Pneumatic Triple Offset Butterfly Valve

Triple Offset Butterfly Valve

Triple Offset Butterfly Valve (TOV or TOBV)

• 1^stoffset :?The axis of the shaft is behind the center-line of the sealing point of the disc to seat.
• 2^ndoffset :?The axis of the shaft is eccentric to the center of the valve/pipe line
• 3^{rd ?}offset:The disc-seat contract axis. The seat surface takes a conical shape which coupled with the same shape at the ridge of the disc, results in minimal contact before full closure of the valve allowing the disc to seal against the seat with no friction.

Triple offset butterfly valve is more efficient and allows for less wear, and executed with a metal to metal seat designed to ensure perfect tightness in steam, gas, chemical, petrochemical and cryogenic applications. These valves are available in water type, lug type and double flange type.

• Low operating torque
• Perfect seal to outside
• Reduced pressure drop
• Body valve seat structure
• Excellent sealing properties
• 12 months quality warranty
• High sealing packing structure
• No friction between valve seat and disc
• A dial with an opening indication showing the position of the disc switch

For corrosive fluids, Water treatment, Chemical industry (acids, alkalines), Pharmaceutical/sanitary industry, Food industry, Beverageindustry, Paper industry, Pulp processing, Toxic and caustic media, Production of chlorine, Dyes manufacturing and processing.

1. Check the valve drive whether be flexible or not.
2. Clean the pipe with soft cloth and remove any dirt or debris before installation.
3. Install the triple offset butterfly valve stem to be rotated perpenedicular to the pipeline for facilitate maintenance.
4. Suggest install the valve to the place where is 1.2 meters away from ground for the convenience of valve operation.
5. There should leave enough spwace for valve operation and maintenance when triple eccentric butterfly valve is arranged side by side with pipeline.
6. The user should choose suitable studs and gaskets according the working temperature, pressure and medium. And tightens the nut diagonally with a fixed torque. The first tightening torque is about 2/3 of the required pre-tightening torque.
7. The inner diameter of the pipeline should be selected to ensure that the triple eccentric butterfly valve can be fully opened. When installing the valve, the flow direction mark on the valve body should be consistent with the actual flow direction.