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".
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
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
Technical Note
Compact form factor with a one-module solution for the integration of a thermostatic expansion valve with a solenoid valve
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
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
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
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
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.
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
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
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
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.
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
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.
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
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
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.
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
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.
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.
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
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.
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.
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)
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
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.
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).
Technical Note
Models with two different valve diameters; 5 millimeter or 8 millimeter are available.
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
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
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
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
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.
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
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
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
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
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
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
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
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.
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
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.
Technical Note
Both flare and sweated connection models are available.
Available in multiple models with flare-connection, sweated connection, and various core module dimensions to meet diverse needs and applications.
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
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.
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).
