33 12 16.26 - 001-A - Response AAN-ANR Butterfly Valves - Garney ...
33 12 16.26 - 001-A - Response AAN-ANR Butterfly Valves - Garney ... 33 12 16.26 - 001-A - Response AAN-ANR Butterfly Valves - Garney ...
24”-48” HP250II Butterfly Valve Functional Description Round butterfly valve discs rotate 1/4 turns to provide tight shutoff in air or water pipelines. The valves can be used to regulate flow rate by positioning the disc between 15 and 90 degrees open. Manually Operated Valve Manually operated butterfly valves are powered with gear actuators, which convert multiple handwheel, chainwheel or nut input turns into 1/4 turn valve operation. The travel of the valve disc is limited by physical stops in the actuator housing. WARNING Forcing the handwheel, chainwheel or nut against the stops will not provide tighter shutoff of the valve and may damage the actuator. Only actuator adjustments will affect valve shutoff. Motor Operated Valve Motor operated butterfly valves are powered with gear actuators, which convert multiple motor input turns into 1/4 turn valve operation. The travel of the valve disc is limited by limit switches in the motor housing and physical stops in the actuator housing. Valve shutoff is affected by limit switch and physical stop settings. WARNING Improperly set limit switches and/or physical stops may damage the motor and/or actuator. Cylinder Operate Valve Hydraulically operated butterfly valves are powered with a gear box and double acting cylinder. The linear stroke of the cylinder is converted to 1/4 turn operation by the gear box. Auxiliary controls are provided to direct hydraulic power to the cylinder and to control the operating speed of the cylinder. Document #: 2448HP250IIOM Revision Date: 1/10/11 4
24”-48” HP250II Butterfly Valve INSTALLATION GENERAL Valves are a significant component of any piping system. Failure due to faulty installation, improper operation or maintenance in such systems could result in damage, down time and costly repairs. In buried underground installations, problems or malfunctions can result in extensive, costly unearthing operations to correct the problem. Many problems with valves can be traced to improper installation, operation, or maintenance procedures. UNLOADING Inspect valves on receipt for damage in shipment and conformance with quantity and description in the shipping notice and order. Carefully unload all valves to the ground without dropping using fork trucks or slings under skids. Do not lift valves with slings or chain around operating shaft, actuator, or through waterway. Instead, lift valves with eye bolts or rods through flange holes. STORAGE Whenever practical, store valves indoors. If not, protect valves and actuators from weather and accumulation of water, dirt, rocks and debris. When valves fitted with power actuators and controls are stored, energize electric actuator or otherwise protect electrical control equipment to prevent corrosion of electrical contacts due to condensation resulting from temperature variation. Do not expose rubber seats to sunlight or ozone for any extended period. Valves should be stored with the valve disc or closure member slightly open. INSPECTION PRIOR TO INSTALLATION Make sure flange faces and joint sealing surfaces, body seats and disc seats are clean. Check bolting attaching actuator to valve for loosening in transit and handling. If loose, tighten firmly. Open and close valve to make sure it operates properly and that stops or limit switches are correctly set so that the valve seats fully. Check that valve rotation direction is correct and close valve before installing. INSTALLATION The following items must be performed during installation to ensure proper function. • Carefully place valves into position avoiding contact or impact with other equipment, vault walls or trench walls. Document #: 2448HP250IIOM Revision Date: 1/10/11 5
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24”-48” HP250II <strong>Butterfly</strong> Valve<br />
INSTALLATION<br />
GENERAL<br />
<strong>Valves</strong> are a significant component of any piping system. Failure due to faulty installation, improper operation<br />
or maintenance in such systems could result in damage, down time and costly repairs. In buried underground<br />
installations, problems or malfunctions can result in extensive, costly unearthing operations to correct the<br />
problem. Many problems with valves can be traced to improper installation, operation, or maintenance<br />
procedures.<br />
UNLOADING<br />
Inspect valves on receipt for damage in shipment and conformance with quantity and description in the<br />
shipping notice and order. Carefully unload all valves to the ground without dropping using fork trucks or slings<br />
under skids. Do not lift valves with slings or chain around operating shaft, actuator, or through waterway.<br />
Instead, lift valves with eye bolts or rods through flange holes.<br />
STORAGE<br />
Whenever practical, store valves indoors. If not, protect valves and actuators from weather and accumulation<br />
of water, dirt, rocks and debris. When valves fitted with power actuators and controls are stored, energize<br />
electric actuator or otherwise protect electrical control equipment to prevent corrosion of electrical contacts due<br />
to condensation resulting from temperature variation. Do not expose rubber seats to sunlight or ozone for any<br />
extended period. <strong>Valves</strong> should be stored with the valve disc or closure member slightly open.<br />
INSPECTION PRIOR TO INSTALLATION<br />
Make sure flange faces and joint sealing surfaces, body seats and disc seats are clean. Check bolting<br />
attaching actuator to valve for loosening in transit and handling. If loose, tighten firmly. Open and close valve<br />
to make sure it operates properly and that stops or limit switches are correctly set so that the valve seats fully.<br />
Check that valve rotation direction is correct and close valve before installing.<br />
INSTALLATION<br />
The following items must be performed during installation to ensure proper function.<br />
• Carefully place valves into position avoiding contact or impact with other equipment, vault walls or trench<br />
walls.<br />
Document #: 2448HP250IIOM Revision Date: 1/10/11<br />
5
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