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Fujikoki offers a wide range of products supporting refrigeration and freezing cycles. In particular, we have the overwhelming number one market share of expansion valves used in automotive applications and drain pumps in air conditioners. We also have one of the top global market shares for electric valves used in air conditioners.

In-vehicle Area

Air-conditioner Area

Refrigeration Area

In-vehicle Area

Thermostatic Expansion Valve

Electronic Linear Control Valve

Solenoid Valves

Receiver Drier

Pressure Switches

Other Pick-up Product

Air-conditioner Area

Electronic Linear Control Valves

Drain Pump

Solenoid Valve

Safety Shut-off Valves

Water Valve

Other Pick-up Product

Refrigeration Area

Thermostatic Expansion Valve

Solenoid Valve

Electronic Linear Control Valve

Electronic Devices

Thermostat

Other Pick-up Product

Product Usage Area

Our products are used in a variety of markets from daily life to industry. Fujikoki products are incorporated into core components of these systems. Our daily living is influenced by these products through commercial and domestic air conditioning, floor heating and air conditioning, electric hot water heaters, ensuring comfort in vehicle air conditioning, and supporting heating and cooling in rapidly expanding vehicle electrification.
Similarly we provide core components and are highly influential in growing industrial markets such as cooling semiconductor manufacturing equipment/facilities, and refrigeration and freezing systems for food showcases.
While you may not directly see our products, you are sure to come across Fujikoki products, as we are an integral part of your daily life "comfort" and "sustainability".

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Thermostatic Expansion Valve

VRE- / VHE- / VDE-type Thermostatic Expansion Valve(OEM only ; Built-to-order)

  • Built-in-one structure: an exterior temperature sensing bulb and capillary (for the external equalization) are no longer required, enabling enhancement in install process
  • Superheat parameter: configurable only by internal adjustment through factory pre-set, per your order
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Technical Note

Compact light-weight thermostatic expansion valve specific for vehicle air-conditioning systems with better workability during installation

VHES-type Solenoid-Valve-Integrated Thermostatic Expansion Valve(OEM only ; Built-to-order)

  • Integral design allowing the combination of a thermostatic expansion with a solenoid valve into one module
  • Lightweight compact form factor
  • Superheat parameter: configurable only by internal adjustment through factory pre-set as per your order
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Technical Note

Compact form factor with a one-module solution for the integration of a thermostatic expansion valve with a solenoid valve

C- / G- / R-type Thermostatic Expansion Valve(OEM only ; Built-to-order)

  • Product design specific for in-vehicle air-conditioning systems
  • Compact and lightweight form factor with outstanding technical performance
  • Superheat parameter: configurable only by internal adjustment through factory pre-set as per your order
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Technical Note

C-type: internal equalization model only
G / R type: internal or external equalization model selectable

Electronic Linear Control Valve

PGM-type Electronic Linear Control Valve(OEM only ; Built-to-order)

  • Applicable as an expansion valve to support cooling/heating operation performed by vehicle heat-pump circuit
  • Excellence in precise manipulation regarding valve opening along with digital input signal
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Technical Note

With gear-driven actuation, the PGM-type electronic linear control valve can ensure both ultra-precise control (high resolution) and large volume capacity. LIN-equipped model available.

CDM-type Electronic Linear Control Valve(OEM only ; Built-to-order)

  • Applicable as an expansion valve to support cooling/heating operation performed by vehicle heat-pump circuit.
  • Excellence in precise manipulation regarding valve opening with digital input signal
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Technical Note

With the direct-driven actuation, this CDM-type electronic linear control valve achieves the dimensional downsizing. LIN-equipped model available.

RUS-type Solenoid Valve(OEM only ; Built-to-order)

  • ON/OFF valve applicable to the refrigerant flow circuit (high-pressure side / low-pressure side) of in-vehicle air-conditioning systems
  • Both powered-open and powered-close models available
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Technical Note

This RUS-type is a pilot-actuating solenoid valve and has flange connector.

Solenoid Valves

RAS- / RBS-type Solenoid Valve(OEM only ; Built-to-order)

  • Direct-actuating, normally open, 2-way valve using DC power.
  • Applicable to the refrigerant flow circuit (high-pressure side) inside the vehicle air-conditioning systems, refrigeration vans, and similar applications.
  • Aluminum valve housing provides compact and lightweight form factor with higher grade of corrosion resistance.
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Technical Note

The RAS-type is designed with the right-angled flow path. The RBS-type is designed with the straight flow path.

Receiver Drier

TAF-type Accumulator(OEM only ; Built-to-order)

  • Applicable to the low-pressure side of a compressor
  • Serving as a gas-liquid separator to prevent liquid back to compressor (by separating the gas out of the mixture of the gas-liquid refrigerant inside the accumulation tank to allow only the gas-state refrigerant return to the refrigeration line)
  • Lightweight aluminum tank
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Technical Note

The TAF has lightweight aluminum-made accumulator tank.

ATF- / AHF-type Receiver Drier(OEM only ; Built-to-order)

  • Lightweight aluminum tank
  • Excellent corrosion and vibration resistance
  • High moisture absorption capacity
  • Capability to accommodate various pressure switches and transducers
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Technical Note

The ATF-type is supplied with flange connection. The AHF-type is supplied with O-ring connection.

Pressure Switches

Small-sized Pressure Switch(OEM only ; Built-to-order)

  • This small-sized pressure switch is capable of conducting on/off control for the electric-powered condenser fans responding to the pressure fluctuations inside refrigeration cycles.
  • It also serves as a protection switch to halt the compressor when the pressure goes beyond the prescribed level.
  • Compact, lightweight, and highly durable
  • Various models, suitably adjusted for different applications, are shown. Please contact us for more details on technical specifications
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Technical Note

The A-type pressure switch provides a single ON/OFF function.
The D-type pressure switch offers a dual ON/OFF function.
The T-type pressure switch supports a triple ON/OFF function.

Other Pick-up Product

GGV-type Check Valve(OEM only ; Built-to-order)

  • This GGV-type can be applied to prevent a refrigerant / refrigerating oil from flowing back into an evaporator / compressor at the time when a vehicle air-conditioning system is turned off or at the time when the cooling/heating operation receives switchover command
  • Excellent seat leak performance and low pressure loss.
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Technical Note

Models are available in three different valve diameters. Please select one that matches the system unit.

Electronic Linear Control Valves

PAM-type Electronic Linear Control Valve(OEM only ; Built-to-order)

  • A refrigerant flow control valve driven by a four-phase pulse motor
  • Next-generation product integrating together the strengths of both direct-driven actuation and gear-driven mechanism
  • Precisely fine controllability with the higher flow resolution in the range from 2,000 to 3,000 steps
  • Suitable for heat-pump air-conditioners
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Technical Note

As one of its kind, this PAM-type offers ultra-precise controllability (by higher resolution), high torque performance (larger volume capacity), silent motion, and strong shut-off capability even with its compact body.

PDM-type Electronic Linear Control Valve(OEM only ; Built-to-order)

  • A refrigerant flow control valve driven by a four-phase pulse motor
  • Next-generation product integrating together the strengths of both direct-driven actuation and gear-driven mechanism
  • Precisely fine controllability with the higher flow resolution in the range from 6000 steps
  • Suitable for Larger-volume capacity chilleres.
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Technical Note

As one of its kind, this PDM-type offers ultra-precise controllability (by higher resolution), high torque performance (larger volume capacity), silent motion, and strong shut-off capability.

CAM- / HAM-type Electronic Linear Control Valve(OEM only ; Built-to-order)

  • A refrigerant flow control valve driven by a four-phase pulse motor
  • 500 steps of resolution
  • Applicable also to drying control and defrost control as well as flow control
  • Suitable for heat-pump air-conditioners
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Technical Note

This CAM- /HAM-type attains reduction in size and weight.

EFM-type Electronic Linear Control Valve(OEM only ; Built-to-order)

  • A refrigerant flow control valve driven by a four-phase pulse motor
  • The internal gear allows 2,000 steps of resolution in the valve positioning from full close to full open, achieving precise control.
  • The valve runs with very low noise and is suitable for use with indoor units.
  • Suitable for heat-pump air-conditioners
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Technical Note

Significant improvement in sealing performance and the dielectric strength in the motor section enables this EFM-type to be used in harsh environments

Drain Pump

PMD-type Drain Pump(OEM only ; Built-to-order)

  • Installable in indoor units of packaged / residential air-conditioners to facilitate condensate drainage generated by an evaporator(s) during heating / dehumidifying operation.
  • With a DC motor, this PMD-type drain pump attains excellent technical performance, high efficiency, low noise, low vibration, size compaction, weight reduction, and better energy saving performance.
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Technical Note

Designed with DC brushless motor as a driving force, this PMD-type drain pump attains high efficiency, improved energy saving performance, low noise, and low vibration. Models with improved clogging resistance against slimy debris are also available.

Solenoid Valve

APS-type Solenoid Vale(OEM only ; Built-to-order)

  • Designed to be a normally-open 2-way valve used in a residential air-conditioner indoor unit featured with a cyclic drying system DC power base eliminates electromagnetic noise during power-on state.
  • Silent opening/closing motion during valve operation
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Technical Note

The coil module makes use of the screw-less snap-in fixing solution, enabling its firm fixation even under the confined-space service and improving the workability.
Non-toxic regulated substances, together with weight reduction in each component, makes this APS-type more environmentally friendly.

Safety Shut-off Valves

PDM-type Safety Shut-off Valve(OEM only ; Built-to-order)

  • This PDM-type is designed to shut-off the flow path when a low flammable refrigerant (A2L) leaks out from the system pipe line, preventing the refrigerant from leaking out into the environment.
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Technical Note

The PDM-type employs a motor assembled with high-torque gears, achieving excellent functionality in valve leakage. It is not required to energize the motor during non-operating time or after shutoff.
With flow resolution of 6,000 steps, it can also work as a valve to control flow rate with precise steps.

PAM-type Safety Shut-off Valve(OEM only ; Built-to-order)

  • This PAM-type is designed to shut-off the flow path when a low flammable refrigerant (A2L) leaks out from the system pipe line, preventing the refrigerant from leaking out into the environment.
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Technical Note

The PAM-type employs a motor assembled with high-torque gears, achieving excellent functionality in the valve leakage proofing. It is not required to energize the motor during non-operating time or after shutoff.

Water Valve

MAM-type Mixing Valve(OEM only ; Built-to-order)

  • Applicable to a water circuit inside a heat-pump electric hot water heater (e.g., EcoCute), to mix cold water with heated water
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Technical Note

This MAM-type is designed to withstand higher heat and pressure, ensuring its usage in a water circuit inside an application like EcoCute.An extra check valve (MAV-type) can be loaded into the incoming water inlet as a built-in component.

MAQ-type Flow Rate Sensor(OEM only ; Built-to-order)

  • Applicable to a water circuit inside a heat-pump electric hot water heater (e.g., EcoCute), to sense flow rate.
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Technical Note

This MAQ-type is designed to withstand higher heat and pressure, ensuring its usage in a water circuit inside an application like EcoCute.
A temperature sensor can be additionally attached.

MAV-type Check Valve(OEM only ; Built-to-order)

Applicable to a heat-pump electric hot water heater (e.g., EcoCute).And this Check Valve for cold/hot Water.

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Technical Note

This MAV-type is applicable to a water circuit inside a heat-pump electric hot water heater (e.g., EcoCute).
Also, it can be installed as a built-in component into the 20 phi (mm) pipe, including MAM-type mixing valve.

DPM-type 3-way switching valve(OEM only ; Built-to-order)

  • Applicable to a heat-pump electric hot water heater (e.g., EcoCute)
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Technical Note

This DPM-type is designed with higher performance against heat and pressure, ensuring its usage in a water circuit inside an application like EcoCute.
With a stepper motor being employed, it can offer lower power consumption rate.

XBM-type Hot-water Flow Control Valve(OEM only ; Built-to-order)

  • Driven by a four-phase pulse motor
  • 4,000 steps of resolution for precisely fine controllability
  • Suitable for application like hot-water floor heating, misty sauna
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Technical Note

Quick fastener solution is applied to the joint connectors.
Able to support Cv’s of up to 1.5.

Other Pick-up Product

FUP-type Fusible Plug(OEM only ; Built-to-order)

  • Fusible at abnormal temperature point to forcibly release pressure
  • UL standard (as updated) in North American now mandates pressure containers holding a capacity larger than the pre-determined limit, to be equipped with a valve capable of forcibly releasing pressure at an abnormal temperature point.
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Technical Note

This FUP-type is designed and manufactured for specific use with refrigeration cycles or air-conditioning systems. Please conduct detailed user verification on factors including unit matching and technical durability.

YCV5- / YCV8-type Check Valve

  • Connection: Sweat
  • Slim form factor
  • Valve member: Nylon resin
  • Model with a SUS valve member also available for use in the higher temperature range
  • Note: please keep the seat temperature below 120 Celsius by wrapping a wet cloth around the barrel pipe during brazing joint treatment (For SUS-made valve member, below 150 Celsius).
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Technical Note

Models with two different valve diameters; 5 millimeter or 8 millimeter are available.

Thermostatic Expansion Valve

FSE-type Thermostatic Expansion Valve

  • Supported refrigerants: R448A, R449A, R407H, R463A-J
  • Applicable to refrigeration circuits, including hot gas defrosting cycles
  • Sweated connection
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Technical Note

The temperature sensing bulb is sealed with a gas cross charge. A “wide” model is also available for a larger evaporating temperature range.

FRE-type Thermostatic Expansion Valve(OEM only ; Built-to-order)

  • Applicable to refrigeration circuits, including hot gas defrosting cycles
  • Compact size
  • Sweated connection
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Technical Note

This FRE-type is designed to have a sweated connection and compact lightweight body.

FWE-type Thermostatic Expansion Valve

  • Additionally supportable refrigerants: R448A, R449A, R407H, R463A-J
  • Applicable to refrigeration circuits, including hot gas defrosting cycles
  • Flare connection
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Technical Note

The temperature sensing bulb is sealed with a gas cross charge. A “wide” model is also available for a larger evaporating temperature range.

FFE-type Thermostatic Expansion Valve(OEM only ; Built-to-order)

  • Applicable to refrigeration circuits, including hot gas defrosting cycles
  • Compact size
  • Flare connection
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Technical Note

This FFE-type is designed to have a flare-connected compact lightweight body.

JBE-type Thermostatic Expansion Valve

  • Additionally supportable refrigerants: R448A, R449A, R407H
  • Applicable to refrigeration circuits, including hot gas defrosting cycles
  • Flare connection
  • Middle-volume capacity
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Technical Note

The temperature sensing bulb is sealed with a gas cross charge. A “wide” model is also available for a larger evaporating temperature range.

JAE-type Thermostatic Expansion Valve

  • Applicable to refrigeration circuits, including hot gas defrosting cycles
  • Flare connection
  • Middle-volume capacity
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Technical Note

The temperature sensing bulb is sealed with a gas cross charge. A “wide” model is also available for a larger evaporating temperature range.

Solenoid Valve

AUS-type Solenoid Valve

  • Supported refrigerants: R448A, R449A, R407H, R463A-J
  • Applicable to refrigeration circuits contained in freezers
  • Low power consumption
  • Suitable for various purpose, including hot gas lines
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Technical Note

Models with a strainer are also available.

BAS-GYS-type Solenoid Valve

  • Supported refrigerants: R448A, R449A, R407H, R463A-J
  • A strainer has been added to the inlet side of the original BAS-type solenoid valve.
  • Connection: Sweated
  • Connecting pipe diameter: 1/4 inch or 3/8 inch
  • Coil module voltage: AC100V or AC200V
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Technical Note

The strainer shuts out unwanted debris and spatter inside cyclic systems. The 100 mesh grid enables the strainer to remove microscopic foreign materials, purify cyclic circuits, and protect the refrigeration unit and other functional components against defects caused by foreign materials

EAS-type Solenoid Valve

  • Open-close switching valve applicable for a refrigerant circuit loaded in a CO2 water heater
  • Pilot-actuation, powered-open, 2-way
  • Enhanced design in every component to withstand high pressures
  • Capable of ensuring the valve open/close movement through special engineering technology
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Technical Note

This EAS-type is accompanied by a mold coil having higher water-proofing performance and can ensure reliable operation even in a defrosting circuit where water droplets matter.

Electronic Linear Control Valve

CAM- / HAM-type Electronic Linear Control Valve(OEM only ; Built-to-order)

  • A refrigerant flow control valve driven by a four-phase pulse motor
  • 500 steps of resolution
  • Applicable for drying and defrost control as well as flow control
  • Suitable for heat-pump air-conditioners
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Technical Note

This CAM / HAM type attains reduction in size and weight

PAM-type Electronic Linear Control Valve(OEM only ; Built-to-order)

  • A refrigerant flow control valve driven by a four-phase pulse motor
  • Next-generation product integrating the strengths of both direct-driven actuation and gear-driven
  • Precise controllability with the higher flow resolution in the range from 2,000 to 3,000 steps
  • Suitable for heat-pump air-conditioners
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Technical Note

As one of its kind, this PAM-type offers ultra-precise controllability (by higher resolution), high torque performance (larger volume capacity), silent motion, and strong shut-off capability even with its compact body.

PDM-type Electronic Linear Control Valve(OEM only ; Built-to-order)

  • A refrigerant flow control valve driven by a four-phase pulse motor
  • Next-generation product integrating together the strengths of both direct-driven actuation and gear-driven mechanism
  • Precisely fine controllability with the higher flow resolution in the range from 6000 steps
  • Suitable for Larger-volume capacity chilleres.
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Technical Note

As one of its kind, this PDM-type offers ultra-precise controllability (by higher resolution), high torque performance (larger volume capacity), silent motion, and strong shut-off capability.

CPM- / HPM-type Electronic Linear Control Valve(OEM only ; Built-to-order)

  • Driven by four-phase pulse motor
  • Applicable for CO2 refrigerant
  • Suitable for CO2-operated refrigerators and water heaters
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Technical Note

The valve positioning is configured with 500 steps of resolution from full close to full open, achieving precise control.
Compact, yet high performance – ensuring fine controllability against ultra-high pressure.

Electronic Devices

MGY-type Electronic Linear Control Valve Driver

  • Ensuring proportional positioning control of an electronic linear control valve (eVALVE) by incoming control signals (4 to 20mA)
  • Available in either enclosure model or PCB model
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Technical Note

Programmable to either clockwise or counterclockwise

FCT-type Digital Thermostat

  • Simple program setting with large LED indicators and pushbuttons
  • Display-off function, temperature revising function, and keylock function can be easily initiated when required
  • Each setting will be saved by a memory chip during power failure
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Technical Note

Three models are available; simple-functioning FCT-S model, 2-output FCT-D model, and alarm FCT-A model. An optional sea water sensor is also available.

Thermostat

EXT-type Thermostat

  • Usable as a temperature adjustment controller for refrigeration circuits and air-conditioning equipment
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Technical Note

With the large-capacity power element being integrated, this EXT type ensures stable temperature control. Temperature setting can be easily configured by simply turning the knob. Stainless-steel material is used for major parts of the main body housing for better durability.

U-type Thermostat

  • Suitable as a temperature adjustment controller for refrigeration circuits and air-conditioning equipment
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Technical Note

For various applications, this U-type can operate in a wide temperature range and can also adjust the temperature difference parameter for ON/OFF switching. Temperature setting can be easily configured by simply turning the knob. Stainless-steel material is used for major parts of the main body housing, ensuring excellent corrosion resistance.

Other Pick-up Product

SRJ-type Suction Pressure Regulating Valve

  • Supports refrigerants: R448A, R449A, R407H
  • Capable of reducing the load inside refrigeration equipment by:
    • Preventing excessively large volume of a liquid refrigerant from flowing into a compressor when the refrigeration equipment halts operation
    • Lowering the suction pressure quickly to the requisite pressure level during the start-up of the compressor.
  • Suitable to enhance the energy efficiency as well as the COP in a refrigeration unit
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Technical Note

[Technical Note for Capacity Selection]
The pipe diameter of a model from this SRJ-type should be matched to the refrigeration equipment. The Capacity Change Chart outlines the relationship between the valve inlet-outlet pressure difference and the corresponding capacity. For more details of the Capacity Change Chart, please click “Product Specification”.

BAV-type Ball Valve

  • Compact and lightweight
  • Easy-to-handle
  • Able to shift the full open or close position by simply rotating the valve stem a quarter turn
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Technical Note

This BAV-type offers the inner valve member with a fluid swelling prevention mechanism, yet is compact, lightweight, and easy-to-handle.

WAC-type Water Regulating Valve

  • Capable of controlling water volume in proportion to the pressure inside a condenser.
  • Able to react across the incoming pressure fluctuation and then automatically adjust the amount of coolant water to the level necessary in order for the condenser to keep the internal refrigerant pressure stable.
  • Water saving effect; the coolant water supply will be suspended automatically at the same time when refrigeration equipment halt its operation.
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Technical Note

Flare-connection models are also available.

FS- / YS-type Strainer

  • Suitable to remove foreign materials (e.g. metal particles) inside the refrigeration cycle
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Technical Note

FS-type offers flare-connection and YS-type offers sweated connection. Both models are engineered with a complete closed structure.

MSGP-type Sight Glass

  • Equipped with a moisture indicator (moisture detector)
  • Able to observe the flow condition of a refrigerant or an oil
  • Capable of monitoring the moisture content level contained inside a refrigerant, by using the color readouts on the moisture indicator.
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Technical Note

Both flare and sweated connection models are available.

DDF-type Core Drier

  • Supportable refrigerants: R448A, R449A, R407H, R32
  • Featured with a synthetic zeolite core module
  • Available in multiple models with flare-connection, sweated connection, and various core module dimensions to meet diverse needs and applications.
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Technical Note

Bi-directional flow models are also available under the product line-up of the DGF-type.

CAV-type Check Valve(OEM only ; Built-to-order)

  • Suitable for a CO2 circuit
  • Connection: Sweat
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Technical Note

Depending on the connecting pipe diameter in the range from 1/4 inch up to 5/8 inch, the valve diameter of either 2 phi (mm) or 10 phi (mm) is selectable. The mounting position can be set in either the horizontal direction or the vertical direction.
(The actual value of the valve opening-closing pressure difference varies according to the mounting position; however, in either direction, the CAV-type can operate within the minimum valve opening-closing pressure difference as specified in the Product Specification.)

HSF-type Suction Strainer

  • Installable on the low pressure side (gas line) for protecting a compressor.
  • Suitable for use with a scroll compressor highly sensitive to contamination.
  • Dual purpose options available; a filter core (to be sold optionally and separately) for normal use as a strainer, or a drier core (to be sold optionally and separately) for alternative use as a drier.
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Technical Note

This HSF-type is designed for repeatedly continuous usage, only requiring replacing the filter core (to be sold optionally and separately) at certain service timing (e.g. maintenance work).