Sanhua SHF-50021 4-Way Reversing Valve | ~227 kW R410A | 1 5/8" + 2 5/8" ODF | Coil Sold Separately

Sanhua SHF-50021 (engineering code SHF(L)-210-1321) is a pilot-operated 4-way reversing valve that switches between cooling ↔ heating by changing the refrigerant flow direction in heat pumps and reversible systems. It is one of the largest bodies in the SHF series: 210 kW class — selectable up to 227 kW with R410A (ΔP 0.1 bar) and up to 321 kW at higher pressure drop.

4-Way Reversing Valve for High-Capacity Heat Pumps

The 4-way reversing valve swaps the evaporator ↔ condenser roles between the indoor/outdoor units by changing the direction of the compressor discharge gas; a single circuit provides both cooling and heating. It is a standard part of rooftop units, chillers and large commercial heat pump units. Pilot coil NOT INCLUDED — order separately according to voltage (the Sanhua SHF coil is suitable for TR 220-240 V).

Technical Specifications (Official Sanhua Datasheet)

• Model: Sanhua SHF-50021 | Engineering Code: SHF(L)-210-1321
• Capacity (tc 38°C / to 5°C, ΔP 0.1 bar): R410A 227 kW · R407C 188 kW · R404A/R507 161 kW · R134a 147.5 kW
• Kv Value: 84.4 m³/h | Port Diameter: 50 mm
• Connections (ODF brazed): D (discharge) 1 5/8" · E/S/C 2 5/8"
• Max. Working Pressure (PS): 45 bar — suitable for current HFC refrigerants including R410A
• Size / Weight: L 452 · A 135.6 · B 148.7 · C 198 · F 71.5 · G 63 mm · 8.7 kg | PED Category I — official dimensional drawing in the 2nd image (F-type body)
• Compatible Refrigerants: R410A, R407C, R404A, R507, R134a, R22

• 🔧 Cool the body with a wet cloth while brazing and keep the flame away from the slide area — the internal Teflon slide is damaged by heat.
• Mount the valve horizontally (coil on top); the mounting orientation must match the flow diagram on the body.
• Verify capacity against ΔP when selecting: the same valve delivers 227 kW at a 0.1 bar drop and 321 kW at a 0.2 bar drop (R410A).