CalGaz Model 2001 Demand Flow Regulator
€325.00
CalGaz - Accessories
CalGaz Model 2001 Demand Flow Regulator
€325.00
CalGaz - Accessories
The CalGaz Model 2001 Demand Flow Regulator (DFR 2001) is a premium two-stage calibration gas regulator designed specifically for use with pumped gas detectors and gas analysers. Unlike fixed-flow regulators, the Model 2001 only delivers calibration gas when the instrument creates a vacuum, automatically matching the instrument’s demand and shutting off the gas flow as soon as the pump stops. This eliminates unnecessary gas waste while making bump testing and calibration faster, safer, and more economical.
Compatible with the most common disposable calibration gas cylinders, the Model 2001 is trusted across industries including pharmaceuticals, manufacturing, utilities, wastewater treatment, petrochemical facilities and confined space safety.
Key Features
- Demand flow operation for pumped gas detectors
- Two-stage regulator design for stable gas delivery
- Automatically supplies only the gas required by the instrument
- Stops gas flow immediately when the instrument pump stops
- Eliminates the need for sample bags and external flow meters
- Nickel-plated brass construction for durability
- Easy-to-read pressure gauge
- Suitable for most non-reactive calibration gas mixtures
- Simple installation using standard C-10 cylinder connection
- 24-month manufacturer warranty (recommended replacement after two years of service)
Typical Applications
The CalGaz Model 2001 is ideal for:
- Portable gas detector calibration
- Daily bump testing
- Multi-gas detector servicing
- Fixed gas detector maintenance
- Industrial hygiene monitoring
- Environmental monitoring
- Pharmaceutical manufacturing
- Food & beverage processing
- Oil & gas facilities
- Chemical manufacturing
- Water and wastewater treatment
Compatible Instruments
Suitable for virtually any instrument that uses an internal sampling pump, including:
- Honeywell BW gas detectors
- RAE Systems portable gas detectors
- MultiRAE and MiniRAE instruments
- MRU flue gas analysers
- Personal gas monitors with pump modules
- Confined space monitors
- Industrial gas analysers
Technical Specifications
| Specification | Value |
|---|---|
| Model | DFR 2001 |
| Regulator Type | Two-stage Demand Flow |
| Flow Range | 0–3 L/min (automatic demand) |
| Maximum Inlet Pressure | 70 bar (1000 psi) |
| Demand Pressure | 3″ H₂O (5.6 mm Hg) |
| Inlet Connection | 5/8″-18 UNF (C-10) |
| Outlet Connection | 3/16″ (4.8 mm) Hose Barb |
| Pressure Gauge | 0–70 bar (0–1000 psi) |
| Body Material | Nickel-plated Brass |
| Diaphragm | Buna |
| Piston | Nickel-plated Brass |
| Piston Seal | PTFE |
| Seat Material | Buna |
| Weight | Approximately 0.63 kg |
| Warranty | 24 Months |
Compatible Cylinder Sizes
The Model 2001 is compatible with CalGaz disposable cylinders featuring a C-10 valve connection, including:
- 34 L (2AL)
- 58 L (8AL)
- 103 L (6D)
- 116 L (10AL)
Benefits of a Demand Flow Regulator
Unlike traditional fixed-flow regulators, a demand flow regulator only supplies gas when the detector actively draws it through its internal pump.
This offers several important advantages:
- Extends calibration gas cylinder life
- Reduces wasted gas
- Eliminates operator error when selecting flow rates
- Faster calibration setup
- No external flow meter required
- No sample bags required
- Consistent and repeatable gas delivery
- Lower long-term operating costs
Why Buy from Q Instrument Services?
As an authorised supplier of CalGaz calibration equipment, Q Instrument Services provides:
- Genuine CalGaz products
- Expert technical advice
- Fast delivery throughout Ireland
- Calibration accessories in stock
- Ongoing support for Honeywell BW, RAE Systems and MRU instruments
- Over 25 years of experience in gas detection and calibration equipment
