Reduce leaks and save valuable time in the field with the revolutionary Ralston Calibration Manifold. This unique, hand-held compressed gas controller provides exceptional control right where you need it most - directly at the device under test.
Ralston Calibration Manifolds come in a variety of different configurations. Choose which bundle is right for your application.

Part of the Ralston Quick-test™ System of safe, stable, leak-free connections without a wrench.

Leave the bulky rig of valves and fittings back at the truck. The portable calibration manifold requires very little space for operation. Just hook up a compressed gas cylinder at one end, a device to be calibrated on the other, and a gauge in the middle. It’s that simple.

Fine-adjustment piston with soft-seated fill and vent valves delivers ultra-precise pressure control, allowing technicians to quickly reach the test points required to perform static calibrations.


QTCM Brass Manifold - for pressure calibration from 0 to 3000 psi
QSCM Stainless Steel Manifold - for higher pressure calibration from 0 to 5000 psi, with greater chemical compatibility

Features Ralston Quick-test™ fittings, hoses and adapters for no-tool, no- thread tape, leak-free connections.
Discover the cost-saving potential of calibrating with nitrogen
We’ll help you find the right solution for your application, whether you’re working in the field or a lab.