NISSAN TANAKA Prince Changer Semi-automatic Switching Device

Manufacturer: Nissan Tanaka

Prince Changer for general industrial gases

Features

  • Automatically switch between left and right gas supply lines for continuous, long-term gas supply.
  • When using the optional pressure gauge with contacts and Prince Alarm alarm device, you can be notified of low pressure in the supply line through a buzzer and lamp.
  • We offer two types, for assembly equipment and wall-mounted use, so you can choose the most suitable option depending on your installation location.

Flow characteristics

Specifications

Product name Model Gas Type Maximum Flow Range
(L/min(nor)) 
Operating Temperature
Range (°C)
Pressure Gauge (MPa) Maximum Operating Pressure (MPa) Switching Pressure Inlet and Outlet Shapes Weight
(kg)
Inlet Side Outlet Side Inlet Side Outlet Side Inlet Side Outlet Side
Wall-Mounted Prince Changer 930NA

O2
N2
Ar
He

120(P3=0.3MPa) -5~40 25 1.0 15 0.5 0.65~0.95 Rc1/4 Rc1/4 4.6
930NB 100(P3=0.2MPa 0.3 0.2
Integrated Systems Prince Changer 930MA 120(P3=0.3MPa) 1.0 0.5 W22-14
mounting nut
930MB 100(P3=0.2MPa 0.3 0.5
Material Composition Main body Diaphragm Filter Other gas connection parts
C3604,C3771 NR bronze sintering C3604, SUS304, Fluororesin

※ Normal flow rate is the value when the gas is flowing..
※ Wall-mounted type 930NB is made to order.
※ We also offer supply frame fabrication. Please consult our sales representative.
※ We can also provide pressure gauges with contacts for flammable gases. Please consult our sales representative.
※ If the supplied flow rate exceeds the upper limit of the specified flow range, gas may be supplied from both systems.

External View

930MA

930NA

Optional Feature

Pressure gauge with electrical contacts

Full Scale: 25MPa
Size: Ø75mm
Connection Type: G1/4
Gas Contact Metal Material: Brass
Lower Limit Set Pressure = 1.5MPa
Load Allowance: 0.2A or less
Contact Power Supply: AC100V

Alarm Panel (Prince Alarm)

Prince Alarm 930AP
※ We can also design the alarm panel according to your requirements.
※ Please inquire for more details.

Product lineup

<PC Series>

  • For general industrial gases
  • Low pressure, high flow rate type. We offer a medium pressure (0.7MPa) supply type.

<Stainless Changer>

  • For standard gases, high-purity gases, and laser gases.
  • The gas contact parts are made of stainless steel, aiming for purity retention performance.
  • We offer both low-pressure type and medium-pressure (0.7MPa) supply types.

⚠️Warning: To ensure proper usage, please be sure to read the “instruction manual” thoroughly before using.

This product may undergo changes in specifications and other details for improvement purposes without prior notice.


Kouei is Distributor/Agent of Nissan Tanaka
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