Part No.
DV0V (25"Hg / 650 mm Hg Vac) pump, 30 In Hg vacuum
analog gauge
Create a vacuum and calibrate pressure
devices with included vacuum pump and
vacuum gauge
• Light weight, compact pump generates -25” Hg vacuum with
• Large volume fine adjustment piston provides precise control,
even at very low vacuums
• Modular design makes field maintenance quick and easy
• Precisely vent pressure with soft seated bleed valve
• Two outlet ports provide connections for both pressure
reference and for device under test thus eliminating a tee
• 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 temperature fluctuations
• Made in U.S.A.
Item Includes
• Hand Pump - DV0V Assembly (DV0V)
• Gauge - 0-30 Inch Hg Vacuum Analog Test Gauge (GAUG-30HG)
• Gauge Adapter - 1/4" female NPT x female QT, no check-valve, brass (QTHA-2FBA)
• Hose - Quick-test hose, brass hose ends, 3 ft (92 cm) long (QTQT-HOS-3ft)
• Hose Adapter - 1/4" male NPT x male QT, no check-valve, brass (QTHA-2MB0)
Vacuum Range
0 to 23"Hg (0 to 584 mmHG)
Gauge Vacuum Range
0 to 30"Hg (0 to 762 mmHG)
Outlet Port1
Male Quick-test, brass
Outlet Port2
Male Quick-test with cap and chain, brass
Temperature Range
0 to 130 °F (-18 to 54 °C)
Gauge Temperature
-40 to 140 °F (-40 to 60 °C)
Anodized Aluminum, Brass, Stainless Steel
Seal Materials
Buna-N, Delrin, Teflon
Fine Adjust Resolution
±0.01 psi
2.78 lb (1.3 kg)
H: 9.75 in (24.765 cm) x W: 7.93 in (20.1422 cm) x D: 2.9 in (7.366 cm)
Ralston Instruments Inc. | ralstoninst.com | Toll Free 800-347-6575 | Phone 440-564-1430 | Fax 440-564-1480