Pressure Regulators
Pressure control for gas, liquid, hydraulic and specialist process applications.
Range & Configurations
- Low-flow regulators
- Medium-flow regulators
- High-flow regulators
- Analyser and instrumentation regulators
- Back-pressure regulators
- Hydraulic regulators
- Hydrogen regulators
- Diving and subsea regulators
- Cylinder valves
- Actuated valves
- Speciality gas regulators

Selection & Technical Information
Pressure Tech ranges are selected around required flow, inlet pressure, controlled pressure, media compatibility and operating temperature. Pressure-reducing and back-pressure duties require different configurations.
Typical Applications
- Gas supply
- Process analysis
- Hydraulic testing
- Hydrogen systems
What to Include in Your Enquiry
Reducing or back-pressure duty, inlet range, set pressure, flow rate, fluid and connection sizes.
EN 10204 Type 3.1 certification is standard for this product range. Type 3.2 certification must be requested before manufacture.
Browse Technical Downloads →Common Questions
Can FSZ help identify a replacement?
Yes. Provide the product marking, dimensions, connections and service details. We will check the proposed selection before quotation.
Is this range stocked in Zambia?
Local stockholding is planned to support Zambian requirements. Our team confirms local or regional availability and delivery for the exact items requested.
Specify the Regulator Duty and Gas Delivery Route
| Selection item | What to provide or check |
|---|---|
| Duty | State whether the requirement is pressure reduction or back-pressure control. |
| Pressure and flow | Provide inlet pressure range, required controlled pressure and operating flow. A range maximum is not a rating for every configuration. |
| Media and materials | Identify the gas or liquid, mixture and purity where relevant, temperature, materials and cleaning requirements. |
| Connections | Provide inlet and outlet sizes, cylinder connection if applicable, and instrument requirements. |
| Continuity and accessories | For cylinder supply, state whether interruption is acceptable and identify changeover, indication, isolation or relief requirements. |
Regulator guidance
- Speciality gas regulators: cylinder supply to the instrument
- Pressure Tech back-pressure regulator guidance
- Manufacturer speciality-gas range
Can one regulator be selected for every gas?
No. Provide the precise gas or mixture, purity and operating duty. Confirm materials, cleaning and the selected configuration against the current manufacturer documentation.
Is the maximum pressure the only selection criterion?
No. Flow, required controlled-pressure range, stability, connections and media compatibility also matter. The speciality-gas guide above explains the complete supply route.
Tell us what your plant needs.
Send a product reference, drawing or requirement. Our team will follow up to help define the right solution.
