K501AMM4DMA0010
NUMATICS/AVENTICS MANIFOLD BLOCK
501 SERIES 4 STATION 5/32″ (4MM) TUBE SIDE PORTS DZB (PTY)

  • UM : EA

High flow rate 11mm pneumatic valve. 4 way solenoid air pilot actuated valves including double 3/2 function. Available in manifold with Fieldbus, compatible with all industrial protocols (DeviceNet, Profibus-DP) and leading Industrial Ethernet protocols (EtherNet/IP, EtherNet/IP DLR, Profinet).Standard Specifications:

  • Port Sizes: M7 Threads, 1/4, 6mm and 4mm Tubing with Push-In Fittings
  • 5 ported, 2 and 3 position, 4-way and double 3/2 rubber packed spool
  • Flow Capacity: 0.46 Cv (460 l/min (ANR)
  • Operating Pressure Range: Vacuum to 115 PSIG (Vacuum to 8 Bar)
  • Pilot Pressure Range: 29 to 115 PSIG (2 to 8 Bar)
  • Temperature Range (Ambient): 14 to 122 °F (- 10 to + 50 °C)

Valve Features:

  • Fieldbus Electronics and I/O Capable
  • Voltage: 24 VDC +/- 10%
  • Wattage: 0.8 W for DC Application
  • Internal wiring with PCB only
  • Simple conversion from internal to external pilot supply
  • IP65 Certified
  • Compatible with G3 and 580 Fieldbus Platforms

Panel Mount Options:

  • Elimination of tubing and connections
  • Adapter plate for direct mounting to cabinet walls
  • Stainless steel or aluminum plate for 8, 12 or 16 station manifolds
  • Shut of block for individual valve to be isolated from pressure supply during operation and repair
  • Mid Station Supply Manifold block allows for multiple pressure zones (with blocking discs) or additional air supply to a manifold

Manifold Block, For Use With Mark 15 Series Valves, Number of Valve Stations 1, Valve Port Size 3/8 in, Cv 1.5, Solenoid Valve Manifold, Mark 15 Series, Length (In.) 4 9/16 in, Width (In.) 2 5/16 in, Height (In.) 2 5/8 in, Includes Assembly Hardware & Gasket

 

Troubleshooting Pneumatic Systems: Leaking Manifold Valves

Pneumatic Maintenance Situation

A machine operator running an automated assembly machine notices air leaking from the exhaust port of a 5-station valve manifold and notifies the maintenance team.

A maintenance technician does confirm that compressed air is constantly leaking from the one of the exhaust ports of the valve manifold.

He shuts off the main air going to the machine and replaces one solenoid valve at a time trying to find the defective solenoid valve.

After turning the main air on/off each time he replaces a valve, the valve manifold is still leaking air from the exhaust port after replacing all 5 solenoid valves.

So why is the valve manifold still leaking from the exhaust port???

Pneumatic Air Leak Detection

99.9% of the time, if air is leaking from an individual air valve or air valve manifold, it is because you have a bad seal on an air cylinder or rotary actuator.

So, in the example above, with a worn or damaged piston seal (#1) the compressed air that is holding the air cylinder in the retracted position is leaking pass the piston seal into the rear part of the air cylinder (#2) though the air valve and out the exhaust port EA (#3).

The best way to figure out if the valve is bad or you do have a bad piston seal is to use a pair of needle nose pliers and pinch off the tubing that is going to each of your air cylinders. This is especially true if you have a large valve manifold with several pneumatic actuators on the machine. Start at one end the manifold and go to each station and start pinching off the tubing. Once the air leak stops, then you found the leaking air cylinder.

If you have questions regarding this article or questions about your pneumatic application, please e-mail me at

Congratulations To August’s Quiz Contest Winner: Mike McClean

August’s quiz was a contest asking readers why the valve manifold was still leaking from the exhaust port? Mike McClean answered, “Likely one of the attached cylinders has blow-by on the piston seal.” Mike won a $25 Amazon gift card. Congratulations!

 asks readers how to prevent hard stops when a cylinder travels to a home position. Please join our conversations and provide your answers. Next month’s article will share the best-practice for pneumatic system design and the quiz contest’s winner. Good luck!

 

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