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3-,5-,7- and 9-Bolt (BW) Model

Line Spread Type, Plate or Body Packed


Hamer Line Blind

Most Commonly used line blind valve.
bulletLong service
bulletMinimum maintenance requirements


Click for larger Picture
bulletSimple Operation: Spread the line with operating bolts using only a bar or pipe. Rotate spectacle plate and tighten again in seconds, without special tools (See A).
bulletCompact Design: Unique bolt head design allows installation and operation in limited space.
bulletPositive position indication: Visible portion of spectacle plate clearly indicates if valve is open or closed.
bulletPacking Variation: Wide range of packings are available to suit service requirements including spiral wound stainless steel for high temperatures. Body packing (See B) is standard but spectacle plate packing is optional.
bulletFull Flow:  Minimal turbulence occurs through full round port and pressure drop is negligible.
bulletMinimum maintenance: High quality alloy nuts and bolts have through bolt-to-nut lubrication feature (See D). Spectacle plate is plated for corrosion resistance on carbon steel blinds.
bulletEnd Connections: Available with but weld or flanged ends with optional B16.10 end-to-end dimensions.
bulletTime saving: Operate only a few bolts, instead of loosening and tightening 4 to 12 bolts on a standard flange. Reversing the plate usually takes less than a minute.
bulletSafety:  Absolute assurance of no downstream leakage. Alignment-locking pin is standard.




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