Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20Australian Pipeline Valve - Installation, Operation and Maintenance Manual 6 LINED BUTTERFLY VALVES - MODEL 2014 & 2016 SERIES 13. Lever-lock handles are not recommended for use on 200 NB (8”) and larger valves unless very low pressures. 3 . 0 G E N E R A L I N S T A L L A T I O N 1. Make sure the pipeline and pipe flange faces are clean. Any foreign material such as pipe scale, metal chips, welding slag, welding rods, etc., can obstruct disc movement or damage the disc or seat. 2. Elastomer seats often have integral moulded O-ring ribs on the face of the seat (where required in harder compunds). As a result, no gaskets are required as these O-ribs serve the function of a gasket. Softer rubber compounds do not have integral moulded O-rings but do not require them due to the pressure rating of valve. 3. Align the piping and then spread the pipe flanges a distance apart so as to permit the valve body to be easily dropped between the flanges without contacting the pipe flanges (see Figure 4). 4. Check to see that the valve disc has been positioned to a partially open position with the disc edge about 6.3 mm to 9.5 mm from the face of the seat, approximately 10° open (see Figure 4). 5. Insert the valve between the flanges as shown below, taking care not to damage the seat faces. Always pick the valve up by the locating holes or by using a nylon sling on the neck of the body. Never pick up the valve by the actuator or operator mounted on the top of the valve. 6. Place the valve between the flanges, centre it, and then span the valve body with all flange bolts, but do not tighten the bolts, Carefully open the disc to the full open position, making sure the disc does not hit the adjacent pipe I.D. Now systematically remove jack bolts or other flange spreaders and hand tighten the flange bolts as shown in Figure 7. Very slowly close the valve disc to ensure disc edge clearance from adjacent pipe flange I.D. now open the disc to full open and tighten all flange bolts per specification as shown in Figure 6. Finally, repeat a full close to full open rotation of the disc to ensure proper. 7. 2014 and 2016 series butterfly valves are bi-directional. 8. Superseal butterfly valves are designed to operate between two flanges. For ‘dead end service’ a lugged style valve is recommended. The valve should still be placed between two flanges, except the end flange should be an open flange not a blind. Otherwise a special dead end service design valve is required. Lined valves are not recommended for steam service or for service where a firesafe valve is required. Do not install EPDM liner in compressed air lines or in lines containing any hydrocarbons. Viton liners are not recommended for hot water.