**** Kimmon Flow Totalizer (Drip Meter) Discontinued **** Below the MICROSTREAM Flow meter is the new replacement.

MICROSTREAM Sensor / Meter OF Series

LOCAL INSTANTANEOUS FLOWMETER OF-ZAF,OF-ZZF / LOCAL INTEGRATING FLOWMETER OF-ZAQ,OF-ZZQ

MICROSTREAM Flow meter NEW

Instantaneous Flow-Rate Integrating Flow Volume Flow meter

Model: OF-WN (Local display type)
Model: OF-WP (With pulse output)

 

 Contact us: 817.946.0584 Contact

      Email us: 

 

 

Features

  • Built-in lithium batteries (No external power supply is required)

  • Indications of both instantaneous flow-rate and integrating flow volume by only 1 flow meter

  • Revolving display unit (It can be fixed to a easy-to-read position)

  • Simplified structure with the oval gears type measuring principle

  • Measurement of various liquids

  • Reset function for indications of Integrating Flow Volume (Total) and Integrating Flow Volume (Trip)

  • Value holding function for Instantaneous Flow-Rate indication

  • Pulse output function (Option)

Specifications

Instantaneous flow-rate・
Integrating flow volume
flow meter OF-WN Type		 OF05ZAWN OF10ZAWN
Instantaneous flow-rate・
Integrating flow volume
flow meter (with pulse output)
OF-WP Type		 OF05ZAWP OF10ZAWP
Flow-rate
range (m3/h)		 Fluid viscosity
0.3 ~ 0.8mPa·S		 0.085 ~ 0.85L/min 0.7 ~ 5L/min
0.8 ~ 2.0mPa·S 0.05 ~ 0.85L/min 0.35 ～ 5L/min
2.0 ~ 5.0mPa·S 0.017 ~ 0.85L/min 0.17 ～ 5L/min
5.0 ~ 200mPa·S 0.0085 ~ 0.85L/min 0.085 ~ 5L/min
Accuracy
(*1)		 Flow-rate indication ±2%RS±0.007L/min ±2% RS±0.04L/min
Volume indication ±2%RS
Measurable
fluids		 Various liquids Please select with reference to the following major materials
of the liquid-touching materials
Major fluids Water, hot water, kerosene, heavy oil
Max. working pressure 0.5MPa (at the time of fluid temperature of 20°C)
Pressure drop Not more than 4kPa Not more than 10kPa
Fluid temperature range 0 ~ +60°C
Output signal (for OF-WP)
  • Open drain output (Equivalent to open collector)
  • Pulse width: Not less than 5ms
  • Max. rating voltage: 30VDC
  • Output capacity: “ON resistance” Not more than 150Ω,
    “OFFresistance” Not less than 100kΩ (Remained voltage
    not more than 1.5V in case of input current not more than 10mA)
Pulse unit (for OF-WP) 10mL/p
Ambient temperature range 0 ~ +60°C 35 ~ 85%RH
(Dew condensation must be avoided)
LCD Flow-rate Smallest Scale 0.007L/min 0.04L/min
Display digits 0.000L/min 00.00L/min
Volume Smallest Scale 0.001L 0.01L
Display digits 00000.000L 000000.00L
Power supply Built-in lithium battery (Battery life 4 years. Not replaceable.)
Structure IP64 equivalent, Indoor installation
Connection R1/4 R1/2
Meter Weight Approx. 240g Approx. 260g
Major materials
of the liquid
touching parts		 Casing PPS
Rotor PPS
O-ring NBR
Pivot SUS304
Instantaneous flow-rate・
Integrating flow volume
flow meter OF-WN Type		 OF05ZZWN OF10ZZWN
Instantaneous flow-rate・
Integrating flow volume
flow meter (with pulse output)
OF-WP Type		 OF05ZZWP OF10ZZWP
Flow-rate
range (m3/h)		 Fluid viscosity
0.3 ~ 0.8mPa·S		 0.085 ~ 0.85L/min 0.7 ~ 5L/min
0.8 ~ 2.0mPa·S 0.05 ~ 0.85L/min 0.35 ~ 5L/min
2.0 ~ 5.0mPa·S 0.017 ~ 0.85L/min 0.17 ~ 5L/min
5.0 ~ 200mPa·S 0.0085 ~ 0.85L/min 0.085 ~ 5L/min
Accuracy
(*1)		 Flow-rate indication ±2%RS±0.007L/min ±2% RS±0.04L/min
Volume indication ±2%RS
Measurable
fluids		 Various liquids Please select with reference to the following major materials
of the liquid-touching materials
Major fluids Water, hot water, kerosene, heavy oil
Max. working pressure 0.5MPa (at the time of fluid temperature of 20°C)
Pressure drop Not more than 4kPa Not more than 10kPa
Fluid temperature range 0 ~ +60°C
Output signal (for OF-WP)
  • Open drain output (Equivalent to open collector)
  • Pulse width: Not less than 5ms
  • Max. rating voltage: 30VDC
  • Output capacity: “ON resistance” Not more than 150Ω,
    “OFFresistance” Not less than 100kΩ (Remained voltage
    not more than 1.5V in case of input current not more than 10mA)
Pulse unit (for OF-WP) 10mL/p
Ambient temperature range 0 ~ +60°C 35 ~ 85%RH
(Dew condensation must be avoided)
LCD Flow-rate Smallest Scale 0.007L/min 0.04L/min
Display digits 0.000L/min 00.00L/min
Volume Smallest Scale 0.001L 0.01L
Display digits 00000.000L 000000.00L
Power supply Built-in lithium battery (Battery life 4 years. Not replaceable.)
Structure IP64 equivalent, Indoor installation
Connection R1/4 R1/2
Meter Weight Approx. 240g Approx. 260g
Major materials
of the liquid
touching parts		 Casing PPS
Rotor PPS
O-ring FKM
Pivot SiC
  • In case there is possibility that any particle is flown in the liquid to be measured, please install a filter of not less than 80 meshes at the inlet side of the flowmeter.
  • Gasoline, Sodium hydroxide (Caustic soda), Hydrogen peroxide solution (Oxydol), and Hydrochloric acid are not applicable.
  • *1: With the standard installation position.

External dimensions

Model OF05 OF10
A(mm) 80 90
B(mm) 8 8.5
C(mm) 25 24

Standard installation position

Standard installation position

Materials - Abbreviations

PPS Polyphenylene Sulfide Resin
NBR Acrylonitrile-Butadiene Rubber
SUS304 Stainless Steel 304
FKM Fluoro Rubber
SiC Silicon Carbide Ceramic
Specifications are subject to change without notice.

NW(Locla display type),NW-P(With pulse output)

FLOW SENSOR WITH INDICATORS NEW

Instantaneous
Flow-rate Integrating
Flow Volume Flow meter

Model: NW (Local display type)
Model: NW-P (With pulse output)

Features

  • Built-in lithium batteries (No external power supply is required)
  • Indications of both instantaneous flow-rate and integrating flow volume by only 1 flow meter
  • Revolving display unit (It can be fixed to a easy-to-read position)
  • Simplified structure with the vane wheel type measuring principle
  • Measurement of various liquids
  • Reset function for indications of Integrating Flow Volume (Total) and Integrating Flow Volume (Trip)
  • Value holding function for Instantaneous Flow-Rate indication

  • Pulse output function (Option)

Specifications

Instantaneous flow-rate·
Integrating flow volume
flow meter NW Type		 NW05-NTN NW05-PTN NW05-TTN NW10-NTN
Instantaneous flow-rate·
Integrating flow volume
flow meter (with pulse output)
NW-P Type		 NW05-NTP NW05-PTP NW05-TTP NW10-NTP
Flow-rate range (m3/h) 0.3 – 3L/min 1.5 – 20L/min
Accuracy Flow-rate indication ±2%RS±0.05L/min ±2%
RS±0.2L/min
Volume indication ±2%RS (with the standard installation position)
Measurable fluids Various liquids (Please select with reference to
the following major materials of the liquid-touching materials)
Max. Working Pressure 1MPa (at the time of fluid temperature of 20°C)
Pressure Drop Not more than 12kPa
(At the time of 3L/min)		 Not more than
20kPa
(At the time of
20L/min)
Fluid viscosity range 0.5-1.5mPa・s
Fluid temperature range 0±60°C
Ambient temperature range 0±60°C 35-85%RH(Dew condensation must be avoided)
Output signal (for NW-P)
  • Open drain output (Equivalent to open collector)
  • Pulse width: Not less than 5ms
  • Max. rating voltage: 30VDC
  • Output capacity: “ON resistance” Not more than 150Ω,
    “OFFresistance” Not less than 100kΩ (Remained voltage
    not more than 1.5V in case of input current not more than 10mA)
Pulse unit (for NW-P) 10mL/p 1L/p
LCD Flow-rate Smallest Scale 0.05L/min 0.2L/min
Display digits 00.00L/min 000.0L/min
Volume Display digits 000000.00L 0000000.0L
Power supply Built-in lithium battery (Battery life 4 years. Not replaceable.)
Measurable fluids Refer to "MEASURABLE FLUID AND PARTS MATERIALS"
Structure IP64 equivalent, Indoor installation
Connection R1/2
Meter Weight Approx. 280g Approx. 250g
Major materials
of the liquid
touching parts		 Casing Denatured
PPO		 PP ETFE Denatured
PPO
Vane wheel POM ETFE POM
Pivot SUS304 PA ETFE SUS304
O-ring NBR FKM NBR
Magnet Sa-Co *1 Ba-Fe
Instantaneous flow-rate·
Integrating flow volume
flow meter NW Type		 NW10-PTN NW10-TTN NW20-NTN NW20-PTN
Instantaneous flow-rate·
Integrating flow volume
flow meter (with pulse output)
NW-P Type		 NW10-PTP NW10-TTP NW20-NTP NW20-PTP
Flow-rate range (m3/h) 1.5-20L/min 1.0-10L/min 3.0-60L/min
Accuracy Flow-rate indication ±2%RS±0.2L/min ±2% RS±0.5L/min
Volume indication ±%RS (with the standard installation position)
Measurable fluids Various liquids (Please select with reference to
the following major materials of the liquid-touching materials)
Max. Working Pressure 1MPa (at the time of fluid temperature of 20°C)
Pressure Drop Not more than
20kPa
(At the time of
20L/min)		 Not more than
15kPa
(At the time of
10L/min)		 Not more than 60kPa
(At the time of 60L/min)
Fluid viscosity range 0.5-1.5mPa·s
Fluid temperature range 0±60°C
Ambient temperature range 0±60°C 35-85%RH(Dew condensation must be avoided)
Output signal (for NW-P)
  • Open drain output (Equivalent to open collector)
  • Pulse width: Not less than 5ms
  • Max. rating voltage: 30VDC
  • Output capacity: “ON resistance” Not more than 150Ω,
    “OFF resistance” Not less than 100kΩ (Remained voltage
    not more than 1.5V in case of input current not more than 10mA)
Pulse unit (for NW-P) 1L/p
LCD Flow-rate Smallest Scale 0.2L/min 0.5L/min
Display digits 000.0L/min
Volume Display digits 0000000.0L
Power supply Built-in lithium battery (Battery life 4 years. Not replaceable.)
Measurable fluids Refer to "MEASURABLE FLUID AND PARTS MATERIALS"
Structure IP64 equivalent, Indoor installation
Connection R1/2 R3/4
Meter Weight Approx. 250g Approx. 500g
Major materials
of the liquid
touching parts		 Casing PP ETFE Denatured
PPO		 PP
Vane wheel POM ETFE POM
Pivot SUS304 ETFE SUS304
O-ring FKM NBR FKM
Magnet Ba-Fe Sa-Co *1 Ba-Fe
  • Any installation position other than the standard installation position is not available for NW05-TTN, NW05-TTP, NW10-TTN, and NW10-TTP.
  • *1: The magnet does not touch liquid.

External dimensions

Mode NW05 NW10 NW20
A(mm) 80 80 110
B(mm) 87 87 105.5
C(mm) 52 52 74
D(mm) 11 11 16
E(mm) 25 25 35.5

dimension Drawing

Standard installation position

Standard installation position
The standard installation position is that the display is facing upwards.

* The display is able to be revolved.

Materials -Abbreviations

Denatured PPO Denatured Polyphenylene oxide
PP Polypropylene
ETFE Ethylene-tetrafiuoro ethylene
POM Polyacetal or Polyoxymethylene
SUS304 Stainless steel 304
PA Polyamide
NBR Acrylonitrile-Butadiene Rubber
FKM Fluoro Rubber
Sa-Co Samarium-Cobalt
Ba-Fe Barium-ferrite
Specifications are subject to change without notice.

 

Kimmon Flow Totalizer (Drip Meter) Discontinued
   
Even drips can be measured with high accuracy    

1. Introduction

The central heating system lately popularized for home heating depend mostly on the method to supply hot water through a boiler using kerosene as a fuel.

In an apartment house, the fuel oil is pumped up from underground tank to roof tank and then fed to a service tank of each home by natural downstream force. The fuel oil in the service tank is to be fed afterward to the burner of a boiler with head difference of around 2 meters (6-feet). The capacity of the service tank is less than 30 liters and the flow rate is so small as 0.5 to 10 liter/h. In order to measure the fuel consumption of each home, accordingly, there is no other way to measure the practical feeding quantity of fuel by means of oil meter between the service tank and the hot-water boiler.

Flow meter NDR-6W (so called the drip meter) is developed for the purpose of measuring such small flow of fuel oil and is characterized by Japan's first oil measuring meter. This meter can be applied to a wide variety of fluids required very small amount measured such as water analysis for nuclear reactors, greenhouse heating systems, small size boilers and diesel engines, and etc.

2. Construction and principle of operation

The diaphragm chamber of this meter consist of  two aluminum boxes facing in parallel and each of them is divided with a diaphragm into two sections.  The respective sections are assembled at a phase difference of some 90° and connected with the inlet or the outlet by the valve which alternates the fuel route sliding on the valve seat. The new fluid, entering one section, is to press the diaphragm and send out the old fluid in the opposite section.

At the dead point, the section connected with the outlet will be replaced to the inlet and the diaphragm is to move in the contrary direction. This reciprocating diaphragm movement is  is converted with a link to a rotational movement that turns the registration mechanism indicating the volume passed. 

3. Features

  • Head Loss is very low: Conventional piston type and single-valve type flow meters have suffered from high head loss (for instance, over 200 mmAq at a rate of 20 l/h in case of kerosene) which often caused the interruption of fuel feeding because of air collected in the piping could not be sufficiently exhausted.  the head loss of this  flow meter (NDR-6W), meanwhile, is so small as only 25 mmAq at the rate 20 l/h in the same case. This characteristic  performance raises to a maximum the exhaust effect and reduces to a minimum the interruption of fuel feeding.
  • Dust does not effect: In the piston type flow meters, dust tends to impede  the motion of piston being collected in the gap scarcely left between the piston and the cylinder and besides at a piston ring in use, so that strainer is indispensable to check the entrance of dust. The NDR-6W and separate inner-mechanism, however, no strainer is generally required because the dust is to settle down outside the diaphragm sections so as not to affect the measuring mechanism.
  • Water does not affect (in case of fuel measuring): In the piston type flow meters, the water may rust the piston or freeze in winter, but the NDR-6W separate inner-mechanism the water never affects the measuring mechanism even if it is frozen because it is collected outside the diaphragm sections and later it is discharged through the drain hole. If it should happen the meter filled with water by mistake, the meter must be dismantled from the line and turned upside down so the water will be drained from all parts of  the meter.

4. Kinds of fluid to be measured

The DR-6 is actual production is designed for measuring kerosene but it is also available for light or heavy oil, machine oil, spindle oil and engine oil etc. Alcohol, ethylene glycol and others, in addition can also be applied by changing the material of some parts, so that any reference is willing to be received in company with data  on the kind  of fluid required, the oiliness and the working temperature, and etc.

 

5. Characteristics of registration accuracy

Owing the special design of this meter for extra small flow, the speed of revolving part is extremely slow paste, that is measuring mechanism makes 50 revolutions per hour at a rate of 20 l/h which is equivalent to only 0.8 revolution per minute. Accordingly, the force necessary to overcome the fluid resistance and diaphragm distortion resistance, namely, the difference between the pressures to be applied upon both sides of diaphragm is very small, and so the registration accuracy will hardly be affected even by the change of fluid resistance which depends on the kind of fluid. The oiliness of the fluid to be measured, however, will somewhat affect mechanical resistance. In case of the fluid of lower oiliness such as water, the registration will be a bit less than the practical value by certain increase of mechanical resistance. On the other hand, in case of the fluid of higher oiliness such as machine oil and the engine oil, the registration accuracy will hardly be affected in comparison with case of kerosene, though the mechanical resistance will slightly decrease.

Meanwhile, the mechanical resistance so small as under 20 mmAq enables oil layer to remain at all times between the valve  and the valve seat, which prevents  and leakage from the gap and consequently the registration accuracy maintained stable unlike the other flow meters so as not to be affected by change  of gap flow which depends on the kind of oil.

 

6. Accuracy and minimum flow

  • Accuracy: Plus of minus 1% of actual flow within specified range.

  • Minimum flow: The minimum flow is 5 liters, that is accuracy of ±1% will be kept up when the flow more than 5 liters measured. It shall be taken  into account that the accurate  value  will be lost in case of the flow less  than 5 liters.

7. Fluctuation by temperature

the fluctuation of  the instrumental error  and head loss  to be caused by the variation of temperature  between +20°C and -20°C shall not exceed 1.0% and 10 mmAq respectively.

 

8. Loss of head

The loss of head for some fluid  is listed below.

Fluid Viscosity Maximum flow rate (liters/h) Head loss max. flow rate (mmAq)
Water 1 20 45
Gasoline 0.7 20 40
Kerosene 1.1 20 55
Heavy Oil 10 15 75
Engine Oil 321 10 130

 

9. Working flow range

The determination of working flow range for each kind of oil depends on the permissible head loss and flatness of instrumental performance curve. The date on kerosene indicates that the accuracy in working of ±1% is adaptive up to 50 l/h in view of the flatness  of instrumental performance curve. Also for the fluid more viscosity, the metering accuracy of ±1% will be adaptive up to 50 l/h, if whole feeding system is not affected by increase of head loss. In case of minimum flow, meanwhile, no internal leakage will be caused and so it is possible to measure as low as 0.1 l/h.

 

10. Effect of electromagnetic valve

The oil feeding to a boiler will be controlled quickly by the opening or closing of electromagnetic valve, which effects on the instrumental error come out s follows:

  • No difference  of instrumental error is recognized between the non operational of electromagnetic valve and continuous operation of the same intervals of around two seconds.

  • No difference  of instrumental error is recognized between before the operation of electromagnetic valve and after its operation of 300,000 cycles.

 

11. Durability

The oil had been experimentally passed through the meter at the rate of 20 l/h every day over two years which total flow reached more than 20 kl. And every month during its term the registration accuracy had been checked at the rate of 0.5 l/h, 5 l/h, and 20 l/h respectively and its results demonstrated the accuracy within  ±1% in all cases.

 

12. Connection

    Connection: 8mm (15A gas pipe or 8mm copper pipe), Adaptors accept 1/8" male NPT fitting

Standard specifications

Flow Range: 0.1L/h - 20L/h

Maximum working pressure: 0.1MPa (1.0kgf/cm²) (1 atm)

Maximum working temperature: 45°C

Accuracy: Within ±±1.5% (4L/h to 20L/h)

Maximum registration: 99999.99 liter

Minimum Registration: 0.00% L

Minimum scale: 0.02 liter

Weight: 1.3 kg

Inlet: Left

Inside diameter: 8 mm

Connection: 8mm (15A gas pipe or 8mm copper pipe), Adaptors accept 1/8" male NPT fitting

Measuring flow range

Fluid Viscosity Flow range (liters/h)
Water 1 0.1 ~ 20
Gasoline 0.7 0.1 ~ 20
Kerosene 1.1 0.1 ~ 20
Heavy Oil 10 0.1 ~ 15
Engine Oil 321 0.1 ~ 10

200-BC2

Model 200-BC2
 

Corrosion Product Samplers

Corrosion Product Sampling
Product Description
Applications
Features

 
 

 

Corrosion Product Sampling

 
In addition to the impact of corrosion on the performance and reliability of power cycle components such as feedwater heaters and condensers, release of corrosion products from such components and their deposition in turbines and steam generating equipment frequently has led to losses of power generating capability at fossil and nuclear power plants. Since grab sampling and analysis approaches generally will not yield accurate concentration data because of the nature of the corrosion product transport process, application of integrating sampling techniques is mandatory if corrosion product transport and deposition rates are to be quantified (NP-5056-SR).
 

 

Product Description
Single and dual channel corrosion product samplers, each available with or without sample coolers. Additionally, all samplers include bypass flow capability. This configuration, as illustrated in Figure 1, provides the ability to process a sample from any point in the cycle while maintaining a high sample line Reynolds number via the bypass system.

A 0.45 mm filter is generally used to collect filterable species from a continuous sample flow with a cation ion exchange membrane inserted below the filter to collect soluble cationic species and possibly colloidal species passing through the 0.45 mm filter.

With a sample flow of 100 ml/min for 24 hours, the membrane packet accumulates the impurities present in a 144-liter sample. Pressure regulation is provided to maintain a constant sample flow as the pressure drop across the membranes increases with time. The flow Totalizer furnishes an accurate value for the total sample volume of the period.

 

Applications

 
As stated in the PWR Secondary Water Chemistry Guidelines (EPRI NP-5056-SR): “This sample collection method allows long-term averaging of corrosion product concentrations thereby providing a firm basis for performing mass balances around specific components, e.g., it is possible to identify major sources of corrosion products within the feedwater system.”

 

Features

 
  • High bypass flow capability (up to 2.2 liters/min.).
     
  • Pressure regulation downstream of the filter holder to maintain constant sample flow. As a result, constant sample flow is assured as the differential pressure across the filter membranes increases with time.
     
  • Sample flow totalizing (mechanical with ±3.0% accuracy).
     
  • Samplers provided in cabinets with clearly illustrated flow schematic on panel.
     
  • Sample inlet conditions: up to 3000 psig and 500°F (110°F on samplers without coolers); higher-pressure and temperature capability available on request.
     
  • Filter holder connections are Cajon® VCO fittings for easy use and long life.
     
  • Inlet and outlet connections are located on a rear bulkhead panel.
     
  • Rack-mountable models are available.
     
  • All fittings and valves are Swagelok® family components.
     
  • When a sampler is supplied with cooling capability, the cooler(s) are mounted inside the cabinet and connected with stainless steel tubing to 1/2" Swagelok® bulkhead fittings on a rear panel ready for connection to the cooling water supply.
     
  • Samplers do not require electrical power. This eliminates the need to install an electrical supply or to be concerned with battery replacement.
     
  • Sampler can be easily connected to analyzers downstream.
     
  • A high temperature, high-pressure inlet isolation valve is provided on the panel. Hence, other than the process root valve, no other isolation valves are needed. This conforms to recommended corrosion product sampling practice, e.g. minimize the number of valves between the process stream and the filter housing.
     
  • All valves, regulators and fittings are stainless steel (Type 316). All tubing is seamless SA-213 Type 304 stainless steel.
     
  • Filter inlet isolation is accomplished with a 1/4 turn Whitey® Series 33 ball valve.
     
  • Samplers are mounted in painted steel cabinets with side handholds.
     
  • Approximate cabinet sizes and weights for the current models are as follows:
     
    100 Series: 10-7/8”W x 15-3/4”H x 14-1/2”D;
    51 lbs with cooler; 35 lbs without cooler
    200 Series: 20-3/8”W x 15-3/4”H x 14-1/2”D;
    100 lbs with coolers; 68 lbs without coolers