JBE Thermostatic Expansion Valve

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.

Fujikoki JBE thermostatic expansion valve

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.kWPipe in × out
mm (in)
R134aR407CR404AR410AøABCDEQuote
JBE-E3034□□10.69.52 (3/8) × 12.70 (1/2)○–○–ø449249.54946.565.5Quote
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□□10.612.70 (1/2) × 15.88 (5/8)○–○–ø449249.55349.565.5Quote
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□□52.712.70 (1/2) × 15.88 (5/8)–○––ø6010755575273.5Quote
JBE-E3056□□10.615.88 (5/8) × 19.05 (3/4)○–○–ø449249.556.55365.5Quote
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□□35.215.88 (5/8) × 19.05 (3/4)○○○–ø601075560.55673.5Quote
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 superheat1°C to 7°C (usually, adjustment is unnecessary — do not spin the adjusting nut)
Factory default settingStatic superheat: 3.5°C to 4.5°C
Maximum working pressureR134a / R407C / R404A: 2.75 MPaG — R410A: 3.3 MPaG
Airtightness pressureR134a / R407C / R404A: 2.95 MPaG — R410A: 3.4 MPaG
Withstand pressureR134a / R407C / R404A: 4.42 MPaG — R410A: 4.5 MPaG
Charge systemGas cross charge
Maximum ambient temperature120°C
ConnectionFlare
Weight (external pressure equalization)540 g (ø44 diaphragm), 850 g (ø60 diaphragm)
Capillary / thermal sensing bulbø2.4 × 1500 mm / ø12.7 × 90 mm

Evaporating temperature range

RefrigerantWide (W)Medium temperature (M)Low temperature (L)
R134a10°C to -30°C-1°C to -30°C-18°C to -30°C
R407C10°C to -40°C-1°C to -40°C-18°C to -40°C
R404A10°C to -45°C-1°C to -45°C-18°C to -45°C
R410A10°C to -45°C——

Dimensions

JBE dimension drawing
Dimensions A, B, C, D, E and diaphragm diameter for each model are in the model list above (mm).

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).

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