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Family Owned & Operated Since 1971• Bakersfield, CA
Valley Instrument
Ralston QTVC Precision Volume Controller
Ralston Instruments

QTVC Volume Controller, 1/8 in MNPT Gauge Adapter, 6ft, 3ft Hoses, (2) 1/4" MNPT Process Conn.

SKU: QTVC-1MBA-6-3

QTVC volume controller, 1/8 in MNPT gauge adapter, 6ft, 3ft hoses, (2) 1/4" MNPT process conn.

$2,144.37

List price. Volume pricing available.

This is one of 17 factory configurations. Need a different sensor or option mix? Compare versions and pricing in the Configure tab below.

Authorized Dealer
Calibration Available
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Expert Support

Ralston nitrogen calibration systems use compressed gas volume controllers to enable both ultra-precise low-pressure differential and high-pressure static pressure calibrations with nitrogen using the same device. Unlike conventional regulators, these controllers provide seamless, stable pressure control across any pressure range.

Key Features:

• Dual capability: low-pressure differential and high-pressure static calibrations

• Stable pressure control across the full range without fill-and-bleed cycling

• Suitable for absolute pressure, vacuum gauge, and airspeed indicator calibration

• Differential pressure transmitter and static pressure transmitter calibration

• Deadweight tester replacement capability

• Safety relief valve testing support

The Ralston QTVC Volume Controller, 1/8 in MNPT Gauge Adapter, 6ft, 3ft Hoses, (2) 1/4" MNPT Process Conn. QTVC-1MBA-6-3 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.

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