Fixed-Flow Calibration Gas Regulator — 0.25 LPM (MSA, RKI, Altair, GX-3R, C10)

Fixed-Flow Calibration Gas Regulator — 0.25 LPM for Bump Testing

The fixed-flow calibration gas regulator delivers a steady 0.25 LPM from a C10 calibration-gas cylinder to your monitor — the regulator half of a bump-test kit for any diffusion portable gas detector, compatible with MSA Altair and RKI GX-3R families.

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The Fixed-Flow Calibration Gas Regulator is a 0.25 LPM nickel-brass regulator with a C10 fitting, compatible with MSA Altair and RKI GX-3R gas monitors for bump testing and calibration.

Key features

• Controls calibration gas flow at a fixed 0.25 LPM for bump testing and calibration
• Fits standard C10-threaded calibration-gas cylinders
• Compatible with MSA Altair and RKI GX-3R families and other diffusion monitors
• Durable nickel-plated brass construction
• The regulator half of a complete bump-test kit
• From Ideal Calibrations, a dedicated calibration-accessory maker

Specifications

Where the Fixed-Flow Calibration Gas Regulator fits

• Bump-testing 4-gas monitors
• Periodic calibration
• Confined-space program compliance
• Verifying alarm response
• Fleet calibration setups

What the Fixed-Flow Calibration Gas Regulator works with

This regulator fits standard C10-threaded calibration-gas cylinders — pair it with the Norlab 4-gas calibration gas — and suits diffusion monitors including the MSA Altair and RKI GX-3R families. It delivers a fixed 0.25 LPM, the correct flow for diffusion instruments. Use it to maintain monitors across the Portable Gas Detectors and Personal & Wearable Gas Detectors hubs, or browse the full Gas Detectors range. Pumped (sample-draw) monitors instead need a demand-flow regulator. Confirm your cylinder uses the C10 thread before ordering.

Cross-shopping? This unit sits in our Gas Detector Calibration & Accessories hub alongside Norlab 4-Gas Cal Gas. For other gas-detection form factors see Portable Gas Detectors, Personal & Wearable Gas Detectors, Fixed Gas Detection Systems, or browse the full Gas Detectors range.

Building a bump-test kit

This regulator is the flow-control half of a bump-test kit. Pair it with the Norlab 4-gas calibration gas (or the matching single-gas cylinder) to bump-test and calibrate the monitors across your program.

• Order this fixed-flow regulator for diffusion monitors (MSA Altair, RKI GX-3R and similar).
• Pair it with the Norlab 4-gas calibration gas to complete the kit.
• Use it to maintain monitors across the Portable Gas Detectors and Personal & Wearable Gas Detectors hubs.

Frequently asked questions

What does a calibration gas regulator do?

It controls the flow of calibration gas from the cylinder to the monitor during a bump test or calibration. A fixed-flow regulator delivers a constant rate (here 0.25 LPM).

What monitors is this regulator compatible with?

Diffusion monitors including the MSA Altair, Altair 4/4X/4XR and RKI GX-3R/Pro families, plus other instruments that take a standard C10 cylinder feed.

Fixed-flow or demand-flow — which do I need?

Fixed-flow (this regulator) suits diffusion monitors; pumped (sample-draw) monitors draw their own sample and use a demand-flow regulator. Match the regulator to your monitor type.

What fitting does it use?

A C10 fitting, the standard thread on most calibration-gas cylinders. Confirm your cylinder is C10 before ordering.

Do I need calibration gas too?

Yes — the regulator controls flow but you also need a gas cylinder. Pair it with the Norlab 4-gas calibration gas or a matching single-gas cylinder.

What flow rate is it?

A fixed 0.25 LPM (liters per minute), the standard flow for bump-testing and calibrating diffusion gas monitors.

What is it made of?

Nickel-plated brass for durability and corrosion resistance.

Can I use it with any calibration gas brand?

Yes — any C10-threaded calibration-gas cylinder works; the regulator is gas-agnostic and controls flow only.

Why bump-test at all?

Bump testing confirms the monitor's sensors and alarms respond to gas — a daily check that protects the worker relying on the instrument.

Is it in stock and how does it ship?

Use the Amazon buy button for current availability and delivery timing through our fulfillment partner.

Does it fit pumped monitors?

No — pumped monitors use a demand-flow regulator. This fixed-flow model is for diffusion monitors.

Is Ideal Calibrations a reputable maker?

Yes — Ideal Calibrations specializes in calibration accessories and regulators for major gas-monitor brands.