Superior 900ma-11s Inline Check Valve 1 1/8 in Ods

Product Description

The SUPERIOR 900ma-11s is an inline check valve designed for refrigeration systems requiring a 1 1/8 inch ODS connection. Check valves of this type allow refrigerant flow in one direction only, preventing backflow that can damage compressors and disrupt system operation. This valve is typically installed by licensed refrigeration or HVAC technicians as part of a refrigerant circuit on commercial or industrial refrigeration equipment. Its inline configuration integrates directly into copper suction or liquid lines using standard ODS (Outside Diameter Sweat) fittings.

This inline check valve is suited for refrigeration and air conditioning applications where backflow prevention is required in the refrigerant circuit. The 1 1/8 inch ODS connection size makes it appropriate for medium to large commercial refrigeration systems, including walk-in coolers, reach-in cases, and similar equipment. Installation typically occurs on suction or discharge lines where reverse flow could compromise compressor or system performance.

Key Features

• Inline check valve design allows one-directional refrigerant flow and prevents backflow
• 1 1/8 inch ODS connection for direct sweat-fit installation into copper refrigerant lines
• Inline body style simplifies integration into existing refrigerant piping runs
• Suitable for commercial refrigeration system applications

Compatibility

Designed as an OEM-style replacement inline check valve for commercial refrigeration systems using 1 1/8 inch ODS copper line connections. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation should be performed by a licensed HVAC or refrigeration technician holding the appropriate EPA Section 608 certification. Recover all refrigerant from the system before cutting into any refrigerant line. The valve must be oriented correctly to match the intended direction of refrigerant flow, as marked on the valve body. Follow all applicable local codes and manufacturer guidelines when brazing ODS fittings into the refrigerant circuit.

Technical Specifications

• Connection Type: 1 1/8 inch ODS (Outside Diameter Sweat)
• Valve Type: Inline Check Valve

Standard Information

• Brand: SUPERIOR
• Manufacturer Part Number: 900ma-11s