Diaphragm Pump Filter Regulators

These filter/regulators are simple to set up and deliver the exact pressure regulation required to maximize pump efficiency and performance. They are equipped with inherent moisture and particulate elimination down to 5 microns, an analog pressure gauge, a "locking" pressure regulation system, and a standard manual drain. An optional automatic drain is also available, which is suggested for prolonged usage.

Key Features:

  • Wide Range of Operating Parameters – Can manage operating pressures ranging from 7 psig to 125 psig and temperatures between 40 and 140°F.
  • Accurate Pressure Adjustment – The locking adjustment knob ensures precise and secure pressure regulation and facilitates indefinitely variable flow rates.
  • User-friendly Polypropylene Bowl – Allows quick access to the filter element with just a 1/4-turn of the bowl.
  • High Visibility Bowl Guard – Features a unique liquid level indicator that enables monitoring from up to 30 feet away and at 20 different angles.
  • Integrated Pressure Gauge.

FR-1 & FR-1A

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

FR-3 & FR-3A

Fits NDP-25, NDP-32

FR-4 & FR-4A

Fits NDP-40

FR-5 & FR-5A

Fits NDP-50, NDP-80


Fits DP-10, DP-15


Fits XDP-40


Fits XDP-50, XDP-80

"A" designates Auto Drain.
"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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