Danfoss HFI 040 high pressure float valve (liquid level regulating valve), 100 mm (4 in) butt weld inlet ASME B36.10M Schedule 40, 50 mm (2 in) butt weld outlet, 40 mm nozzle, 400 kW R717 rated capacity, 25 bar MWP (code 148G3097)
Danfoss

Danfoss HFI 040 high pressure float valve (liquid level regulating valve), 100 mm (4 in) butt weld inlet ASME B36.10M Schedule 40, 50 mm (2 in) butt weld outlet, 40 mm nozzle, 400 kW R717 rated capacity, 25 bar MWP

Part number148G3097Item numberDANFOSS-148G3097EAN / GTIN5702428343985HS code8481.80
ASME B36.10M Schedule 40100 mm
MaterialLow-temperature steel
HVAC & Refrigeration
Expansion Valves
MOQ:1

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Product Description

Danfoss HFI 040 high pressure float valve, code 148G3097, a liquid level regulating (float expansion) valve for industrial refrigeration. HFI is a high-pressure float valve with an internal liquid measuring device; it is designed for direct flange mounting or welding onto plate-heat-exchanger type condensers, and can also be mounted directly on vessels. The valve is direct acting, so no differential pressure is required to activate it: the internal float senses the condensed liquid level and meters high-pressure liquid refrigerant on to the low-pressure side, maintaining the correct liquid level in the high-pressure receiver/condenser. It is equipped with a purge valve for venting non-condensable gases (e.g. air) from the top of the valve housing, which also assists servicing. Inlet connection 100 mm (4 in) butt weld inlet ASME B36.10M Schedule 40; outlet 50 mm (2 in) butt weld; nozzle (orifice) 40 mm. Rated capacity 400 kW (114 TR) on R717 (ammonia) at Temp. -10 - 35 °C; valve constant 16.79. Housing (shell and flange) is special steel approved for low-temperature application. Suitable for R717 (ammonia), HCFC and HFC refrigerants with a liquid density of 500-700 kg/m³. Maximum working pressure 25 bar (363 psig); media temperature range -50 °C to +80 °C (-58 °F to +176 °F). PED category III. CE marked; EAC (EAEU) certified.

Technical Specifications

Type
Danfoss HFI 040 high pressure float valve (liquid level regulating valve)
Code number
148G3097
Series
HFI (high pressure float valve with internal liquid measuring device)
Function
float-operated high-pressure liquid level regulation / float expansion (direct acting; maintains liquid level in high-pressure receiver / condenser)
Nozzle (orifice) size
40 mm
Inlet connection type
Butt weld
Inlet connection size
100 mm (4 in)
Outlet connection type
Butt weld
Outlet connection size
50 mm (2 in)
Connection standard
ASME B36.10M Schedule 40
Side branch 1 connection
3/8 in
Side branch 2 connection
1/2 in
Purge valve
yes (for venting non-condensable gases)
Rated capacity (R717)
400 kW (114 TR)
Rated capacity conditions
R717: Temp. -10 - 35 °C
Valve constant
16.79
Maximum working pressure
25 bar (363 psig)
Media temperature range
-50 °C to +80 °C (-58 °F to +176 °F)
Refrigerants
R134a R22 R401A R402A R404A R407A R407B R407C R407F R409A R410A R421A R502 R717 R507A
Suitable refrigerant liquid density
500-700 kg/m³
Housing material
special steel approved for low-temperature application
PED category
III
Approvals
CE marked; EAC (EAEU) certified
Net weight
39.59 Kilogram
Gross weight
47.49 Kilogram
EAN
5702428343985

Standards & Compliance

Standard
ASME B36.10M Schedule 40
Size / Series
100 mm
Material
Low-temperature steel
Pressure Rating
25 bar
Temperature Range
-50 °C to +80 °C
HS Code
8481.80

Compatibility & Fitment

Danfoss HFI 040 is selected by refrigeration capacity and condenser/receiver connection: match the nozzle (orifice) size (40 mm), inlet connection type and size (100 mm/4 in butt weld), and connection standard (ASME B36.10M Schedule 40). Type suffix F = flange inlet; suffix FD / "two external connections" version adds housing connections for drainage and pressure equalization. Capacity 400 kW is rated on R717 (ammonia). Float valve inserts, purge valves and seal/gasket kits are available separately as HFI spare parts.

Not sure if it fits? Email sales@cballast.com with your equipment serial number or photos — we confirm fit before you order.

Product Documentation

Document preview: Danfoss liquid level regulating valves for industrial refrigeration — float valve type HFI catalogue / data sheet (AF242586444023, includes design, technical data, dimensions, weights and ordering)

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Danfoss HFI 040 F high pressure float valve (liquid level regulating valve), 100 mm (4 in) flange inlet (DIN 2635/2512-F EN 1092-1 EN 10220), 50 mm (2 in) butt weld outlet, 40 mm nozzle, 400 kW R717 rated capacity, 25 bar MWP

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Danfoss HFI 040 F high pressure float valve (liquid level regulating valve), 100 mm (4 in) flange inlet (DIN 2635/2512-F EN 1092-1 EN 10220), 50 mm (2 in) butt weld outlet, 40 mm nozzle, 400 kW R717 rated capacity, 25 bar MWP

148G3102

Danfoss HFI 050 F high pressure float valve (liquid level regulating valve), 100 mm (4 in) flange inlet (DIN 2635/2512-F EN 10220), 50 mm (2 in) butt weld outlet, 50 mm nozzle, 800 kW R717 rated capacity, 25 bar MWP

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Danfoss HFI 050 F high pressure float valve (liquid level regulating valve), 100 mm (4 in) flange inlet (DIN 2635/2512-F EN 10220), 50 mm (2 in) butt weld outlet, 50 mm nozzle, 800 kW R717 rated capacity, 25 bar MWP

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Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.

Frequently asked questions

Where can I buy 148G3097?
148G3097 can be ordered from cballast.com as a Danfoss catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
What is the manufacturer part number for this Danfoss product?
The manufacturer part number is 148G3097.
What is the HS code for 148G3097?
The customs tariff (HS) code for 148G3097 is 8481.80.
Who manufactures 148G3097?
148G3097 is a Danfoss product in the HVAC & Refrigeration range.
Is a datasheet available for 148G3097?
Yes — the 148G3097 datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 148G3097?
The minimum order quantity is 1.
Is 148G3097 available?
Yes — 148G3097 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).