Refrigera Rotalock Valve. Accessories for refrigeration compressors (Refrigeration technology / Refrigeration compressors / Accessories and spare parts for refrigeration compressors). Principal data: rotalock connection 1 3/4", solder connection 1 1/8", working pressure max 45 bar. Supplied under manufacturer part number RV313436118, HS code 8481.80, country of origin China.