DPPV (+125 PSI to -23 INHG) Pump, 1/8" MNPT Gauge Adapter, 3ft Hose, 1/4" MNPT Process Conn.

Ralston calibration test pumps are portable, high-quality hand pumps for generating pneumatic pressure, hydraulic pressure, and vacuum. Designed for precision calibration and pressure testing in oil & gas, petrochemical, maritime, pharmaceutical, and aerospace industries.

Key Features:

• Hydraulic models reach 5,000 psi (QTHP) or 10,000 psi (XTHP) with balanced reservoir design

• Pneumatic scissor pumps (DCAP) reach 650 psi with pressure/vacuum switching capability

• Lightweight and extremely durable construction

• Easy disassembly and field repair with standard hand tools

• Quick-test adapters for leak-free, wrench-free connections

• Compatible with most liquids (hydraulic models)

• Ideal for transmitter calibration, switch testing, and unpowered field applications

The Ralston DPPV (+125 PSI to -23 INHG) Pump, 1/8" MNPT Gauge Adapter, 3ft Hose, 1/4" MNPT Process Conn. # DPPV-1MBA is manufactured by Ralston Instruments. Valley Instrument Service is an authorized Ralston Instruments dealer offering full sales support, NIST-traceable calibration, and expert technical assistance.