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The Vanaz V-4329 Slam Shut Valve Flanged is a heavy-duty safety device used in LPG and Natural Gas pressure regulating systems to prevent hazardous overpressure conditions.
Installed immediately after the gas filter and before the regulator, it continuously monitors downstream pressure through an impulse sensing line. Under normal operation, the valve remains open, allowing uninterrupted gas flow. When pressure exceeds the preset safety limit, it instantly shuts off the gas supply to protect downstream equipment and pipelines.
Built for industrial pipelines with secure flanged connections and high flow handling capability.
Rapidly isolates gas flow when unsafe pressure conditions are detected.
Continuously monitors downstream pressure for accurate and fast response.
Requires manual reopening after system correction and safety inspection.
Designed for long-lasting performance in demanding gas environments.
Protects regulators, pipelines, and downstream systems from failure.
Acts as a critical emergency isolation device in gas distribution networks.
Ensures immediate shutdown during hazardous pressure conditions.
Reduces stress and wear on connected gas system components.
Maintains consistent safety performance in continuous-use systems.
The Vanaz V-4329 Slam Shut Valve Flanged is installed:
This ensures precise monitoring and fast emergency isolation.
The Vanaz V-4329 provides dependable and fast-acting protection against dangerous overpressure conditions in industrial gas systems.
Its high-capacity flanged construction, precise sensing mechanism, and instant shut-off response make it a critical safety component for modern gas networks.
It automatically shuts off gas flow during overpressure conditions.
Between the filter and regulator.
Yes, it activates instantly when pressure exceeds safe limits.
Yes, after resolving the fault condition.
It prevents accidents, equipment damage, and gas system failures.
Name | Gas | Flow | Working Pressure | Set Pressure | End Connection |
V- 4329 L.P | LPG/NG | 0-600 Nm3/h | 20 KG/CM2 | 0.05-0.5 KG/CM2 | 3" NB Flanged as per ANSI 150# (V4329) |
V- 4329 H.P | Natural, LPG, Nitrogen, CO2 | 2000 Nm3/hr (or as per requirement) | 0.5 - 19 Kg/cm2 (or as per requirement) | 0.05 - 5 Kg/cm2 (150 - 300 mbar) (or as per requirement) | 3" NB Flanged as per ANSI 150# (V4329) |
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