Ralston Logo Ralston Instruments Made In the USA

APGV-4GBW

300 psi (20 bar) APGV pump, 1/2" female BSPP gauge swivel, hose, process connection

Quick and efficient pneumatic field testing of pressure transmitters, gauges or switches.


  • Portable, hand operated pump easily generates 300 psi (20 bar) without electricity or compressed air
  • Light, compact pump can be easily transported to remote locations
  • Fine adjustment piston allows the user to achieve an exact pressure for cardinal point pressure calibrations
  • Precisely vent pressure with soft seated bleed valve
  • Quick-disconnect gauge adapter allows changing test gauges without using a wrench
  • 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 improves temperature and pressure stability
  • Made in U.S.A.

Item Includes

  • Hand Pump - APGV Assembly (APGV)
  • Gauge Adapter - 1/2" female BSPP swivel, brass (SWIV-4GBW)
  • Hose - Quick-test hose, brass hose ends, 1 m (3.3 ft) long (QTQT-HOS-1m)
  • Hose Adapter - G 1/4" female BSPP (ISO 228/1) x male QT, no check-valve, brass (QTHA-2FB0-RG)

Pressure Range0 to 300 psi (0 to 21 bar)
MediaAir
Outlet PortMale Quick-test, brass
Temperature range0 to 130 °F (-18 to 54 °C)
ConstructionAluminum, Brass, Plated Steel, Stainless Steel
Seal materialsBuna-N, Delrin, Teflon
Fine adjust resolution±0.01 psi
Weight1.64 lb (0.7 kg)
DimensionsH: 9.5 in (24.13 cm) x W: 4.75 in (12.065 cm) x D: 3.2 in (8.128 cm)