OFC

OFC type check and stop valve are designed for delivering a discharge solution that improves performance and reliability of oil-free centrifugal compressors with magnetic bearings by incorporating a damped check valve, while reliably and efficiently incorporating stop and diffuser functions.

Features and benefits

Nozzle check valve closes quickly if backflow
Gas damper and special opening characteristic prevents from violent movements in surge conditions
Damped nozzle check valve reduces chattering noises
Decoupled stop function from check function allows faster access and improves reliability of sealing
Lock ring design prevents from unintentional closing of the valve
Built-in sight glass gives direct visibility to proper valve functioning and refrigerant flow
Built-in pressure port provides connection to high pressure cut out
Built-in staging port on both sides to enable more flexibility in system designs and Bolt on to all TTS/TGS/TTH/TGH compressor discharge ports
Optimized flow path enhances flow capacity with lower pressure drop and Multiple orientations possible

OFC check and stop valves

Innovative discharge solution for oil-free chillers and heat pumps

Designed to address main oil-free applications pain points, the OFC valve improves system efficiency and reliability, while reducing complexity. This patented all-in-one valve incorporates a damp nozzle check valve, a stop valve and diffuser functions. It makes a perfect fit with Danfoss Turbocor® oil-free compressors.

View in 3D model

Product Highlights

Low pressure drop – high system efficiency
Performance at low flow conditions
Able to cover different conditions for startup, closing and operating
Prevention from reverse rotation and backflow, fast closure

Reliability in extensive surge applications
Protection against compressor and system limitations
Low sound for better customer perception
Embed 90° elbow to valve

No leakage especially during service
Can be put in a vertical line to save space horizontally