ADT938 Handheld Hydraulic Pressure Test Pump

ADT938 Hydraulic Pressure Calibration Test Pump by AdditelWater: -14psi to 15,000psi

The Additel ADT938 is specially designed for calibrating oil-free pressure measuring instrument in the range from 85% vacuum to 15,000 psi (1000 bar). It can be used in calibrating oil-free pressure gauges, transmitters, or other pressure measuring instruments in aerospace, pharmaceutical, or food industries.    

    For oil-free pressure instruments 
    Minimal maintenance 
    Three pressure ports 
    Hand-tight quick connectors
With the patented screw press technology, high pressures can be easily generated, as well as increased and decreased smoothly. With no check valve (non-returning valve), Additel's Hydraulic Pressure Test Pumps avoid the troublesome leakage issues that is usually experienced with most hand pumps and allows for minimal maintenance. Two hand-tight quick connectors installed on the pump allow easy connecting and disconnecting to the test pump without the need for PTFE tape or wrenches. The Additel Hydraulic Pressure Test Pumps are an ideal comparison test pump for calibrating pressure measuring instruments such as test gauges, indicators or transducers in the field or laboratory.

Ordering Info
Video Demo

High Pressure
Generates pressure up to 15,000 psi (1000 bar)

Durable and Minimal Maintenance
Patented screw press technology, with no check valve (non-returning valve) inside that is usually used on troublesome hand pumps.

High pressures can be generated easily, as well as increased and decreased smoothly.

Extremely Low Leakage
Patented screw press technology replaces troublesome check valves (non-returning valve) in most hand pumps which practically eliminates leakage.

Hand-tight  Quick Connectors
Allows easy connecting and disconnecting to the test pump without the need for PTFE tape or wrenches.


Deionized water

Pressure Range
85% vacuum to 15,000psi (1,000bar) positive pressure.

Ram/adapters:  SST 
Body: SST/aluminum
Seals: Buna-N

Hand-tight connectors for both test gauge and reference gauge.
Test Gauge Connection: 1/4NPT female, 1/4BSP female, M20X1.5 female
Reference Gauge Connection: 1/4NPT female, 1/4BSP female, or M20X1.5 female

Height:  230 mm
Base:  520 mm x 360 mm

Weight:  16 kg 

Warranty: one year 


 ADT938 Order Information website

Accessories Included

Description Qty
O-Ring 20 pcs
Manual 1 pc

* For when water media is not requested

Optional Accessories ADT

Model Number Description
ADT102 Adapters & fittings, 1/4NPT male to  various male and  female connectors (26pcs)
ADT103 Adapters & fittings, 1/4NPT (1/4BSP or M20X1.5) male to  various female hand tight quick connectors (10pcs)
9908 Carrying case for one ADT936, ADT937, ADT938 or ADT949 pump and two pressure test gauges

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