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Dival 507-512 Medium-Low Pressure Gas Regulator - Pietro Fiorentini Saudi Arabia H2 Ready
Direct Operated Regulator

Dival 507-512

Medium-Low Pressure Gas Regulator

A direct-operated gas pressure regulator controlled by diaphragm and spring action, designed for previously filtered gaseous fluids in medium and low pressure distribution networks. Hydrogen-ready for NG-H2 blending applications. Classified as Fail Open according to European Standard EN 334.

H2 Ready
Up to 20 bar
Fail Open
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Technical Specifications

Performance
Accuracy Class (AC)Up to 10 / up to 1% absolute
Lock-up Pressure Class (SG)Up to 20
Downstream Pressure Range (Wd)BP: 15-110 mbar, MP: 80-300 mbar, TR: 300-3000 mbar
Inlet Pressure Range (bpu)BP: (Pd + 0.1) to 10 bar, MP/TR: (Pd + 0.1) to 20 bar
Min. Differential Pressure0.1 bar
Construction
Design Pressure10 bar (BP), 20 bar (MP/TR)
Design Temperature-20°C to +60°C
Nominal Sizes1″, 1-1/2″
ConnectionsThreaded Rp EN 10226-1, NPT ASME B1.20.1
Fail ModeFail Open (EN 334)

Applications

Gas Distribution MP
Gas Distribution LP
Commercial Applications
Residential Applications
NG-H2 Blending
Filtered Gases

Key Features

Hydrogen Ready

Certified for NG-H2 blending applications.

Direct Operated

Diaphragm-controlled with spring action for reliable operation.

Fail Open Safety

Classified as Fail Open per European Standard EN 334.

Multiple Pressure Ranges

Available in BP, MP, and TR versions for different pressure applications.

Slam Shut Option

Available with slam shut configuration for enhanced safety.

High Accuracy

Achieves accuracy class up to 10 or 1% absolute depending on conditions.

Downloads

Technical documentation and resources

Flyer

PDF - English

Technical Manual

PDF - English

Technical Brochure

PDF - English

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