H. IKEUCHI & CO., LTD.

Document No. KKS230325E

Daiichi Kyogyo Bldg.,1-15-15 Awaza, Nishi-ku,
Osaka 550-0011, Japan
http://www.kirinoikeuchi.co.jp/eng/

Product Discontinuation Notification in VNP Series
March 22, 2023

Dear Valued Customer,
This letter serves as notification that IKEUCHI has decided to discontinue the manufacturing of the VNP(BR) series on May 31, 2023 due to its production line renovation, and starts supplying new VNP (AL99)
series on April 1, 2023, which replaces the discontinued series. Please note that the VNP (BR) and theVNP (AL99) belong to the VNP Series.
While the new VNP (AL99) series has the same nozzle performance as the conventional VNP (BR)
series as described in the following pages, it is available with shorter lead times.
IKEUCHI always appreciates and values our business relationship and looks forward to your continued
interest in our product.

1. Model Numbers Affected
The model numbers boxed in the bold red lines below, VNP (BR) series, will be replaced by newly
designed VNP (AL99).
■Table 1: Excerpts from Catalog for VNP Series
Free passage
diameter (mm)of the new AL99
models (remainsthe same unlessspecified below)

1.0
1.2
1.2
1.3
1.4
1.6

1.0
1.2
1.3
1.4

1.4
1.5

p. 1 of 3

H. IKEUCHI & CO., LTD.

Document No. KKS230325E

2. Changes
The changes from VNP (BR) to VNP (AL99) are as follows.
■Table 2: Changes
Discontinued models
1/8M VNP (BR) , 1/4M VNP (BR)New models
1/8M VNP (AL99), 1/4M VNP (AL99)

Material of thenozzle tip orificeHigh-purity Alumina (AL92%)

High-purity Alumina (AL99%)

Color of the orifice

Black

Yellowish milky white

Product photo
Photo shows 1/8M VNP (R1/8 size)

Outer dimensions(Unit: mm)

Free passagediameters

p. 2 of 3

Due to the dimensional design changes, the free passage diameters for theVNP (AL99) differ from those for the VNP (BR) in some model numbers.
Please see Table 1 on the previous page for the model numbers whose freepassage diameters will be changed.

H. IKEUCHI & CO., LTD.

Document No. KKS230325E

3. Comparison in Nozzle Performance
As shown below, the nozzle performance of the VNP (AL99) series and the VNP (BR) series is equivalent.
■Table 3: Performance Comparison Between VNP (BR) and VNP (AL99)
Spray condition
Pressure(Discontinued)
1/8M VNP 2549
BR-S303

Spray capacity
Spray angle

Spray impact distribution

3 MPa
5.01 L/min
25°

打力(×10-2 N/cm)(SPRAY IMPACT)

Model No.

250200150100500100

Spray height

200 mmPressure

3 MPa

7550250255075

10075100

ノズル直下からの距離(mm)(DISTANCE FROM THE SPRAY CENTERLIINE)(New)
1/8M VNP 2549
AL99-S303

Spray capacity
Spray angle

5.02 L/min26°

打力(×10-2 N/cm)(SPRAY IMPACT)

250200150100500100

Spray height75200 mm

502502550

ノズル直下からの距離(mm)(DISTANCE FROM THE SPRAY CENTERLINE)

4. Pressure Resistance
The VNP (AL99) series has the same or higher pressure resistance than the VNP (BR) series.
Shown below are the results of the pressure test and the Vickers hardness of the ceramic tip orificematerials of the new and previous series.
Pressure Test
Test nozzle: 1/8M VNP 2549 AL99-S303
Test pressure: 22.5 MPa (1.5 times higher than the max. operating pressure of 15 MPa listed in ourcatalog)
Test description: Increase the pressure to 22.5 MPa using a hydrostatic pressure tester with the sprayorifice blocked, and confirm that the nozzle is not damaged.
Test result: No damage on the nozzle after pressurization to 22.5 MPaVickers hardness
Tip orifice material of VNP (BR) series: AL92% →1,000–1,200 kg/mm2
Tip orifice material of VNP (AL99) series: AL99% →1,800 kg/mm2(Test load 500g)
As shown, the VNP (AL99) series has the same or higher pressure resistance than the VNP (BR) series.

p. 3 of 3