Danfoss CHV-X 125 straightway check valve, 125 mm (5 in) butt weld, 52 bar, steel
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Product Description
Danfoss CHV-X 125 check (non-return) valve for the SVL Flexline industrial-refrigeration range, code 148B6599. The CHV-X permits refrigerant flow in one direction only and closes to prevent back-flow toward pumps, compressors and vessels. The cold-resistant steel housing carries a spring-loaded, guided cone with a V-port profile that throttles below roughly 25% lift to suppress valve chatter and noise. This SKU is the straightway body with 125 mm (5 in) butt-weld connections to EN 10220. Flow coefficient Kv 250 m3/h (Cv 293 gal/min); minimum opening differential pressure 0.04 bar (0.58 psi); flow direction marked by an embossed 1-way arrow. Maximum working pressure 52 bar (754 psig); media temperature range -60 to 150 C (-76 to 302 F). For HCFC, non-flammable HFC, R717 (ammonia) and R744 (CO2) systems. Built on the SVL Flexline modular platform and serviceable with SVL Flexline spare parts.
Technical Specifications
- Type
- CHV-X 125 (SVL Flexline check valve) Code number: 148B6599 Series: CHV-X (SVL Flexline) Function: Check (non-return) valve Nominal size: 125 mm (5 in) Flow direction: Straightway Connection: Butt weld (EN 10220) Housing material: Steel (cold-resistant) Kv value: 250 m3/h (Cv 293 gal/min) minimum opening differential pressure: 0.04 bar (0.58 psi) Flow direction indicator: Embossed 1-way arrow Maximum working pressure: 52 bar (754 psig) Media temperature range: -60 to 150 C (-76 to 302 F) Applicable media: HCFC, HFC, R717 (ammonia), R744 (CO2) Fluid groups: 1, 2 Approvals: CE, PED Category III Compliance: EU RoHS, China RoHS Net weight: 32.5 kg EAN: 5702428989343 Product group: Check valves Approval: CE CE mark: Yes China RoHS compliance: Yes Colour Paint: Reddish brown Connection Code: (2001:D40:125) Connection material: Steel Connection size [in]: 5 in Connection size [mm]: 125 mm Connection standard: EN 10220 Connection type: Butt weld Cv value [gal/min]: 290 gal/min Direction: Straightway EU RoHS compliance: Yes Fluid Group: 1 Inlet connection size [mm]: 125 mm Inlet connection type: Butt weld Kv value [m³/h]: 250 m³/h Max. Working Pressure [bar]: 52 bar Max. Working Pressure [psig]: 754 psig MinODP [bar]: 0.04 bar MinODP [psi]: 0.58 psi PED category: III REACH Candidate List substances: No Refrigerants: R134a Temperature range [°C] [max]: 150 °C Temperature range [°C] [min]: -60 °C Temperature range [°F] [max]: 302 °F Temperature range [°F] [min]: -76 °F
Standards & Compliance
- Size / Series
- 125 mm
- Material
- Steel
- Pressure Rating
- 52 bar
- Temperature Range
- -60 to 150 C
- HS Code
- 8481.30
Compatibility & Fitment
Danfoss SVL Flexline CHV-X check valve. Select by nominal size (125 mm / 5 in), flow body (straightway) and connection standard (EN 10220 butt weld). EN 10220 and ASME B 36.10M Schedule 40 weld-end preparations are not interchangeable — confirm the mating pipe schedule before ordering. The CHV-X is check-only; where an integral hand shut-off is also required, use the SCA-X stop/check valve of the same size. Mount with the embossed arrow in the direction of intended flow.
Product Documentation
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Technical guides
- Cross-Referencing Danfoss Refrigeration Components by IMPA and OEM Code
- Danfoss Product Code Decoder — 003Z, 013G, 017B, 023U, 027L, 032F, 060G, 060H, 065B, 065Z, 068Z, 084H, 132F, 148B Series (Complete Reference)
- Danfoss Maneurop MTZ Reciprocating Compressors — Model Range, Voltage Codes and Replacement Guide
Catalogue entry last verified: 2026-08-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 148B6599?
- 148B6599 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 148B6599.
- What is the HS code for 148B6599?
- The customs tariff (HS) code for 148B6599 is 8481.30.
- Who manufactures 148B6599?
- 148B6599 is a Danfoss product in the HVAC & Refrigeration range.
- Is a datasheet available for 148B6599?
- Yes — the 148B6599 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 148B6599?
- The minimum order quantity is 1.
- Is 148B6599 available?
- Yes — 148B6599 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).