▶ Special Feature 

● Fast Acting Solenoid Control

● Double Chamber Structure for Safe Control

● Easy Installation and Maintenance

● Smooth Operation without Water Hammering

    Model 138-020 consists of Basic Valve(BALEM 130), Solenoid On-Off Pilot Valve and the limit switch. The valve can control solenoid pilot valve according to an electrical signal so valve opens and closes rapidly.

    The valve has dual Normal Open type solenoid valves and dual Normal Close type solenoid. When Power failure or leakage occurs the valve senses the flow and closes promptly for preventing the damage in pump filed or automatic control system.

▶ Patent

▶ Specifications 

Specifications

Screwed 

KSPT(BSP) - NPT Standard

Flanged

10kgf/㎠ - ANSI 150 Standard

Globe

50A(2˝) ～80A(3˝)

50A(2˝) ～300A(12˝)

Angle

50A(2˝) ～80A(3˝)

50A(2˝) ～300A(12˝)

▶ Operating Pressure

KS D 1513. Class 10

ANSI B 16.42 Class 150

Operating Pressure

0.05～1.5 MPa(0.5~15kg f/㎠)

7～213 PSIG

Media

Temperature :  0°C ~ 80°C  Water, Oil (Order-Made)

▶ Solenoid Control Valve Specifications

Voltage

  24, 110, 220 AC 60Hz or 50Hz / 12, 24 DC

Operating Pressure

  1.5Mpa(213PSIG)

Coil Insulation

  Coil Insulation Class B(Standard) H(Optional)

Power Supply

  AC 8 Watts / DC 12 Watts

▶ Description 

▶ Sequence Of Operation

● Normal

  Starting pump, solenoid valve "1" and solenoid valve "3" open, solenoid valve "2" and solenoid valve "4" close.
   High pressure of Inlet flows into Pilot Inlet "A" ⇒ Solenoid valve "1" ⇒  below diaphragm chamber and valve opens slowly.
   When Indicator Stem "C" arrives Limit Switch "B", Pump "F" starts from eletric signal "B".

● Abnormal

     If power failure occurs or sensor "D" senses a leakage alarm singal, Solenoid valve "1" and solenoid valve "3" close, solenoid valve "2" and solenoid valve "4" open.

    Fluid of lower diaphragm is released to atmosphere through solenoid valve "1" and High pressure of Inlet pilot "A" ⇒ solenoid valve "2" ⇒ Upper diaphragm chamber ⇒ the valve closes promptly by Spring "E"

    When Indicator Stem "C" defects from  Limit Switch "B", Pump "F" stops from an electric signal "E"