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5466-425 WOODWARD

Brand:  WoodWard

Model number:5466-425 

Colour:new                  

Warranty: 12 months

Lead Time:3-day working day   

Country of origin: USA Price: Please contact us         

Product weight:0.85kg

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

5466-425   WOODWARD

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Products Name: 5466-425 WOODWARD

PRODUCT DESCRIPTION

Woodward has launched hardware and software updates to address many CIP requirements; however, complete NERC/CIP compliance involves more than the controls and is dependent on plant infrastructure and procedures. The physical security remains the user’s responsibility.

Benefits:


The schematic arrangement of the 3161 governor is shown in Figure 3-1, with 

the governor pilot valve calling for increased fuel. The 3161 governor has a selfcontained oil supply (approximately 2.3 US qt/2.2 L). The oil passes from the 

suction side to the pressure side of the gerotor pump as the drive shaft is rotated 

by the prime mover. Pump pressure is regulated at approximately 100 psi (690 

kPa) by the accumulator spring and piston. As the pressure increases, the 

accumulator piston moves up in the cylinder until 100 psi (690 kPa) is obtained. 

At this time, bleed ports in the piston are uncovered, and pump pressure is 

regulated. 

The pressure generated by the accumulator, determines the work capabilities of 

the governor. Pump pressure is also used for the auxiliary devices installed on 

the cover. 

Increase in Speed Setting 

Rotating the speed setting shaft clockwise (CW) increases the speed setting of 

the governor. (The high speed stop screw limits the high speed setting of the 

governor.) As the speed setting shaft rotates, the speed setting lever pushes 

down on the floating lever which is attached to the speeder plug. The downward 

pressure on the speeder plug compresses the speeder spring and overcomes 

the centrifugal force of the ballhead flyweights to lower the ball-head pilot valve 

plunger (pvp), increasing speed setting of the governor. 

When the pvp is lowered, pressure oil moves under the power piston causing it to 

move up, lifting the terminal lever and rotating the output shaft towards the 

increase direction. Even before the prime mover has reached the new set speed, 

the compensation system starts to re-center the pvp. As the power piston moves 

up, the oil on top of the power piston is forced out to the buffer piston and to the 

lower side of the compensation land on the pvp. The change in force on the two 

buffer springs tends to resist the movement of the buffer piston, causing a slightly 

higher oil pressure on the upper side of the buffer piston, with this pressure being 

transmitted to the bottom side of the pvp compensation land. The difference in 

pressures on the two sides of the compensation land produce a force which acts 

to push the pvp back to its centered position. 

Leakage, of oil through the needle valve orifice equalizes the pressures above 

and below the compensation land, and allows the buffer piston to re-center 

during speed changes. As the pressures above and below the compensation 

land become equal, the buffer springs return the buffer piston to its centered 

position. 

Decrease in Speed Setting 

Rotating the speed setting shaft counterclockwise (CCW) decreases the speed 

setting of the governor (the low speed stop screw limits the low speed setting of 

the governor). As the speed setting shaft rotates CCW, the force of the speed 

setting lever on the floating lever is removed and the compression is reduced 

from the speeder spring. Centrifugal force from the flyweights raises the ballhead 

pilot valve plunger (pvp), uncovering the control port in the rotating bushing. 

Control oil under the power piston now drains to sump, allowing the power piston 

to move down. The output shaft rotates in the decrease direction, and the speed 

(rpm) of the prime mover is decreased. The compensation system then brings 

the governor under stable control.


5466-425   WOODWARD

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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