Sporlan OVE-20-CP100 Thermostatic Expansion Valve – 70 kW / 20 Ton, R407C

Sporlan OVE-20-CP100, R407C / R22 refrigerant-specific externally equalized thermostatic expansion valve (TXV). With 70 kW (≈20 ton) nominal capacity, it regulates the liquid feed to the evaporator according to the suction line superheat. It has a CP100 thermostatic charge, and thanks to its external equalizer connection it also opens correctly on evaporators with a high pressure drop.

Sporlan TXV: The Field's Reference Valve

• 70 kW nominal capacity — verify the selection against the Sporlan capacity table for your evaporating/condensing conditions.
• Externally equalized: A design required for evaporators with distributors and long coils.
• Replaceable power element: On Sporlan bodies the thermostatic head can be replaced separately; the charge is changed without removing the body.

Technical Specifications and Installation Notes

• Model: Sporlan OVE-20-CP100 | Type: TXV, externally equalized
• Capacity: 70 kW / ≈20 ton (nominal)
• Refrigerant: R407C / R22 | Charge: CP100
• Connection: Inlet 7/8" ODF / Outlet 1 1/8" ODF — ODF brazed

• 🔧 Attach the sensor (bulb) to the suction line at the 3-4 o'clock position firmly and insulate it; a loose sensor makes the valve overfeed.
• Take the external equalizer line 15-20 cm after the sensor, from the top of the suction line.
• Cool the body with a wet cloth while brazing — the power element charge is damaged by heat.
• Do not move the superheat setting far from the factory value; in case of instability, first check the refrigerant charge and sensor contact.