Pneumatic Pressure / Vacuum Hand Pumps (direct acting)
DPPV (100 psi / 7 bar) pressure, (-25” Hg / -635 mm Hg) vacuum
The ideal solution for either differential pressure or vacuum calibration
using a precision test gauge or pressure calibrator as the pressure refer-
ence.
Features:
Generate either 100 psi (7 bar) pressure or -25” Hg (-635 mm Hg) vacuum
with the same pump
Unique design allows the user to convert from pressure to vacuum by
simply twisting a knob, even with gloves on
Two outlet ports allow connection to reference pressure gauge or pressure
calibrator as well as device under test, thus eliminating a tee
Large volume fine adjustment piston provides precise control, even at very
low pressures
Precisely vent pressure with soft seated bleed valve
Low volume Quick-test hose, gauge adapter and process connection can
be attached to pump without thread sealant or a wrench
Rugged, all metal construction reduces pressure changes due to tempera-
ture fluctuations
Made in U.S.A.
Specifications
Pump connection type
Maximum pressure
Maximum vacuum
Style
Pressure media
Fine adjust resolution
Reference connection (brass)
Outlet port 1 (brass)
Outlet port 2 (brass)
Calibration hose (brass ends)
Process connection (brass)
Construction
Seal material
Weight
National Pipe Thread (NPT)
100 psi (7 bar)
-25” Hg (-635 mm Hg)
Direct acting
Air
± 0.001 psi (0.07 mbar)
See below
Male Quick-test (QTHA-3SB0)
Male Quick-test with cap and chain (QTFT-3SB0)
(1) 3 ft (92 cm) long (QTQT-HOS-3’)
(1) 1/4” male NPT (QTHA-2MB0)
Anodized aluminum, brass, plated steel
Buna-N, Teflon™, Delrin™
1.9 lb (860 g)
British Parallel Thread (BSPP)*
100 psi (7 bar)
-25” Hg (-635 mm Hg)
Direct acting
Air
± 0.001 psi (0.07 mbar)
See below
Male Quick-test (QTHA-3SB0)
Male Quick-test with cap and chain (QTFT-3SB0)
(1) 1 m (3.3 ft) long (QTQT-HOS-1m)
(1) 1/4” female BSPP (QTHA-2FB0-RG)
Anodized aluminum, brass, plated steel
Buna-N, Teflon™, Delrin™
1.9 lb (860 g)
Ordering Information
DPPV pumps with NPT connections
Model
DPPV-1MBA
DPPV-2MBA
DPPV-2FBA
DPPV-0000
DPPV pumps with BSPP connections*
Model
DPPV-2FBA-RG
DPPV-3FBA-RG
DPPV-4FBA-RG
Description
DPPV pump, 1/4” female BSPP gauge adapter (QTHA-2FBA-RG), hose, process connection
DPPV pump, 3/8” female BSPP gauge adapter (QTHA-3FBA-RG), hose, process connection
DPPV pump, 1/2” female BSPP gauge adapter (QTHA-4FBA-RG), hose, process connection
Description
DPPV pump, 1/8” male NPT gauge adapter (QTHA-1MBA), hose, process connection
DPPV pump, 1/4” female NPT gauge adapter (QTHA-2MBA), hose, process connection
DPPV pump, 1/4” female NPT gauge adapter (QTHA-2FBA), hose, process connection
DPPV pump, no gauge adapter, with hose and process connection
* Not for sale in North American market
For accessories, repair kits and hoses see page 17. For a complete list of accessories and parts see product manual or detailed specification sheet.
For a list of the most commonly used gauge and process connections see page 18. For a complete list refer to Ralston Instruments
Pressure
Connection
catalog. Contact your Ralston Instruments dealer or the factory for information on reference gauges and pressure calibration kits.
R al ston I ns truments, LLC
w w w. ral sto nins t.com
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RALSTON [ RALSTON INSTRUMENTS. ]
