The ZGV fully body linning butterfly valve utilizes a fully elastomer lined body, centered shaft design, in the 2 to 40 inch size range. Which is designed for the multitude of moderately corrosive applications throughout the industry, these items use a spherically machined disc that is totally isolated from the flowing media by means of the inner elastomer lining. A strong shaft-disc connection is provided by an exclusive splined shaft arrangement for precise positioning and reliable operation.

The ZGV fully PFA (Teflon) lined butterfly valve is designed for aggressive chemical and ultra-pure applications. PFA Teflon  resists chemical attack from most known chemical compounds, and with a flexible liner design utilizing a full width, 360 degree, resilient back up liner offers bubble tight shut off in even the most demanding installations.  Redundant shaft seals provide a tight, reliable seal to the environment. This is a “maintenance free” valve design which uses long life sleeve bearings and avoids the use of an adjustable packing gland.

The ZGV fully body linning butterfly valves are mostly used in non-corrosive and moderately corrosive applications such as 50% caustic soda, 98% sulfuric acid, seawater, cooling water, river water, de-mineralized water, utility services, hydrogen gas, brown pulp stock, weak black liquor, white liquor,  high chloride content limestone slurry in FGD (flue gas de-sulfurization),  and others.

The ZGV full body linning butterfly valves are gradually replacing gate, plug and ball valves in many different applications, where tight sealing and reliability are a main concern.

ZGV FULLY BODY LINED BUTTERFLY VALVE MAIN DESIGNNING FEATURES:
» Low pressure drop
» Bubble tight shut off
» Blow-out proof shafts
» Minimal required torque
» Economical use of body materials
» Minimal overall dimensions and weight
» Maintenance free design and materials
» All valves (100%) factory leakage tested
» Optional Direct mounting pad to ISO 5211
» Reliable, absolute tight sealing at all critical points
» Strong internal shaft disc connection, isolated from the flowing media
» Broad line of body materials to meet different requirements