Line Blind Valves – Cam-Set®, Cam-Slide®, Cam-Goggle® & Stacey
The SchuF Group designs and manufactures a fast, easy-to-use and safety-conscious Line Blind Valve range. They are often refered to as spectacle blinds, figure of eights, or blinding systems.
A Line Blind Valve is permanently installed into a pipeline. The valve´s internal cam-mechanism allows to change the plate from open to closed position within a minute. As soon as the pipeline is drained the cam-mechanism can be opened by turning the screw (or hand wheel), now the spectacle plate can be turned and positioned and finally the cam-mechanism can be closed again by closing the hand wheel. For a more specific description please download our brochure.
Download our Product brochure and Dimension tables
Dimension Table or Cam-Sets
Their primary use is to completely close off the downstream portion of a pipeline in a safe way. They are frequently found in the Petrochemical, Steel, Pulp and Paper, Maritime and Oil & Refinery industries.They are often refered to as spectacle blinds, figures of eight, spectacle plates or paddle blinds.
Cam-Set Line Blinds installed in refineries and offshore, Photos: ©SchuF
Positive pipeline close/off is vital in many piping systems to assure the safety of personnel working on downstream equipment, particularly when flammable, toxic liquids or gases could seep past a closure. When visible proof of shut/off is necessary, a line blind is mandatory to comply with plant safety regulations. Available in three variants as Cam-Set, Cam-Slide or Stacey Line Blind Valves.
Cam-Set Side View Cam-Set Closed
SchuF Fetterolf Cam-Set, Photo: ©SchuF
Key Characteristics of the SchuF Cam-Set
- Absolute positive shut-off
- No spreading of pipe required
- Seal unaffected by piping misalignment
- Simple, one-man spectacle changing from one side of the line
- 316 SST as standard, other materials upon request
- Special anti-corrosive coatings such as epoxy, polyurethane and Sermetel ceramic are available if required