Danfoss REG-SB 20 angleway hand regulating valve, 20 mm (3/4 in) butt weld ASME B 36.10M Schedule 80, 52 bar, steel
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Product Description
Danfoss REG-SB 20 hand-operated regulating valve for the SVL Flexline industrial-refrigeration range, code 148B5303. The REG-SB is a manually-operated, globe-pattern regulating (throttling) valve used to set and hold a fixed flow in liquid, suction and hot-gas lines. It carries the B cone (higher capacity); the cone is positioned on the spindle and read against an outer scale for repeatable manual setting, and the vented cap can be exchanged for a hand wheel. This SKU is the angleway body in 20 mm (3/4 in) butt-weld connections to ASME B 36.10M Schedule 80. Flow coefficient Kv 5 m3/h (Cv 5.8 gal/min). Maximum working pressure 52 bar (754 psig); media temperature range -60 to 150 C (-76 to 302 F). Cold-resistant steel housing 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. REG-SA and REG-SB differ only in cone characteristic; select REG-SA for fine regulation and REG-SB for higher capacity at the same nominal size.
Technical Specifications
- Type
- REG-SB 20 (SVL Flexline hand regulating valve)
- Code number
- 148B5303
- Series
- REG-SB (SVL Flexline)
- Function
- Hand-operated regulating / throttling valve (globe pattern)
- Cone characteristic
- B cone (higher capacity)
- Nominal size
- 20 mm (3/4 in)
- Flow direction body
- Angleway
- Connection
- Butt weld (ASME B 36.10M Schedule 80)
- Housing material
- Steel (cold-resistant)
- Kv value
- 5 m3/h (Cv 5.8 gal/min)
- Setting
- Spindle scale, vented cap (hand wheel optional)
- 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
- Conformity assessment
- PED Article 4, paragraph 3 (sound engineering practice) for DN <= 25
- Approvals
- CE, EAC
- Net weight
- 1.651 kg
- EAN
- 5702428473668
- Product group
- Shut-off and regulating valves
- Approval
- CRN
- Body material
- Steel
- CE mark
- Yes
- China RoHS compliance
- Yes
- Colour Paint
- Reddish brown
- Connection material
- Steel
- Connection standard
- ASME B 36.10M SCHEDULE 80
- Cv value [gal/min]
- 5.8 gal/min
- Direction
- Angleway
- Equipment
- Cap
- EU RoHS compliance
- Yes
- Flow area [in2]
- 0.178 in²
- Flow area [mm2]
- 115 mm²
- Flow direction indicator
- Embossed 1-way arrow
- Fluid Group
- 1
- Inlet connection size [in]
- 3/4 in
- Inlet connection size [mm]
- 20 mm
- Inlet connection type
- Butt weld
- Kv value [m³/h]
- 5 m³/h
- Max. Working Pressure [bar]
- 52 bar
- Max. Working Pressure [psig]
- 754 psig
- Neck
- Standard
- Outlet connection size [in]
- 3/4 in
- Outlet connection size [mm]
- 20 mm
- Outlet connection type
- Butt weld
- PED category
- Art. 4, par. 3
- 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
- Valve version
- Standard version
Standards & Compliance
- Size / Series
- 20 mm
- Material
- Steel
- Pressure Rating
- 52 bar
- Temperature Range
- -60 to 150 C
- HS Code
- 8481.80
Compatibility & Fitment
Danfoss SVL Flexline REG-SB hand regulating valve. Select by cone characteristic (REG-SA = A cone fine regulation; REG-SB = B cone higher capacity), nominal size (20 mm / 3/4 in), body (angleway) and connection standard (ASME B 36.10M Schedule 80 butt weld). EN 10220 (DIN) and ASME B 36.10M weld-end preparations are not interchangeable — confirm the mating pipe schedule before ordering. The angleway body has inlet and outlet at 90 degrees; where an in-line fit is required use the straightway version of the same size. Shares the SVL Flexline platform with SVA-S/SVA-L shut-off valves and CHV-X/SCA-X check valves; spare parts are common to the platform.
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: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 148B5303?
- 148B5303 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 148B5303.
- What is the HS code for 148B5303?
- The customs tariff (HS) code for 148B5303 is 8481.80.
- Who manufactures 148B5303?
- 148B5303 is a Danfoss product in the HVAC & Refrigeration range.
- Is a datasheet available for 148B5303?
- Yes — the 148B5303 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 148B5303?
- The minimum order quantity is 1.
- Is 148B5303 available?
- Yes — 148B5303 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).