Pietro Fiorentini Dival 500 Regulator
The Pietro Fiorentini Dival 500 regulator is a spring-loaded, diaphragm-controlled gas pressure regulator ideal for low-, medium-, and high-pressure gas distribution systems. Designed for both industrial and civil installations, this regulator is widely used due to its precise pressure control, fail-open operation, and high flow rate capacity.
Its modular design makes it easy to maintain and upgrade—such as retrofitting a slam-shut device without altering existing piping. Internal and external sensing options allow flexibility for a wide range of applications.
Key Features:
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Balanced Plug Design: Maintains stable outlet pressure regardless of inlet pressure changes.
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Fail-Open Operation: Ensures flow continues in the event of diaphragm failure or pressure loss.
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High Accuracy: Maintains consistent pressure even at maximum flow rates.
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Modular Upgrades: Easily retrofit with slam-shut (OPSO/UPSO) devices without changing pipe layout.
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No Internal Leakage: Secure shutoff when flow is zero.
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Quick Maintenance: Serviceable without removing from pipeline.
Benefits:
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Suitable for civil and industrial natural gas systems
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Accurate performance in fluctuating flow and pressure conditions
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Reduced response time with a low lock-up pressure zone
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Simple integration with external or internal sensing lines
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Low maintenance with long-lasting internal components
Applications:
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Commercial and industrial gas distribution
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Natural gas gate stations
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Burner systems with rapid flow changes
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Installations requiring optional OPSO/UPSO protection
Construction & Compliance:
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Manufactured to UNI 8827 and EN standards
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Available in multiple pressure and size configurations
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Compliant with PED (97/23/EC) safety standards
Related Resources
Description |
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Dival 500 Data Sheet.pdf |
Dival 500 Technical Manual.pdf |
Dival 500 Packet.pdf |
Dival 500 Diagram.pdf |