• Nutating disc meter RCDL nickel coated

Nutating disc meter RCDL nickel coated

for clean and moderately dirty fluids

 

  • Compatible with many liquids
  • Low pressure loss
  • Light weight
  • Magnetic coupling
  • Wide flow range
Medium:
Water, Liquid food, Oil, Chemical/Petrochemical media, Pharmaceutical media
max. flow:
from 1 up to 643 l/min
Temperature:
from 0 up to 120 °C
max. pressure:
from 0 up to 16 bar
Branch:
Water & waste water industry, Food & beverage industry, Chemical industry, Oil industry, General industry, Pharmaceutical industry

 

General information

The Recordall® series is a positive displacement meter. The series is best suited for metering fluids up to a viscosity of 700 mPas and at an operating temperature of 50°C up to 120°C. 
Typical applications are: Clean and moderately dirty liquids, hard and soft water, oils, fuel, solvents, etc.

The metering chamber includes disc, positioning bar and transmission magnet. The chamber is inserted into the meter body. A screen in the inlet side of the body protects the chamber against penetration of larger solid particles.

Technical data

Technical data          
Type M 25 M 35 M 70 M 120 M 170
Size DN 15, 20 20 25 40 50
Nominal pressure PN 16 16 16 16 16
Max. temperature (PPO) 50 °C 50 °C 50 °C 50 °C 50 °C
Max. temperature (Vectra) 120 °C - 120 °C 120 °C -
Flow range l/min (PPO) 1 – 100 2 – 132 4 – 265 8 – 454 8 – 643
Flow range l/min (Vectra) 3 – 100 - 19 – 265 18 – 454 -
Accuracy (1:10) ±0,5 % ±0,5 % ±0,5 % ±0,5 % ±0,5 %
Accuracy (total range) ±1,5 % ±1,5 % ±1,5 % ±1,5 % ±1,5 %
Weight 1,8 kg 2,7 kg 5,5 kg 10,5 kg 13,6 kg
Dimensions (mm)          
Type M 25 M 35 M70 M120 M170
Connection R ¾“, 1“ R 1“ R 1 – ¼“ 1 – ½“ NPT 2“ NPT
Lay length 190 230 270 321 387
Width 122 133 184 223 240
Materials          
Type M 25 M 35 M70 M120 M170
Housing Bronze Buna / Viton Buna / Viton Buna / Viton Buna / Viton
Measuring chamber PPO / Vectra PPO PPO / Vectra PPO / Vectra PPO
O-rings Buna / Viton Buna Buna / Viton Buna / Viton Buna
Retainer strap (PPO) Nylon Nylon Nylon Nylon Nylon
Retainer strap (Vectra) Stainless steel 316 / 316 S/S Stainless steel 316 / 316 S/S Stainless steel 316 / 316 S/S Stainless steel 316 / 316 S/S Stainless steel 316 / 316 S/S
Screen PPO PPO PPO PPO PPO
Bottom (PPO) Cast iron Cast iron Cast iron Cast iron Cast iron
Bottom (Vectra) Bronze Bronze Bronze Bronze Bronze
Retainer ring - - - - -
Magnet Barium/Ferrite Barium/Ferrite Barium/Ferrite Barium/Ferrite Barium/Ferrite
Crossbar Nylon Nylon Nylon Nylon Nylon
Thrust roller Nylon Nylon Nylon Nylon Nylon
Roller insert Stainless steel 316 / 316 S/S Stainless steel 316 / 316 S/S Stainless steel 316 / 316 S/S Stainless steel 316 / 316 S/S Stainless steel 316 / 316 S/S
 

 

Measuring principle

Nutating disc meters


Nutating disc meters

Nutating disc meters are positive displacement meters. The top and lower part of the meter chamber are cone shaped. A ball bearing centralizes the disc between the two cones. A nutating motion of the disc is generated when flow enters the meter chamber. Complete separation between inlet and outlet chamber volumes is always achieved by one dedicated disc diameter line. The inlet and outlet parts of the meter chamber are separated by a partition plate. The positioning bar forces the disc to nutate around the center axis of the chamber, driving the transmission magnet.