Available in emergency pressure only and emergency pressure and vacuum relief models.
Cast metal cover provides added strength and extended life.
Hinged cover provides a fixed pivot point, ensures proper reseating and added safety.
Cover cannot separate from the base.
Easily lifted open to provide a large, unobstructed passage for easy tank access.
221PV incorporates a spring loaded vacuum relief valve integral to the cover assembly.
Weather hood and screen provided for protection.
Non-metallic seat insert on the pallet minimizes leakage.
Durable reinforced fabric diaphragm type pressure side seating surface backed by compressible, cellular non-metallic pads for added cushion and reduced leakage.
Optional materials available to suit most chemical applications.
Talk to one of our experts about your immediate needs and ask how we can improve your operation's reliability, productivity, and profitability.