Fujikoki J series · Flare
Type JBE Thermostatic Expansion Valve
Is designed with medium-sized capacity (connection: flare), and can be used in hot gas defrost cycle as well. Evaporating temperature can be set according to the intended use.

Overview
This expansion valve can be used over a wide range of applications including heat pump, cooling, air conditioning, refrigeration, freezing, and ecological equipment. It is also suitable for hot gas defrost cycle.
- Capacity
- 10.6–105.5 kW (nominal)
- Pipe sizes
- 9.52 (3/8) × 12.70 (1/2) mm (in)
12.70 (1/2) × 15.88 (5/8) mm (in)
15.88 (5/8) × 19.05 (3/4) mm (in) - Equalization
- External pressure equalization (internal: build-to-order only)
- Refrigerants
- R134a, R407C, R404A, R410A
- Also supported
- R448A, R449A, R407H
additionally supportable refrigerants listed in the current Fujikoki product lineup - Connection
- Flare
JBE model list
| External eq. | kW | Pipe in × out mm (in) | R134a | R407C | R404A | R410A | ø | A | B | C | D | E | Quote |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| JBE-E3034□□ | 10.6 | 9.52 (3/8) × 12.70 (1/2) | ○ | – | ○ | – | ø44 | 92 | 49.5 | 49 | 46.5 | 65.5 | Quote |
| JBE-E4034□□ | 14.1 | ○ | – | ○ | – | Quote | |||||||
| JBE-E5034□□ | 17.6 | – | ○ | – | – | Quote | |||||||
| JBE-E6034□□ | 21.1 | – | – | – | ○ | Quote | |||||||
| JBE-E6534□□ | 22.9 | – | ○ | – | – | Quote | |||||||
| JBE-E8034□□ | 28.1 | – | – | – | ○ | Quote | |||||||
| JBE-E3045□□ | 10.6 | 12.70 (1/2) × 15.88 (5/8) | ○ | – | ○ | – | ø44 | 92 | 49.5 | 53 | 49.5 | 65.5 | Quote |
| JBE-E4045□□ | 14.1 | ○ | – | ○ | – | Quote | |||||||
| JBE-E5045□□ | 17.6 | ○ | ○ | ○ | – | Quote | |||||||
| JBE-E6045□□ | 21.1 | ○ | – | ○ | ※ | Quote | |||||||
| JBE-E6545□□ | 22.9 | – | ○ | – | – | Quote | |||||||
| JBE-E7545□□ | 26.4 | ○ | – | ○ | – | Quote | |||||||
| JBE-E8045□□ | 28.1 | – | ○ | – | ※ | Quote | |||||||
| JBE-E10045□□ | 35.2 | ○ | ○ | ○ | ※ | Quote | |||||||
| JBE-E12545□□ | 44.0 | – | ○ | – | – | Quote | |||||||
| JBE-E15045□□ | 52.7 | 12.70 (1/2) × 15.88 (5/8) | – | ○ | – | – | ø60 | 107 | 55 | 57 | 52 | 73.5 | Quote |
| JBE-E3056□□ | 10.6 | 15.88 (5/8) × 19.05 (3/4) | ○ | – | ○ | – | ø44 | 92 | 49.5 | 56.5 | 53 | 65.5 | Quote |
| JBE-E4056□□ | 14.1 | ○ | – | ○ | – | Quote | |||||||
| JBE-E5056□□ | 17.6 | ○ | ○ | ○ | – | Quote | |||||||
| JBE-E6056□□ | 21.1 | ○ | – | ○ | ※ | Quote | |||||||
| JBE-E6556□□ | 22.9 | – | ○ | – | – | Quote | |||||||
| JBE-E7556□□ | 26.4 | ○ | – | ○ | – | Quote | |||||||
| JBE-E8056□□ | 28.1 | – | ○ | – | ※ | Quote | |||||||
| JBE-E10056□□ | 35.2 | – | – | – | ○ | Quote | |||||||
| JBE-E12056□□ | 42.2 | – | – | – | ○ | Quote | |||||||
| JBE-E14056□□ | 49.2 | – | – | – | ○ | Quote | |||||||
| JBE-E16056□□ | 56.3 | – | – | – | ○ | Quote | |||||||
| JBE-E10056□□ | 35.2 | 15.88 (5/8) × 19.05 (3/4) | ○ | ○ | ○ | – | ø60 | 107 | 55 | 60.5 | 56 | 73.5 | Quote |
| JBE-E12556□□ | 44.0 | ○ | ○ | ○ | – | Quote | |||||||
| JBE-E15056□□ | 52.7 | – | ○ | – | – | Quote | |||||||
| JBE-E20056□□ | 70.3 | ○ | ○ | ○ | – | Quote | |||||||
| JBE-E30056□□ | 105.5 | – | ○ | – | – | Quote |
○Listed in the catalog※Build-to-order–Not listed for this refrigerant□□ = refrigerant code + evaporating temperature code (see below)Dimensions in mm · ø = diaphragm diameter
Specifications
| Adjustment range of static superheat | 1°C to 7°C (usually, adjustment is unnecessary — do not spin the adjusting nut) |
|---|---|
| Factory default setting | Static superheat: 3.5°C to 4.5°C |
| Maximum working pressure | R134a / R407C / R404A: 2.75 MPaG — R410A: 3.3 MPaG |
| Airtightness pressure | R134a / R407C / R404A: 2.95 MPaG — R410A: 3.4 MPaG |
| Withstand pressure | R134a / R407C / R404A: 4.42 MPaG — R410A: 4.5 MPaG |
| Charge system | Gas cross charge |
| Maximum ambient temperature | 120°C |
| Connection | Flare |
| Weight (external pressure equalization) | 540 g (ø44 diaphragm), 850 g (ø60 diaphragm) |
| Capillary / thermal sensing bulb | ø2.4 × 1500 mm / ø12.7 × 90 mm |
Evaporating temperature range
| Refrigerant | Wide (W) | Medium temperature (M) | Low temperature (L) |
|---|---|---|---|
| R134a | 10°C to -30°C | -1°C to -30°C | -18°C to -30°C |
| R407C | 10°C to -40°C | -1°C to -40°C | -18°C to -40°C |
| R404A | 10°C to -45°C | -1°C to -45°C | -18°C to -45°C |
| R410A | 10°C to -45°C | — | — |
Dimensions

How to read the model number
Models of the J series are displayed as shown below (example: JBE-E5045NL).
JBEType
EExternal equalization
50Capacity
45Pipe code
NRefrigerant
LEvap. range
Equalizing systemE is appended for external equalization.
Refrigerant codeR134a: Q · R22/R407C: H · R404A: N · R410A: G
Evaporating temperature rangeWide use: W · Medium temperature use: M · Low temperature use: L
Capacity & pipe codeRead them from the model list (for example “5045” = 17.6 kW, 12.70 × 15.88 mm).
Notes
- Do not allow pressure higher than the airtightness pressure to be applied to the expansion valve when checking the airtightness of the piping.
- When using the R410A-compatible valve in a heat pump circuit, install the thermal sensing bulb and external equalizing tube between the 4-way valve and the accumulator (at the inlet side of the compressor).
- The R407C-compatible valve is designed on the basis of an R22-compatible obsolete model, so its values may differ slightly from those listed.
- For mounting the thermal sensing bulb, see installation tips.
Specifications: FUJIKOKI Product Catalog (2016), pages 13–14; additional refrigerants: Fujikoki product lineup (fujikoki.co.jp).
Need a quote for JBE?
Send the model number (or capacity, refrigerant and pipe size) and the quantity.