01
Corporate Headquarters
2900 Saturn St #B
Brea, CA 92821, USA
Salt Lake City Office
1364 West State Rd. Suite 101
Pleasant Grove, UT 84062, USA
Pressure / Process Calibration Equipment
Phone: 714-998-6899 Fax: 714-998-6999 Email: sales@additel.com
Rev # 20231229
Low Pressure Test Pump
Additel 901B
OVERVIEW
The 901B Low Pressure Test Pump is a hand operated pressure pump designed to generate pressures from -6 psi (-0.4
bar) to 6 psi (0.4 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 901B 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 901B 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 901B is an ideal comparison test pump for low pressure applications.
Portable: Only 3.5 lb (1.6 kg)
Adjustment Resolution
0.1Pa (0.001 mbar); Specially designed screw press
for ne pressure adjustment.
Great Stability
Isothermal chamber: the pressure chamber is
insulated to reduce the inuence from environmental
temperature changes.
Specially designed bellows minimize leakage to
guarantee excellent stability.
Durable and Minimal Maintenance
Without non-returning valve that is usually used on
troublesome hand pump.
Easy-to-use
Pressure could be set and adjusted precisely and
quickly through a simple turn of the handle.
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
6 psi (0.4 bar) vacuum to 6 psi (0.4 bar) positive pressure.
Adjustment Resolution: 0.1 Pa (0.001 mbar).
Material:
Ram/adapters: SS
Body: SS, aluminum
Seals: Buna-N, PTFE, Copper Alloy
Connection
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
Dimensions: Height: 5.7'' (145mm)
Base: 9.65'' (245 mm) x 6.50'' (165mm)
Weight: 3.5 lb (1.6 kg).
Warranty: 1 year.
FEATURES SPECIFICATIONS
Optional Accessories
Model number Description
ADT901B-X-kit
Test kit for ADT901B (barb tting, connection hoses, and adapters).
X=connection type e.g. N-1/4NPTM, N2-1/2NPTM, B-1/4BSPM, B2-1/2BSPM,
M-M20X1.5M.
ADT102
Adapters and ttings, 1/4NPT male to various male and female connection (25
pcs). More information shown on page 69
ADT103
Adapters and ttings, 1/4NPT (1/2NPT, 1/4BSP, 1/2BSP, or M20X1.5) male to
various female hand-tight quick connectors (10 pcs). More information shown
on page 70
9901-901
Carrying Case for one ADT901B pump and two ADT681 gauges or ADT672
calibrators
ADT901B-MK Maintenance kit for Additel 901B pump
9240A DP gauge holder with a built-in 80 ml chamber
Accessories included
O-ring: 20 pcs
Manual: 1 pc
Carrying case (901B-X-SETmodels only)
ORDERING INFORMATION
Pressure port type:
N -
1/4
NPT female
N2 - 1/2NPT female
B - 1/4BSP female
B2 - 1/2BSP female
M-M20X1.5 female
Model
ADT901B N
Model Number
Generate 6 psi (0.4 bar) vacuum to 6 psi (0.4 bar) pressure
Portable, only 3.5 lb
Great stability and high resolution
Minimal maintenance
Hand-tight quick connectors
Note: For oil free applications contact Additel.
SET
SET: Pump and
carrying case
included
