
Scale Rang
(L/min)
23 - 80 L/min
20 - 100 L/min
Adaptor Size and Adaptor Material
1/2"
Male Thread BSPT UPVC / PVDF
NPT UPVC / PVDF
Female Thread BSPT UPVC / PVDF
NPT UPVC / PVDF
Socket CNS UPVC
JIS UPVC
ANS UPVC
DIN UPVC
Butt Weld ISO  PPH / PVDF 
Socket Weld ISO PPH / PVDF 
Adaptor Size and Adaptor Material
1"
Male Thread BSPT UPVC / PVDF
NPT UPVC / PVDF
Female Thread BSPT UPVC / PVDF
NPT UPVC / PVDF
Socket CNS UPVC
JIS UPVC
ANS UPVC
DIN UPVC
Butt Weld ISO  PPH / PVDF 
Socket Weld ISO PPH / PVDF 
Adaptor Size and Adaptor Material
3/4"
Male Thread BSPT UPVC / PVDF
NPT UPVC / PVDF
Female Thread BSPT UPVC / PVDF
NPT UPVC / PVDF
Socket CNS UPVC
JIS UPVC
ANS UPVC
DIN UPVC
Butt Weld  ISO PPH / PVDF 
Socket Weld  ISO PPH / PVDF 
  • Liquid flow meters are calibrated for 20°C water. Gas flow meters are calibrated for normal conditions. ( 0°C , 1 atm)
  • All adaptors can be manufactured to order, please contact us for price and lead time. Specs: adaptor 1/2" NPT male/ female thread (UPVC / PP / PSU) type is custom made, please contact us for details. Please refer to the chemical resistance chart for understanding if our flowmeters body and parts are acceptable for your solution.
  • Above temperature information is for reference only and may not be applicable for all environments.
  • Above flow rate range and materials is for standard specs. Please choose proper products according to your usage and environment conditions. You are welcome to contact us directly for any requests and advice.
  • Our company refrains from offering model recommendations or suggestions, as diverse industries have unique application scopes and design conditions. We encourage you to select the most suitable model based on your specific design conditions.
 

Product Size

Unit:mm

Adapter Spec A B C D E Butt-fusion
Adaptor(g)

1"Male Thread 211 93 59 61 67

190
1"Female Thread 210 93 58.5 61 67
1"CNS 197 93 52 61 67
1"ASTM 197 93 52 61 67
1"JIS 196 93 51.5 61 67
3/4"Male Thread 197 93 52 61 67
3/4"Female Thread 212 93 59.5 61 67
3/4"CNS 200 93 53.5 61 67
3/4"ASTM 192 93 41 61 67
3/4"JIS 200 93 53.5 61 67
3/4"DIN 200 93 53.5 61 67
3/4"DIN Thick pipe wall 196 93 42 61 67
3/4"JIS MIN 193 93 50 61 67
1/2"ASTM 192 93 49.5 61 67
1/2"JIS 190 93 48.5 61 67
1/2"DIN 190 93 48.5 61 67
PP OD33
ID25.2
194 93 50.5 61 67
 

Three easy steps! Effortlessly install the rotameter!

Step1
Step1

Ensure the main line is vertically installed and that there is ample space to accommodate the flow meter size.

Step2
Step2

Loosen the upper and lower interfaces, including the nuts, and affix them to the pipe using adhesive until the glue sets.

Step3
Step3

Position the body in the center and secure the upper and lower unions.

 

Applications
Wastewater Treatment

Wastewater Treatment

Flow meters monitor the flow of inlet and outlet water, enhancing treatment efficiency and accuracy; nzzles spray chemicals in wastewater treatment, meeting environmental standards

Purified Water Industries

Purified Water Industries

Flow meters monitor water usage at each stage to control process efficiency; nozzles optimize water spray to ensure water purification efficiency and reduce treatment costs

  • Cleaning: Containers, Filters, Dust, Gravel, Metals, Metal Parts, Machinery, Various Containers, High Pressure Cleaning, Wet Processing Display Pane, machine tool cleaning, etc.
  • Cooling: gas, tank, machinery, roof etc.
  • Dispersion: Humidifying, Chemicals (etching solution, lubricants, insect repellent, etc.), water curtain (fire, dust, deodorization etc.).

Working with sulfuric acid, caustic soda, or unique specialty chemicals? Explore our tailored specific gravity scale customization services

Diverse chemicals, varying specific gravity. LORRIC offers bespoke specific gravity customization to match your chemical needs. No more on-site manual height adjustments!

Working with sulfuric acid, caustic soda, or unique specialty chemicals? Explore our tailored specific gravity scale customization services

What we customize

  • Different measure unit (LPM, LPH, CMPM and more)
  • Main and secondary scale
  • Different liquid proportion
  • Different gas molecular weights
  • Different measuring ranges
What we customize

Customizing Flow Meter Scales: A Step-by-Step Guide

  • Range of customized flow capacity should be stayed within the capacity of existing products.
  • Customizable capacity will be affected by customization of proportion and viscosity, please contact us directly for this service.
  • To customize too compressed flow scales is not suggested, and leads difficulty of on-site observation

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