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Charlotte Stonestreet
Managing Editor |
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Effortless interlock adjustment
16 June 2014
Interlocks on handwheel-operated valves usually require several full revolutions between the locked open and locked closed positions. This means handwheel operated interlocks need to be able to ‘count’ the number of turns in order to release keys in the required open and/or closed positions. Similarly, with gate and globe valves, the closed position can vary through the effects of valve seat wear.
Smith Flow Control’s (SFC’s) GL Interlocks are ideal for this scenario as they can be adjusted in-situ in a matter of minutes simply by operating the valve back to the original key release position in two easy steps:
1. Using the special tamperproof tool (provided), the interlock cover is removed and the set screws adjusted
2. The valve is then operated again to its shut tight (closed) position and the screws are retightened (reset) in the new position.
- REGULATE FLOW
- FLOW CONTROL PRODUCT SEALS
- Verify Flow Controllers
- FUEL SAVINGS OF UP TO 30%
- ACCURATE POSITIONAL PERFORMANCE
- LARGE VALVE POSITIONER
- Fuel-cell race car relies on Bürkert valve technology
- Affordable Valve Management
- Multi-Finction Filtration Controller
- Air Flow & Pressure Switching Point Adjustment
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