1/2 NPT 15 GPM Prince WNV-800 Needle Valve

Item Number: 9-7961-8

Price: $36.45
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1/2 NPT 15 GPM Prince WNV-800 Needle Valve

1/2 NPT 15 GPM Prince WNV-800 Needle Valve

item number: 9-7961-8 PRICE: $36.45 84 In Stock Regular Stock Item

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1/2 NPT 15 GPM Prince WNV-800 Needle Valve
Item Number: 9-7961-8
Price: $36.45
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* UPS 3-Day, 2-Day, and Next Day orders entered before 1pm (CST) Mon-Fri will be shipped the same day. Orders entered Sat or Sun will be shipped the following Monday.
  • This item is on page 36 of our current catalog
Brand new, WOLVERINE by PRINCE model WNV-800 inline needle valve. Designed to provide flow control in both directions. Carbon steel body.

  • Flow Rate 0-16 GPM
  • Pressure 5000 PSI max.
  • Ports 1/2" NPT
  • Size 3-7/16" x 1-1/4" x 5-1/8"
  • Shpg. 3 lbs.
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Showing Questions of 5

Can this be used to fine tune the speed of a hydraulic motor?

A: No this not made to fine to a hydraulic motor.

I'm using a direction control valve to switch between two cylinders. When I switch cylinders the extend line is a returns to the tank should I use the needle vale in the return line or the extend line or both?

A: If both are single-acting cylinders attached to the same moving piece and extend on one creates retract force on the other so that they function as one double-acting cylinder; one valve can be put in one of the lines and it will restrict both fluid pathways. If this is not the case, please contact our Product Support department to further describe your application.

I am trying to slow both directions on a two way cylinder. Do I need one of these needle valves on both lines or will it work just on one??

A: One of these valves will slow a cylinder in both directions when placed in one of the work lines to that cylinder.

When installing this item inline to slow down a front end loader should it be placed in the return line to the pump? It is a front mounted crankshaft unit.

A: It is not recommended to place this in the main pressure line to the valve, or the return line to the pump. This is meant to go between a work port and an actuator. Restricting the return line can lead to excessive pressure in the low pressure passages in the valve, excessive pressure in the pump, cavitation of the pump, among other problems.


A: We do not sell a nut for bulkhead installation of this valve. Typically this valve is placed inline.

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1/2 NPT 15 GPM Prince WNV-800 Needle Valve
Item Number: 9-7961-8
Price: $36.45
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1/2 NPT 15 GPM Prince WNV-800 Needle Valve
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