Air Operated Double Diaphragm / Special Duty / High Pressure

High Pressure Pumps Provide Enhanced Power in Applications Where Pressure is Paramount

Air-Powered Single Diaphragm High Pressure Metallic Pumps deliver discharge pressure twice the inlet pressure, up to 250 PSI (17.2 BAR). Designed for filter press feed and applications requiring higher discharge pressures. Available in Aluminum, Cast Iron and Stainless Steel with various elastomer options. The Blagdon N25 and N50 High Pressure Pumps provide enhanced power in applications where pressure is paramount and flow rate is an issue. Using two air chambers to double the air per stroke, these pumps achieve discharge pressure up to 238 PSI (16 Bar) with flow rates as high as 30 gallons per minute for N25 and as high as 90 GPM (341 LPM) with N50.

Maximum Flow Control

High pressure capabilities allow for optimum control.

Heavy Duty

Bolted construction and made with robust materials.

Unique Orientation

Single end discharge and suction available.


Tested to ensure the long lasting performance.

Non-Freezing, Non-Stalling

Patented air valve will never unexpectedly stop.

Performance Capabilities

High Pressure Duty Metallic

Details Pump Materials Elastomers
Image Model Flow ATEX Port CP PP K NY CA AL CI SS HC CV N B E **V T H S PU
EH2-M 0 TO 235 lpm * 2"   * * * * * * *   View More
SH2-M 0 to 235 lpm * 2" * *   * * * *       View More
GH2-M 0 to 235 lpm   2"   * *   *   * *     View More
N25 0 to 114 lpm * 1"     *     * *   View More
N50 0 to 476 lpm * 2"   *     * View More
CP=Conductive Plypropylenetd> CV=Conductive PVDF SS=Stainless Steel E=EPDM S=Santoprene
PP=Polypropylene CA=Conductive Acetal HC=Alloy C V=FKM** PU=Polyurethane
K=PVDF AL=Aluminium N=Neoprene T=Virgin PTFE NY=Nylone
CI=Cast Iron B=Buna H=Hytrel
#ATEX 100a Compliant

I M2 c T5

* Sealless
* Handles Abrasive
  And Corrosives

* Self Priming
* Moves Heavy

*Infinitely Variable    Flow
* Runs Dry Without

* Deadheads
  No Bypass Needed
* No Meters

* Groundable
* Gentel to shear
  Sensitive Materials

* Available with BSP
 (Tapered) or PN 10
 Flange Connections