• Aluminium alloy body internally and externally hard anodised.
• End caps oven-treated with ultra-thick polyurethane paint.
• Reversible action and modification of spring set without any special equipment while on site.
• Piston guide bearings with wide contact surfaces, increase efficiency and cycle life.
• Independent open and closed adjustment (standard across the whole range illustrated) is indispensable where
different valve sealing systems are involved.
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