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300 mm), heavy actuators (pneumatic, electric, etc.), or with the valve installed horizontally (B) or at an angle (C) on a horizontal pipeline, the installation will require the construction of suitable supports. (See the following diagram and consult the technical department at Orbinox). .

2004 EDITION VP-4/9 www.orbinox.com MODEL VP B B C C C* A* C* * For these positions please consult Orbinox. In vertical pipelines, the construction of suitable supports is always required (for further information please consult the technical department at Orbinox). Once the valve is installed, test that the flanges have been fastened correctly and that all electrical and/or pneumatic connections have been properly made. Where electric accessories are mounted on the valve (i.e. solenoid valves, electro-pneumatic positioners, etc.), the valve must be earthed correctly before being put into operation. First, operate the valve with no flow in the pipeline. Then test operation and valve seal with flow. It should be noted that the packing material might settle in shipping/storage, which can cause minor leakage. This can be remedied by tightening the gland follower (5) during installation. Once performance has been tested, the valve can be put into operation. 3.- ACTUATORS 3.1.- Handwheel To open the valve turn the handwheel (12) anticlockwise. To close turn the handwheel clockwise. 3.2.- Lever To operate the valve with this device, first loosen the locking clamp located on the top of the yoke (9). Then either open or close the valve by moving the lever in the desired direction. Finally, fix the position of the lever with the locking clamp. .

2004 EDITION VP-5/9 www.orbinox.com MODEL VP 3.3.- Pneumatic Valves are usually supplied with a double acting pneumatic actuator although, upon request, we can supply single-acting actuators. In both cases, the inlet air pressure should be, between 3,5 to

10 Kg/cm

2 . It is essential for a good maintenance of the cylinder that air should be well dried, filtered and lubricated. It is recommended to actuate the cylinder 3-4 times before the start up, once it is installed in the pipeline. 3.4.- El........