Unigrind - SVS 1

Special Safety Relief Valve Seat Grinder

Unigrind - SVS 1

Compact (portable) grinder and grinder, used for repairing the sealing surfaces of safety valves (seats in safety valves) and valve disks in the factory.

Technical Description

  • Pneumatic motor for grinding tool rotation and eccentric spindle movement with infinitely speed setting
  • Infinitely adjustment of eccentric spindle movement, range 0 – 3 mm
  • Grinding time adjustable by timer
  • Grinding disk rotation clockwise while eccentric movement counter-clockwise
  • Spring loaded drive spindle for precise working pressure adjustment
  • Crosshatched grinding due to individually adjustable rotation speeds thus resulting in a perfect utilization of abrasives, absolute seat flatness and reproducible grinding results
  • Mirror finish valve seat surfaces
  • Because of the precise machine arm positioning to the seat centre, the pre-selection of working pressure, grinding time and abrasives there are no negative or indefinite influences involved (always
  • possible while doing grinding manually).
  • Working range: 3/8” – 12”  (10- 300 mm)
  • Seat diameter: min. 10 mm (¾") max. (6") 150 mm (mounted to stand)
  • Seat diameter: min. 100 mm (4") max. (12") 290 mm (with 3-jaw-chuck)
  • Submerging depth: 350 mm (13 ¾")

Applications

Portable grinding and lapping machine for working on seats in safety (relief) valves and Valve disks applicable on site (when butt-welded) or in shop
- On site use: Machine mounted to cover flange using 3-jaw-chuck also for precise Centring
- In shop use: Machine arm to be mounted to machine stand. The valve housing of the valve disks is mounted on the machine stand. Capacity up to dia. 320 mm (12 ½"); Precise centring achieved on table; User optimised pneumatic machine arm lifting system resp. lowering

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