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Pressure Calibration Equipment
Model number Description
Test kit for ADT912A (barb fitting, connection hoses, and adapters).
X=connection type e.g. N-1/4NPTM, N2-1/2NPTM, B-1/4BSPM, B2-
1/2BSPM, M-M20X1.5M.
Adapters and ttings, 1/4NPT male to various male and female connection (25
Adapters and ttings, 1/4NPT (1/2NPT, 1/4BSP, 1/2BSP, or M20X1.5) male
to various female hand-tight quick connectors (10 pcs).
Hose test kit, 5 feet exible hose, 8,000 psi, user selectable male (1/4NPT,
1/2NPT, 1/4BSP, 1/2BSP, M20) to user selectable female hand tight quick
9904-912 Carrying Case for one 912A pump and two gauges.
ADT912A-MK Maintenance kit for Additel 912A pump
9240 Differential pressure gauge holder
Low Pressure Test Pump
Additel 912A
The 912A Pneumatic Pressure Test Pump is a hand operated pressure pump designed to generate pressure from
95% vacuum to 60 psi (4 bar). A high-quality screw press is designed for ne pressure adjustment, with an adjustment
resolution up to 0.1 Pa (0.001 mbar). The 912A is a very stable low pressure calibrator. It makes use of an isothermal
bellows chamber which is designed for reducing the possible effects of environmental temperature change. Most
pumps make use of a check valve (non-returning valve) and are not well insulated which will cause large uctuations
in pressure with a change in ambient temperature or when the unit is touched. The 912A does not use a check valve
and is remarkably stable. Two hand-tight connectors installed on the pump allow easy connecting and disconnecting
to the test pump without the need for PTFE tape or wrenches. The 912A is an ideal comparison test pump for low
pressure application.
Portable: Only 6.2 lb (2.8 kg)
Adjustment Resolution
0.1 Pa (0.001 mbar)
High-quality screw press for ne pressure adjustment
Great Stability
Isothermal chamber: the pressure chamber is
insulated to reduce the influence from environmental
temperature changes
Specially designed bellows minimize leakage to
guarantee excellent stability
Shut-off valve closes the air in the isothermal chamber
during calibration
Durable and Minimal Maintenance
Built-in gas-liquid isolator protects the pump from
moisture and dirt
Hand-tight Quick Connectors
Allows easy connecting and disconnecting to the test
pump without the need for PTFE tape or wrenches
Media: Air.
Generated Pressure Range
95% vacuum to 60 psi (4 bar) positive pressure
Adjustment Resolution: 0.1 Pa (0.001 mbar).
Material: Ram/adapters: SS
Body: SS, aluminum
Seals: Buna-N, PTFE, Copper Alloy
Piston volume: 1.6 in
(27 ml )
Hand-tight connectors for both test gauge and
reference gauge.
1/4NPT female, 1/2NPT female, 1/4BSP female,
1/2BSP female, or M20X1.5 female
Height: 5.51'' (140 mm)
Base: 10.75'' (273 mm) x 10.16'' (258 mm)
Weight: 6.2 lb (2.8 kg)
Warranty: 1 year
Optional Accessories
Accessories included
O-ring: 20 pcs
Carrying case (912A-X-SETmodels only)
Model Number
Generate 95% vacuum to 60 psi (4 bar) pressure
Great stability and high resolution
Minimal maintenance
Hand-tight quick connectors
Note: For oil free applications contact Additel.
Pressure port type:
N -
NPT female
N2 - 1/2NPT female
B - 1/4BSP female
B2 - 1/2BSP female
M-M20X1.5 female
SET: Pump and
carrying case