Danfoss S.V08-V07 Rotalock Service Valve Set (7703010) | SZ/SM 175-185 Scroll | 1 3/8" + 7/8" ODF

Danfoss S.V08-V07 (Danfoss code: 7703010) is a two-piece rotalock (rotolock) service valve set fitted to Danfoss Performer scroll compressors. The set consists of one suction (large) and one discharge (small) service valve; it connects the compressor's suction/discharge ports to the system and provides service access (evacuation, charging, measurement, isolation). It is suitable for SZ/SM 175 and 185 series (seller designation SZ160/185) single scroll compressors.

Rotalock Service Valve Pair for Performer Scroll (Suction + Discharge)

The rotalock threaded side screws onto the compressor port, and the field tube is brazed to the ODF (copper solder) side. The set consists of two valves: V08 = 2 1/4" rotolock → 1 3/8" (35 mm) ODF (usually suction), V07 = 1 3/4" rotolock → 7/8" (22 mm) ODF (usually discharge).

Key Features

• 2-piece set: suction + discharge rotalock service valve
• V08: 2 1/4" rotolock thread → 1 3/8" (35 mm) ODF solder
• V07: 1 3/4" rotolock thread → 7/8" (22 mm) ODF solder
• Suitable for Danfoss Performer SZ/SM 175 - 185 single scroll compressors
• Service (evacuation/charging/isolation) and Schrader port access

Technical Specifications

• Brand / Model: Danfoss / S.V08-V07 (code: 7703010)
• Type: Rotalock service valve set (2 pcs: suction + discharge)
• V08 (suction): 2 1/4" rotolock → 1 3/8" (35 mm) ODF · single kit 8168025
• V07 (discharge): 1 3/4" rotolock → 7/8" (22 mm) ODF · single kit 8168032
• Suitability: Danfoss Performer SZ / SM 175, 185 single scroll compressors
• Contents: 2 valves (seal/gasket not included — order separately)
• Connection: Rotalock thread (compressor side) + ODF copper solder (tube side)
• Material: Forged brass body (typical)

Technician Tips

• Gasket sold separately: The set comes without gaskets; obtain the rotalock gasket set separately and replace it at every installation (for leak tightness).
• Tighten the rotalock nut to the manufacturer's torque value; overtightening crushes the gasket, undertightening causes leaks.
• Braze the ODF side under nitrogen; keep brazing heat from reaching the valve body and the gasket.
• Confirm the port size of your compressor model (SZ160/175/185) before installation.