Diaphragm Pump Filter Regulators

These easy-to-install filter/regulators provide the precise pressure control necessary to optimize pump performance and efficiency. They feature built-in moisture and particulate removal to 5 microns, analog pressure gauge, "locking" pressure control, and standard manual drain, with optional automatic drain available. The automatic drain option is recommended for long-term performance.


  • Broad Operating Parameters – Handles operating pressures from 7 psig to 125 psig and temperatures from 40 to 140°F.
  • Precise Pressure Adjustment – Locking adjustment knob provides precise and secure pressure control and allows for infinitely variable flow rates.
  • Quick Release Bayonet Polypropylene Bowl – Provides access to filter element with quick 1/4-turn of the bowl.
  • High Visibility Bowl Guard – Unique liquid level indicator allows monitoring up to 30 ft. away and 20 angles.
  • Embedded Pressure Gauge


Fits NDP-5, NDP-15, NDP-20

FR-3 and FR-3A

Fits NDP-25, NDP-32

FR-4 and FR-4A

Fits NDP-40


Fits NDP-50, NDP-80


Fits DP-10, DP-15


Fits XDP-40


Fits XDP-50, XDP-80


* The "L" designates lubrication, oil bottle included (not shown). 

DP-10, DP-15 and XDP series pumps are the only pumps which may require lube.

Max Flow Rate is 141 SCFM. For additional options, contact Yamada.



Air Inlet: 1/4"
Bowl Capacity: .9 OZ
Dimensions (IN.): 6.48 x 1.57 x 1.34
Net Weight: 0.79 lbs.
Max Flow Rate:  35 SCFM
Auto Drain Option: FR-1A
Air Inlet: 1/4"
Bowl Capacity: 1.9 OZ
Dimensions (IN.): 6.48 x 3.54 x 1.57
Net Weight: 1.46 lbs.
Max Flow Rate: 17 SCFM
Auto Drain Option: FRL-2A
Air Inlet: 3/8"
Bowl Capacity: 2.0 OZ
Dimensions (N.): 8.31 x 2.09 x 1.57
Net Weight: 1.23 lbs.
Max Flow Rate: 70 SCFM
Auto Drain Option: FR-3A
Air Inlet: 1/2"
Bowl Capacity: 6.0 OZ
Dimensions (IN:): 10.33 x 2.76 x 2.13
Net Weight: 2.54 lbs.
Max Flow Rate: 141 SCFM
Auto Drain Option: FR-4A
Air Inlet: 3/4"
Bowl Capacity: 6.0 OZ
Dimensions (IN:): 10.51 x 2.95 x 2.13
Net Weight: 2.67 lbs.
Max Flow Rate: 141 SCFM
Options: FR-5A & FRL-5A


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